2024-09-09 08:52:07 +00:00
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/*
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* dvb_demux.c - DVB kernel demux API
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*
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* Copyright (C) 2000-2001 Ralph Metzler <ralph@convergence.de>
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* & Marcus Metzler <marcus@convergence.de>
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* for convergence integrated media GmbH
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*
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2024-09-09 08:57:42 +00:00
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* Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
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2024-09-09 08:52:07 +00:00
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#include <linux/sched.h>
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#include <linux/spinlock.h>
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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#include <linux/module.h>
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#include <linux/poll.h>
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#include <linux/string.h>
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#include <linux/crc32.h>
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#include <asm/uaccess.h>
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#include <asm/div64.h>
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#include "dvb_demux.h"
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#define NOBUFS
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/*
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** #define DVB_DEMUX_SECTION_LOSS_LOG to monitor payload loss in the syslog
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*/
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// #define DVB_DEMUX_SECTION_LOSS_LOG
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static int dvb_demux_tscheck;
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module_param(dvb_demux_tscheck, int, 0644);
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MODULE_PARM_DESC(dvb_demux_tscheck,
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"enable transport stream continuity and TEI check");
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static int dvb_demux_speedcheck;
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module_param(dvb_demux_speedcheck, int, 0644);
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MODULE_PARM_DESC(dvb_demux_speedcheck,
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"enable transport stream speed check");
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2024-09-09 08:57:42 +00:00
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static int dvb_demux_feed_err_pkts = 1;
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module_param(dvb_demux_feed_err_pkts, int, 0644);
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MODULE_PARM_DESC(dvb_demux_feed_err_pkts,
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"when set to 0, drop packets with the TEI bit set (1 by default)");
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2024-09-09 08:52:07 +00:00
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/* counter advancing for each new dvb-demux device */
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static int dvb_demux_index;
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static int dvb_demux_performancecheck;
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module_param(dvb_demux_performancecheck, int, 0644);
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MODULE_PARM_DESC(dvb_demux_performancecheck,
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"enable transport stream performance check, reported through debugfs");
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#define dprintk_tscheck(x...) do { \
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if (dvb_demux_tscheck && printk_ratelimit()) \
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printk(x); \
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} while (0)
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static const struct dvb_dmx_video_patterns mpeg2_seq_hdr = {
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{0x00, 0x00, 0x01, 0xB3},
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{0xFF, 0xFF, 0xFF, 0xFF},
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4,
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DMX_IDX_MPEG_SEQ_HEADER
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};
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static const struct dvb_dmx_video_patterns mpeg2_gop = {
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{0x00, 0x00, 0x01, 0xB8},
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{0xFF, 0xFF, 0xFF, 0xFF},
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4,
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DMX_IDX_MPEG_GOP
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};
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static const struct dvb_dmx_video_patterns mpeg2_iframe = {
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{0x00, 0x00, 0x01, 0x00, 0x00, 0x08},
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{0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x38},
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6,
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DMX_IDX_MPEG_I_FRAME_START
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};
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static const struct dvb_dmx_video_patterns mpeg2_pframe = {
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{0x00, 0x00, 0x01, 0x00, 0x00, 0x10},
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{0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x38},
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6,
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DMX_IDX_MPEG_P_FRAME_START
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};
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static const struct dvb_dmx_video_patterns mpeg2_bframe = {
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{0x00, 0x00, 0x01, 0x00, 0x00, 0x18},
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{0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x38},
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6,
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DMX_IDX_MPEG_B_FRAME_START
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};
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static const struct dvb_dmx_video_patterns h264_sps = {
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{0x00, 0x00, 0x01, 0x07},
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{0xFF, 0xFF, 0xFF, 0x1F},
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4,
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DMX_IDX_H264_SPS
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};
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static const struct dvb_dmx_video_patterns h264_pps = {
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{0x00, 0x00, 0x01, 0x08},
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{0xFF, 0xFF, 0xFF, 0x1F},
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4,
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DMX_IDX_H264_PPS
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};
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static const struct dvb_dmx_video_patterns h264_idr = {
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{0x00, 0x00, 0x01, 0x05, 0x80},
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{0xFF, 0xFF, 0xFF, 0x1F, 0x80},
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5,
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DMX_IDX_H264_IDR_START
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};
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static const struct dvb_dmx_video_patterns h264_non_idr = {
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{0x00, 0x00, 0x01, 0x01, 0x80},
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{0xFF, 0xFF, 0xFF, 0x1F, 0x80},
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5,
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DMX_IDX_H264_NON_IDR_START
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};
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2024-09-09 08:57:42 +00:00
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static const struct dvb_dmx_video_patterns h264_non_access_unit_del = {
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{0x00, 0x00, 0x01, 0x09},
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{0xFF, 0xFF, 0xFF, 0x1F},
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4,
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DMX_IDX_H264_ACCESS_UNIT_DEL
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};
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static const struct dvb_dmx_video_patterns h264_non_sei = {
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{0x00, 0x00, 0x01, 0x06},
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{0xFF, 0xFF, 0xFF, 0x1F},
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4,
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DMX_IDX_H264_SEI
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};
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2024-09-09 08:52:07 +00:00
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static const struct dvb_dmx_video_patterns vc1_seq_hdr = {
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{0x00, 0x00, 0x01, 0x0F},
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{0xFF, 0xFF, 0xFF, 0xFF},
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4,
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DMX_IDX_VC1_SEQ_HEADER
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};
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static const struct dvb_dmx_video_patterns vc1_entry_point = {
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{0x00, 0x00, 0x01, 0x0E},
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{0xFF, 0xFF, 0xFF, 0xFF},
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4,
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DMX_IDX_VC1_ENTRY_POINT
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};
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static const struct dvb_dmx_video_patterns vc1_frame = {
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{0x00, 0x00, 0x01, 0x0D},
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{0xFF, 0xFF, 0xFF, 0xFF},
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4,
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DMX_IDX_VC1_FRAME_START
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};
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/******************************************************************************
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* static inlined helper functions
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******************************************************************************/
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static inline u16 section_length(const u8 *buf)
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{
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return 3 + ((buf[1] & 0x0f) << 8) + buf[2];
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}
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2024-09-09 08:57:42 +00:00
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static inline u8 ts_scrambling_ctrl(const u8 *buf)
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2024-09-09 08:52:07 +00:00
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{
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return (buf[3] >> 6) & 0x3;
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}
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static inline u8 payload(const u8 *tsp)
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{
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if (!(tsp[3] & 0x10)) // no payload?
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return 0;
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if (tsp[3] & 0x20) { // adaptation field?
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if (tsp[4] > 183) // corrupted data?
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return 0;
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else
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return 184 - 1 - tsp[4];
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}
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return 184;
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}
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static u32 dvb_dmx_crc32(struct dvb_demux_feed *f, const u8 *src, size_t len)
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{
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return (f->feed.sec.crc_val = crc32_be(f->feed.sec.crc_val, src, len));
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}
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static void dvb_dmx_memcopy(struct dvb_demux_feed *f, u8 *d, const u8 *s,
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size_t len)
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{
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memcpy(d, s, len);
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}
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static u32 dvb_dmx_calc_time_delta(struct timespec past_time)
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{
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struct timespec curr_time, delta_time;
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u64 delta_time_us;
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curr_time = current_kernel_time();
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delta_time = timespec_sub(curr_time, past_time);
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delta_time_us = ((s64)delta_time.tv_sec * USEC_PER_SEC) +
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delta_time.tv_nsec / 1000;
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return (u32)delta_time_us;
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}
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/******************************************************************************
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* Software filter functions
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******************************************************************************/
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/*
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* Check if two patterns are identical, taking mask into consideration.
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* @pattern1: the first byte pattern to compare.
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* @pattern2: the second byte pattern to compare.
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* @mask: the bit mask to use.
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* @pattern_size: the length of both patterns and the mask, in bytes.
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*
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* Return: 1 if patterns match, 0 otherwise.
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*/
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static inline int dvb_dmx_patterns_match(const u8 *pattern1, const u8 *pattern2,
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const u8 *mask, size_t pattern_size)
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{
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int i;
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/*
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* Assumption: it is OK to access pattern1, pattern2 and mask.
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* This function performs no sanity checks to keep things fast.
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*/
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for (i = 0; i < pattern_size; i++)
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if ((pattern1[i] & mask[i]) != (pattern2[i] & mask[i]))
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return 0;
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return 1;
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}
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/*
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* dvb_dmx_video_pattern_search -
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* search for framing patterns in a given buffer.
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*
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* Optimized version: first search for a common substring, e.g. 0x00 0x00 0x01.
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* If this string is found, go over all the given patterns (all must start
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* with this string) and search for their ending in the buffer.
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*
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* Assumption: the patterns we look for do not spread over more than two
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* buffers.
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*
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* @paterns: the full patterns information to look for.
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* @patterns_num: the number of patterns to look for.
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* @buf: the buffer to search.
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* @buf_size: the size of the buffer to search. we search the entire buffer.
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* @prefix_size_masks: a bit mask (per pattern) of possible prefix sizes to use
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* when searching for a pattern that started at the last buffer.
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* Updated in this function for use in the next lookup.
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* @results: lookup results (offset, type, used_prefix_size) per found pattern,
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* up to DVB_DMX_MAX_FOUND_PATTERNS.
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*
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* Return:
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* Number of patterns found (up to DVB_DMX_MAX_FOUND_PATTERNS).
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* 0 if pattern was not found.
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* error value on failure.
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*/
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int dvb_dmx_video_pattern_search(
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const struct dvb_dmx_video_patterns
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*patterns[DVB_DMX_MAX_SEARCH_PATTERN_NUM],
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int patterns_num,
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const u8 *buf,
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size_t buf_size,
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struct dvb_dmx_video_prefix_size_masks *prefix_size_masks,
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struct dvb_dmx_video_patterns_results *results)
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{
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int i, j;
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unsigned int current_size;
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u32 prefix;
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int found = 0;
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int start_offset = 0;
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/* the starting common substring to look for */
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u8 string[] = {0x00, 0x00, 0x01};
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/* the mask for the starting string */
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u8 string_mask[] = {0xFF, 0xFF, 0xFF};
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/* the size of the starting string (in bytes) */
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size_t string_size = 3;
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if ((patterns == NULL) || (patterns_num <= 0) || (buf == NULL))
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return -EINVAL;
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memset(results, 0, sizeof(struct dvb_dmx_video_patterns_results));
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/*
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* handle prefix - disregard string, simply check all patterns,
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* looking for a matching suffix at the very beginning of the buffer.
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*/
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for (j = 0; (j < patterns_num) && !found; j++) {
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prefix = prefix_size_masks->size_mask[j];
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current_size = 32;
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while (prefix) {
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if (prefix & (0x1 << (current_size - 1))) {
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/*
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* check that we don't look further
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* than buf_size boundary
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*/
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if ((int)(patterns[j]->size - current_size) >
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buf_size)
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break;
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if (dvb_dmx_patterns_match(
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(patterns[j]->pattern + current_size),
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buf, (patterns[j]->mask + current_size),
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(patterns[j]->size - current_size))) {
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/*
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* pattern found using prefix at the
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* very beginning of the buffer, so
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* offset is 0, but we already zeroed
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* everything in the beginning of the
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* function. that's why the next line
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* is commented.
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*/
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/* results->info[found].offset = 0; */
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results->info[found].type =
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patterns[j]->type;
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results->info[found].used_prefix_size =
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current_size;
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found++;
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/*
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* save offset to start looking from
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* in the buffer, to avoid reusing the
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* data of a pattern we already found.
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*/
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start_offset = (patterns[j]->size -
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current_size);
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if (found >= DVB_DMX_MAX_FOUND_PATTERNS)
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|
|
|
goto next_prefix_lookup;
|
|
|
|
/*
|
|
|
|
* we don't want to search for the same
|
|
|
|
* pattern with several possible prefix
|
|
|
|
* sizes if we have already found it,
|
|
|
|
* so we break from the inner loop.
|
|
|
|
* since we incremented 'found', we
|
|
|
|
* will not search for additional
|
|
|
|
* patterns using a prefix - that would
|
|
|
|
* imply ambiguous patterns where one
|
|
|
|
* pattern can be included in another.
|
|
|
|
* the for loop will exit.
|
|
|
|
*/
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
prefix &= ~(0x1 << (current_size - 1));
|
|
|
|
current_size--;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Search buffer for entire pattern, starting with the string.
|
|
|
|
* Note the external for loop does not execute if buf_size is
|
|
|
|
* smaller than string_size (the cast to int is required, since
|
|
|
|
* size_t is unsigned).
|
|
|
|
*/
|
|
|
|
for (i = start_offset; i < (int)(buf_size - string_size + 1); i++) {
|
|
|
|
if (dvb_dmx_patterns_match(string, (buf + i), string_mask,
|
|
|
|
string_size)) {
|
|
|
|
/* now search for patterns: */
|
|
|
|
for (j = 0; j < patterns_num; j++) {
|
|
|
|
/* avoid overflow to next buffer */
|
|
|
|
if ((i + patterns[j]->size) > buf_size)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (dvb_dmx_patterns_match(
|
|
|
|
(patterns[j]->pattern + string_size),
|
|
|
|
(buf + i + string_size),
|
|
|
|
(patterns[j]->mask + string_size),
|
|
|
|
(patterns[j]->size - string_size))) {
|
|
|
|
|
|
|
|
results->info[found].offset = i;
|
|
|
|
results->info[found].type =
|
|
|
|
patterns[j]->type;
|
|
|
|
/*
|
|
|
|
* save offset to start next prefix
|
|
|
|
* lookup, to avoid reusing the data
|
|
|
|
* of any pattern we already found.
|
|
|
|
*/
|
|
|
|
if ((i + patterns[j]->size) >
|
|
|
|
start_offset)
|
|
|
|
start_offset = (i +
|
|
|
|
patterns[j]->size);
|
|
|
|
/*
|
|
|
|
* did not use a prefix to find this
|
|
|
|
* pattern, but we zeroed everything
|
|
|
|
* in the beginning of the function.
|
|
|
|
* So no need to zero used_prefix_size
|
|
|
|
* for results->info[found]
|
|
|
|
*/
|
|
|
|
|
|
|
|
found++;
|
|
|
|
if (found >= DVB_DMX_MAX_FOUND_PATTERNS)
|
|
|
|
goto next_prefix_lookup;
|
|
|
|
/*
|
|
|
|
* theoretically we don't have to break
|
|
|
|
* here, but we don't want to search
|
|
|
|
* for the other matching patterns on
|
|
|
|
* the very same same place in the
|
|
|
|
* buffer. That would mean the
|
|
|
|
* (pattern & mask) combinations are
|
|
|
|
* not unique. So we break from inner
|
|
|
|
* loop and move on to the next place
|
|
|
|
* in the buffer.
|
|
|
|
*/
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
next_prefix_lookup:
|
|
|
|
/* check for possible prefix sizes for the next buffer */
|
|
|
|
for (j = 0; j < patterns_num; j++) {
|
|
|
|
prefix_size_masks->size_mask[j] = 0;
|
|
|
|
for (i = 1; i < patterns[j]->size; i++) {
|
|
|
|
/*
|
|
|
|
* avoid looking outside of the buffer
|
|
|
|
* or reusing previously used data.
|
|
|
|
*/
|
|
|
|
if (i > (buf_size - start_offset))
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (dvb_dmx_patterns_match(patterns[j]->pattern,
|
|
|
|
(buf + buf_size - i),
|
|
|
|
patterns[j]->mask, i)) {
|
|
|
|
prefix_size_masks->size_mask[j] |=
|
|
|
|
(1 << (i - 1));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return found;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_video_pattern_search);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* dvb_dmx_notify_section_event() - Notify demux event for all filters of a
|
|
|
|
* specified section feed.
|
|
|
|
*
|
|
|
|
* @feed: dvb_demux_feed object
|
|
|
|
* @event: demux event to notify
|
|
|
|
* @should_lock: specifies whether the function should lock the demux
|
|
|
|
*
|
|
|
|
* Caller is responsible for locking the demux properly, either by doing the
|
|
|
|
* locking itself and setting 'should_lock' to 0, or have the function do it
|
|
|
|
* by setting 'should_lock' to 1.
