buffer sink More...
#include "libavutil/audio_fifo.h"
#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/mathematics.h"
#include "audio.h"
#include "avfilter.h"
#include "buffersink.h"
#include "internal.h"
Go to the source code of this file.
Data Structures | |
struct | BufferSinkContext |
Functions | |
static av_cold void | uninit (AVFilterContext *ctx) |
static int | filter_frame (AVFilterLink *link, AVFilterBufferRef *buf) |
int | av_buffersink_read (AVFilterContext *ctx, AVFilterBufferRef **buf) |
Get a buffer with filtered data from sink and put it in buf. | |
static int | read_from_fifo (AVFilterContext *ctx, AVFilterBufferRef **pbuf, int nb_samples) |
int | av_buffersink_read_samples (AVFilterContext *ctx, AVFilterBufferRef **pbuf, int nb_samples) |
Same as av_buffersink_read, but with the ability to specify the number of samples read. |
Variables | |
static const AVFilterPad | avfilter_vsink_buffer_inputs [] |
AVFilter | avfilter_vsink_buffer |
static const AVFilterPad | avfilter_asink_abuffer_inputs [] |
AVFilter | avfilter_asink_abuffer |
buffer sink
Definition in file buffersink.c.
int av_buffersink_read | ( | AVFilterContext * | ctx, |
AVFilterBufferRef ** | buf | ||
) |
Get a buffer with filtered data from sink and put it in buf.
ctx | pointer to a context of a buffersink or abuffersink AVFilter. |
buf | pointer to the buffer will be written here if buf is non-NULL. buf must be freed by the caller using avfilter_unref_buffer(). Buf may also be NULL to query whether a buffer is ready to be output. |
Definition at line 61 of file buffersink.c.
Referenced by av_buffersink_read_samples(), poll_filter(), and video_thread().
int av_buffersink_read_samples | ( | AVFilterContext * | ctx, |
AVFilterBufferRef ** | buf, | ||
int | nb_samples | ||
) |
Same as av_buffersink_read, but with the ability to specify the number of samples read.
This function is less efficient than av_buffersink_read(), because it copies the data around.
ctx | pointer to a context of the abuffersink AVFilter. |
buf | pointer to the buffer will be written here if buf is non-NULL. buf must be freed by the caller using avfilter_unref_buffer(). buf will contain exactly nb_samples audio samples, except at the end of stream, when it can contain less than nb_samples. Buf may also be NULL to query whether a buffer is ready to be output. |
Definition at line 102 of file buffersink.c.
Referenced by poll_filter().
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Definition at line 51 of file buffersink.c.
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Definition at line 82 of file buffersink.c.
Referenced by av_buffersink_read_samples().
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Definition at line 43 of file buffersink.c.
AVFilter avfilter_asink_abuffer |
Definition at line 174 of file buffersink.c.
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Definition at line 163 of file buffersink.c.
AVFilter avfilter_vsink_buffer |
Definition at line 153 of file buffersink.c.
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Definition at line 142 of file buffersink.c.