/*
* ADTS muxer.
* Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@smartjog.com>
- * Mans Rullgard <mru@inprovide.com>
+ * Mans Rullgard <mans@mansr.com>
*
* This file is part of FFmpeg.
*
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
+#include "libavcodec/bitstream.h"
+#include "libavcodec/internal.h"
#include "avformat.h"
-#include "bitstream.h"
#define ADTS_HEADER_SIZE 7
int channel_conf;
} ADTSContext;
-static int decode_extradata(ADTSContext *adts, uint8_t *buf, int size)
+static int decode_extradata(AVFormatContext *s, ADTSContext *adts, uint8_t *buf, int size)
{
GetBitContext gb;
adts->sample_rate_index = get_bits(&gb, 4);
adts->channel_conf = get_bits(&gb, 4);
+ if (adts->objecttype > 3) {
+ av_log(s, AV_LOG_ERROR, "MPEG-4 AOT %d is not allowed in ADTS\n", adts->objecttype+1);
+ return -1;
+ }
+ if (adts->sample_rate_index == 15) {
+ av_log(s, AV_LOG_ERROR, "Escape sample rate index illegal in ADTS\n");
+ return -1;
+ }
+ if (adts->channel_conf == 0) {
+ ff_log_missing_feature(s, "PCE based channel configuration", 0);
+ return -1;
+ }
+
adts->write_adts = 1;
return 0;
ADTSContext *adts = s->priv_data;
AVCodecContext *avc = s->streams[0]->codec;
- if(avc->extradata_size > 0)
- decode_extradata(adts, avc->extradata, avc->extradata_size);
+ if(avc->extradata_size > 0 &&
+ decode_extradata(s, adts, avc->extradata, avc->extradata_size) < 0)
+ return -1;
return 0;
}
put_bits(&pb, 2, 0); /* number_of_raw_data_blocks_in_frame */
flush_put_bits(&pb);
- put_buffer(&s->pb, buf, ADTS_HEADER_SIZE);
-
- return 0;
-}
+ put_buffer(s->pb, buf, ADTS_HEADER_SIZE);
-static int adts_write_trailer(AVFormatContext *s)
-{
return 0;
}
static int adts_write_packet(AVFormatContext *s, AVPacket *pkt)
{
ADTSContext *adts = s->priv_data;
- ByteIOContext *pb = &s->pb;
+ ByteIOContext *pb = s->pb;
if (!pkt->size)
return 0;
AVOutputFormat adts_muxer = {
"adts",
- "ADTS AAC",
+ NULL_IF_CONFIG_SMALL("ADTS AAC"),
"audio/aac",
"aac",
sizeof(ADTSContext),
CODEC_ID_NONE,
adts_write_header,
adts_write_packet,
- adts_write_trailer,
};