|
|
|
|
*/
|
|
|
|
int dvb_dmx_notify_section_event(struct dvb_demux_feed *feed,
|
|
|
|
struct dmx_data_ready *event, int should_lock)
|
|
|
|
{
|
|
|
|
struct dvb_demux_filter *f;
|
|
|
|
|
|
|
|
if (feed == NULL || event == NULL || feed->type != DMX_TYPE_SEC)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (!should_lock && !spin_is_locked(&feed->demux->lock))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (should_lock)
|
|
|
|
spin_lock(&feed->demux->lock);
|
|
|
|
|
|
|
|
f = feed->filter;
|
|
|
|
while (f && feed->feed.sec.is_filtering) {
|
|
|
|
feed->data_ready_cb.sec(&f->filter, event);
|
|
|
|
f = f->next;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (should_lock)
|
|
|
|
spin_unlock(&feed->demux->lock);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_notify_section_event);
|
|
|
|
|
|
|
|
static int dvb_dmx_check_pes_end(struct dvb_demux_feed *feed)
|
|
|
|
{
|
|
|
|
struct dmx_data_ready data;
|
|
|
|
|
|
|
|
if (!feed->pusi_seen)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
data.status = DMX_OK_PES_END;
|
|
|
|
data.data_length = 0;
|
|
|
|
data.pes_end.start_gap = 0;
|
|
|
|
data.pes_end.actual_length = feed->peslen;
|
|
|
|
data.pes_end.disc_indicator_set = 0;
|
|
|
|
data.pes_end.pes_length_mismatch = 0;
|
|
|
|
data.pes_end.stc = 0;
|
|
|
|
data.pes_end.tei_counter = feed->pes_tei_counter;
|
|
|
|
data.pes_end.cont_err_counter = feed->pes_cont_err_counter;
|
|
|
|
data.pes_end.ts_packets_num = feed->pes_ts_packets_num;
|
|
|
|
|
|
|
|
return feed->data_ready_cb.ts(&feed->feed.ts, &data);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int dvb_dmx_swfilter_payload(struct dvb_demux_feed *feed,
|
|
|
|
const u8 *buf)
|
|
|
|
{
|
|
|
|
int count = payload(buf);
|
|
|
|
int p;
|
|
|
|
int ccok;
|
|
|
|
u8 cc;
|
2024-09-09 08:57:42 +00:00
|
|
|
int ret;
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
if (count == 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
p = 188 - count;
|
|
|
|
|
|
|
|
cc = buf[3] & 0x0f;
|
|
|
|
if (feed->first_cc)
|
|
|
|
ccok = 1;
|
|
|
|
else
|
|
|
|
ccok = ((feed->cc + 1) & 0x0f) == cc;
|
|
|
|
|
|
|
|
feed->first_cc = 0;
|
|
|
|
feed->cc = cc;
|
|
|
|
|
|
|
|
/* PUSI ? */
|
|
|
|
if (buf[1] & 0x40) {
|
|
|
|
dvb_dmx_check_pes_end(feed);
|
|
|
|
feed->pusi_seen = 1;
|
|
|
|
feed->peslen = 0;
|
|
|
|
feed->pes_tei_counter = 0;
|
|
|
|
feed->pes_cont_err_counter = 0;
|
2024-09-09 08:57:42 +00:00
|
|
|
feed->pes_ts_packets_num = 0;
|
2024-09-09 08:52:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (feed->pusi_seen == 0)
|
|
|
|
return 0;
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
ret = feed->cb.ts(&buf[p], count, NULL, 0, &feed->feed.ts, DMX_OK);
|
2024-09-09 08:52:07 +00:00
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
/* Verify TS packet was copied successfully */
|
|
|
|
if (!ret) {
|
|
|
|
feed->pes_cont_err_counter += !ccok;
|
|
|
|
feed->pes_tei_counter += (buf[1] & 0x80) ? 1 : 0;
|
|
|
|
feed->pes_ts_packets_num++;
|
|
|
|
feed->peslen += count;
|
|
|
|
}
|
2024-09-09 08:52:07 +00:00
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
return ret;
|
2024-09-09 08:52:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int dvb_dmx_swfilter_sectionfilter(struct dvb_demux_feed *feed,
|
|
|
|
struct dvb_demux_filter *f)
|
|
|
|
{
|
|
|
|
u8 neq = 0;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < DVB_DEMUX_MASK_MAX; i++) {
|
|
|
|
u8 xor = f->filter.filter_value[i] ^ feed->feed.sec.secbuf[i];
|
|
|
|
|
|
|
|
if (f->maskandmode[i] & xor)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
neq |= f->maskandnotmode[i] & xor;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (f->doneq && !neq)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return feed->cb.sec(feed->feed.sec.secbuf, feed->feed.sec.seclen,
|
|
|
|
NULL, 0, &f->filter, DMX_OK);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int dvb_dmx_swfilter_section_feed(struct dvb_demux_feed *feed)
|
|
|
|
{
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
struct dvb_demux_filter *f = feed->filter;
|
|
|
|
struct dmx_section_feed *sec = &feed->feed.sec;
|
|
|
|
int section_syntax_indicator;
|
|
|
|
|
|
|
|
if (!sec->is_filtering)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (!f)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (sec->check_crc) {
|
|
|
|
struct timespec pre_crc_time;
|
|
|
|
|
|
|
|
if (dvb_demux_performancecheck)
|
|
|
|
pre_crc_time = current_kernel_time();
|
|
|
|
|
|
|
|
section_syntax_indicator = ((sec->secbuf[1] & 0x80) != 0);
|
|
|
|
if (section_syntax_indicator &&
|
|
|
|
demux->check_crc32(feed, sec->secbuf, sec->seclen)) {
|
|
|
|
if (dvb_demux_performancecheck)
|
|
|
|
demux->total_crc_time +=
|
|
|
|
dvb_dmx_calc_time_delta(pre_crc_time);
|
|
|
|
|
|
|
|
/* Notify on CRC error */
|
|
|
|
feed->cb.sec(NULL, 0, NULL, 0,
|
|
|
|
&f->filter, DMX_CRC_ERROR);
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dvb_demux_performancecheck)
|
|
|
|
demux->total_crc_time +=
|
|
|
|
dvb_dmx_calc_time_delta(pre_crc_time);
|
|
|
|
}
|
|
|
|
|
|
|
|
do {
|
|
|
|
if (dvb_dmx_swfilter_sectionfilter(feed, f) < 0)
|
|
|
|
return -1;
|
|
|
|
} while ((f = f->next) && sec->is_filtering);
|
|
|
|
|
|
|
|
sec->seclen = 0;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dvb_dmx_swfilter_section_new(struct dvb_demux_feed *feed)
|
|
|
|
{
|
|
|
|
struct dmx_section_feed *sec = &feed->feed.sec;
|
|
|
|
|
|
|
|
#ifdef DVB_DEMUX_SECTION_LOSS_LOG
|
|
|
|
if (sec->secbufp < sec->tsfeedp) {
|
|
|
|
int i, n = sec->tsfeedp - sec->secbufp;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Section padding is done with 0xff bytes entirely.
|
|
|
|
* Due to speed reasons, we won't check all of them
|
|
|
|
* but just first and last.
|
|
|
|
*/
|
|
|
|
if (sec->secbuf[0] != 0xff || sec->secbuf[n - 1] != 0xff) {
|
|
|
|
printk("dvb_demux.c section ts padding loss: %d/%d\n",
|
|
|
|
n, sec->tsfeedp);
|
|
|
|
printk("dvb_demux.c pad data:");
|
|
|
|
for (i = 0; i < n; i++)
|
|
|
|
printk(" %02x", sec->secbuf[i]);
|
|
|
|
printk("\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
sec->tsfeedp = sec->secbufp = sec->seclen = 0;
|
|
|
|
sec->secbuf = sec->secbuf_base;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Losless Section Demux 1.4.1 by Emard
|
|
|
|
* Valsecchi Patrick:
|
|
|
|
* - middle of section A (no PUSI)
|
|
|
|
* - end of section A and start of section B
|
|
|
|
* (with PUSI pointing to the start of the second section)
|
|
|
|
*
|
|
|
|
* In this case, without feed->pusi_seen you'll receive a garbage section
|
|
|
|
* consisting of the end of section A. Basically because tsfeedp
|
|
|
|
* is incemented and the use=0 condition is not raised
|
|
|
|
* when the second packet arrives.
|
|
|
|
*
|
|
|
|
* Fix:
|
|
|
|
* when demux is started, let feed->pusi_seen = 0 to
|
|
|
|
* prevent initial feeding of garbage from the end of
|
|
|
|
* previous section. When you for the first time see PUSI=1
|
|
|
|
* then set feed->pusi_seen = 1
|
|
|
|
*/
|
|
|
|
static int dvb_dmx_swfilter_section_copy_dump(struct dvb_demux_feed *feed,
|
|
|
|
const u8 *buf, u8 len)
|
|
|
|
{
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
struct dmx_section_feed *sec = &feed->feed.sec;
|
|
|
|
u16 limit, seclen, n;
|
|
|
|
|
|
|
|
if (sec->tsfeedp >= DMX_MAX_SECFEED_SIZE)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (sec->tsfeedp + len > DMX_MAX_SECFEED_SIZE) {
|
|
|
|
#ifdef DVB_DEMUX_SECTION_LOSS_LOG
|
|
|
|
printk("dvb_demux.c section buffer full loss: %d/%d\n",
|
|
|
|
sec->tsfeedp + len - DMX_MAX_SECFEED_SIZE,
|
|
|
|
DMX_MAX_SECFEED_SIZE);
|
|
|
|
#endif
|
|
|
|
len = DMX_MAX_SECFEED_SIZE - sec->tsfeedp;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (len <= 0)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
demux->memcopy(feed, sec->secbuf_base + sec->tsfeedp, buf, len);
|
|
|
|
sec->tsfeedp += len;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Dump all the sections we can find in the data (Emard)
|
|
|
|
*/
|
|
|
|
limit = sec->tsfeedp;
|
|
|
|
if (limit > DMX_MAX_SECFEED_SIZE)
|
|
|
|
return -1; /* internal error should never happen */
|
|
|
|
|
|
|
|
/* to be sure always set secbuf */
|
|
|
|
sec->secbuf = sec->secbuf_base + sec->secbufp;
|
|
|
|
|
|
|
|
for (n = 0; sec->secbufp + 2 < limit; n++) {
|
|
|
|
seclen = section_length(sec->secbuf);
|
|
|
|
if (seclen <= 0 || seclen > DMX_MAX_SECTION_SIZE
|
|
|
|
|| seclen + sec->secbufp > limit)
|
|
|
|
return 0;
|
|
|
|
sec->seclen = seclen;
|
|
|
|
sec->crc_val = ~0;
|
|
|
|
/* dump [secbuf .. secbuf+seclen) */
|
|
|
|
if (feed->pusi_seen)
|
|
|
|
dvb_dmx_swfilter_section_feed(feed);
|
|
|
|
#ifdef DVB_DEMUX_SECTION_LOSS_LOG
|
|
|
|
else
|
|
|
|
printk("dvb_demux.c pusi not seen, discarding section data\n");
|
|
|
|
#endif
|
|
|
|
sec->secbufp += seclen; /* secbufp and secbuf moving together is */
|
|
|
|
sec->secbuf += seclen; /* redundant but saves pointer arithmetic */
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
static int dvb_dmx_swfilter_section_one_packet(struct dvb_demux_feed *feed,
|
2024-09-09 08:52:07 +00:00
|
|
|
const u8 *buf)
|
|
|
|
{
|
|
|
|
u8 p, count;
|
|
|
|
int ccok, dc_i = 0;
|
|
|
|
u8 cc;
|
|
|
|
|
|
|
|
count = payload(buf);
|
|
|
|
|
|
|
|
if (count == 0) /* count == 0 if no payload or out of range */
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
p = 188 - count; /* payload start */
|
|
|
|
|
|
|
|
cc = buf[3] & 0x0f;
|
|
|
|
if (feed->first_cc)
|
|
|
|
ccok = 1;
|
|
|
|
else
|
|
|
|
ccok = ((feed->cc + 1) & 0x0f) == cc;
|
|
|
|
|
|
|
|
/* discard TS packets holding sections with TEI bit set */
|
|
|
|
if (buf[1] & 0x80)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
feed->first_cc = 0;
|
|
|
|
feed->cc = cc;
|
|
|
|
|
|
|
|
if (buf[3] & 0x20) {
|
|
|
|
/* adaption field present, check for discontinuity_indicator */
|
|
|
|
if ((buf[4] > 0) && (buf[5] & 0x80))
|
|
|
|
dc_i = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!ccok || dc_i) {
|
|
|
|
#ifdef DVB_DEMUX_SECTION_LOSS_LOG
|
|
|
|
printk("dvb_demux.c discontinuity detected %d bytes lost\n",
|
|
|
|
count);
|
|
|
|
/*
|
|
|
|
* those bytes under sume circumstances will again be reported
|
|
|
|
* in the following dvb_dmx_swfilter_section_new
|
|
|
|
*/
|
|
|
|
#endif
|
|
|
|
/*
|
|
|
|
* Discontinuity detected. Reset pusi_seen = 0 to
|
|
|
|
* stop feeding of suspicious data until next PUSI=1 arrives
|
|
|
|
*/
|
|
|
|
feed->pusi_seen = 0;
|
|
|
|
dvb_dmx_swfilter_section_new(feed);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (buf[1] & 0x40) {
|
|
|
|
/* PUSI=1 (is set), section boundary is here */
|
|
|
|
if (count > 1 && buf[p] < count) {
|
|
|
|
const u8 *before = &buf[p + 1];
|
|
|
|
u8 before_len = buf[p];
|
|
|
|
const u8 *after = &before[before_len];
|
|
|
|
u8 after_len = count - 1 - before_len;
|
|
|
|
|
|
|
|
dvb_dmx_swfilter_section_copy_dump(feed, before,
|
|
|
|
before_len);
|
|
|
|
/* before start of new section, set pusi_seen = 1 */
|
|
|
|
feed->pusi_seen = 1;
|
|
|
|
dvb_dmx_swfilter_section_new(feed);
|
|
|
|
dvb_dmx_swfilter_section_copy_dump(feed, after,
|
|
|
|
after_len);
|
|
|
|
}
|
|
|
|
#ifdef DVB_DEMUX_SECTION_LOSS_LOG
|
|
|
|
else if (count > 0)
|
|
|
|
printk("dvb_demux.c PUSI=1 but %d bytes lost\n", count);
|
|
|
|
#endif
|
|
|
|
} else {
|
|
|
|
/* PUSI=0 (is not set), no section boundary */
|
|
|
|
dvb_dmx_swfilter_section_copy_dump(feed, &buf[p], count);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
/*
|
|
|
|
* dvb_dmx_swfilter_section_packet - wrapper for section filtering of single
|
|
|
|
* TS packet.
|
|
|
|
*
|
|
|
|
* @feed: dvb demux feed
|
|
|
|
* @buf: buffer containing the TS packet
|
|
|
|
* @should_lock: specifies demux locking semantics: if not set, proper demux
|
|
|
|
* locking is expected to have been done by the caller.
|
|
|
|
*
|
|
|
|
* Return error status
|
|
|
|
*/
|
|
|
|
int dvb_dmx_swfilter_section_packet(struct dvb_demux_feed *feed,
|
|
|
|
const u8 *buf, int should_lock)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (!should_lock && !spin_is_locked(&feed->demux->lock)) {
|
|
|
|
pr_err("%s: demux spinlock should have been locked\n",
|
|
|
|
__func__);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (should_lock)
|
|
|
|
spin_lock(&feed->demux->lock);
|
|
|
|
|
|
|
|
ret = dvb_dmx_swfilter_section_one_packet(feed, buf);
|
|
|
|
|
|
|
|
if (should_lock)
|
|
|
|
spin_unlock(&feed->demux->lock);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_swfilter_section_packet);
|
|
|
|
|
|
|
|
static int dvb_demux_idx_event_sort(struct dmx_index_event_info *curr,
|
|
|
|
struct dmx_index_event_info *new)
|
|
|
|
{
|
|
|
|
if (curr->match_tsp_num > new->match_tsp_num)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (curr->match_tsp_num < new->match_tsp_num)
|
|
|
|
return 1;
|
|
|
|
/*
|
|
|
|
* In case TSP numbers are equal, sort according to event type giving
|
|
|
|
* priority to PUSI events first, then RAI and finally framing events.
