ffmpeg_demux.c File Reference

#include <float.h>
#include <stdint.h>
#include "ffmpeg.h"
#include "ffmpeg_sched.h"
#include "ffmpeg_utils.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/display.h"
#include "libavutil/error.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/time.h"
#include "libavutil/timestamp.h"
#include "libavcodec/bsf.h"
#include "libavcodec/packet.h"
#include "libavformat/avformat.h"

Go to the source code of this file.

Data Structures
struct	DemuxStream
struct	DemuxStreamGroup
struct	Demuxer
struct	DemuxThreadContext

Macros
#define	DECODING_FOR_OST   1
#define	DECODING_FOR_FILTER   2
#define	SHOW_TS_DEBUG(tag_)

Functions
static DemuxStream *	ds_from_ist (InputStream *ist)
static Demuxer *	demuxer_from_ifile (InputFile *f)
InputStream *	ist_find_unused (enum AVMediaType type)
	Find an unused input stream of given type. More...
static void	report_new_stream (Demuxer *d, const AVPacket *pkt)
static int	seek_to_start (Demuxer *d, Timestamp end_pts)
static void	ts_discontinuity_detect (Demuxer *d, InputStream *ist, AVPacket *pkt)
static void	ts_discontinuity_process (Demuxer *d, InputStream *ist, AVPacket *pkt)
static int	ist_dts_update (DemuxStream *ds, AVPacket *pkt, FrameData *fd)
static int	ts_fixup (Demuxer *d, AVPacket *pkt, FrameData *fd)
static int	input_packet_process (Demuxer *d, AVPacket *pkt, unsigned *send_flags)
static void	readrate_sleep (Demuxer *d)
static int	do_send (Demuxer *d, DemuxStream *ds, AVPacket *pkt, unsigned flags, const char *pkt_desc)
static int	demux_send (Demuxer *d, DemuxThreadContext *dt, DemuxStream *ds, AVPacket *pkt, unsigned flags)
static int	demux_bsf_flush (Demuxer *d, DemuxThreadContext *dt)
static void	discard_unused_programs (InputFile *ifile)
static void	thread_set_name (InputFile *f)
static void	demux_thread_uninit (DemuxThreadContext *dt)
static int	demux_thread_init (DemuxThreadContext *dt)
static int	input_thread (void *arg)
static void	demux_final_stats (Demuxer *d)
static void	ist_free (InputStream **pist)
static void	istg_free (InputStreamGroup **pistg)
void	ifile_close (InputFile **pf)
int	ist_use (InputStream *ist, int decoding_needed, const ViewSpecifier *vs, SchedulerNode *src)
int	ist_filter_add (InputStream *ist, InputFilter *ifilter, int is_simple, const ViewSpecifier *vs, InputFilterOptions *opts, SchedulerNode *src)
static int	choose_decoder (const OptionsContext *o, void *logctx, AVFormatContext *s, AVStream *st, enum HWAccelID hwaccel_id, enum AVHWDeviceType hwaccel_device_type, const AVCodec **pcodec)
static int	guess_input_channel_layout (InputStream *ist, AVCodecParameters *par, int guess_layout_max)
static int	add_display_matrix_to_stream (const OptionsContext *o, AVFormatContext *ctx, InputStream *ist)
static const char *	input_stream_item_name (void *obj)
static DemuxStream *	demux_stream_alloc (Demuxer *d, AVStream *st)
static int	ist_add (const OptionsContext *o, Demuxer *d, AVStream *st, AVDictionary **opts_used)
static const char *	input_stream_group_item_name (void *obj)
static DemuxStreamGroup *	demux_stream_group_alloc (Demuxer *d, AVStreamGroup *stg)
static int	istg_parse_tile_grid (const OptionsContext *o, Demuxer *d, InputStreamGroup *istg)
static int	istg_add (const OptionsContext *o, Demuxer *d, AVStreamGroup *stg)
static int	dump_attachment (InputStream *ist, const char *filename)
static const char *	input_file_item_name (void *obj)
static Demuxer *	demux_alloc (void)
int	ifile_open (const OptionsContext *o, const char *filename, Scheduler *sch)

Variables
static const AVClass	input_stream_class
static const AVClass	input_stream_group_class
static const AVClass	input_file_class

Macro Definition Documentation

DECODING_FOR_OST

#define DECODING_FOR_OST   1

Definition at line 56 of file ffmpeg_demux.c.

DECODING_FOR_FILTER

#define DECODING_FOR_FILTER   2

Definition at line 57 of file ffmpeg_demux.c.

SHOW_TS_DEBUG

#define SHOW_TS_DEBUG

(

tag_

)

Value:

    if (debug_ts) {                                                     \
        av_log(ist, AV_LOG_INFO, "%s -> ist_index:%d:%d type:%s "       \
               "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s duration:%s duration_time:%s\n", \
               tag_, ifile->index, pkt->stream_index,                   \
               av_get_media_type_string(ist->st->codecpar->codec_type), \
               av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &pkt->time_base), \
               av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &pkt->time_base), \
               av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, &pkt->time_base)); \
    }

Function Documentation

ds_from_ist()

static DemuxStream* ds_from_ist ( InputStream *  ist )

static

Definition at line 163 of file ffmpeg_demux.c.

