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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
*/
#include "config.h"
#include <stddef.h>
#include <stdint.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
GetBitContext gb;
AACADTSHeaderInfo hdr;
int err = init_get_bits8(&gb, buf, AV_AAC_ADTS_HEADER_SIZE);
if (err < 0)
return err;
err = ff_adts_header_parse(&gb, &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;
GetBitContext gb;
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 = init_get_bits8(&gb, buf, AV_AAC_ADTS_HEADER_SIZE);
if (ret < 0) {
if (allocated)
av_freep(phdr);
return ret;
}
ret = ff_adts_header_parse(&gb, *phdr);
if (ret < 0) {
if (allocated)
av_freep(phdr);
return ret;
}
return 0;
#else
return AVERROR(ENOSYS);
#endif
}
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