*/
/**
- * @file mtv.c
+ * @file libavformat/mtv.c
* MTV demuxer.
*/
typedef struct MTVDemuxContext {
- unsigned int file_size; ///< filesize, not always right
- unsigned int segments; ///< number of 512 byte segments
- unsigned int audio_identifier; ///< 'MP3' on all files I have seen
- unsigned int audio_br; ///< bitrate of audio chanel (mp3)
- unsigned int img_colorfmt; ///< frame colorfmt rgb 565/555
- unsigned int img_bpp; ///< frame bits per pixel
- unsigned int img_width; //
- unsigned int img_height; //
- unsigned int img_segment_size; ///< size of image segment
- unsigned int video_fps; //
- unsigned int full_segment_size;
+ unsigned int file_size; ///< filesize, not always right
+ unsigned int segments; ///< number of 512 byte segments
+ unsigned int audio_identifier; ///< 'MP3' on all files I have seen
+ unsigned int audio_br; ///< bitrate of audio chanel (mp3)
+ unsigned int img_colorfmt; ///< frame colorfmt rgb 565/555
+ unsigned int img_bpp; ///< frame bits per pixel
+ unsigned int img_width; //
+ unsigned int img_height; //
+ unsigned int img_segment_size; ///< size of image segment
+ unsigned int video_fps; //
+ unsigned int full_segment_size;
} MTVDemuxContext;
static int mtv_probe(AVProbeData *p)
{
/* Magic is 'AMV' */
-
if(*(p->buf) != 'A' || *(p->buf+1) != 'M' || *(p->buf+2) != 'V')
return 0;
static int mtv_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
- MTVDemuxContext *mtv = s->priv_data;
- ByteIOContext *pb = s->pb;
- AVStream *st;
- unsigned int audio_subsegments;
-
+ MTVDemuxContext *mtv = s->priv_data;
+ ByteIOContext *pb = s->pb;
+ AVStream *st;
+ unsigned int audio_subsegments;
url_fskip(pb, 3);
mtv->file_size = get_le32(pb);
mtv->img_segment_size;
mtv->video_fps = (mtv->audio_br / 4) / audio_subsegments;
- /* FIXME Add sanity check here */
+ // FIXME Add sanity check here
- /* all systems go! init decoders */
+ // all systems go! init decoders
- /* video - raw rgb565 */
+ // video - raw rgb565
st = av_new_stream(s, VIDEO_SID);
if(!st)
st->codec->codec_tag = MKTAG('R', 'G', 'B', mtv->img_bpp);
st->codec->width = mtv->img_width;
st->codec->height = mtv->img_height;
- st->codec->bits_per_sample = mtv->img_bpp;
+ st->codec->bits_per_coded_sample = mtv->img_bpp;
st->codec->sample_rate = mtv->video_fps;
- /* audio - mp3 */
+ // audio - mp3
st = av_new_stream(s, AUDIO_SID);
if(!st)
st->codec->bit_rate = mtv->audio_br;
st->need_parsing = AVSTREAM_PARSE_FULL;
- /* Jump over header */
+ // Jump over header
if(url_fseek(pb, MTV_HEADER_SIZE, SEEK_SET) != MTV_HEADER_SIZE)
return AVERROR(EIO);