libavfilter/formats.h

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/*
 * 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_FORMATS_H
#define AVFILTER_FORMATS_H

#include "avfilter.h"

struct AVFilterFormats {
    unsigned format_count;      
    int *formats;               

    unsigned refcount;          
    struct AVFilterFormats ***refs; 
};

typedef struct AVFilterChannelLayouts {
    uint64_t *channel_layouts;  
    int    nb_channel_layouts;  

    unsigned refcount;          
    struct AVFilterChannelLayouts ***refs; 
} AVFilterChannelLayouts;

AVFilterChannelLayouts *ff_merge_channel_layouts(AVFilterChannelLayouts *a,
                                                 AVFilterChannelLayouts *b);
AVFilterFormats *ff_merge_samplerates(AVFilterFormats *a,
                                      AVFilterFormats *b);

AVFilterChannelLayouts *ff_all_channel_layouts(void);
AVFilterFormats *ff_all_samplerates(void);

AVFilterChannelLayouts *avfilter_make_format64_list(const int64_t *fmts);


void ff_set_common_channel_layouts(AVFilterContext *ctx,
                                   AVFilterChannelLayouts *layouts);
void ff_set_common_samplerates(AVFilterContext *ctx,
                               AVFilterFormats *samplerates);

void ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats);

int ff_add_channel_layout(AVFilterChannelLayouts **l, uint64_t channel_layout);

void ff_channel_layouts_ref(AVFilterChannelLayouts *f,
                            AVFilterChannelLayouts **ref);

void ff_channel_layouts_unref(AVFilterChannelLayouts **ref);

void ff_channel_layouts_changeref(AVFilterChannelLayouts **oldref,
                                  AVFilterChannelLayouts **newref);

int ff_default_query_formats(AVFilterContext *ctx);


AVFilterFormats *ff_make_format_list(const int *fmts);

int ff_add_format(AVFilterFormats **avff, int64_t fmt);

AVFilterFormats *ff_all_formats(enum AVMediaType type);

AVFilterFormats *ff_planar_sample_fmts(void);

AVFilterFormats *ff_merge_formats(AVFilterFormats *a, AVFilterFormats *b);

void ff_formats_ref(AVFilterFormats *formats, AVFilterFormats **ref);

void ff_formats_unref(AVFilterFormats **ref);

void ff_formats_changeref(AVFilterFormats **oldref, AVFilterFormats **newref);

#endif /* AVFILTER_FORMATS_H */

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