|
|
|
|
*/
|
|
|
|
if ((curr->type & DMX_IDX_RAI && new->type & DMX_IDX_PUSI) ||
|
|
|
|
(!(curr->type & DMX_IDX_PUSI) && !(curr->type & DMX_IDX_RAI) &&
|
|
|
|
new->type & (DMX_IDX_PUSI | DMX_IDX_RAI)))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:52:07 +00:00
|
|
|
static int dvb_demux_save_idx_event(struct dvb_demux_feed *feed,
|
|
|
|
struct dmx_index_event_info *idx_event,
|
|
|
|
int traverse_from_tail)
|
|
|
|
{
|
|
|
|
struct dmx_index_entry *idx_entry;
|
|
|
|
struct dmx_index_entry *curr_entry;
|
|
|
|
struct list_head *pos;
|
|
|
|
|
|
|
|
/* get entry from free list */
|
|
|
|
if (list_empty(&feed->rec_info->idx_info.free_list)) {
|
2024-09-09 08:57:42 +00:00
|
|
|
pr_err("%s: index free list is empty\n", __func__);
|
2024-09-09 08:52:07 +00:00
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
idx_entry = list_first_entry(&feed->rec_info->idx_info.free_list,
|
|
|
|
struct dmx_index_entry, next);
|
|
|
|
list_del(&idx_entry->next);
|
|
|
|
|
|
|
|
idx_entry->event = *idx_event;
|
|
|
|
|
|
|
|
pos = &feed->rec_info->idx_info.ready_list;
|
|
|
|
if (traverse_from_tail) {
|
|
|
|
list_for_each_entry_reverse(curr_entry,
|
|
|
|
&feed->rec_info->idx_info.ready_list, next) {
|
2024-09-09 08:57:42 +00:00
|
|
|
if (dvb_demux_idx_event_sort(&curr_entry->event,
|
|
|
|
idx_event)) {
|
2024-09-09 08:52:07 +00:00
|
|
|
pos = &curr_entry->next;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
list_for_each_entry(curr_entry,
|
|
|
|
&feed->rec_info->idx_info.ready_list, next) {
|
2024-09-09 08:57:42 +00:00
|
|
|
if (!dvb_demux_idx_event_sort(&curr_entry->event,
|
|
|
|
idx_event)) {
|
2024-09-09 08:52:07 +00:00
|
|
|
pos = &curr_entry->next;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (traverse_from_tail)
|
|
|
|
list_add(&idx_entry->next, pos);
|
|
|
|
else
|
|
|
|
list_add_tail(&idx_entry->next, pos);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int dvb_demux_push_idx_event(struct dvb_demux_feed *feed,
|
2024-09-09 08:57:42 +00:00
|
|
|
struct dmx_index_event_info *idx_event, int should_lock)
|
2024-09-09 08:52:07 +00:00
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
if (!should_lock && !spin_is_locked(&feed->demux->lock))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (should_lock)
|
|
|
|
spin_lock(&feed->demux->lock);
|
2024-09-09 08:52:07 +00:00
|
|
|
ret = dvb_demux_save_idx_event(feed, idx_event, 1);
|
2024-09-09 08:57:42 +00:00
|
|
|
if (should_lock)
|
|
|
|
spin_unlock(&feed->demux->lock);
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_demux_push_idx_event);
|
|
|
|
|
|
|
|
static inline void dvb_dmx_notify_indexing(struct dvb_demux_feed *feed)
|
|
|
|
{
|
|
|
|
struct dmx_data_ready dmx_data_ready;
|
|
|
|
struct dmx_index_entry *curr_entry;
|
|
|
|
struct list_head *n, *pos;
|
|
|
|
|
|
|
|
dmx_data_ready.status = DMX_OK_IDX;
|
|
|
|
|
|
|
|
list_for_each_safe(pos, n, &feed->rec_info->idx_info.ready_list) {
|
|
|
|
curr_entry = list_entry(pos, struct dmx_index_entry, next);
|
|
|
|
|
|
|
|
if ((feed->rec_info->idx_info.min_pattern_tsp_num == (u64)-1) ||
|
|
|
|
(curr_entry->event.match_tsp_num <=
|
|
|
|
feed->rec_info->idx_info.min_pattern_tsp_num)) {
|
|
|
|
dmx_data_ready.idx_event = curr_entry->event;
|
|
|
|
feed->data_ready_cb.ts(&feed->feed.ts, &dmx_data_ready);
|
|
|
|
list_del(&curr_entry->next);
|
|
|
|
list_add_tail(&curr_entry->next,
|
|
|
|
&feed->rec_info->idx_info.free_list);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
void dvb_dmx_notify_idx_events(struct dvb_demux_feed *feed, int should_lock)
|
2024-09-09 08:52:07 +00:00
|
|
|
{
|
2024-09-09 08:57:42 +00:00
|
|
|
if (!should_lock && !spin_is_locked(&feed->demux->lock))
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (should_lock)
|
|
|
|
spin_lock(&feed->demux->lock);
|
2024-09-09 08:52:07 +00:00
|
|
|
dvb_dmx_notify_indexing(feed);
|
2024-09-09 08:57:42 +00:00
|
|
|
if (should_lock)
|
|
|
|
spin_unlock(&feed->demux->lock);
|
2024-09-09 08:52:07 +00:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_notify_idx_events);
|
|
|
|
|
|
|
|
static void dvb_dmx_process_pattern_result(struct dvb_demux_feed *feed,
|
|
|
|
struct dvb_dmx_video_patterns_results *patterns, int pattern,
|
|
|
|
u64 curr_stc, u64 prev_stc,
|
|
|
|
u64 curr_match_tsp, u64 prev_match_tsp,
|
|
|
|
u64 curr_pusi_tsp, u64 prev_pusi_tsp)
|
|
|
|
{
|
|
|
|
int mpeg_frame_start;
|
|
|
|
int h264_frame_start;
|
|
|
|
int vc1_frame_start;
|
|
|
|
int seq_start;
|
|
|
|
u64 frame_end_in_seq;
|
|
|
|
struct dmx_index_event_info idx_event;
|
|
|
|
|
|
|
|
idx_event.pid = feed->pid;
|
|
|
|
if (patterns->info[pattern].used_prefix_size) {
|
|
|
|
idx_event.match_tsp_num = prev_match_tsp;
|
|
|
|
idx_event.last_pusi_tsp_num = prev_pusi_tsp;
|
|
|
|
idx_event.stc = prev_stc;
|
|
|
|
} else {
|
|
|
|
idx_event.match_tsp_num = curr_match_tsp;
|
|
|
|
idx_event.last_pusi_tsp_num = curr_pusi_tsp;
|
|
|
|
idx_event.stc = curr_stc;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* notify on frame-end if needed */
|
|
|
|
if (feed->prev_frame_valid) {
|
|
|
|
if (feed->prev_frame_type & DMX_IDX_MPEG_I_FRAME_START) {
|
|
|
|
idx_event.type = DMX_IDX_MPEG_I_FRAME_END;
|
|
|
|
frame_end_in_seq = DMX_IDX_MPEG_FIRST_SEQ_FRAME_END;
|
|
|
|
} else if (feed->prev_frame_type & DMX_IDX_MPEG_P_FRAME_START) {
|
|
|
|
idx_event.type = DMX_IDX_MPEG_P_FRAME_END;
|
|
|
|
frame_end_in_seq = DMX_IDX_MPEG_FIRST_SEQ_FRAME_END;
|
|
|
|
} else if (feed->prev_frame_type & DMX_IDX_MPEG_B_FRAME_START) {
|
|
|
|
idx_event.type = DMX_IDX_MPEG_B_FRAME_END;
|
|
|
|
frame_end_in_seq = DMX_IDX_MPEG_FIRST_SEQ_FRAME_END;
|
|
|
|
} else if (feed->prev_frame_type & DMX_IDX_H264_IDR_START) {
|
|
|
|
idx_event.type = DMX_IDX_H264_IDR_END;
|
|
|
|
frame_end_in_seq = DMX_IDX_H264_FIRST_SPS_FRAME_END;
|
|
|
|
} else if (feed->prev_frame_type & DMX_IDX_H264_NON_IDR_START) {
|
|
|
|
idx_event.type = DMX_IDX_H264_NON_IDR_END;
|
|
|
|
frame_end_in_seq = DMX_IDX_H264_FIRST_SPS_FRAME_END;
|
|
|
|
} else {
|
|
|
|
idx_event.type = DMX_IDX_VC1_FRAME_END;
|
|
|
|
frame_end_in_seq = DMX_IDX_VC1_FIRST_SEQ_FRAME_END;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (feed->idx_params.types & idx_event.type)
|
|
|
|
dvb_demux_save_idx_event(feed, &idx_event, 1);
|
|
|
|
|
|
|
|
if (feed->first_frame_in_seq_notified &&
|
|
|
|
feed->idx_params.types & frame_end_in_seq) {
|
|
|
|
idx_event.type = frame_end_in_seq;
|
|
|
|
dvb_demux_save_idx_event(feed, &idx_event, 1);
|
|
|
|
feed->first_frame_in_seq_notified = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
seq_start = patterns->info[pattern].type &
|
|
|
|
(DMX_IDX_MPEG_SEQ_HEADER | DMX_IDX_H264_SPS |
|
|
|
|
DMX_IDX_VC1_SEQ_HEADER);
|
|
|
|
|
|
|
|
/* did we find start of sequence/SPS? */
|
|
|
|
if (seq_start) {
|
|
|
|
feed->first_frame_in_seq = 1;
|
|
|
|
feed->first_frame_in_seq_notified = 0;
|
|
|
|
feed->prev_frame_valid = 0;
|
|
|
|
idx_event.type = patterns->info[pattern].type;
|
|
|
|
if (feed->idx_params.types & idx_event.type)
|
|
|
|
dvb_demux_save_idx_event(feed, &idx_event, 1);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
mpeg_frame_start = patterns->info[pattern].type &
|
|
|
|
(DMX_IDX_MPEG_I_FRAME_START |
|
|
|
|
DMX_IDX_MPEG_P_FRAME_START |
|
|
|
|
DMX_IDX_MPEG_B_FRAME_START);
|
|
|
|
|
|
|
|
h264_frame_start = patterns->info[pattern].type &
|
|
|
|
(DMX_IDX_H264_IDR_START | DMX_IDX_H264_NON_IDR_START);
|
|
|
|
|
|
|
|
vc1_frame_start = patterns->info[pattern].type &
|
|
|
|
DMX_IDX_VC1_FRAME_START;
|
|
|
|
|
|
|
|
if (!mpeg_frame_start && !h264_frame_start && !vc1_frame_start) {
|
|
|
|
/* neither sequence nor frame, notify on the entry if needed */
|
|
|
|
idx_event.type = patterns->info[pattern].type;
|
|
|
|
if (feed->idx_params.types & idx_event.type)
|
|
|
|
dvb_demux_save_idx_event(feed, &idx_event, 1);
|
|
|
|
feed->prev_frame_valid = 0;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* notify on first frame in sequence/sps if needed */
|
|
|
|
if (feed->first_frame_in_seq) {
|
|
|
|
feed->first_frame_in_seq = 0;
|
|
|
|
feed->first_frame_in_seq_notified = 1;
|
|
|
|
if (mpeg_frame_start)
|
|
|
|
idx_event.type = DMX_IDX_MPEG_FIRST_SEQ_FRAME_START;
|
|
|
|
else if (h264_frame_start)
|
|
|
|
idx_event.type = DMX_IDX_H264_FIRST_SPS_FRAME_START;
|
|
|
|
else
|
|
|
|
idx_event.type = DMX_IDX_VC1_FIRST_SEQ_FRAME_START;
|
|
|
|
|
|
|
|
if (feed->idx_params.types & idx_event.type)
|
|
|
|
dvb_demux_save_idx_event(feed, &idx_event, 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* notify on frame start if needed */
|
|
|
|
idx_event.type = patterns->info[pattern].type;
|
|
|
|
if (feed->idx_params.types & idx_event.type)
|
|
|
|
dvb_demux_save_idx_event(feed, &idx_event, 1);
|
|
|
|
|
|
|
|
feed->prev_frame_valid = 1;
|
|
|
|
feed->prev_frame_type = patterns->info[pattern].type;
|
|
|
|
}
|
|
|
|
|
|
|
|
void dvb_dmx_process_idx_pattern(struct dvb_demux_feed *feed,
|
|
|
|
struct dvb_dmx_video_patterns_results *patterns, int pattern,
|
|
|
|
u64 curr_stc, u64 prev_stc,
|
|
|
|
u64 curr_match_tsp, u64 prev_match_tsp,
|
|
|
|
u64 curr_pusi_tsp, u64 prev_pusi_tsp)
|
|
|
|
{
|
|
|
|
spin_lock(&feed->demux->lock);
|
|
|
|
dvb_dmx_process_pattern_result(feed,
|
|
|
|
patterns, pattern,
|
|
|
|
curr_stc, prev_stc,
|
|
|
|
curr_match_tsp, prev_match_tsp,
|
|
|
|
curr_pusi_tsp, prev_pusi_tsp);
|
|
|
|
spin_unlock(&feed->demux->lock);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_process_idx_pattern);
|
|
|
|
|
|
|
|
static void dvb_dmx_index(struct dvb_demux_feed *feed,
|
|
|
|
const u8 *buf,
|
|
|
|
const u8 timestamp[TIMESTAMP_LEN])
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int p;
|
|
|
|
u64 stc;
|
|
|
|
int found_patterns;
|
|
|
|
int count = payload(buf);
|
|
|
|
u64 min_pattern_tsp_num;
|
|
|
|
struct dvb_demux_feed *tmp_feed;
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
struct dmx_index_event_info idx_event;
|
|
|
|
struct dvb_dmx_video_patterns_results patterns;
|
|
|
|
|
|
|
|
if (feed->demux->convert_ts)
|
|
|
|
feed->demux->convert_ts(feed, timestamp, &stc);
|
|
|
|
else
|
|
|
|
stc = 0;
|
|
|
|
|
|
|
|
idx_event.pid = feed->pid;
|
|
|
|
idx_event.stc = stc;
|
|
|
|
idx_event.match_tsp_num = feed->rec_info->ts_output_count;
|
|
|
|
|
|
|
|
/* PUSI ? */
|
|
|
|
if (buf[1] & 0x40) {
|
|
|
|
feed->curr_pusi_tsp_num = feed->rec_info->ts_output_count;
|
|
|
|
if (feed->idx_params.types & DMX_IDX_PUSI) {
|
|
|
|
idx_event.type = DMX_IDX_PUSI;
|
|
|
|
idx_event.last_pusi_tsp_num =
|
|
|
|
feed->curr_pusi_tsp_num;
|
|
|
|
dvb_demux_save_idx_event(feed, &idx_event, 1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* if we still did not encounter a TS packet with PUSI indication,
|
|
|
|
* we cannot report index entries yet as we need to provide
|
2024-09-09 08:57:42 +00:00
|
|
|
* the TS packet number with PUSI indication preceding the TS
|
2024-09-09 08:52:07 +00:00
|
|
|
* packet pointed by the reported index entry.
|
|
|
|
*/
|
|
|
|
if (feed->curr_pusi_tsp_num == (u64)-1) {
|
|
|
|
dvb_dmx_notify_indexing(feed);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((feed->idx_params.types & DMX_IDX_RAI) && /* index RAI? */
|
|
|
|
(buf[3] & 0x20) && /* adaptation field exists? */
|
|
|
|
(buf[4] > 0) && /* adaptation field len > 0 ? */
|
|
|
|
(buf[5] & 0x40)) { /* RAI is set? */
|
|
|
|
idx_event.type = DMX_IDX_RAI;
|
|
|
|
idx_event.last_pusi_tsp_num =
|
|
|
|
feed->curr_pusi_tsp_num;
|
|
|
|
dvb_demux_save_idx_event(feed, &idx_event, 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* if no pattern search is required, or the TS packet has no payload,
|
|
|
|
* pattern search is not executed.
|
|
|
|
*/
|
|
|
|
if (!feed->pattern_num || !count) {
|
|
|
|
dvb_dmx_notify_indexing(feed);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
p = 188 - count; /* payload start */
|
|
|
|
|
|
|
|
found_patterns =
|
|
|
|
dvb_dmx_video_pattern_search(feed->patterns,
|
|
|
|
feed->pattern_num, &buf[p], count,
|
|
|
|
&feed->prefix_size, &patterns);
|
|
|
|
|
|
|
|
for (i = 0; i < found_patterns; i++)
|
|
|
|
dvb_dmx_process_pattern_result(feed, &patterns, i,
|
|
|
|
stc, feed->prev_stc,
|
|
|
|
feed->rec_info->ts_output_count, feed->prev_tsp_num,
|
|
|
|
feed->curr_pusi_tsp_num, feed->prev_pusi_tsp_num);
|
|
|
|
|
|
|
|
feed->prev_tsp_num = feed->rec_info->ts_output_count;
|
|
|
|
feed->prev_pusi_tsp_num = feed->curr_pusi_tsp_num;
|
|
|
|
feed->prev_stc = stc;
|
|
|
|
feed->last_pattern_tsp_num = feed->rec_info->ts_output_count;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* it is possible to have a TS packet that has a prefix of
|
|
|
|
* a video pattern but the video pattern is not identified yet
|
|
|
|
* until we get the next TS packet of that PID. When we get
|
|
|
|
* the next TS packet of that PID, pattern-search would
|
|
|
|
* detect that we have a new index entry that starts in the
|
|
|
|
* previous TS packet.
