src_movie.c File Reference

movie video source More...

#include <float.h>
#include "libavutil/attributes.h"
#include "libavutil/avstring.h"
#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "libavutil/timestamp.h"
#include "libavformat/avformat.h"
#include "audio.h"
#include "avcodec.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	MovieStream
struct	MovieContext

Macros
#define	OFFSET(x)   offsetof(MovieContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_VIDEO_PARAM
#define	describe_frameref(f, link)   describe_frame_to_str((char[1024]){0}, 1024, f, link)

Functions
static int	movie_config_output_props (AVFilterLink *outlink)
static int	movie_request_frame (AVFilterLink *outlink)
static AVStream *	find_stream (void *log, AVFormatContext *avf, const char *spec)
static int	open_stream (void *log, MovieStream *st)
static int	guess_channel_layout (MovieStream *st, int st_index, void *log_ctx)
static av_cold int	movie_common_init (AVFilterContext *ctx)
static av_cold void	movie_uninit (AVFilterContext *ctx)
static int	movie_query_formats (AVFilterContext *ctx)
static char *	describe_frame_to_str (char *dst, size_t dst_size, AVFrame *frame, AVFilterLink *link)
static int	rewind_file (AVFilterContext *ctx)
static int	movie_push_frame (AVFilterContext *ctx, unsigned out_id)
	Try to push a frame to the requested output.

Variables
static const AVOption	movie_options []

Detailed Description

movie video source

Todo:

use direct rendering (no allocation of a new frame)

support a PTS correction mechanism

Definition in file src_movie.c.

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(MovieContext, x)

Definition at line 72 of file src_movie.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_VIDEO_PARAM

Definition at line 73 of file src_movie.c.

#define describe_frameref	(		f,
			link
	)		describe_frame_to_str((char[1024]){0}, 1024, f, link)

Definition at line 413 of file src_movie.c.

Referenced by movie_push_frame().

Function Documentation

static int movie_config_output_props ( AVFilterLink *  outlink )

static

Definition at line 364 of file src_movie.c.

Referenced by movie_common_init().

static int movie_request_frame ( AVFilterLink *  outlink )

static

Definition at line 551 of file src_movie.c.

Referenced by movie_common_init().

static AVStream* find_stream ( void *  log, AVFormatContext *  avf, const char *  spec  )

static

Definition at line 92 of file src_movie.c.

Referenced by movie_common_init().

static int open_stream ( void *  log, MovieStream *  st  )

static

Definition at line 146 of file src_movie.c.

Referenced by movie_common_init().

static int guess_channel_layout ( MovieStream *  st, int  st_index, void *  log_ctx  )

static

Definition at line 167 of file src_movie.c.

Referenced by movie_common_init().

static av_cold int movie_common_init ( AVFilterContext *  ctx )

static

Definition at line 190 of file src_movie.c.

static av_cold void movie_uninit ( AVFilterContext *  ctx )

static

Definition at line 315 of file src_movie.c.

static int movie_query_formats ( AVFilterContext *  ctx )

static

Definition at line 332 of file src_movie.c.

static char* describe_frame_to_str ( char *  dst, size_t  dst_size, AVFrame *  frame, AVFilterLink *  link  )

static

Definition at line 387 of file src_movie.c.

static int rewind_file ( AVFilterContext *  ctx )

static

Definition at line 416 of file src_movie.c.

Referenced by movie_push_frame().

static int movie_push_frame ( AVFilterContext *  ctx, unsigned  out_id  )

static

Try to push a frame to the requested output.

Parameters

ctx	filter context
out_id	number of output where a frame is wanted; if the frame is read from file, used to set the return value; if the codec is being flushed, flush the corresponding stream

Returns

1 if a frame was pushed on the requested output, 0 if another attempt is possible, <0 AVERROR code

Definition at line 450 of file src_movie.c.

Referenced by movie_request_frame().

Variable Documentation

const AVOption movie_options[]

static

Initial value:

= {
    { "filename",     NULL,                      OFFSET(file_name),    AV_OPT_TYPE_STRING,                                    .flags = FLAGS },
    { "format_name",  "set format name",         OFFSET(format_name),  AV_OPT_TYPE_STRING,                                    .flags = FLAGS },
    { "f",            "set format name",         OFFSET(format_name),  AV_OPT_TYPE_STRING,                                    .flags = FLAGS },
    { "stream_index", "set stream index",        OFFSET(stream_index), AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX,                 FLAGS  },
    { "si",           "set stream index",        OFFSET(stream_index), AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX,                 FLAGS  },
    { "seek_point",   "set seekpoint (seconds)", OFFSET(seek_point_d), AV_OPT_TYPE_DOUBLE, { .dbl =  0 },  0, (INT64_MAX-1) / 1000000, FLAGS },
    { "sp",           "set seekpoint (seconds)", OFFSET(seek_point_d), AV_OPT_TYPE_DOUBLE, { .dbl =  0 },  0, (INT64_MAX-1) / 1000000, FLAGS },
    { "streams",      "set streams",             OFFSET(stream_specs), AV_OPT_TYPE_STRING, {.str =  0},  CHAR_MAX, CHAR_MAX, FLAGS },
    { "s",            "set streams",             OFFSET(stream_specs), AV_OPT_TYPE_STRING, {.str =  0},  CHAR_MAX, CHAR_MAX, FLAGS },
    { "loop",         "set loop count",          OFFSET(loop_count),   AV_OPT_TYPE_INT,    {.i64 =  1},  0,        INT_MAX, FLAGS },
    { NULL },
}

Definition at line 75 of file src_movie.c.