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386aee6864
A list of formats may have been dynamically created by the calling code, and thus should not be referenced by the sink buffer context. Avoid possible invalid data reference.
137 lines
4.2 KiB
C
137 lines
4.2 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFILTER_INTERNAL_H
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#define AVFILTER_INTERNAL_H
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/**
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* @file
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* internal API functions
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*/
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#include "avfilter.h"
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#include "avfiltergraph.h"
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#define POOL_SIZE 32
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typedef struct AVFilterPool {
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AVFilterBufferRef *pic[POOL_SIZE];
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int count;
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} AVFilterPool;
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typedef struct AVFilterCommand {
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double time; ///< time expressed in seconds
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char *command; ///< command
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char *arg; ///< optional argument for the command
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int flags;
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struct AVFilterCommand *next;
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} AVFilterCommand;
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/**
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* Check for the validity of graph.
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*
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* A graph is considered valid if all its input and output pads are
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* connected.
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*
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* @return 0 in case of success, a negative value otherwise
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*/
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int ff_avfilter_graph_check_validity(AVFilterGraph *graphctx, AVClass *log_ctx);
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/**
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* Configure all the links of graphctx.
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*
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* @return 0 in case of success, a negative value otherwise
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*/
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int ff_avfilter_graph_config_links(AVFilterGraph *graphctx, AVClass *log_ctx);
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/**
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* Configure the formats of all the links in the graph.
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*/
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int ff_avfilter_graph_config_formats(AVFilterGraph *graphctx, AVClass *log_ctx);
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/** default handler for freeing audio/video buffer when there are no references left */
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void ff_avfilter_default_free_buffer(AVFilterBuffer *buf);
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/** Tell is a format is contained in the provided list terminated by -1. */
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int ff_fmt_is_in(int fmt, const int *fmts);
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/**
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* Return a copy of a list of integers terminated by -1, or NULL in
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* case of copy failure.
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*/
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int *ff_copy_int_list(const int * const list);
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/**
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* Return a copy of a list of 64-bit integers, or NULL in case of
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* copy failure.
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*/
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int64_t *ff_copy_int64_list(const int64_t * const list);
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/* Functions to parse audio format arguments */
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/**
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* Parse a pixel format.
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*
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* @param ret pixel format pointer to where the value should be written
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* @param arg string to parse
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* @param log_ctx log context
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* @return 0 in case of success, a negative AVERROR code on error
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*/
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int ff_parse_pixel_format(enum PixelFormat *ret, const char *arg, void *log_ctx);
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/**
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* Parse a sample rate.
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*
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* @param ret unsigned integer pointer to where the value should be written
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* @param arg string to parse
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* @param log_ctx log context
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* @return 0 in case of success, a negative AVERROR code on error
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*/
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int ff_parse_sample_rate(int *ret, const char *arg, void *log_ctx);
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/**
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* Parse a sample format name or a corresponding integer representation.
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*
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* @param ret integer pointer to where the value should be written
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* @param arg string to parse
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* @param log_ctx log context
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* @return 0 in case of success, a negative AVERROR code on error
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*/
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int ff_parse_sample_format(int *ret, const char *arg, void *log_ctx);
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/**
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* Parse a channel layout or a corresponding integer representation.
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*
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* @param ret 64bit integer pointer to where the value should be written.
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* @param arg string to parse
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* @param log_ctx log context
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* @return 0 in case of success, a negative AVERROR code on error
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*/
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int ff_parse_channel_layout(int64_t *ret, const char *arg, void *log_ctx);
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/**
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* Parse a packing format or a corresponding integer representation.
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*
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* @param ret integer pointer to where the value should be written
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* @param arg string to parse
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* @param log_ctx log context
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* @return 0 in case of success, a negative AVERROR code on error
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*/
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int ff_parse_packing_format(int *ret, const char *arg, void *log_ctx);
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#endif /* AVFILTER_INTERNAL_H */
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