* Copyright (c) 2003 Fabrice Bellard
* Copyright (c) 2003 Michael Niedermayer
*
- * 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
*/
+#include "libavutil/common.h"
#include "parser.h"
#include "aac_ac3_parser.h"
*poutbuf_size = buf_size;
/* update codec info */
- avctx->sample_rate = s->sample_rate;
if(s->codec_id)
avctx->codec_id = s->codec_id;
- /* allow downmixing to stereo (or mono for AC-3) */
- if(avctx->request_channels > 0 &&
- avctx->request_channels < s->channels &&
- (avctx->request_channels <= 2 ||
- (avctx->request_channels == 1 &&
- (avctx->codec_id == CODEC_ID_AC3 ||
- avctx->codec_id == CODEC_ID_EAC3)))) {
- avctx->channels = avctx->request_channels;
- } else {
- if (avctx->codec_id != CODEC_ID_AAC || s->channels) {
- avctx->channels = s->channels;
- avctx->channel_layout = s->channel_layout;
+ /* Due to backwards compatible HE-AAC the sample rate, channel count,
+ and total number of samples found in an AAC ADTS header are not
+ reliable. Bit rate is still accurate because the total frame duration in
+ seconds is still correct (as is the number of bits in the frame). */
+ if (avctx->codec_id != AV_CODEC_ID_AAC) {
+ avctx->sample_rate = s->sample_rate;
+
+ /* allow downmixing to stereo (or mono for AC-3) */
+ if(avctx->request_channels > 0 &&
+ avctx->request_channels < s->channels &&
+ (avctx->request_channels <= 2 ||
+ (avctx->request_channels == 1 &&
+ (avctx->codec_id == AV_CODEC_ID_AC3 ||
+ avctx->codec_id == AV_CODEC_ID_EAC3)))) {
+ avctx->channels = avctx->request_channels;
+ } else {
+ avctx->channels = s->channels;
+ avctx->channel_layout = s->channel_layout;
}
+ s1->duration = s->samples;
+ avctx->audio_service_type = s->service_type;
}
+
avctx->bit_rate = s->bit_rate;
- avctx->frame_size = s->samples;
return i;
}