Referenced by add_display_matrix_to_stream(), demux_bsf_flush(), demux_final_stats(), demux_send(), discard_unused_programs(), input_packet_process(), input_thread(), ist_filter_add(), ist_find_unused(), ist_free(), ist_use(), readrate_sleep(), ts_discontinuity_detect(), and ts_fixup().

demuxer_from_ifile()

static Demuxer* demuxer_from_ifile ( InputFile *  f )

static

Definition at line 168 of file ffmpeg_demux.c.

Referenced by ifile_close(), ist_filter_add(), and ist_use().

ist_find_unused()

InputStream* ist_find_unused

(

enum AVMediaType

type

)

Find an unused input stream of given type.

Definition at line 173 of file ffmpeg_demux.c.

Referenced by fg_complex_bind_input().

report_new_stream()

static void report_new_stream ( Demuxer *  d, const AVPacket *  pkt  )

static

Definition at line 184 of file ffmpeg_demux.c.

Referenced by input_thread().

seek_to_start()

static int seek_to_start ( Demuxer *  d, Timestamp  end_pts  )

static

Definition at line 197 of file ffmpeg_demux.c.

Referenced by input_thread().

ts_discontinuity_detect()

static void ts_discontinuity_detect ( Demuxer *  d, InputStream *  ist, AVPacket *  pkt  )

static

Definition at line 224 of file ffmpeg_demux.c.

Referenced by ts_discontinuity_process().

ts_discontinuity_process()

static void ts_discontinuity_process ( Demuxer *  d, InputStream *  ist, AVPacket *  pkt  )

static

Definition at line 292 of file ffmpeg_demux.c.

Referenced by ts_fixup().

ist_dts_update()

static int ist_dts_update ( DemuxStream *  ds, AVPacket *  pkt, FrameData *  fd  )

static

Definition at line 312 of file ffmpeg_demux.c.

Referenced by ts_fixup().

ts_fixup()

static int ts_fixup ( Demuxer *  d, AVPacket *  pkt, FrameData *  fd  )

static

Definition at line 372 of file ffmpeg_demux.c.

Referenced by input_packet_process().

input_packet_process()

static int input_packet_process ( Demuxer *  d, AVPacket *  pkt, unsigned *  send_flags  )

static

Definition at line 463 of file ffmpeg_demux.c.

Referenced by input_thread().

readrate_sleep()

static void readrate_sleep ( Demuxer *  d )

static

Definition at line 507 of file ffmpeg_demux.c.

Referenced by input_thread().

do_send()

static int do_send ( Demuxer *  d, DemuxStream *  ds, AVPacket *  pkt, unsigned  flags, const char *  pkt_desc  )

static

Definition at line 553 of file ffmpeg_demux.c.

Referenced by demux_send().

demux_send()

static int demux_send ( Demuxer *  d, DemuxThreadContext *  dt, DemuxStream *  ds, AVPacket *  pkt, unsigned  flags  )

static

Definition at line 582 of file ffmpeg_demux.c.

Referenced by demux_bsf_flush(), and input_thread().

demux_bsf_flush()

static int demux_bsf_flush ( Demuxer *  d, DemuxThreadContext *  dt  )

static

Definition at line 651 of file ffmpeg_demux.c.

Referenced by input_thread().

discard_unused_programs()

static void discard_unused_programs ( InputFile *  ifile )

static

Definition at line 676 of file ffmpeg_demux.c.

Referenced by input_thread().

thread_set_name()

static void thread_set_name ( InputFile *  f )

static

Definition at line 694 of file ffmpeg_demux.c.

Referenced by input_thread().

demux_thread_uninit()

static void demux_thread_uninit ( DemuxThreadContext *  dt )

static

Definition at line 701 of file ffmpeg_demux.c.

Referenced by input_thread().

demux_thread_init()

static int demux_thread_init ( DemuxThreadContext *  dt )

static

Definition at line 709 of file ffmpeg_demux.c.

Referenced by input_thread().

input_thread()

static int input_thread ( void *  arg )

static

Definition at line 724 of file ffmpeg_demux.c.

Referenced by ifile_open().

demux_final_stats()

static void demux_final_stats ( Demuxer *  d )

static

Definition at line 832 of file ffmpeg_demux.c.

Referenced by ifile_close().

ist_free()

static void ist_free ( InputStream **  pist )

static

Definition at line 872 of file ffmpeg_demux.c.

Referenced by ifile_close().

istg_free()

static void istg_free ( InputStreamGroup **  pistg )

static

Definition at line 896 of file ffmpeg_demux.c.

Referenced by ifile_close().

ifile_close()

void ifile_close

(

InputFile **

pf

)

Definition at line 906 of file ffmpeg_demux.c.

