From e74527219668b720aefb7ecb79a44a8137aafa60 Mon Sep 17 00:00:00 2001 From: Baptiste Coudurier Date: Thu, 5 Nov 2009 07:30:53 +0000 Subject: compute dts shift with ctts value, cslg atom might be missing, fix #419 Originally committed as revision 20458 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/mov.c | 29 +++++------------------------ 1 file changed, 5 insertions(+), 24 deletions(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index dc0135d8bd..194d139387 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -1362,29 +1362,6 @@ static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOVAtom atom) return 0; } -static int mov_read_cslg(MOVContext *c, ByteIOContext *pb, MOVAtom atom) -{ - AVStream *st; - MOVStreamContext *sc; - - if (c->fc->nb_streams < 1) - return 0; - st = c->fc->streams[c->fc->nb_streams-1]; - sc = st->priv_data; - - get_be32(pb); // version + flags - - sc->dts_shift = get_be32(pb); - dprintf(c->fc, "dts shift %d\n", sc->dts_shift); - - get_be32(pb); // least dts to pts delta - get_be32(pb); // greatest dts to pts delta - get_be32(pb); // pts start - get_be32(pb); // pts end - - return 0; -} - static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOVAtom atom) { AVStream *st; @@ -1415,7 +1392,12 @@ static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOVAtom atom) sc->ctts_data[i].count = count; sc->ctts_data[i].duration= duration; + if (duration < 0) + sc->dts_shift = FFMAX(sc->dts_shift, -duration); } + + dprintf(c->fc, "dts shift %d\n", sc->shift); + return 0; } @@ -1978,7 +1960,6 @@ static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOVAtom atom) static const MOVParseTableEntry mov_default_parse_table[] = { { MKTAG('a','v','s','s'), mov_read_extradata }, { MKTAG('c','o','6','4'), mov_read_stco }, -{ MKTAG('c','s','l','g'), mov_read_cslg }, { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */ { MKTAG('d','i','n','f'), mov_read_default }, { MKTAG('d','r','e','f'), mov_read_dref }, -- cgit v1.2.3