|
|
|
|
* In order to notify the user on index entries with match_tsp_num
|
|
|
|
* in ascending order, index events with match_tsp_num up to
|
|
|
|
* the last_pattern_tsp_num are notified now to the user,
|
|
|
|
* the rest can't be notified now as we might hit the above
|
|
|
|
* scenario and cause the events not to be notified with
|
|
|
|
* ascending order of match_tsp_num.
|
|
|
|
*/
|
|
|
|
if (feed->rec_info->idx_info.pattern_search_feeds_num == 1) {
|
|
|
|
/*
|
|
|
|
* optimization for case we have only one PID
|
|
|
|
* with video pattern search, in this case
|
|
|
|
* min_pattern_tsp_num is simply updated to the new
|
|
|
|
* TS packet number of the PID with pattern search.
|
|
|
|
*/
|
|
|
|
feed->rec_info->idx_info.min_pattern_tsp_num =
|
|
|
|
feed->last_pattern_tsp_num;
|
|
|
|
dvb_dmx_notify_indexing(feed);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* if we have more than one PID with pattern search,
|
|
|
|
* min_pattern_tsp_num needs to be updated now based on
|
|
|
|
* last_pattern_tsp_num of all PIDs with pattern search.
|
|
|
|
*/
|
|
|
|
min_pattern_tsp_num = (u64)-1;
|
|
|
|
i = feed->rec_info->idx_info.pattern_search_feeds_num;
|
|
|
|
list_for_each_entry(tmp_feed, &demux->feed_list, list_head) {
|
|
|
|
if ((tmp_feed->state != DMX_STATE_GO) ||
|
|
|
|
(tmp_feed->type != DMX_TYPE_TS) ||
|
|
|
|
(tmp_feed->feed.ts.buffer.ringbuff !=
|
|
|
|
feed->feed.ts.buffer.ringbuff))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if ((tmp_feed->last_pattern_tsp_num != (u64)-1) &&
|
|
|
|
((min_pattern_tsp_num == (u64)-1) ||
|
|
|
|
(tmp_feed->last_pattern_tsp_num <
|
|
|
|
min_pattern_tsp_num)))
|
|
|
|
min_pattern_tsp_num = tmp_feed->last_pattern_tsp_num;
|
|
|
|
|
|
|
|
if (tmp_feed->pattern_num) {
|
|
|
|
i--;
|
|
|
|
if (i == 0)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
feed->rec_info->idx_info.min_pattern_tsp_num = min_pattern_tsp_num;
|
|
|
|
|
|
|
|
/* notify all index entries up to min_pattern_tsp_num */
|
|
|
|
dvb_dmx_notify_indexing(feed);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void dvb_dmx_swfilter_output_packet(
|
|
|
|
struct dvb_demux_feed *feed,
|
|
|
|
const u8 *buf,
|
|
|
|
const u8 timestamp[TIMESTAMP_LEN])
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* if we output 192 packet with timestamp at head of packet,
|
|
|
|
* output the timestamp now before the 188 TS packet
|
|
|
|
*/
|
|
|
|
if (feed->tsp_out_format == DMX_TSP_FORMAT_192_HEAD)
|
|
|
|
feed->cb.ts(timestamp, TIMESTAMP_LEN, NULL,
|
|
|
|
0, &feed->feed.ts, DMX_OK);
|
|
|
|
|
|
|
|
feed->cb.ts(buf, 188, NULL, 0, &feed->feed.ts, DMX_OK);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* if we output 192 packet with timestamp at tail of packet,
|
|
|
|
* output the timestamp now after the 188 TS packet
|
|
|
|
*/
|
|
|
|
if (feed->tsp_out_format == DMX_TSP_FORMAT_192_TAIL)
|
|
|
|
feed->cb.ts(timestamp, TIMESTAMP_LEN, NULL,
|
|
|
|
0, &feed->feed.ts, DMX_OK);
|
|
|
|
|
|
|
|
if (feed->idx_params.enable)
|
|
|
|
dvb_dmx_index(feed, buf, timestamp);
|
|
|
|
|
|
|
|
feed->rec_info->ts_output_count++;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void dvb_dmx_configure_decoder_fullness(
|
|
|
|
struct dvb_demux *demux,
|
|
|
|
int initialize)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed;
|
|
|
|
int j;
|
|
|
|
|
|
|
|
for (j = 0; j < demux->feednum; j++) {
|
|
|
|
feed = &demux->feed[j];
|
|
|
|
|
|
|
|
if ((feed->state != DMX_STATE_GO) ||
|
|
|
|
(feed->type != DMX_TYPE_TS) ||
|
|
|
|
!(feed->ts_type & TS_DECODER))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (initialize) {
|
|
|
|
if (demux->decoder_fullness_init)
|
|
|
|
demux->decoder_fullness_init(feed);
|
|
|
|
} else {
|
|
|
|
if (demux->decoder_fullness_abort)
|
|
|
|
demux->decoder_fullness_abort(feed);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int dvb_dmx_swfilter_buffer_check(
|
|
|
|
struct dvb_demux *demux,
|
|
|
|
u16 pid)
|
|
|
|
{
|
|
|
|
int desired_space;
|
|
|
|
int ret;
|
|
|
|
struct dmx_ts_feed *ts;
|
|
|
|
struct dvb_demux_filter *f;
|
|
|
|
struct dvb_demux_feed *feed;
|
|
|
|
int was_locked;
|
|
|
|
int i, j;
|
|
|
|
|
|
|
|
if (likely(spin_is_locked(&demux->lock)))
|
|
|
|
was_locked = 1;
|
|
|
|
else
|
|
|
|
was_locked = 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Check that there's enough free space for data output.
|
|
|
|
* If there no space, wait for it (block).
|
|
|
|
* Since this function is called while spinlock
|
2024-09-09 08:57:42 +00:00
|
|
|
* is acquired, the lock should be released first.
|
|
|
|
* Once we get control back, lock is acquired back
|
2024-09-09 08:52:07 +00:00
|
|
|
* and checks that the filter is still valid.
|
|
|
|
*/
|
|
|
|
for (j = 0; j < demux->feednum; j++) {
|
|
|
|
feed = &demux->feed[j];
|
|
|
|
|
|
|
|
if (demux->sw_filter_abort)
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
if ((feed->state != DMX_STATE_GO) ||
|
|
|
|
((feed->pid != pid) && (feed->pid != 0x2000)))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (feed->secure_mode.is_secured &&
|
|
|
|
!dvb_dmx_is_rec_feed(feed))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (feed->type == DMX_TYPE_TS) {
|
|
|
|
desired_space = 192; /* upper bound */
|
|
|
|
ts = &feed->feed.ts;
|
|
|
|
|
|
|
|
if (feed->ts_type & TS_PACKET) {
|
|
|
|
if (likely(was_locked))
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
ret = demux->buffer_ctrl.ts(ts,
|
|
|
|
desired_space, 1);
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
if (likely(was_locked))
|
|
|
|
spin_lock(&demux->lock);
|
|
|
|
|
|
|
|
if (ret < 0)
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (demux->sw_filter_abort)
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
if (!ts->is_filtering)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if ((feed->ts_type & TS_DECODER) &&
|
|
|
|
(demux->decoder_fullness_wait)) {
|
|
|
|
if (likely(was_locked))
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
|
|
|
|
ret = demux->decoder_fullness_wait(
|
|
|
|
feed,
|
|
|
|
desired_space);
|
|
|
|
|
|
|
|
if (likely(was_locked))
|
|
|
|
spin_lock(&demux->lock);
|
|
|
|
|
|
|
|
if (ret < 0)
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* else - section case */
|
|
|
|
desired_space = feed->feed.sec.tsfeedp + 188; /* upper bound */
|
|
|
|
for (i = 0; i < demux->filternum; i++) {
|
|
|
|
if (demux->sw_filter_abort)
|
|
|
|
return -EPERM;
|
|
|
|
|
|
|
|
if (!feed->feed.sec.is_filtering)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
f = &demux->filter[i];
|
|
|
|
if (f->feed != feed)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (likely(was_locked))
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
ret = demux->buffer_ctrl.sec(&f->filter,
|
|
|
|
desired_space, 1);
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
if (likely(was_locked))
|
|
|
|
spin_lock(&demux->lock);
|
|
|
|
|
|
|
|
if (ret < 0)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void dvb_dmx_swfilter_packet_type(struct dvb_demux_feed *feed,
|
|
|
|
const u8 *buf, const u8 timestamp[TIMESTAMP_LEN])
|
|
|
|
{
|
|
|
|
u16 pid = ts_pid(buf);
|
|
|
|
u8 scrambling_bits = ts_scrambling_ctrl(buf);
|
|
|
|
struct dmx_data_ready dmx_data_ready;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Notify on scrambling status change only when we move
|
|
|
|
* from clear (0) to non-clear and vise-versa
|
|
|
|
*/
|
|
|
|
if ((scrambling_bits && !feed->scrambling_bits) ||
|
|
|
|
(!scrambling_bits && feed->scrambling_bits)) {
|
|
|
|
dmx_data_ready.status = DMX_OK_SCRAMBLING_STATUS;
|
|
|
|
dmx_data_ready.data_length = 0;
|
|
|
|
dmx_data_ready.scrambling_bits.pid = pid;
|
|
|
|
dmx_data_ready.scrambling_bits.old_value =
|
|
|
|
feed->scrambling_bits;
|
|
|
|
dmx_data_ready.scrambling_bits.new_value = scrambling_bits;
|
|
|
|
|
|
|
|
if (feed->type == DMX_TYPE_SEC)
|
|
|
|
dvb_dmx_notify_section_event(feed, &dmx_data_ready, 0);
|
2024-09-09 08:57:42 +00:00
|
|
|
else if (feed->feed.ts.is_filtering)
|
2024-09-09 08:52:07 +00:00
|
|
|
feed->data_ready_cb.ts(&feed->feed.ts, &dmx_data_ready);
|
|
|
|
}
|
|
|
|
|
|
|
|
feed->scrambling_bits = scrambling_bits;
|
|
|
|
|
|
|
|
switch (feed->type) {
|
|
|
|
case DMX_TYPE_TS:
|
|
|
|
if (!feed->feed.ts.is_filtering)
|
|
|
|
break;
|
|
|
|
if (feed->ts_type & TS_PACKET) {
|
|
|
|
if (feed->ts_type & TS_PAYLOAD_ONLY) {
|
|
|
|
if (!feed->secure_mode.is_secured)
|
|
|
|
dvb_dmx_swfilter_payload(feed, buf);
|
|
|
|
} else {
|
|
|
|
dvb_dmx_swfilter_output_packet(feed,
|
|
|
|
buf, timestamp);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ((feed->ts_type & TS_DECODER) &&
|
|
|
|
!feed->secure_mode.is_secured)
|
|
|
|
if (feed->demux->write_to_decoder)
|
|
|
|
feed->demux->write_to_decoder(feed, buf, 188);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case DMX_TYPE_SEC:
|
|
|
|
if (!feed->feed.sec.is_filtering ||
|
|
|
|
feed->secure_mode.is_secured)
|
|
|
|
break;
|
2024-09-09 08:57:42 +00:00
|
|
|
if (dvb_dmx_swfilter_section_one_packet(feed, buf) < 0)
|
2024-09-09 08:52:07 +00:00
|
|
|
feed->feed.sec.seclen = feed->feed.sec.secbufp = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#define DVR_FEED(f) \
|
|
|
|
(((f)->type == DMX_TYPE_TS) && \
|
|
|
|
((f)->feed.ts.is_filtering) && \
|
|
|
|
(((f)->ts_type & (TS_PACKET | TS_DEMUX)) == TS_PACKET))
|
|
|
|
|
|
|
|
static void dvb_dmx_swfilter_one_packet(struct dvb_demux *demux, const u8 *buf,
|
|
|
|
const u8 timestamp[TIMESTAMP_LEN])
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed;
|
|
|
|
u16 pid = ts_pid(buf);
|
|
|
|
int dvr_done = 0;
|
|
|
|
|
|
|
|
if (dvb_demux_speedcheck) {
|
|
|
|
struct timespec cur_time, delta_time;
|
|
|
|
u64 speed_bytes, speed_timedelta;
|
|
|
|
|
|
|
|
demux->speed_pkts_cnt++;
|
|
|
|
|
|
|
|
/* show speed every SPEED_PKTS_INTERVAL packets */
|
|
|
|
if (!(demux->speed_pkts_cnt % SPEED_PKTS_INTERVAL)) {
|
|
|
|
cur_time = current_kernel_time();
|
|
|
|
|
|
|
|
if (demux->speed_last_time.tv_sec != 0 &&
|
|
|
|
demux->speed_last_time.tv_nsec != 0) {
|
|
|
|
delta_time = timespec_sub(cur_time,
|
|
|
|
demux->speed_last_time);
|
|
|
|
speed_bytes = (u64)demux->speed_pkts_cnt
|
|
|
|
* 188 * 8;
|
|
|
|
/* convert to 1024 basis */
|
|
|
|
speed_bytes = 1000 * div64_u64(speed_bytes,
|
|
|
|
1024);
|
|
|
|
speed_timedelta =
|
|
|
|
(u64)timespec_to_ns(&delta_time);
|
|
|
|
speed_timedelta = div64_u64(speed_timedelta,
|
|
|
|
1000000); /* nsec -> usec */
|
2024-09-09 08:57:42 +00:00
|
|
|
pr_info("TS speed %llu Kbits/sec\n",
|
|
|
|
div64_u64(speed_bytes,
|
|
|
|
speed_timedelta));
|
|
|
|
}
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
demux->speed_last_time = cur_time;
|
|
|
|
demux->speed_pkts_cnt = 0;
|
2024-09-09 08:57:42 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (buf[1] & 0x80) {
|
|
|
|
dprintk_tscheck("TEI detected. PID=0x%x data1=0x%x\n", pid,
|
|
|
|
buf[1]);
|
|
|
|
/* data in this packet can't be trusted - drop it unless
|
|
|
|
* module option dvb_demux_feed_err_pkts is set */
|
|
|
|
if (!dvb_demux_feed_err_pkts)
|
|
|
|
return;
|
|
|
|
} else /* if TEI bit is set, pid may be wrong- skip pkt counter */
|
|
|
|
if (demux->cnt_storage && dvb_demux_tscheck) {
|
|
|
|
/* check pkt counter */
|
|
|
|
if (pid < MAX_PID) {
|
|
|
|
if (buf[3] & 0x10)
|
|
|
|
demux->cnt_storage[pid] =
|
|
|
|
(demux->cnt_storage[pid] + 1) &
|
|
|
|
0xf;
|
|
|
|
|
|
|
|
if ((buf[3] & 0xf) != demux->cnt_storage[pid]) {
|
|
|
|
dprintk_tscheck(
|
|
|
|
"TS packet counter mismatch. PID=0x%x expected 0x%x got 0x%x\n",
|
2024-09-09 08:52:07 +00:00
|
|
|
pid, demux->cnt_storage[pid],
|
|
|
|
buf[3] & 0xf);
|
2024-09-09 08:57:42 +00:00
|
|
|
demux->cnt_storage[pid] = buf[3] & 0xf;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* end check */
|
|
|
|
}
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
if (demux->playback_mode == DMX_PB_MODE_PULL)
|
|
|
|
if (dvb_dmx_swfilter_buffer_check(demux, pid) < 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
list_for_each_entry(feed, &demux->feed_list, list_head) {
|
|
|
|
if ((feed->pid != pid) && (feed->pid != 0x2000))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/* copy each packet only once to the dvr device, even
|
|
|
|
* if a PID is in multiple filters (e.g. video + PCR) */
|
|
|
|
if ((DVR_FEED(feed)) && (dvr_done++))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (feed->pid == pid)
|
|
|
|
dvb_dmx_swfilter_packet_type(feed, buf, timestamp);
|
|
|
|
else if ((feed->pid == 0x2000) &&
|
|
|
|
(feed->feed.ts.is_filtering))
|
|
|
|
dvb_dmx_swfilter_output_packet(feed, buf, timestamp);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf,
|
|
|
|
const u8 timestamp[TIMESTAMP_LEN])
|
|
|
|
{
|
|
|
|
spin_lock(&demux->lock);
|
|
|
|
dvb_dmx_swfilter_one_packet(demux, buf, timestamp);
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_swfilter_packet);
|
|
|
|
|
|
|
|
void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf,
|
|
|
|
size_t count)
|
|
|
|
{
|
|
|
|
struct timespec pre_time;
|
|
|
|
u8 timestamp[TIMESTAMP_LEN] = {0};
|
|
|
|
|
|
|
|
if (dvb_demux_performancecheck)
|
|
|
|
pre_time = current_kernel_time();
|
|
|
|
|
|
|
|
spin_lock(&demux->lock);
|
|
|
|
|
|
|
|
demux->sw_filter_abort = 0;
|
|
|
|
dvb_dmx_configure_decoder_fullness(demux, 1);
|
|
|
|
|
|
|
|
while (count--) {
|
|
|
|
if (buf[0] == 0x47)
|
|
|
|
dvb_dmx_swfilter_one_packet(demux, buf, timestamp);
|
|
|
|
buf += 188;
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
|
|
|
|
if (dvb_demux_performancecheck)
|
|
|
|
demux->total_process_time += dvb_dmx_calc_time_delta(pre_time);
