/*

 * 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

 */

#include "config.h"

#include <stddef.h>

#include <stdint.h>

#include <string.h>

#include "libavutil/error.h"

#include "libavutil/mem.h"

#include "adts_header.h"

#include "adts_parser.h"

int av_adts_header_parse(const uint8_t *buf, uint32_t *samples, uint8_t *frames)

{

#if CONFIG_ADTS_HEADER

    uint8_t tmpbuf[AV_AAC_ADTS_HEADER_SIZE + AV_INPUT_BUFFER_PADDING_SIZE];

    AACADTSHeaderInfo hdr;

    int err;

    if (!buf)

        return AVERROR(EINVAL);

    memcpy(tmpbuf, buf, AV_AAC_ADTS_HEADER_SIZE);

    err = ff_adts_header_parse_buf(tmpbuf, &hdr);

    if (err < 0)

        return err;

    *samples = hdr.samples;

    *frames  = hdr.num_aac_frames;

    return 0;

#else

    return AVERROR(ENOSYS);

#endif

}

int avpriv_adts_header_parse(AACADTSHeaderInfo **phdr, const uint8_t *buf, size_t size)

{

#if CONFIG_ADTS_HEADER

    int ret = 0;

    int allocated = 0;

    if (!phdr || !buf || size < AV_AAC_ADTS_HEADER_SIZE)

        return AVERROR_INVALIDDATA;

    if (!*phdr) {

        allocated = 1;

        *phdr = av_mallocz(sizeof(AACADTSHeaderInfo));

    }

    if (!*phdr)

        return AVERROR(ENOMEM);

    ret = ff_adts_header_parse_buf(buf, *phdr);

    if (ret < 0) {

        if (allocated)

            av_freep(phdr);

        return ret;

    }

    return 0;

#else

    return AVERROR(ENOSYS);

#endif

}