tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

adts_parser.c (2080B)

      1 /*
      2 * This file is part of FFmpeg.
      3 *
      4 * FFmpeg is free software; you can redistribute it and/or
      5 * modify it under the terms of the GNU Lesser General Public
      6 * License as published by the Free Software Foundation; either
      7 * version 2.1 of the License, or (at your option) any later version.
      8 *
      9 * FFmpeg is distributed in the hope that it will be useful,
     10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12 * Lesser General Public License for more details.
     13 *
     14 * You should have received a copy of the GNU Lesser General Public
     15 * License along with FFmpeg; if not, write to the Free Software
     16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     17 */
     18 
     19 #include "config.h"
     20 
     21 #include <stddef.h>
     22 #include <stdint.h>
     23 #include <string.h>
     24 
     25 #include "libavutil/error.h"
     26 #include "libavutil/mem.h"
     27 #include "adts_header.h"
     28 #include "adts_parser.h"
     29 
     30 int av_adts_header_parse(const uint8_t *buf, uint32_t *samples, uint8_t *frames)
     31 {
     32 #if CONFIG_ADTS_HEADER
     33    uint8_t tmpbuf[AV_AAC_ADTS_HEADER_SIZE + AV_INPUT_BUFFER_PADDING_SIZE];
     34    AACADTSHeaderInfo hdr;
     35    int err;
     36    if (!buf)
     37        return AVERROR(EINVAL);
     38    memcpy(tmpbuf, buf, AV_AAC_ADTS_HEADER_SIZE);
     39    err = ff_adts_header_parse_buf(tmpbuf, &hdr);
     40    if (err < 0)
     41        return err;
     42    *samples = hdr.samples;
     43    *frames  = hdr.num_aac_frames;
     44    return 0;
     45 #else
     46    return AVERROR(ENOSYS);
     47 #endif
     48 }
     49 
     50 int avpriv_adts_header_parse(AACADTSHeaderInfo **phdr, const uint8_t *buf, size_t size)
     51 {
     52 #if CONFIG_ADTS_HEADER
     53    int ret = 0;
     54    int allocated = 0;
     55 
     56    if (!phdr || !buf || size < AV_AAC_ADTS_HEADER_SIZE)
     57        return AVERROR_INVALIDDATA;
     58 
     59    if (!*phdr) {
     60        allocated = 1;
     61        *phdr = av_mallocz(sizeof(AACADTSHeaderInfo));
     62    }
     63    if (!*phdr)
     64        return AVERROR(ENOMEM);
     65 
     66    ret = ff_adts_header_parse_buf(buf, *phdr);
     67    if (ret < 0) {
     68        if (allocated)
     69            av_freep(phdr);
     70        return ret;
     71    }
     72 
     73    return 0;
     74 #else
     75    return AVERROR(ENOSYS);
     76 #endif
     77 }