libavcodec/adts_parser.c
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 /*
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  * This file is part of FFmpeg.
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  *
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  * FFmpeg is free software; you can redistribute it and/or
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  * 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.
  *
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  * FFmpeg is distributed in the hope that it will be useful,
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  * 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
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  * License along with FFmpeg; if not, write to the Free Software
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  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "config.h"
 
 #include <stddef.h>
 #include <stdint.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
 }