|
|
|
|
}
|
|
|
|
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_swfilter_packets);
|
|
|
|
|
|
|
|
static inline int find_next_packet(const u8 *buf, int pos, size_t count,
|
|
|
|
const int pktsize, const int leadingbytes)
|
|
|
|
{
|
|
|
|
int start = pos, lost;
|
|
|
|
|
|
|
|
while (pos < count) {
|
|
|
|
if ((buf[pos] == 0x47 && !leadingbytes) ||
|
|
|
|
(pktsize == 204 && buf[pos] == 0xB8) ||
|
|
|
|
(pktsize == 192 && leadingbytes &&
|
|
|
|
(pos+leadingbytes < count) &&
|
|
|
|
buf[pos+leadingbytes] == 0x47))
|
|
|
|
break;
|
|
|
|
pos++;
|
|
|
|
}
|
|
|
|
|
|
|
|
lost = pos - start;
|
|
|
|
if (lost) {
|
|
|
|
/* This garbage is part of a valid packet? */
|
|
|
|
int backtrack = pos - pktsize;
|
2024-09-09 08:57:42 +00:00
|
|
|
|
2024-09-09 08:52:07 +00:00
|
|
|
if (backtrack >= 0 && (buf[backtrack] == 0x47 ||
|
|
|
|
(pktsize == 204 && buf[backtrack] == 0xB8) ||
|
|
|
|
(pktsize == 192 &&
|
|
|
|
buf[backtrack+leadingbytes] == 0x47)))
|
|
|
|
return backtrack;
|
|
|
|
}
|
|
|
|
|
|
|
|
return pos;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Filter all pktsize= 188 or 204 sized packets and skip garbage. */
|
|
|
|
static inline void _dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf,
|
|
|
|
size_t count, const int pktsize, const int leadingbytes)
|
|
|
|
{
|
|
|
|
int p = 0, i, j;
|
|
|
|
const u8 *q;
|
|
|
|
struct timespec pre_time;
|
|
|
|
u8 timestamp[TIMESTAMP_LEN];
|
|
|
|
|
|
|
|
if (dvb_demux_performancecheck)
|
|
|
|
pre_time = current_kernel_time();
|
|
|
|
|
|
|
|
spin_lock(&demux->lock);
|
|
|
|
|
|
|
|
demux->sw_filter_abort = 0;
|
|
|
|
dvb_dmx_configure_decoder_fullness(demux, 1);
|
|
|
|
|
|
|
|
if (demux->tsbufp) { /* tsbuf[0] is now 0x47. */
|
|
|
|
i = demux->tsbufp;
|
|
|
|
j = pktsize - i;
|
|
|
|
if (count < j) {
|
|
|
|
memcpy(&demux->tsbuf[i], buf, count);
|
|
|
|
demux->tsbufp += count;
|
|
|
|
goto bailout;
|
|
|
|
}
|
|
|
|
memcpy(&demux->tsbuf[i], buf, j);
|
|
|
|
|
|
|
|
if (pktsize == 192) {
|
|
|
|
if (leadingbytes)
|
|
|
|
memcpy(timestamp, &demux->tsbuf[p],
|
|
|
|
TIMESTAMP_LEN);
|
|
|
|
else
|
|
|
|
memcpy(timestamp, &demux->tsbuf[188],
|
|
|
|
TIMESTAMP_LEN);
|
|
|
|
} else {
|
|
|
|
memset(timestamp, 0, TIMESTAMP_LEN);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pktsize == 192 &&
|
|
|
|
leadingbytes &&
|
|
|
|
demux->tsbuf[leadingbytes] == 0x47) /* double check */
|
|
|
|
dvb_dmx_swfilter_one_packet(demux,
|
|
|
|
demux->tsbuf + TIMESTAMP_LEN, timestamp);
|
|
|
|
else if (demux->tsbuf[0] == 0x47) /* double check */
|
|
|
|
dvb_dmx_swfilter_one_packet(demux,
|
|
|
|
demux->tsbuf, timestamp);
|
|
|
|
demux->tsbufp = 0;
|
|
|
|
p += j;
|
|
|
|
}
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
p = find_next_packet(buf, p, count, pktsize, leadingbytes);
|
|
|
|
|
|
|
|
if (demux->sw_filter_abort)
|
|
|
|
goto bailout;
|
|
|
|
|
|
|
|
if (p >= count)
|
|
|
|
break;
|
|
|
|
if (count - p < pktsize)
|
|
|
|
break;
|
|
|
|
|
|
|
|
q = &buf[p];
|
|
|
|
|
|
|
|
if (pktsize == 204 && (*q == 0xB8)) {
|
|
|
|
memcpy(demux->tsbuf, q, 188);
|
|
|
|
demux->tsbuf[0] = 0x47;
|
|
|
|
q = demux->tsbuf;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pktsize == 192) {
|
|
|
|
if (leadingbytes) {
|
|
|
|
q = &buf[p+leadingbytes];
|
|
|
|
memcpy(timestamp, &buf[p], TIMESTAMP_LEN);
|
|
|
|
} else {
|
|
|
|
memcpy(timestamp, &buf[p+188], TIMESTAMP_LEN);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
memset(timestamp, 0, TIMESTAMP_LEN);
|
|
|
|
}
|
|
|
|
|
|
|
|
dvb_dmx_swfilter_one_packet(demux, q, timestamp);
|
|
|
|
p += pktsize;
|
|
|
|
}
|
|
|
|
|
|
|
|
i = count - p;
|
|
|
|
if (i) {
|
|
|
|
memcpy(demux->tsbuf, &buf[p], i);
|
|
|
|
demux->tsbufp = i;
|
|
|
|
if (pktsize == 204 && demux->tsbuf[0] == 0xB8)
|
|
|
|
demux->tsbuf[0] = 0x47;
|
|
|
|
}
|
|
|
|
|
|
|
|
bailout:
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
|
|
|
|
if (dvb_demux_performancecheck)
|
|
|
|
demux->total_process_time += dvb_dmx_calc_time_delta(pre_time);
|
|
|
|
}
|
|
|
|
|
|
|
|
void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count)
|
|
|
|
{
|
|
|
|
_dvb_dmx_swfilter(demux, buf, count, 188, 0);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_swfilter);
|
|
|
|
|
|
|
|
void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf, size_t count)
|
|
|
|
{
|
|
|
|
_dvb_dmx_swfilter(demux, buf, count, 204, 0);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_swfilter_204);
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
void dvb_dmx_swfilter_raw(struct dvb_demux *demux, const u8 *buf, size_t count)
|
|
|
|
{
|
|
|
|
spin_lock(&demux->lock);
|
|
|
|
|
|
|
|
demux->feed->cb.ts(buf, count, NULL, 0, &demux->feed->feed.ts, DMX_OK);
|
|
|
|
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_swfilter_raw);
|
|
|
|
|
2024-09-09 08:52:07 +00:00
|
|
|
void dvb_dmx_swfilter_format(
|
|
|
|
struct dvb_demux *demux,
|
|
|
|
const u8 *buf,
|
|
|
|
size_t count,
|
|
|
|
enum dmx_tsp_format_t tsp_format)
|
|
|
|
{
|
|
|
|
switch (tsp_format) {
|
|
|
|
case DMX_TSP_FORMAT_188:
|
|
|
|
_dvb_dmx_swfilter(demux, buf, count, 188, 0);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case DMX_TSP_FORMAT_192_TAIL:
|
|
|
|
_dvb_dmx_swfilter(demux, buf, count, 192, 0);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case DMX_TSP_FORMAT_192_HEAD:
|
|
|
|
_dvb_dmx_swfilter(demux, buf, count, 192, TIMESTAMP_LEN);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case DMX_TSP_FORMAT_204:
|
|
|
|
_dvb_dmx_swfilter(demux, buf, count, 204, 0);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2024-09-09 08:57:42 +00:00
|
|
|
pr_err("%s: invalid TS packet format (format=%d)\n", __func__,
|
|
|
|
tsp_format);
|
2024-09-09 08:52:07 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_swfilter_format);
|
|
|
|
|
|
|
|
static struct dvb_demux_filter *dvb_dmx_filter_alloc(struct dvb_demux *demux)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < demux->filternum; i++)
|
|
|
|
if (demux->filter[i].state == DMX_STATE_FREE)
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (i == demux->filternum)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
demux->filter[i].state = DMX_STATE_ALLOCATED;
|
|
|
|
|
|
|
|
return &demux->filter[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct dvb_demux_feed *dvb_dmx_feed_alloc(struct dvb_demux *demux)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < demux->feednum; i++)
|
|
|
|
if (demux->feed[i].state == DMX_STATE_FREE)
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (i == demux->feednum)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
demux->feed[i].state = DMX_STATE_ALLOCATED;
|
|
|
|
|
|
|
|
return &demux->feed[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
const struct dvb_dmx_video_patterns *dvb_dmx_get_pattern(u64 dmx_idx_pattern)
|
|
|
|
{
|
|
|
|
switch (dmx_idx_pattern) {
|
|
|
|
case DMX_IDX_MPEG_SEQ_HEADER:
|
|
|
|
return &mpeg2_seq_hdr;
|
|
|
|
|
|
|
|
case DMX_IDX_MPEG_GOP:
|
|
|
|
return &mpeg2_gop;
|
|
|
|
|
|
|
|
case DMX_IDX_MPEG_I_FRAME_START:
|
|
|
|
return &mpeg2_iframe;
|
|
|
|
|
|
|
|
case DMX_IDX_MPEG_P_FRAME_START:
|
|
|
|
return &mpeg2_pframe;
|
|
|
|
|
|
|
|
case DMX_IDX_MPEG_B_FRAME_START:
|
|
|
|
return &mpeg2_bframe;
|
|
|
|
|
|
|
|
case DMX_IDX_H264_SPS:
|
|
|
|
return &h264_sps;
|
|
|
|
|
|
|
|
case DMX_IDX_H264_PPS:
|
|
|
|
return &h264_pps;
|
|
|
|
|
|
|
|
case DMX_IDX_H264_IDR_START:
|
|
|
|
return &h264_idr;
|
|
|
|
|
|
|
|
case DMX_IDX_H264_NON_IDR_START:
|
|
|
|
return &h264_non_idr;
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
case DMX_IDX_H264_ACCESS_UNIT_DEL:
|
|
|
|
return &h264_non_access_unit_del;
|
|
|
|
|
|
|
|
case DMX_IDX_H264_SEI:
|
|
|
|
return &h264_non_sei;
|
|
|
|
|
2024-09-09 08:52:07 +00:00
|
|
|
case DMX_IDX_VC1_SEQ_HEADER:
|
|
|
|
return &vc1_seq_hdr;
|
|
|
|
|
|
|
|
case DMX_IDX_VC1_ENTRY_POINT:
|
|
|
|
return &vc1_entry_point;
|
|
|
|
|
|
|
|
case DMX_IDX_VC1_FRAME_START:
|
|
|
|
return &vc1_frame;
|
|
|
|
|
|
|
|
default:
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_get_pattern);
|
|
|
|
|
|
|
|
static void dvb_dmx_init_idx_state(struct dvb_demux_feed *feed)
|
|
|
|
{
|
|
|
|
feed->prev_tsp_num = (u64)-1;
|
|
|
|
feed->curr_pusi_tsp_num = (u64)-1;
|
|
|
|
feed->prev_pusi_tsp_num = (u64)-1;
|
|
|
|
feed->prev_frame_valid = 0;
|
|
|
|
feed->first_frame_in_seq = 0;
|
|
|
|
feed->first_frame_in_seq_notified = 0;
|
|
|
|
feed->last_pattern_tsp_num = (u64)-1;
|
|
|
|
feed->pattern_num = 0;
|
|
|
|
memset(&feed->prefix_size, 0,
|
|
|
|
sizeof(struct dvb_dmx_video_prefix_size_masks));
|
|
|
|
|
|
|
|
if (feed->idx_params.types &
|
|
|
|
(DMX_IDX_MPEG_SEQ_HEADER |
|
|
|
|
DMX_IDX_MPEG_FIRST_SEQ_FRAME_START |
|
|
|
|
DMX_IDX_MPEG_FIRST_SEQ_FRAME_END)) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_MPEG_SEQ_HEADER);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types & DMX_IDX_MPEG_GOP)) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_MPEG_GOP);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* MPEG2 I-frame */
|
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types &
|
|
|
|
(DMX_IDX_MPEG_I_FRAME_START | DMX_IDX_MPEG_I_FRAME_END |
|
|
|
|
DMX_IDX_MPEG_P_FRAME_END | DMX_IDX_MPEG_B_FRAME_END |
|
|
|
|
DMX_IDX_MPEG_FIRST_SEQ_FRAME_START |
|
|
|
|
DMX_IDX_MPEG_FIRST_SEQ_FRAME_END))) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_MPEG_I_FRAME_START);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* MPEG2 P-frame */
|
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types &
|
|
|
|
(DMX_IDX_MPEG_P_FRAME_START | DMX_IDX_MPEG_P_FRAME_END |
|
|
|
|
DMX_IDX_MPEG_I_FRAME_END | DMX_IDX_MPEG_B_FRAME_END |
|
|
|
|
DMX_IDX_MPEG_FIRST_SEQ_FRAME_START |
|
|
|
|
DMX_IDX_MPEG_FIRST_SEQ_FRAME_END))) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_MPEG_P_FRAME_START);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* MPEG2 B-frame */
|
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types &
|
|
|
|
(DMX_IDX_MPEG_B_FRAME_START | DMX_IDX_MPEG_B_FRAME_END |
|
|
|
|
DMX_IDX_MPEG_I_FRAME_END | DMX_IDX_MPEG_P_FRAME_END |
|
|
|
|
DMX_IDX_MPEG_FIRST_SEQ_FRAME_START |
|
|
|
|
DMX_IDX_MPEG_FIRST_SEQ_FRAME_END))) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_MPEG_B_FRAME_START);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types &
|
|
|
|
(DMX_IDX_H264_SPS |
|
|
|
|
DMX_IDX_H264_FIRST_SPS_FRAME_START |
|
|
|
|
DMX_IDX_H264_FIRST_SPS_FRAME_END))) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_H264_SPS);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types & DMX_IDX_H264_PPS)) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_H264_PPS);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* H264 IDR */
|
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types &
|
|
|
|
(DMX_IDX_H264_IDR_START | DMX_IDX_H264_IDR_END |
|
|
|
|
DMX_IDX_H264_NON_IDR_END |
|
2024-09-09 08:57:42 +00:00
|
|
|
DMX_IDX_H264_FIRST_SPS_FRAME_START |
|
2024-09-09 08:52:07 +00:00
|
|
|
DMX_IDX_H264_FIRST_SPS_FRAME_END))) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_H264_IDR_START);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* H264 non-IDR */
|
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types &
|
|
|
|
(DMX_IDX_H264_NON_IDR_START | DMX_IDX_H264_NON_IDR_END |
|
|
|
|
DMX_IDX_H264_IDR_END |
|
2024-09-09 08:57:42 +00:00
|
|
|
DMX_IDX_H264_FIRST_SPS_FRAME_START |
|
2024-09-09 08:52:07 +00:00
|
|
|
DMX_IDX_H264_FIRST_SPS_FRAME_END))) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_H264_NON_IDR_START);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types & DMX_IDX_H264_ACCESS_UNIT_DEL)) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_H264_ACCESS_UNIT_DEL);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types & DMX_IDX_H264_SEI)) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_H264_SEI);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:52:07 +00:00
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types &
|
|
|
|
(DMX_IDX_VC1_SEQ_HEADER |
|
|
|
|
DMX_IDX_VC1_FIRST_SEQ_FRAME_START |
|
|
|
|
DMX_IDX_VC1_FIRST_SEQ_FRAME_END))) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_VC1_SEQ_HEADER);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types & DMX_IDX_VC1_ENTRY_POINT)) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_VC1_ENTRY_POINT);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* VC1 frame */
|
|
|
|
if ((feed->pattern_num < DVB_DMX_MAX_SEARCH_PATTERN_NUM) &&
|
|
|
|
(feed->idx_params.types &
|
|
|
|
(DMX_IDX_VC1_FRAME_START | DMX_IDX_VC1_FRAME_END |
|
|
|
|
DMX_IDX_VC1_FIRST_SEQ_FRAME_START |
|
|
|
|
DMX_IDX_VC1_FIRST_SEQ_FRAME_END))) {
|
|
|
|
feed->patterns[feed->pattern_num] =
|
|
|
|
dvb_dmx_get_pattern(DMX_IDX_VC1_FRAME_START);
|
|
|
|
feed->pattern_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (feed->pattern_num)
|
|
|
|
feed->rec_info->idx_info.pattern_search_feeds_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct dvb_demux_rec_info *dvb_dmx_alloc_rec_info(
|
|
|
|
struct dmx_ts_feed *ts_feed)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
struct dvb_demux_rec_info *rec_info;
|
|
|
|
struct dvb_demux_feed *tmp_feed;
|
|
|
|
|
|
|
|
/* check if this feed share recording buffer with other active feeds */
|
|
|
|
list_for_each_entry(tmp_feed, &demux->feed_list, list_head) {
|
|
|
|
if ((tmp_feed->state == DMX_STATE_GO) &&
|
|
|
|
(tmp_feed->type == DMX_TYPE_TS) &&
|
|
|
|
(tmp_feed != feed) &&
|
|
|
|
(tmp_feed->feed.ts.buffer.ringbuff ==
|
|
|
|
ts_feed->buffer.ringbuff)) {
|
|
|
|
/* indexing information is shared between the feeds */
|
