mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-30 03:12:08 +00:00
63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
/*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVFILTER_BUFFERSINK_H
|
|
#define AVFILTER_BUFFERSINK_H
|
|
|
|
/**
|
|
* @file
|
|
* memory buffer sink API
|
|
*/
|
|
|
|
#include "avfilter.h"
|
|
|
|
/**
|
|
* Get a buffer with filtered data from sink and put it in buf.
|
|
*
|
|
* @param ctx pointer to a context of a buffersink or abuffersink AVFilter.
|
|
* @param 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.
|
|
*
|
|
* @return >= 0 in case of success, a negative AVERROR code in case of
|
|
* failure.
|
|
*/
|
|
int av_buffersink_read(AVFilterContext *ctx, AVFilterBufferRef **buf);
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* @param ctx pointer to a context of the abuffersink AVFilter.
|
|
* @param 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.
|
|
*
|
|
* @warning do not mix this function with av_buffersink_read(). Use only one or
|
|
* the other with a single sink, not both.
|
|
*/
|
|
int av_buffersink_read_samples(AVFilterContext *ctx, AVFilterBufferRef **buf,
|
|
int nb_samples);
|
|
|
|
#endif /* AVFILTER_BUFFERSINK_H */
|