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Originally committed as revision 18835 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2009-05-15 04:44:37 +00:00
parent 58a830239d
commit df099252bb
1 changed files with 24 additions and 24 deletions
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48
libavformat/mxfenc.c
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@ -1316,33 +1316,33 @@ static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt
break; break;
} }
} else if (c == 0x1b8) { // gop } else if (c == 0x1b8) { // gop
if (pkt->data[i+4]>>6 & 0x01) // closed if (pkt->data[i+4]>>6 & 0x01) // closed
*flags |= 0x80; // random access *flags |= 0x80; // random access
if (!mxf->header_written) { if (!mxf->header_written) {
unsigned hours = (pkt->data[i+1]>>2) & 0x1f; unsigned hours = (pkt->data[i+1]>>2) & 0x1f;
unsigned minutes = ((pkt->data[i+1] & 0x03) << 4) | (pkt->data[i+2]>>4); unsigned minutes = ((pkt->data[i+1] & 0x03) << 4) | (pkt->data[i+2]>>4);
unsigned seconds = ((pkt->data[i+2] & 0x07) << 3) | (pkt->data[i+3]>>5); unsigned seconds = ((pkt->data[i+2] & 0x07) << 3) | (pkt->data[i+3]>>5);
unsigned frames = ((pkt->data[i+3] & 0x1f) << 1) | (pkt->data[i+4]>>7); unsigned frames = ((pkt->data[i+3] & 0x1f) << 1) | (pkt->data[i+4]>>7);
mxf->timecode_drop_frame = !!(pkt->data[i+1] & 0x80); mxf->timecode_drop_frame = !!(pkt->data[i+1] & 0x80);
mxf->timecode_start = (hours*3600 + minutes*60 + seconds) * mxf->timecode_start = (hours*3600 + minutes*60 + seconds) *
mxf->timecode_base + frames; mxf->timecode_base + frames;
if (mxf->timecode_drop_frame) { if (mxf->timecode_drop_frame) {
unsigned tminutes = 60 * hours + minutes; unsigned tminutes = 60 * hours + minutes;
mxf->timecode_start -= 2 * (tminutes - tminutes / 10); mxf->timecode_start -= 2 * (tminutes - tminutes / 10);
}
av_log(s, AV_LOG_DEBUG, "frame %d %d:%d:%d%c%d\n", mxf->timecode_start,
hours, minutes, seconds, mxf->timecode_drop_frame ? ';':':', frames);
} }
av_log(s, AV_LOG_DEBUG, "frame %d %d:%d:%d%c%d\n", mxf->timecode_start,
hours, minutes, seconds, mxf->timecode_drop_frame ? ';':':', frames);
}
} else if (c == 0x1b3) { // seq } else if (c == 0x1b3) { // seq
*flags |= 0x40; *flags |= 0x40;
switch ((pkt->data[i+4]>>4) & 0xf) { switch ((pkt->data[i+4]>>4) & 0xf) {
case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break; case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break; case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
case 4: sc->aspect_ratio = (AVRational){221,100}; break; case 4: sc->aspect_ratio = (AVRational){221,100}; break;
default: default:
av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den, av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
st->codec->width, st->codec->height, 1024*1024); st->codec->width, st->codec->height, 1024*1024);
} }
} else if (c == 0x100) { // pic } else if (c == 0x100) { // pic
int pict_type = (pkt->data[i+2]>>3) & 0x07; int pict_type = (pkt->data[i+2]>>3) & 0x07;
if (pict_type == 2) { // P frame if (pict_type == 2) { // P frame