|
|
|
tmp_feed->rec_info->ref_count++;
|
|
|
|
return tmp_feed->rec_info;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Need to allocate a new indexing info */
|
|
|
|
for (i = 0; i < demux->feednum; i++)
|
|
|
|
if (!demux->rec_info_pool[i].ref_count)
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (i == demux->feednum)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
rec_info = &demux->rec_info_pool[i];
|
|
|
|
rec_info->ref_count++;
|
|
|
|
INIT_LIST_HEAD(&rec_info->idx_info.free_list);
|
|
|
|
INIT_LIST_HEAD(&rec_info->idx_info.ready_list);
|
|
|
|
|
|
|
|
for (i = 0; i < DMX_IDX_EVENT_QUEUE_SIZE; i++)
|
|
|
|
list_add(&rec_info->idx_info.events[i].next,
|
|
|
|
&rec_info->idx_info.free_list);
|
|
|
|
|
|
|
|
rec_info->ts_output_count = 0;
|
|
|
|
rec_info->idx_info.min_pattern_tsp_num = (u64)-1;
|
|
|
|
rec_info->idx_info.pattern_search_feeds_num = 0;
|
2024-09-09 08:57:42 +00:00
|
|
|
rec_info->idx_info.indexing_feeds_num = 0;
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
return rec_info;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dvb_dmx_free_rec_info(struct dmx_ts_feed *ts_feed)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
|
|
|
|
if (!feed->rec_info || !feed->rec_info->ref_count) {
|
2024-09-09 08:57:42 +00:00
|
|
|
pr_err("%s: invalid idx info state\n", __func__);
|
2024-09-09 08:52:07 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
feed->rec_info->ref_count--;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvb_demux_feed_find(struct dvb_demux_feed *feed)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *entry;
|
|
|
|
|
|
|
|
list_for_each_entry(entry, &feed->demux->feed_list, list_head)
|
|
|
|
if (entry == feed)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dvb_demux_feed_add(struct dvb_demux_feed *feed)
|
|
|
|
{
|
|
|
|
spin_lock_irq(&feed->demux->lock);
|
|
|
|
if (dvb_demux_feed_find(feed)) {
|
2024-09-09 08:57:42 +00:00
|
|
|
pr_err("%s: feed already in list (type=%x state=%x pid=%x)\n",
|
2024-09-09 08:52:07 +00:00
|
|
|
__func__, feed->type, feed->state, feed->pid);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
list_add(&feed->list_head, &feed->demux->feed_list);
|
|
|
|
out:
|
|
|
|
spin_unlock_irq(&feed->demux->lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dvb_demux_feed_del(struct dvb_demux_feed *feed)
|
|
|
|
{
|
|
|
|
spin_lock_irq(&feed->demux->lock);
|
|
|
|
if (!(dvb_demux_feed_find(feed))) {
|
2024-09-09 08:57:42 +00:00
|
|
|
pr_err("%s: feed not in list (type=%x state=%x pid=%x)\n",
|
2024-09-09 08:52:07 +00:00
|
|
|
__func__, feed->type, feed->state, feed->pid);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
list_del(&feed->list_head);
|
|
|
|
out:
|
|
|
|
spin_unlock_irq(&feed->demux->lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_ts_feed_set(struct dmx_ts_feed *ts_feed, u16 pid, int ts_type,
|
|
|
|
enum dmx_ts_pes pes_type,
|
|
|
|
size_t circular_buffer_size, struct timespec timeout)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
|
|
|
|
if (pid > DMX_MAX_PID)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (mutex_lock_interruptible(&demux->mutex))
|
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
if (ts_type & TS_DECODER) {
|
2024-09-09 08:57:42 +00:00
|
|
|
if (pes_type >= DMX_PES_OTHER) {
|
2024-09-09 08:52:07 +00:00
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (demux->pesfilter[pes_type] &&
|
|
|
|
demux->pesfilter[pes_type] != feed) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
demux->pesfilter[pes_type] = feed;
|
|
|
|
demux->pids[pes_type] = pid;
|
|
|
|
}
|
|
|
|
|
|
|
|
dvb_demux_feed_add(feed);
|
|
|
|
|
|
|
|
feed->pid = pid;
|
|
|
|
feed->buffer_size = circular_buffer_size;
|
|
|
|
feed->timeout = timeout;
|
|
|
|
feed->ts_type = ts_type;
|
|
|
|
feed->pes_type = pes_type;
|
|
|
|
|
|
|
|
if (feed->buffer_size) {
|
|
|
|
#ifdef NOBUFS
|
|
|
|
feed->buffer = NULL;
|
|
|
|
#else
|
|
|
|
feed->buffer = vmalloc(feed->buffer_size);
|
|
|
|
if (!feed->buffer) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
feed->state = DMX_STATE_READY;
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_ts_feed_start_filtering(struct dmx_ts_feed *ts_feed)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (mutex_lock_interruptible(&demux->mutex))
|
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
if (feed->state != DMX_STATE_READY || feed->type != DMX_TYPE_TS) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!demux->start_feed) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
feed->first_cc = 1;
|
|
|
|
feed->scrambling_bits = 0;
|
|
|
|
|
|
|
|
if ((feed->ts_type & TS_PACKET) &&
|
|
|
|
!(feed->ts_type & TS_PAYLOAD_ONLY)) {
|
|
|
|
feed->rec_info = dvb_dmx_alloc_rec_info(ts_feed);
|
|
|
|
if (!feed->rec_info) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
2024-09-09 08:57:42 +00:00
|
|
|
if (feed->idx_params.enable) {
|
|
|
|
dvb_dmx_init_idx_state(feed);
|
|
|
|
feed->rec_info->idx_info.indexing_feeds_num++;
|
|
|
|
if (demux->set_indexing)
|
|
|
|
demux->set_indexing(feed);
|
|
|
|
}
|
2024-09-09 08:52:07 +00:00
|
|
|
} else {
|
|
|
|
feed->pattern_num = 0;
|
|
|
|
feed->rec_info = NULL;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
ret = demux->start_feed(feed);
|
|
|
|
if (ret < 0) {
|
|
|
|
if ((feed->ts_type & TS_PACKET) &&
|
|
|
|
!(feed->ts_type & TS_PAYLOAD_ONLY)) {
|
|
|
|
dvb_dmx_free_rec_info(ts_feed);
|
|
|
|
feed->rec_info = NULL;
|
|
|
|
}
|
2024-09-09 08:52:07 +00:00
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_lock_irq(&demux->lock);
|
|
|
|
ts_feed->is_filtering = 1;
|
|
|
|
feed->state = DMX_STATE_GO;
|
|
|
|
spin_unlock_irq(&demux->lock);
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_ts_feed_stop_filtering(struct dmx_ts_feed *ts_feed)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&demux->mutex);
|
|
|
|
|
|
|
|
if (feed->state < DMX_STATE_GO) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!demux->stop_feed) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = demux->stop_feed(feed);
|
|
|
|
|
|
|
|
spin_lock_irq(&demux->lock);
|
|
|
|
ts_feed->is_filtering = 0;
|
|
|
|
feed->state = DMX_STATE_ALLOCATED;
|
|
|
|
spin_unlock_irq(&demux->lock);
|
|
|
|
|
|
|
|
if (feed->rec_info) {
|
|
|
|
if (feed->pattern_num)
|
|
|
|
feed->rec_info->idx_info.pattern_search_feeds_num--;
|
2024-09-09 08:57:42 +00:00
|
|
|
if (feed->idx_params.enable)
|
|
|
|
feed->rec_info->idx_info.indexing_feeds_num--;
|
2024-09-09 08:52:07 +00:00
|
|
|
dvb_dmx_free_rec_info(ts_feed);
|
|
|
|
feed->rec_info = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_ts_feed_decoder_buff_status(struct dmx_ts_feed *ts_feed,
|
|
|
|
struct dmx_buffer_status *dmx_buffer_status)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&demux->mutex);
|
|
|
|
|
|
|
|
if (feed->state < DMX_STATE_GO) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!demux->decoder_buffer_status) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = demux->decoder_buffer_status(feed, dmx_buffer_status);
|
|
|
|
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_ts_feed_reuse_decoder_buffer(struct dmx_ts_feed *ts_feed,
|
|
|
|
int cookie)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&demux->mutex);
|
|
|
|
|
|
|
|
if (feed->state < DMX_STATE_GO) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!demux->reuse_decoder_buffer) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = demux->reuse_decoder_buffer(feed, cookie);
|
|
|
|
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_ts_feed_data_ready_cb(struct dmx_ts_feed *feed,
|
|
|
|
dmx_ts_data_ready_cb callback)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
|
|
|
|
if (dvbdmxfeed->state == DMX_STATE_GO) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
dvbdmxfeed->data_ready_cb.ts = callback;
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_ts_set_secure_mode(struct dmx_ts_feed *feed,
|
|
|
|
struct dmx_secure_mode *secure_mode)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
|
2024-09-09 08:57:42 +00:00
|
|
|
|
|
|
|
if (mutex_lock_interruptible(&dvbdmx->mutex))
|
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
if (dvbdmxfeed->state == DMX_STATE_GO) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
dvbdmxfeed->secure_mode = *secure_mode;
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_ts_set_cipher_ops(struct dmx_ts_feed *feed,
|
|
|
|
struct dmx_cipher_operations *cipher_ops)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
|
2024-09-09 08:52:07 +00:00
|
|
|
int ret = 0;
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
if (mutex_lock_interruptible(&dvbdmx->mutex))
|
|
|
|
return -ERESTARTSYS;
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
if ((dvbdmxfeed->state == DMX_STATE_GO) &&
|
2024-09-09 08:57:42 +00:00
|
|
|
dvbdmx->set_cipher_op)
|
|
|
|
ret = dvbdmx->set_cipher_op(dvbdmxfeed, cipher_ops);
|
|
|
|
|
|
|
|
if (!ret)
|
|
|
|
dvbdmxfeed->cipher_ops = *cipher_ops;
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_ts_set_video_codec(
|
|
|
|
struct dmx_ts_feed *ts_feed,
|
|
|
|
enum dmx_video_codec video_codec)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
|
|
|
|
feed->video_codec = video_codec;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_ts_set_idx_params(struct dmx_ts_feed *ts_feed,
|
|
|
|
struct dmx_indexing_params *idx_params)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dvb_demux *dvbdmx = feed->demux;
|
2024-09-09 08:57:42 +00:00
|
|
|
int idx_enabled;
|
|
|
|
int ret = 0;
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
|
|
|
|
if ((feed->state == DMX_STATE_GO) &&
|
|
|
|
!feed->rec_info) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
2024-09-09 08:57:42 +00:00
|
|
|
|
|
|
|
idx_enabled = feed->idx_params.enable;
|
2024-09-09 08:52:07 +00:00
|
|
|
feed->idx_params = *idx_params;
|
|
|
|
|
|
|
|
if (feed->state == DMX_STATE_GO) {
|
|
|
|
spin_lock_irq(&dvbdmx->lock);
|
|
|
|
if (feed->pattern_num)
|
|
|
|
feed->rec_info->idx_info.pattern_search_feeds_num--;
|
2024-09-09 08:57:42 +00:00
|
|
|
if (idx_enabled && !idx_params->enable)
|
|
|
|
feed->rec_info->idx_info.indexing_feeds_num--;
|
|
|
|
if (!idx_enabled && idx_params->enable)
|
|
|
|
feed->rec_info->idx_info.indexing_feeds_num++;
|
2024-09-09 08:52:07 +00:00
|
|
|
dvb_dmx_init_idx_state(feed);
|
|
|
|
spin_unlock_irq(&dvbdmx->lock);
|
2024-09-09 08:57:42 +00:00
|
|
|
|
|
|
|
if (dvbdmx->set_indexing)
|
|
|
|
ret = dvbdmx->set_indexing(feed);
|
2024-09-09 08:52:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
return ret;
|
2024-09-09 08:52:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_ts_feed_oob_cmd(struct dmx_ts_feed *ts_feed,
|
|
|
|
struct dmx_oob_command *cmd)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dmx_data_ready data;
|
|
|
|
struct dvb_demux *dvbdmx = feed->demux;
|
|
|
|
int ret = 0;
|
|
|
|
int secure_non_rec = feed->secure_mode.is_secured &&
|
|
|
|
!dvb_dmx_is_rec_feed(feed);
|
|
|
|
|
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
|
|
|
|
if (feed->state != DMX_STATE_GO) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Decoder & non-recording secure feeds are handled by plug-in */
|
|
|
|
if ((feed->ts_type & TS_DECODER) || secure_non_rec) {
|
|
|
|
if (feed->demux->oob_command)
|
|
|
|
ret = feed->demux->oob_command(feed, cmd);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(feed->ts_type & (TS_PAYLOAD_ONLY | TS_PACKET)) ||
|
|
|
|
secure_non_rec) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
data.data_length = 0;
|
|
|
|
|
|
|
|
switch (cmd->type) {
|
|
|
|
case DMX_OOB_CMD_EOS:
|
|
|
|
if (feed->ts_type & TS_PAYLOAD_ONLY)
|
|
|
|
dvb_dmx_check_pes_end(feed);
|
|
|
|
|
|
|
|
data.status = DMX_OK_EOS;
|
|
|
|
ret = feed->data_ready_cb.ts(&feed->feed.ts, &data);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case DMX_OOB_CMD_MARKER:
|
|
|
|
data.status = DMX_OK_MARKER;
|
|
|
|
data.marker.id = cmd->params.marker.id;
|
|
|
|
ret = feed->data_ready_cb.ts(&feed->feed.ts, &data);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
ret = -EINVAL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_ts_get_scrambling_bits(struct dmx_ts_feed *ts_feed,
|
|
|
|
u8 *value)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
|
|
|
|
spin_lock(&demux->lock);
|
|
|
|
|
|
|
|
if (!ts_feed->is_filtering) {
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
*value = feed->scrambling_bits;
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_ts_insertion_insert_buffer(struct dmx_ts_feed *ts_feed,
|
|
|
|
char *data, size_t size)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
|
|
|
|
spin_lock(&demux->lock);
|
|
|
|
if (!ts_feed->is_filtering) {
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
feed->cb.ts(data, size, NULL, 0, ts_feed, DMX_OK);
|
|
|
|
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_ts_set_tsp_out_format(
|
|
|
|
struct dmx_ts_feed *ts_feed,
|
|
|
|
enum dmx_tsp_format_t tsp_format)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dvb_demux *dvbdmx = feed->demux;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
|
|
|
|
if (feed->state == DMX_STATE_GO) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
feed->tsp_out_format = tsp_format;
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
/**
|
|
|
|
* dvbdmx_ts_reset_pes_state() - Reset the current PES length and PES counters
|
|
|
|
*
|
|
|
|
* @feed: dvb demux feed object
|
|
|
|
*/
|
|
|
|
void dvbdmx_ts_reset_pes_state(struct dvb_demux_feed *feed)
|
|
|
|
{
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Reset PES state.
