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support streamed mov/mp4

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Originally committed as revision 11234 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2007-12-16 18:08:06 +00:00
parent 5cb4b82a17
commit 687f35f384
1 changed files with 7 additions and 5 deletions
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12
libavformat/mov.c
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@ -193,6 +193,8 @@ static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
offset_t start_pos = url_ftell(pb);
int64_t left;
err = (c->parse_table[i].func)(c, pb, a);
if (c->found_moov && c->found_mdat)
break;
left = a.size - url_ftell(pb) + start_pos;
if (left > 0) /* skip garbage at atom end */
url_fskip(pb, left);
@ -1511,9 +1513,10 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate, AV_TIME_BASE, msc->time_scale);
dprintf(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
if (!sample ||
((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
(FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts))) {
if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
(!url_is_streamed(s->pb) &&
((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
(FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))) {
sample = current_sample;
best_dts = dts;
sc = msc;
@ -1524,7 +1527,7 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
return -1;
/* must be done just before reading, to avoid infinite loop on sample */
sc->current_sample++;
if (sample->pos >= url_fsize(s->pb)) {
if (url_fseek(s->pb, sample->pos, SEEK_SET) != sample->pos) {
av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n", sc->ffindex, sample->pos);
return -1;
}
@ -1534,7 +1537,6 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
dprintf(s, "dv audio pkt size %d\n", pkt->size);
} else {
#endif
url_fseek(s->pb, sample->pos, SEEK_SET);
av_get_packet(s->pb, pkt, sample->size);
#ifdef CONFIG_DV_DEMUXER
if (mov->dv_demux) {