buffersrc.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_BUFFERSRC_H
#define AVFILTER_BUFFERSRC_H

#include "avfilter.h"

enum {

    AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT = 1,

    AV_BUFFERSRC_FLAG_PUSH = 4,

    AV_BUFFERSRC_FLAG_KEEP_REF = 8,

};

unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src);

typedef struct AVBufferSrcParameters {
    int format;
    AVRational time_base;

    int width, height;

    AVRational sample_aspect_ratio;

    AVRational frame_rate;

    AVBufferRef *hw_frames_ctx;

    int sample_rate;

    uint64_t channel_layout;
} AVBufferSrcParameters;

AVBufferSrcParameters *av_buffersrc_parameters_alloc(void);

int av_buffersrc_parameters_set(AVFilterContext *ctx, AVBufferSrcParameters *param);

av_warn_unused_result
int av_buffersrc_write_frame(AVFilterContext *ctx, const AVFrame *frame);

av_warn_unused_result
int av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame);

av_warn_unused_result
int av_buffersrc_add_frame_flags(AVFilterContext *buffer_src,
                                 AVFrame *frame, int flags);

int av_buffersrc_close(AVFilterContext *ctx, int64_t pts, unsigned flags);

#endif /* AVFILTER_BUFFERSRC_H */