|
|
|
|
* PUSI seen indication is kept so we can get partial PES.
|
|
|
|
*/
|
|
|
|
spin_lock_irqsave(&feed->demux->lock, flags);
|
|
|
|
|
|
|
|
feed->peslen = 0;
|
|
|
|
feed->pes_tei_counter = 0;
|
|
|
|
feed->pes_cont_err_counter = 0;
|
|
|
|
feed->pes_ts_packets_num = 0;
|
|
|
|
|
|
|
|
spin_unlock_irqrestore(&feed->demux->lock, flags);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(dvbdmx_ts_reset_pes_state);
|
|
|
|
|
|
|
|
static int dvbdmx_ts_flush_buffer(struct dmx_ts_feed *ts_feed, size_t length)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
if (mutex_lock_interruptible(&demux->mutex))
|
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
dvbdmx_ts_reset_pes_state(feed);
|
|
|
|
|
|
|
|
if ((feed->ts_type & TS_DECODER) && demux->flush_decoder_buffer)
|
|
|
|
/* Call decoder specific flushing if one exists */
|
|
|
|
ret = demux->flush_decoder_buffer(feed, length);
|
|
|
|
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:52:07 +00:00
|
|
|
static int dvbdmx_allocate_ts_feed(struct dmx_demux *dmx,
|
|
|
|
struct dmx_ts_feed **ts_feed,
|
|
|
|
dmx_ts_cb callback)
|
|
|
|
{
|
|
|
|
struct dvb_demux *demux = (struct dvb_demux *)dmx;
|
|
|
|
struct dvb_demux_feed *feed;
|
|
|
|
|
|
|
|
if (mutex_lock_interruptible(&demux->mutex))
|
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
if (!(feed = dvb_dmx_feed_alloc(demux))) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
feed->type = DMX_TYPE_TS;
|
|
|
|
feed->cb.ts = callback;
|
|
|
|
feed->demux = demux;
|
|
|
|
feed->pid = 0xffff;
|
|
|
|
feed->peslen = 0;
|
|
|
|
feed->pes_tei_counter = 0;
|
|
|
|
feed->pes_ts_packets_num = 0;
|
|
|
|
feed->pes_cont_err_counter = 0;
|
|
|
|
feed->secure_mode.is_secured = 0;
|
|
|
|
feed->buffer = NULL;
|
|
|
|
feed->tsp_out_format = DMX_TSP_FORMAT_188;
|
|
|
|
feed->idx_params.enable = 0;
|
|
|
|
|
|
|
|
/* default behaviour - pass first PES data even if it is
|
|
|
|
* partial PES data from previous PES that we didn't receive its header.
|
|
|
|
* Override this to 0 in your start_feed function in order to handle
|
|
|
|
* first PES differently.
|
|
|
|
*/
|
|
|
|
feed->pusi_seen = 1;
|
|
|
|
|
|
|
|
(*ts_feed) = &feed->feed.ts;
|
|
|
|
(*ts_feed)->parent = dmx;
|
|
|
|
(*ts_feed)->priv = NULL;
|
|
|
|
(*ts_feed)->is_filtering = 0;
|
|
|
|
(*ts_feed)->start_filtering = dmx_ts_feed_start_filtering;
|
|
|
|
(*ts_feed)->stop_filtering = dmx_ts_feed_stop_filtering;
|
|
|
|
(*ts_feed)->set = dmx_ts_feed_set;
|
|
|
|
(*ts_feed)->set_video_codec = dmx_ts_set_video_codec;
|
|
|
|
(*ts_feed)->set_idx_params = dmx_ts_set_idx_params;
|
|
|
|
(*ts_feed)->set_tsp_out_format = dmx_ts_set_tsp_out_format;
|
|
|
|
(*ts_feed)->get_decoder_buff_status = dmx_ts_feed_decoder_buff_status;
|
|
|
|
(*ts_feed)->reuse_decoder_buffer = dmx_ts_feed_reuse_decoder_buffer;
|
|
|
|
(*ts_feed)->data_ready_cb = dmx_ts_feed_data_ready_cb;
|
|
|
|
(*ts_feed)->notify_data_read = NULL;
|
|
|
|
(*ts_feed)->set_secure_mode = dmx_ts_set_secure_mode;
|
2024-09-09 08:57:42 +00:00
|
|
|
(*ts_feed)->set_cipher_ops = dmx_ts_set_cipher_ops;
|
2024-09-09 08:52:07 +00:00
|
|
|
(*ts_feed)->oob_command = dvbdmx_ts_feed_oob_cmd;
|
|
|
|
(*ts_feed)->get_scrambling_bits = dvbdmx_ts_get_scrambling_bits;
|
|
|
|
(*ts_feed)->ts_insertion_init = NULL;
|
|
|
|
(*ts_feed)->ts_insertion_terminate = NULL;
|
|
|
|
(*ts_feed)->ts_insertion_insert_buffer =
|
|
|
|
dvbdmx_ts_insertion_insert_buffer;
|
2024-09-09 08:57:42 +00:00
|
|
|
(*ts_feed)->flush_buffer = dvbdmx_ts_flush_buffer;
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
if (!(feed->filter = dvb_dmx_filter_alloc(demux))) {
|
|
|
|
feed->state = DMX_STATE_FREE;
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
feed->filter->type = DMX_TYPE_TS;
|
|
|
|
feed->filter->feed = feed;
|
|
|
|
feed->filter->state = DMX_STATE_READY;
|
|
|
|
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_release_ts_feed(struct dmx_demux *dmx,
|
|
|
|
struct dmx_ts_feed *ts_feed)
|
|
|
|
{
|
|
|
|
struct dvb_demux *demux = (struct dvb_demux *)dmx;
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
|
|
|
|
|
|
|
|
mutex_lock(&demux->mutex);
|
|
|
|
|
|
|
|
if (feed->state == DMX_STATE_FREE) {
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
#ifndef NOBUFS
|
|
|
|
vfree(feed->buffer);
|
|
|
|
feed->buffer = NULL;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
feed->state = DMX_STATE_FREE;
|
|
|
|
feed->filter->state = DMX_STATE_FREE;
|
2024-09-09 08:57:42 +00:00
|
|
|
ts_feed->priv = NULL;
|
2024-09-09 08:52:07 +00:00
|
|
|
dvb_demux_feed_del(feed);
|
|
|
|
|
|
|
|
feed->pid = 0xffff;
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
if (feed->ts_type & TS_DECODER && feed->pes_type < DMX_PES_OTHER)
|
2024-09-09 08:52:07 +00:00
|
|
|
demux->pesfilter[feed->pes_type] = NULL;
|
|
|
|
|
|
|
|
mutex_unlock(&demux->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/******************************************************************************
|
|
|
|
* dmx_section_feed API calls
|
|
|
|
******************************************************************************/
|
|
|
|
|
|
|
|
static int dmx_section_feed_allocate_filter(struct dmx_section_feed *feed,
|
|
|
|
struct dmx_section_filter **filter)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdemux = dvbdmxfeed->demux;
|
|
|
|
struct dvb_demux_filter *dvbdmxfilter;
|
|
|
|
|
|
|
|
if (mutex_lock_interruptible(&dvbdemux->mutex))
|
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
dvbdmxfilter = dvb_dmx_filter_alloc(dvbdemux);
|
|
|
|
if (!dvbdmxfilter) {
|
|
|
|
mutex_unlock(&dvbdemux->mutex);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_lock_irq(&dvbdemux->lock);
|
|
|
|
*filter = &dvbdmxfilter->filter;
|
|
|
|
(*filter)->parent = feed;
|
|
|
|
(*filter)->priv = NULL;
|
|
|
|
dvbdmxfilter->feed = dvbdmxfeed;
|
|
|
|
dvbdmxfilter->type = DMX_TYPE_SEC;
|
|
|
|
dvbdmxfilter->state = DMX_STATE_READY;
|
|
|
|
dvbdmxfilter->next = dvbdmxfeed->filter;
|
|
|
|
dvbdmxfeed->filter = dvbdmxfilter;
|
|
|
|
spin_unlock_irq(&dvbdemux->lock);
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdemux->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_section_feed_set(struct dmx_section_feed *feed,
|
|
|
|
u16 pid, size_t circular_buffer_size,
|
|
|
|
int check_crc)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
|
|
|
|
|
|
|
|
if (pid > 0x1fff)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (mutex_lock_interruptible(&dvbdmx->mutex))
|
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
dvb_demux_feed_add(dvbdmxfeed);
|
|
|
|
|
|
|
|
dvbdmxfeed->pid = pid;
|
|
|
|
dvbdmxfeed->buffer_size = circular_buffer_size;
|
|
|
|
dvbdmxfeed->feed.sec.check_crc = check_crc;
|
|
|
|
|
|
|
|
#ifdef NOBUFS
|
|
|
|
dvbdmxfeed->buffer = NULL;
|
|
|
|
#else
|
|
|
|
dvbdmxfeed->buffer = vmalloc(dvbdmxfeed->buffer_size);
|
|
|
|
if (!dvbdmxfeed->buffer) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
dvbdmxfeed->state = DMX_STATE_READY;
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void prepare_secfilters(struct dvb_demux_feed *dvbdmxfeed)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
struct dvb_demux_filter *f;
|
|
|
|
struct dmx_section_filter *sf;
|
|
|
|
u8 mask, mode, doneq;
|
|
|
|
|
|
|
|
if (!(f = dvbdmxfeed->filter))
|
|
|
|
return;
|
|
|
|
do {
|
|
|
|
sf = &f->filter;
|
|
|
|
doneq = 0;
|
|
|
|
for (i = 0; i < DVB_DEMUX_MASK_MAX; i++) {
|
|
|
|
mode = sf->filter_mode[i];
|
|
|
|
mask = sf->filter_mask[i];
|
|
|
|
f->maskandmode[i] = mask & mode;
|
|
|
|
doneq |= f->maskandnotmode[i] = mask & ~mode;
|
|
|
|
}
|
|
|
|
f->doneq = doneq ? 1 : 0;
|
|
|
|
} while ((f = f->next));
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_section_feed_start_filtering(struct dmx_section_feed *feed)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (mutex_lock_interruptible(&dvbdmx->mutex))
|
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
if (feed->is_filtering) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!dvbdmxfeed->filter) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
dvbdmxfeed->feed.sec.tsfeedp = 0;
|
|
|
|
dvbdmxfeed->feed.sec.secbuf = dvbdmxfeed->feed.sec.secbuf_base;
|
|
|
|
dvbdmxfeed->feed.sec.secbufp = 0;
|
|
|
|
dvbdmxfeed->feed.sec.seclen = 0;
|
|
|
|
dvbdmxfeed->first_cc = 1;
|
|
|
|
dvbdmxfeed->scrambling_bits = 0;
|
|
|
|
|
|
|
|
if (!dvbdmx->start_feed) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
prepare_secfilters(dvbdmxfeed);
|
|
|
|
|
|
|
|
if ((ret = dvbdmx->start_feed(dvbdmxfeed)) < 0) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_lock_irq(&dvbdmx->lock);
|
|
|
|
feed->is_filtering = 1;
|
|
|
|
dvbdmxfeed->state = DMX_STATE_GO;
|
|
|
|
spin_unlock_irq(&dvbdmx->lock);
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_section_feed_stop_filtering(struct dmx_section_feed *feed)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
|
|
|
|
if (!dvbdmx->stop_feed) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = dvbdmx->stop_feed(dvbdmxfeed);
|
|
|
|
|
|
|
|
spin_lock_irq(&dvbdmx->lock);
|
|
|
|
dvbdmxfeed->state = DMX_STATE_READY;
|
|
|
|
feed->is_filtering = 0;
|
|
|
|
spin_unlock_irq(&dvbdmx->lock);
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int dmx_section_feed_data_ready_cb(struct dmx_section_feed *feed,
|
|
|
|
dmx_section_data_ready_cb callback)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
|
|
|
|
if (dvbdmxfeed->state == DMX_STATE_GO) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
dvbdmxfeed->data_ready_cb.sec = callback;
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_section_set_secure_mode(struct dmx_section_feed *feed,
|
|
|
|
struct dmx_secure_mode *secure_mode)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
if (dvbdmxfeed->state == DMX_STATE_GO) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:52:07 +00:00
|
|
|
dvbdmxfeed->secure_mode = *secure_mode;
|
2024-09-09 08:57:42 +00:00
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_section_set_cipher_ops(struct dmx_section_feed *feed,
|
|
|
|
struct dmx_cipher_operations *cipher_ops)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
if (mutex_lock_interruptible(&dvbdmx->mutex))
|
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
2024-09-09 08:52:07 +00:00
|
|
|
if ((dvbdmxfeed->state == DMX_STATE_GO) &&
|
2024-09-09 08:57:42 +00:00
|
|
|
dvbdmx->set_cipher_op) {
|
|
|
|
ret = dvbdmx->set_cipher_op(dvbdmxfeed, cipher_ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!ret)
|
|
|
|
dvbdmxfeed->cipher_ops = *cipher_ops;
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
2024-09-09 08:57:42 +00:00
|
|
|
return ret;
|
2024-09-09 08:52:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int dmx_section_feed_release_filter(struct dmx_section_feed *feed,
|
|
|
|
struct dmx_section_filter *filter)
|
|
|
|
{
|
|
|
|
struct dvb_demux_filter *dvbdmxfilter = (struct dvb_demux_filter *)filter, *f;
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
|
|
|
|
if (dvbdmxfilter->feed != dvbdmxfeed) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
if (feed->is_filtering) {
|
|
|
|
/* release dvbdmx->mutex as far as it is
|
|
|
|
acquired by stop_filtering() itself */
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
2024-09-09 08:52:07 +00:00
|
|
|
feed->stop_filtering(feed);
|
2024-09-09 08:57:42 +00:00
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
}
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
spin_lock_irq(&dvbdmx->lock);
|
|
|
|
f = dvbdmxfeed->filter;
|
|
|
|
|
|
|
|
if (f == dvbdmxfilter) {
|
|
|
|
dvbdmxfeed->filter = dvbdmxfilter->next;
|
|
|
|
} else {
|
|
|
|
while (f->next != dvbdmxfilter)
|
|
|
|
f = f->next;
|
|
|
|
f->next = f->next->next;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
filter->priv = NULL;
|
2024-09-09 08:52:07 +00:00
|
|
|
dvbdmxfilter->state = DMX_STATE_FREE;
|
|
|
|
spin_unlock_irq(&dvbdmx->lock);
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_section_feed_oob_cmd(struct dmx_section_feed *section_feed,
|
|
|
|
struct dmx_oob_command *cmd)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)section_feed;
|
|
|
|
struct dvb_demux *dvbdmx = feed->demux;
|
|
|
|
struct dmx_data_ready data;
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
data.data_length = 0;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
|
|
|
|
if (feed->state != DMX_STATE_GO) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Secure section feeds are handled by the plug-in */
|
|
|
|
if (feed->secure_mode.is_secured) {
|
|
|
|
if (feed->demux->oob_command)
|
|
|
|
ret = feed->demux->oob_command(feed, cmd);
|
|
|
|
else
|
|
|
|
ret = 0;
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (cmd->type) {
|
|
|
|
case DMX_OOB_CMD_EOS:
|
|
|
|
data.status = DMX_OK_EOS;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case DMX_OOB_CMD_MARKER:
|
|
|
|
data.status = DMX_OK_MARKER;
|
|
|
|
data.marker.id = cmd->params.marker.id;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
ret = -EINVAL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!ret)
|
|
|
|
ret = dvb_dmx_notify_section_event(feed, &data, 1);
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_section_get_scrambling_bits(
|
|
|
|
struct dmx_section_feed *section_feed, u8 *value)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *feed = (struct dvb_demux_feed *)section_feed;
|
|
|
|
struct dvb_demux *demux = feed->demux;
|
|
|
|
|
|
|
|
spin_lock(&demux->lock);
|
|
|
|
|
|
|
|
