* http://www.csse.monash.edu.au/~timf/
*/
+#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
#include "avformat.h"
#include "internal.h"
typedef struct RoqDemuxContext {
+ int frame_rate;
int width;
int height;
int audio_channels;
return AVPROBE_SCORE_MAX;
}
-static int roq_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
+static int roq_read_header(AVFormatContext *s)
{
RoqDemuxContext *roq = s->priv_data;
AVIOContext *pb = s->pb;
- int framerate;
- AVStream *st;
unsigned char preamble[RoQ_CHUNK_PREAMBLE_SIZE];
/* get the main header */
if (avio_read(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE) !=
RoQ_CHUNK_PREAMBLE_SIZE)
return AVERROR(EIO);
- framerate = AV_RL16(&preamble[6]);
+ roq->frame_rate = AV_RL16(&preamble[6]);
/* init private context parameters */
roq->width = roq->height = roq->audio_channels = roq->video_pts =
roq->audio_frame_count = 0;
roq->audio_stream_index = -1;
+ roq->video_stream_index = -1;
- st = avformat_new_stream(s, NULL);
- if (!st)
- return AVERROR(ENOMEM);
- avpriv_set_pts_info(st, 63, 1, framerate);
- roq->video_stream_index = st->index;
- st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- st->codec->codec_id = CODEC_ID_ROQ;
- st->codec->codec_tag = 0; /* no fourcc */
+ s->ctx_flags |= AVFMTCTX_NOHEADER;
return 0;
}
switch (chunk_type) {
case RoQ_INFO:
- if (!roq->width || !roq->height) {
- AVStream *st = s->streams[roq->video_stream_index];
+ if (roq->video_stream_index == -1) {
+ AVStream *st = avformat_new_stream(s, NULL);
+ if (!st)
+ return AVERROR(ENOMEM);
+ avpriv_set_pts_info(st, 63, 1, roq->frame_rate);
+ roq->video_stream_index = st->index;
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = AV_CODEC_ID_ROQ;
+ st->codec->codec_tag = 0; /* no fourcc */
+
if (avio_read(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE) != RoQ_CHUNK_PREAMBLE_SIZE)
return AVERROR(EIO);
st->codec->width = roq->width = AV_RL16(preamble);
break;
case RoQ_QUAD_CODEBOOK:
+ if (roq->video_stream_index < 0)
+ return AVERROR_INVALIDDATA;
/* packet needs to contain both this codebook and next VQ chunk */
codebook_offset = avio_tell(pb) - RoQ_CHUNK_PREAMBLE_SIZE;
codebook_size = chunk_size;
avpriv_set_pts_info(st, 32, 1, RoQ_AUDIO_SAMPLE_RATE);
roq->audio_stream_index = st->index;
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codec->codec_id = CODEC_ID_ROQ_DPCM;
+ st->codec->codec_id = AV_CODEC_ID_ROQ_DPCM;
st->codec->codec_tag = 0; /* no tag */
- st->codec->channels = roq->audio_channels = chunk_type == RoQ_SOUND_STEREO ? 2 : 1;
+ if (chunk_type == RoQ_SOUND_STEREO) {
+ st->codec->channels = 2;
+ st->codec->channel_layout = AV_CH_LAYOUT_STEREO;
+ } else {
+ st->codec->channels = 1;
+ st->codec->channel_layout = AV_CH_LAYOUT_MONO;
+ }
+ roq->audio_channels = st->codec->channels;
st->codec->sample_rate = RoQ_AUDIO_SAMPLE_RATE;
st->codec->bits_per_coded_sample = 16;
st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
st->codec->block_align = st->codec->channels * st->codec->bits_per_coded_sample;
}
case RoQ_QUAD_VQ:
+ if (chunk_type == RoQ_QUAD_VQ) {
+ if (roq->video_stream_index < 0)
+ return AVERROR_INVALIDDATA;
+ }
+
/* load up the packet */
if (av_new_packet(pkt, chunk_size + RoQ_CHUNK_PREAMBLE_SIZE))
return AVERROR(EIO);
}
AVInputFormat ff_roq_demuxer = {
- .name = "RoQ",
- .long_name = NULL_IF_CONFIG_SMALL("id RoQ format"),
+ .name = "roq",
+ .long_name = NULL_IF_CONFIG_SMALL("id RoQ"),
.priv_data_size = sizeof(RoqDemuxContext),
.read_probe = roq_probe,
.read_header = roq_read_header,