mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-20 22:41:11 +00:00
124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg 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.
|
|
*
|
|
* FFmpeg 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 FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVFILTER_INTERNAL_H
|
|
#define AVFILTER_INTERNAL_H
|
|
|
|
/**
|
|
* @file
|
|
* internal API functions
|
|
*/
|
|
|
|
#include "avfilter.h"
|
|
#include "avfiltergraph.h"
|
|
|
|
#define POOL_SIZE 32
|
|
typedef struct AVFilterPool {
|
|
AVFilterBufferRef *pic[POOL_SIZE];
|
|
int count;
|
|
} AVFilterPool;
|
|
|
|
typedef struct AVFilterCommand {
|
|
double time;
|
|
char *command, *arg;
|
|
int flags;
|
|
struct AVFilterCommand *next;
|
|
} AVFilterCommand;
|
|
|
|
/**
|
|
* Check for the validity of graph.
|
|
*
|
|
* A graph is considered valid if all its input and output pads are
|
|
* connected.
|
|
*
|
|
* @return 0 in case of success, a negative value otherwise
|
|
*/
|
|
int ff_avfilter_graph_check_validity(AVFilterGraph *graphctx, AVClass *log_ctx);
|
|
|
|
/**
|
|
* Configure all the links of graphctx.
|
|
*
|
|
* @return 0 in case of success, a negative value otherwise
|
|
*/
|
|
int ff_avfilter_graph_config_links(AVFilterGraph *graphctx, AVClass *log_ctx);
|
|
|
|
/**
|
|
* Configure the formats of all the links in the graph.
|
|
*/
|
|
int ff_avfilter_graph_config_formats(AVFilterGraph *graphctx, AVClass *log_ctx);
|
|
|
|
/** default handler for freeing audio/video buffer when there are no references left */
|
|
void ff_avfilter_default_free_buffer(AVFilterBuffer *buf);
|
|
|
|
/** Tell is a format is contained in the provided list terminated by -1. */
|
|
int ff_fmt_is_in(int fmt, const int *fmts);
|
|
|
|
/* Functions to parse audio format arguments */
|
|
|
|
/**
|
|
* Parse a pixel format.
|
|
*
|
|
* @param ret pixel format pointer to where the value should be written
|
|
* @param arg string to parse
|
|
* @param log_ctx log context
|
|
* @return 0 in case of success, a negative AVERROR code on error
|
|
*/
|
|
int ff_parse_pixel_format(enum PixelFormat *ret, const char *arg, void *log_ctx);
|
|
|
|
/**
|
|
* Parse a sample rate.
|
|
*
|
|
* @param ret unsigned integer pointer to where the value should be written
|
|
* @param arg string to parse
|
|
* @param log_ctx log context
|
|
* @return 0 in case of success, a negative AVERROR code on error
|
|
*/
|
|
int ff_parse_sample_rate(unsigned *ret, const char *arg, void *log_ctx);
|
|
|
|
/**
|
|
* Parse a sample format name or a corresponding integer representation.
|
|
*
|
|
* @param ret integer pointer to where the value should be written
|
|
* @param arg string to parse
|
|
* @param log_ctx log context
|
|
* @return 0 in case of success, a negative AVERROR code on error
|
|
*/
|
|
int ff_parse_sample_format(int *ret, const char *arg, void *log_ctx);
|
|
|
|
/**
|
|
* Parse a channel layout or a corresponding integer representation.
|
|
*
|
|
* @param ret 64bit integer pointer to where the value should be written.
|
|
* @param arg string to parse
|
|
* @param log_ctx log context
|
|
* @return 0 in case of success, a negative AVERROR code on error
|
|
*/
|
|
int ff_parse_channel_layout(int64_t *ret, const char *arg, void *log_ctx);
|
|
|
|
/**
|
|
* Parse a packing format or a corresponding integer representation.
|
|
*
|
|
* @param ret integer pointer to where the value should be written
|
|
* @param arg string to parse
|
|
* @param log_ctx log context
|
|
* @return 0 in case of success, a negative AVERROR code on error
|
|
*/
|
|
int ff_parse_packing_format(int *ret, const char *arg, void *log_ctx);
|
|
|
|
#endif /* AVFILTER_INTERNAL_H */
|