* MP3 demuxer
* Copyright (c) 2003 Fabrice Bellard
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
MPADecodeHeader c;
int vbrtag_size = 0;
- v = get_be32(s->pb);
+ v = avio_rb32(s->pb);
if(ff_mpa_check_header(v) < 0)
return -1;
return -1;
/* Check for Xing / Info tag */
- url_fseek(s->pb, xing_offtbl[c.lsf == 1][c.nb_channels == 1], SEEK_CUR);
- v = get_be32(s->pb);
+ avio_skip(s->pb, xing_offtbl[c.lsf == 1][c.nb_channels == 1]);
+ v = avio_rb32(s->pb);
if(v == MKBETAG('X', 'i', 'n', 'g') || v == MKBETAG('I', 'n', 'f', 'o')) {
- v = get_be32(s->pb);
+ v = avio_rb32(s->pb);
if(v & 0x1)
- frames = get_be32(s->pb);
+ frames = avio_rb32(s->pb);
if(v & 0x2)
- size = get_be32(s->pb);
+ size = avio_rb32(s->pb);
}
/* Check for VBRI tag (always 32 bytes after end of mpegaudio header) */
- url_fseek(s->pb, base + 4 + 32, SEEK_SET);
- v = get_be32(s->pb);
+ avio_seek(s->pb, base + 4 + 32, SEEK_SET);
+ v = avio_rb32(s->pb);
if(v == MKBETAG('V', 'B', 'R', 'I')) {
/* Check tag version */
- if(get_be16(s->pb) == 1) {
+ if(avio_rb16(s->pb) == 1) {
/* skip delay and quality */
- url_fseek(s->pb, 4, SEEK_CUR);
- frames = get_be32(s->pb);
- size = get_be32(s->pb);
+ avio_skip(s->pb, 4);
+ frames = avio_rb32(s->pb);
+ size = avio_rb32(s->pb);
}
}
return -1;
/* Skip the vbr tag frame */
- url_fseek(s->pb, base + vbrtag_size, SEEK_SET);
+ avio_seek(s->pb, base + vbrtag_size, SEEK_SET);
spf = c.lsf ? 576 : 1152; /* Samples per frame, layer 3 */
if(frames)
// lcm of all mp3 sample rates
av_set_pts_info(st, 64, 1, 14112000);
- off = url_ftell(s->pb);
+ off = avio_tell(s->pb);
if (!av_metadata_get(s->metadata, "", NULL, AV_METADATA_IGNORE_SUFFIX))
ff_id3v1_read(s);
if (mp3_parse_vbr_tags(s, st, off) < 0)
- url_fseek(s->pb, off, SEEK_SET);
+ avio_seek(s->pb, off, SEEK_SET);
/* the parameters will be extracted from the compressed bitstream */
return 0;