framequeue.c File Reference

#include "libavutil/avassert.h"
#include "framequeue.h"

Go to the source code of this file.

Functions
static FFFrameBucket *	bucket (FFFrameQueue *fq, size_t idx)
void	ff_framequeue_global_init (FFFrameQueueGlobal *fqg)
	Init a global structure. More...
static void	check_consistency (FFFrameQueue *fq)
void	ff_framequeue_init (FFFrameQueue *fq, FFFrameQueueGlobal *fqg)
	Init a frame queue and attach it to a global structure. More...
void	ff_framequeue_free (FFFrameQueue *fq)
	Free the queue and all queued frames. More...
int	ff_framequeue_add (FFFrameQueue *fq, AVFrame *frame)
	Add a frame. More...
AVFrame *	ff_framequeue_take (FFFrameQueue *fq)
	Take the first frame in the queue. More...
AVFrame *	ff_framequeue_peek (FFFrameQueue *fq, size_t idx)
	Access a frame in the queue, without removing it. More...
void	ff_framequeue_skip_samples (FFFrameQueue *fq, size_t samples, AVRational time_base)
	Skip samples from the first frame in the queue. More...

Function Documentation

static FFFrameBucket* bucket ( FFFrameQueue *  fq, size_t  idx  )

inlinestatic

Definition at line 25 of file framequeue.c.

Referenced by check_consistency(), epic_hash_add(), epic_hash_find(), ff_framequeue_add(), ff_framequeue_peek(), ff_framequeue_skip_samples(), and ff_framequeue_take().

void ff_framequeue_global_init

(

FFFrameQueueGlobal *

fqg

)

Init a global structure.

Definition at line 30 of file framequeue.c.

Referenced by avfilter_graph_alloc().

static void check_consistency ( FFFrameQueue *  fq )

static

Definition at line 34 of file framequeue.c.

Referenced by ff_framequeue_add(), ff_framequeue_peek(), ff_framequeue_skip_samples(), and ff_framequeue_take().

void ff_framequeue_init	(	FFFrameQueue *	fq,
		FFFrameQueueGlobal *	fqg
	)

Init a frame queue and attach it to a global structure.

Definition at line 47 of file framequeue.c.

Referenced by avfilter_link().

void ff_framequeue_free

(

FFFrameQueue *

fq

)

Free the queue and all queued frames.

Definition at line 53 of file framequeue.c.

Referenced by avfilter_link_free().

int ff_framequeue_add	(	FFFrameQueue *	fq,
		AVFrame *	frame
	)

Add a frame.

Returns

>=0 or an AVERROR code.

Definition at line 63 of file framequeue.c.

Referenced by ff_filter_frame().

AVFrame* ff_framequeue_take

(

FFFrameQueue *

fq

)

Take the first frame in the queue.

Must not be used with empty queues.

Definition at line 98 of file framequeue.c.

Referenced by ff_framequeue_free(), ff_inlink_consume_frame(), and take_samples().

AVFrame* ff_framequeue_peek	(	FFFrameQueue *	fq,
		size_t	idx
	)

Access a frame in the queue, without removing it.

The first frame is numbered 0; the designated frame must exist.

Definition at line 115 of file framequeue.c.

Referenced by ff_inlink_consume_frame(), and take_samples().

void ff_framequeue_skip_samples	(	FFFrameQueue *	fq,
		size_t	samples,
		AVRational	time_base
	)

Skip samples from the first frame in the queue.

This function must be used when the first frame was accessed using ff_framequeue_peek() and samples were consumed from it. It adapts the data pointers and timestamps of the head frame to account for the skipped samples.

Definition at line 126 of file framequeue.c.

Referenced by take_samples().