Referenced by ffmpeg_cleanup().

ist_use()

int ist_use	(	InputStream *	ist,
		int	decoding_needed,
		const ViewSpecifier *	vs,
		SchedulerNode *	src
	)

Definition at line 932 of file ffmpeg_demux.c.

Referenced by ist_filter_add(), and ost_add().

ist_filter_add()

int ist_filter_add	(	InputStream *	ist,
		InputFilter *	ifilter,
		int	is_simple,
		const ViewSpecifier *	vs,
		InputFilterOptions *	opts,
		SchedulerNode *	src
	)

Definition at line 1042 of file ffmpeg_demux.c.

Referenced by ifilter_bind_ist().

choose_decoder()

static int choose_decoder ( const OptionsContext *  o, void *  logctx, AVFormatContext *  s, AVStream *  st, enum HWAccelID  hwaccel_id, enum AVHWDeviceType  hwaccel_device_type, const AVCodec **  pcodec  )

static

Definition at line 1140 of file ffmpeg_demux.c.

Referenced by ifile_open(), and ist_add().

guess_input_channel_layout()

static int guess_input_channel_layout ( InputStream *  ist, AVCodecParameters *  par, int  guess_layout_max  )

static

Definition at line 1187 of file ffmpeg_demux.c.

Referenced by ist_add().

add_display_matrix_to_stream()

static int add_display_matrix_to_stream ( const OptionsContext *  o, AVFormatContext *  ctx, InputStream *  ist  )

static

Definition at line 1204 of file ffmpeg_demux.c.

Referenced by ist_add().

input_stream_item_name()

static const char* input_stream_item_name ( void *  obj )

static

Definition at line 1248 of file ffmpeg_demux.c.

demux_stream_alloc()

static DemuxStream* demux_stream_alloc ( Demuxer *  d, AVStream *  st  )

static

Definition at line 1262 of file ffmpeg_demux.c.

Referenced by ist_add().

ist_add()

static int ist_add ( const OptionsContext *  o, Demuxer *  d, AVStream *  st, AVDictionary **  opts_used  )

static

Definition at line 1287 of file ffmpeg_demux.c.

Referenced by ifile_open().

input_stream_group_item_name()

static const char* input_stream_group_item_name ( void *  obj )

static

Definition at line 1610 of file ffmpeg_demux.c.

demux_stream_group_alloc()

static DemuxStreamGroup* demux_stream_group_alloc ( Demuxer *  d, AVStreamGroup *  stg  )

static

Definition at line 1624 of file ffmpeg_demux.c.

Referenced by istg_add().

istg_parse_tile_grid()

static int istg_parse_tile_grid ( const OptionsContext *  o, Demuxer *  d, InputStreamGroup *  istg  )

static

Definition at line 1644 of file ffmpeg_demux.c.

Referenced by istg_add().

istg_add()

static int istg_add ( const OptionsContext *  o, Demuxer *  d, AVStreamGroup *  stg  )

static

Definition at line 1723 of file ffmpeg_demux.c.

Referenced by ifile_open().

dump_attachment()

static int dump_attachment ( InputStream *  ist, const char *  filename  )

static

Definition at line 1748 of file ffmpeg_demux.c.

Referenced by ifile_open().

input_file_item_name()

static const char* input_file_item_name ( void *  obj )

static

Definition at line 1786 of file ffmpeg_demux.c.

demux_alloc()

static Demuxer* demux_alloc ( void  )

static

Definition at line 1800 of file ffmpeg_demux.c.

Referenced by ifile_open().

ifile_open()

int ifile_open	(	const OptionsContext *	o,
		const char *	filename,
		Scheduler *	sch
	)

Definition at line 1815 of file ffmpeg_demux.c.

Variable Documentation

input_stream_class

const AVClass input_stream_class

static

Initial value:

= {
    .class_name = "InputStream",
    .version    = LIBAVUTIL_VERSION_INT,
    .item_name  = input_stream_item_name,
    .category   = AV_CLASS_CATEGORY_DEMUXER,
}

Definition at line 1255 of file ffmpeg_demux.c.

Referenced by demux_stream_alloc().

input_stream_group_class

const AVClass input_stream_group_class

static

Initial value:

= {
    .class_name = "InputStreamGroup",
    .version    = LIBAVUTIL_VERSION_INT,
    .item_name  = input_stream_group_item_name,
    .category   = AV_CLASS_CATEGORY_DEMUXER,
}

Definition at line 1617 of file ffmpeg_demux.c.

Referenced by demux_stream_group_alloc().

input_file_class

const AVClass input_file_class

static

Initial value:

= {
    .class_name = "InputFile",
    .version    = LIBAVUTIL_VERSION_INT,
    .item_name  = input_file_item_name,
    .category   = AV_CLASS_CATEGORY_DEMUXER,
}

Definition at line 1793 of file ffmpeg_demux.c.

Referenced by demux_alloc().