libavfilter/src_movie.c File Reference

movie video source More...

#include <float.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
Defines
#define	OFFSET(x)   offsetof(MovieContext, x)
#define	F   AV_OPT_FLAG_FILTERING_PARAM
#define	describe_bufref(buf, link)   describe_bufref_to_str((char[1024]){0}, 1024, buf, 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, const char *args, const AVClass *class)
static av_cold void	movie_uninit (AVFilterContext *ctx)
static int	movie_query_formats (AVFilterContext *ctx)
static AVFilterBufferRef *	frame_to_buf (enum AVMediaType type, AVFrame *frame, AVFilterLink *outlink)
static char *	describe_bufref_to_str (char *dst, size_t dst_size, AVFilterBufferRef *buf, 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.

---

Define Documentation

#define describe_bufref	(	buf,
		link		)	describe_bufref_to_str((char[1024]){0}, 1024, buf, link)

Definition at line 445 of file src_movie.c.

Referenced by movie_push_frame().

#define F   AV_OPT_FLAG_FILTERING_PARAM

Definition at line 73 of file src_movie.c.

#define OFFSET

(

x

)

offsetof(MovieContext, x)

Definition at line 72 of file src_movie.c.

---

Function Documentation

static char* describe_bufref_to_str	(	char *	dst,
		size_t	dst_size,
		AVFilterBufferRef *	buf,
		AVFilterLink *	link
	)			[static]

Definition at line 419 of file src_movie.c.

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

Definition at line 91 of file src_movie.c.

Referenced by movie_common_init().

static AVFilterBufferRef* frame_to_buf	(	enum AVMediaType	type,
		AVFrame *	frame,
		AVFilterLink *	outlink
	)			[static]

Definition at line 399 of file src_movie.c.

Referenced by movie_push_frame().

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

Definition at line 164 of file src_movie.c.

Referenced by movie_common_init().

static av_cold int movie_common_init	(	AVFilterContext *	ctx,
		const char *	args,
		const AVClass *	class
	)			[static]

Definition at line 187 of file src_movie.c.

static int movie_config_output_props

(

AVFilterLink *

outlink

)

[static]

Definition at line 376 of file src_movie.c.

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 482 of file src_movie.c.

Referenced by movie_request_frame().

static int movie_query_formats

(

AVFilterContext *

ctx

)

[static]

Definition at line 344 of file src_movie.c.

static int movie_request_frame

(

AVFilterLink *

outlink

)

[static]

Definition at line 584 of file src_movie.c.

static av_cold void movie_uninit

(

AVFilterContext *

ctx

)

[static]

Definition at line 325 of file src_movie.c.

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

Definition at line 145 of file src_movie.c.

Referenced by movie_common_init().

static int rewind_file

(

AVFilterContext *

ctx

)

[static]

Definition at line 448 of file src_movie.c.

Referenced by movie_push_frame().

---

Variable Documentation

const AVOption movie_options[] [static]

Initial value:

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

Definition at line 75 of file src_movie.c.