if (!section_feed->is_filtering) {
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
*value = feed->scrambling_bits;
|
|
|
|
spin_unlock(&demux->lock);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_allocate_section_feed(struct dmx_demux *demux,
|
|
|
|
struct dmx_section_feed **feed,
|
|
|
|
dmx_section_cb callback)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdmx = (struct dvb_demux *)demux;
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed;
|
|
|
|
|
|
|
|
if (mutex_lock_interruptible(&dvbdmx->mutex))
|
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
if (!(dvbdmxfeed = dvb_dmx_feed_alloc(dvbdmx))) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
dvbdmxfeed->type = DMX_TYPE_SEC;
|
|
|
|
dvbdmxfeed->cb.sec = callback;
|
|
|
|
dvbdmxfeed->demux = dvbdmx;
|
|
|
|
dvbdmxfeed->pid = 0xffff;
|
|
|
|
dvbdmxfeed->secure_mode.is_secured = 0;
|
2024-09-09 08:57:42 +00:00
|
|
|
dvbdmxfeed->tsp_out_format = DMX_TSP_FORMAT_188;
|
2024-09-09 08:52:07 +00:00
|
|
|
dvbdmxfeed->feed.sec.secbuf = dvbdmxfeed->feed.sec.secbuf_base;
|
|
|
|
dvbdmxfeed->feed.sec.secbufp = dvbdmxfeed->feed.sec.seclen = 0;
|
|
|
|
dvbdmxfeed->feed.sec.tsfeedp = 0;
|
|
|
|
dvbdmxfeed->filter = NULL;
|
|
|
|
dvbdmxfeed->buffer = NULL;
|
2024-09-09 08:57:42 +00:00
|
|
|
dvbdmxfeed->idx_params.enable = 0;
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
(*feed) = &dvbdmxfeed->feed.sec;
|
|
|
|
(*feed)->is_filtering = 0;
|
|
|
|
(*feed)->parent = demux;
|
|
|
|
(*feed)->priv = NULL;
|
|
|
|
|
|
|
|
(*feed)->set = dmx_section_feed_set;
|
|
|
|
(*feed)->allocate_filter = dmx_section_feed_allocate_filter;
|
|
|
|
(*feed)->start_filtering = dmx_section_feed_start_filtering;
|
|
|
|
(*feed)->stop_filtering = dmx_section_feed_stop_filtering;
|
|
|
|
(*feed)->release_filter = dmx_section_feed_release_filter;
|
|
|
|
(*feed)->data_ready_cb = dmx_section_feed_data_ready_cb;
|
|
|
|
(*feed)->notify_data_read = NULL;
|
|
|
|
(*feed)->set_secure_mode = dmx_section_set_secure_mode;
|
2024-09-09 08:57:42 +00:00
|
|
|
(*feed)->set_cipher_ops = dmx_section_set_cipher_ops;
|
2024-09-09 08:52:07 +00:00
|
|
|
(*feed)->oob_command = dvbdmx_section_feed_oob_cmd;
|
|
|
|
(*feed)->get_scrambling_bits = dvbdmx_section_get_scrambling_bits;
|
2024-09-09 08:57:42 +00:00
|
|
|
(*feed)->flush_buffer = NULL;
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_release_section_feed(struct dmx_demux *demux,
|
|
|
|
struct dmx_section_feed *feed)
|
|
|
|
{
|
|
|
|
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
|
|
|
|
struct dvb_demux *dvbdmx = (struct dvb_demux *)demux;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
|
|
|
|
if (dvbdmxfeed->state == DMX_STATE_FREE) {
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
#ifndef NOBUFS
|
|
|
|
vfree(dvbdmxfeed->buffer);
|
|
|
|
dvbdmxfeed->buffer = NULL;
|
|
|
|
#endif
|
|
|
|
dvbdmxfeed->state = DMX_STATE_FREE;
|
2024-09-09 08:57:42 +00:00
|
|
|
feed->priv = NULL;
|
2024-09-09 08:52:07 +00:00
|
|
|
dvb_demux_feed_del(dvbdmxfeed);
|
|
|
|
|
|
|
|
dvbdmxfeed->pid = 0xffff;
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/******************************************************************************
|
|
|
|
* dvb_demux kernel data API calls
|
|
|
|
******************************************************************************/
|
|
|
|
|
|
|
|
static int dvbdmx_open(struct dmx_demux *demux)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
|
|
|
|
|
|
|
|
if (dvbdemux->users >= MAX_DVB_DEMUX_USERS)
|
|
|
|
return -EUSERS;
|
|
|
|
|
|
|
|
dvbdemux->users++;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_close(struct dmx_demux *demux)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
|
|
|
|
|
|
|
|
if (dvbdemux->users == 0)
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
dvbdemux->users--;
|
|
|
|
//FIXME: release any unneeded resources if users==0
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_write(struct dmx_demux *demux, const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
if (!demux->frontend || !buf || demux->dvr_input_protected ||
|
|
|
|
(demux->frontend->source != DMX_MEMORY_FE))
|
2024-09-09 08:52:07 +00:00
|
|
|
return -EINVAL;
|
2024-09-09 08:57:42 +00:00
|
|
|
if (mutex_lock_interruptible(&dvbdemux->mutex))
|
|
|
|
return -ERESTARTSYS;
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
dvb_dmx_swfilter_format(dvbdemux, buf, count, dvbdemux->tsp_format);
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
mutex_unlock(&dvbdemux->mutex);
|
|
|
|
|
2024-09-09 08:52:07 +00:00
|
|
|
if (signal_pending(current))
|
|
|
|
return -EINTR;
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_write_cancel(struct dmx_demux *demux)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdmx = (struct dvb_demux *)demux;
|
|
|
|
|
|
|
|
spin_lock_irq(&dvbdmx->lock);
|
|
|
|
|
|
|
|
/* cancel any pending wait for decoder's buffers */
|
|
|
|
dvbdmx->sw_filter_abort = 1;
|
|
|
|
dvbdmx->tsbufp = 0;
|
|
|
|
dvb_dmx_configure_decoder_fullness(dvbdmx, 0);
|
|
|
|
|
|
|
|
spin_unlock_irq(&dvbdmx->lock);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_set_playback_mode(struct dmx_demux *demux,
|
|
|
|
enum dmx_playback_mode_t mode,
|
|
|
|
dmx_ts_fullness ts_fullness_callback,
|
|
|
|
dmx_section_fullness sec_fullness_callback)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdmx = (struct dvb_demux *)demux;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdmx->mutex);
|
|
|
|
|
|
|
|
dvbdmx->playback_mode = mode;
|
|
|
|
dvbdmx->buffer_ctrl.ts = ts_fullness_callback;
|
|
|
|
dvbdmx->buffer_ctrl.sec = sec_fullness_callback;
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdmx->mutex);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_add_frontend(struct dmx_demux *demux,
|
|
|
|
struct dmx_frontend *frontend)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
|
|
|
|
struct list_head *head = &dvbdemux->frontend_list;
|
|
|
|
|
|
|
|
list_add(&(frontend->connectivity_list), head);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_remove_frontend(struct dmx_demux *demux,
|
|
|
|
struct dmx_frontend *frontend)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
|
|
|
|
struct list_head *pos, *n, *head = &dvbdemux->frontend_list;
|
|
|
|
|
|
|
|
list_for_each_safe(pos, n, head) {
|
|
|
|
if (DMX_FE_ENTRY(pos) == frontend) {
|
|
|
|
list_del(pos);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct list_head *dvbdmx_get_frontends(struct dmx_demux *demux)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
|
|
|
|
|
|
|
|
if (list_empty(&dvbdemux->frontend_list))
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
return &dvbdemux->frontend_list;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_connect_frontend(struct dmx_demux *demux,
|
|
|
|
struct dmx_frontend *frontend)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
|
|
|
|
|
|
|
|
if (demux->frontend)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdemux->mutex);
|
|
|
|
|
|
|
|
demux->frontend = frontend;
|
|
|
|
mutex_unlock(&dvbdemux->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_disconnect_frontend(struct dmx_demux *demux)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdemux->mutex);
|
2024-09-09 08:57:42 +00:00
|
|
|
dvbdemux->sw_filter_abort = 0;
|
2024-09-09 08:52:07 +00:00
|
|
|
demux->frontend = NULL;
|
|
|
|
mutex_unlock(&dvbdemux->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_get_pes_pids(struct dmx_demux *demux, u16 * pids)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
|
|
|
|
|
|
|
|
memcpy(pids, dvbdemux->pids, 5 * sizeof(u16));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_get_tsp_size(struct dmx_demux *demux)
|
|
|
|
{
|
|
|
|
int tsp_size;
|
|
|
|
struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdemux->mutex);
|
|
|
|
tsp_size = dvbdemux->ts_packet_size;
|
|
|
|
mutex_unlock(&dvbdemux->mutex);
|
|
|
|
|
|
|
|
return tsp_size;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dvbdmx_set_tsp_format(
|
|
|
|
struct dmx_demux *demux,
|
|
|
|
enum dmx_tsp_format_t tsp_format)
|
|
|
|
{
|
|
|
|
struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
|
|
|
|
|
|
|
|
if ((tsp_format > DMX_TSP_FORMAT_204) ||
|
|
|
|
(tsp_format < DMX_TSP_FORMAT_188))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
mutex_lock(&dvbdemux->mutex);
|
|
|
|
|
|
|
|
dvbdemux->tsp_format = tsp_format;
|
|
|
|
switch (tsp_format) {
|
|
|
|
case DMX_TSP_FORMAT_188:
|
|
|
|
dvbdemux->ts_packet_size = 188;
|
|
|
|
break;
|
|
|
|
case DMX_TSP_FORMAT_192_TAIL:
|
|
|
|
case DMX_TSP_FORMAT_192_HEAD:
|
|
|
|
dvbdemux->ts_packet_size = 192;
|
|
|
|
break;
|
|
|
|
case DMX_TSP_FORMAT_204:
|
|
|
|
dvbdemux->ts_packet_size = 204;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
mutex_unlock(&dvbdemux->mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int dvb_dmx_init(struct dvb_demux *dvbdemux)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
struct dmx_demux *dmx = &dvbdemux->dmx;
|
|
|
|
|
|
|
|
dvbdemux->cnt_storage = NULL;
|
|
|
|
dvbdemux->users = 0;
|
|
|
|
dvbdemux->filter = vmalloc(dvbdemux->filternum * sizeof(struct dvb_demux_filter));
|
|
|
|
|
|
|
|
if (!dvbdemux->filter)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
dvbdemux->feed = vmalloc(dvbdemux->feednum * sizeof(struct dvb_demux_feed));
|
|
|
|
if (!dvbdemux->feed) {
|
|
|
|
vfree(dvbdemux->filter);
|
|
|
|
dvbdemux->filter = NULL;
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
dvbdemux->rec_info_pool = vmalloc(dvbdemux->feednum *
|
|
|
|
sizeof(struct dvb_demux_rec_info));
|
|
|
|
if (!dvbdemux->rec_info_pool) {
|
|
|
|
vfree(dvbdemux->feed);
|
|
|
|
vfree(dvbdemux->filter);
|
|
|
|
dvbdemux->feed = NULL;
|
|
|
|
dvbdemux->filter = NULL;
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
dvbdemux->sw_filter_abort = 0;
|
2024-09-09 08:52:07 +00:00
|
|
|
dvbdemux->total_process_time = 0;
|
|
|
|
dvbdemux->total_crc_time = 0;
|
|
|
|
snprintf(dvbdemux->alias,
|
|
|
|
MAX_DVB_DEMUX_NAME_LEN,
|
|
|
|
"demux%d",
|
|
|
|
dvb_demux_index++);
|
|
|
|
|
|
|
|
dvbdemux->dmx.debugfs_demux_dir =
|
|
|
|
debugfs_create_dir(dvbdemux->alias, NULL);
|
|
|
|
|
|
|
|
if (dvbdemux->dmx.debugfs_demux_dir != NULL) {
|
|
|
|
debugfs_create_u32(
|
|
|
|
"total_processing_time",
|
|
|
|
S_IRUGO | S_IWUSR | S_IWGRP,
|
|
|
|
dvbdemux->dmx.debugfs_demux_dir,
|
|
|
|
&dvbdemux->total_process_time);
|
|
|
|
|
|
|
|
debugfs_create_u32(
|
|
|
|
"total_crc_time",
|
|
|
|
S_IRUGO | S_IWUSR | S_IWGRP,
|
|
|
|
dvbdemux->dmx.debugfs_demux_dir,
|
|
|
|
&dvbdemux->total_crc_time);
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < dvbdemux->filternum; i++) {
|
|
|
|
dvbdemux->filter[i].state = DMX_STATE_FREE;
|
|
|
|
dvbdemux->filter[i].index = i;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < dvbdemux->feednum; i++) {
|
|
|
|
dvbdemux->feed[i].state = DMX_STATE_FREE;
|
|
|
|
dvbdemux->feed[i].index = i;
|
|
|
|
|
|
|
|
dvbdemux->rec_info_pool[i].ref_count = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
dvbdemux->cnt_storage = vmalloc(MAX_PID + 1);
|
|
|
|
if (!dvbdemux->cnt_storage)
|
|
|
|
printk(KERN_WARNING "Couldn't allocate memory for TS/TEI check. Disabling it\n");
|
|
|
|
|
|
|
|
INIT_LIST_HEAD(&dvbdemux->frontend_list);
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
for (i = 0; i < DMX_PES_OTHER; i++) {
|
2024-09-09 08:52:07 +00:00
|
|
|
dvbdemux->pesfilter[i] = NULL;
|
|
|
|
dvbdemux->pids[i] = 0xffff;
|
|
|
|
}
|
|
|
|
|
|
|
|
INIT_LIST_HEAD(&dvbdemux->feed_list);
|
|
|
|
|
|
|
|
dvbdemux->playing = 0;
|
|
|
|
dvbdemux->recording = 0;
|
|
|
|
dvbdemux->tsbufp = 0;
|
|
|
|
|
|
|
|
dvbdemux->tsp_format = DMX_TSP_FORMAT_188;
|
|
|
|
dvbdemux->ts_packet_size = 188;
|
|
|
|
|
|
|
|
if (!dvbdemux->check_crc32)
|
|
|
|
dvbdemux->check_crc32 = dvb_dmx_crc32;
|
|
|
|
|
|
|
|
if (!dvbdemux->memcopy)
|
|
|
|
dvbdemux->memcopy = dvb_dmx_memcopy;
|
|
|
|
|
|
|
|
dmx->frontend = NULL;
|
|
|
|
dmx->priv = dvbdemux;
|
|
|
|
dmx->open = dvbdmx_open;
|
|
|
|
dmx->close = dvbdmx_close;
|
|
|
|
dmx->write = dvbdmx_write;
|
|
|
|
dmx->write_cancel = dvbdmx_write_cancel;
|
|
|
|
dmx->set_playback_mode = dvbdmx_set_playback_mode;
|
|
|
|
dmx->allocate_ts_feed = dvbdmx_allocate_ts_feed;
|
|
|
|
dmx->release_ts_feed = dvbdmx_release_ts_feed;
|
|
|
|
dmx->allocate_section_feed = dvbdmx_allocate_section_feed;
|
|
|
|
dmx->release_section_feed = dvbdmx_release_section_feed;
|
|
|
|
dmx->map_buffer = NULL;
|
|
|
|
dmx->unmap_buffer = NULL;
|
|
|
|
|
|
|
|
dmx->add_frontend = dvbdmx_add_frontend;
|
|
|
|
dmx->remove_frontend = dvbdmx_remove_frontend;
|
|
|
|
dmx->get_frontends = dvbdmx_get_frontends;
|
|
|
|
dmx->connect_frontend = dvbdmx_connect_frontend;
|
|
|
|
dmx->disconnect_frontend = dvbdmx_disconnect_frontend;
|
|
|
|
dmx->get_pes_pids = dvbdmx_get_pes_pids;
|
|
|
|
|
|
|
|
dmx->set_tsp_format = dvbdmx_set_tsp_format;
|
|
|
|
dmx->get_tsp_size = dvbdmx_get_tsp_size;
|
|
|
|
|
|
|
|
mutex_init(&dvbdemux->mutex);
|
|
|
|
spin_lock_init(&dvbdemux->lock);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_init);
|
|
|
|
|
|
|
|
void dvb_dmx_release(struct dvb_demux *dvbdemux)
|
|
|
|
{
|
|
|
|
if (dvbdemux->dmx.debugfs_demux_dir != NULL)
|
|
|
|
debugfs_remove_recursive(dvbdemux->dmx.debugfs_demux_dir);
|
|
|
|
|
|
|
|
dvb_demux_index--;
|
|
|
|
vfree(dvbdemux->cnt_storage);
|
|
|
|
vfree(dvbdemux->filter);
|
|
|
|
vfree(dvbdemux->feed);
|
|
|
|
vfree(dvbdemux->rec_info_pool);
|
|
|
|
}
|
|
|
|
|
|
|
|
EXPORT_SYMBOL(dvb_dmx_release);
|