libavfilter/audio.h

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/*
 * Copyright (c) Stefano Sabatini | stefasab at gmail.com
 * Copyright (c) S.N. Hemanth Meenakshisundaram | smeenaks at ucsd.edu
 *
 * 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_AUDIO_H
#define AVFILTER_AUDIO_H

#include "avfilter.h"
#include "internal.h"

static const enum AVSampleFormat ff_packed_sample_fmts_array[] = {
    AV_SAMPLE_FMT_U8,
    AV_SAMPLE_FMT_S16,
    AV_SAMPLE_FMT_S32,
    AV_SAMPLE_FMT_FLT,
    AV_SAMPLE_FMT_DBL,
    AV_SAMPLE_FMT_NONE
};

static const enum AVSampleFormat ff_planar_sample_fmts_array[] = {
    AV_SAMPLE_FMT_U8P,
    AV_SAMPLE_FMT_S16P,
    AV_SAMPLE_FMT_S32P,
    AV_SAMPLE_FMT_FLTP,
    AV_SAMPLE_FMT_DBLP,
    AV_SAMPLE_FMT_NONE
};

AVFilterBufferRef *ff_default_get_audio_buffer(AVFilterLink *link, int perms,
                                                     int nb_samples);

AVFilterBufferRef *ff_null_get_audio_buffer(AVFilterLink *link, int perms,
                                                  int nb_samples);

AVFilterBufferRef *ff_get_audio_buffer(AVFilterLink *link, int perms,
                                             int nb_samples);

int ff_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref);

int ff_filter_samples_framed(AVFilterLink *link,
                             AVFilterBufferRef *samplesref);

#endif /* AVFILTER_AUDIO_H */

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