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movenc: Don't rely on the fragment index for vc1 info gathering 

The previous use of the mov->fragments field, for determining whether
written packets were part of the first fragment or not, didn't
work as intended when using the empty_moov flag.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2015-01-20 15:54:03 +01:00
parent cf402d6fa8
commit 0c5e380c2c
2 changed files with 9 additions and 4 deletions
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11
libavformat/movenc.c
View File

@ -3050,7 +3050,7 @@ static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
return 0;
}
static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
{
const uint8_t *start, *next, *end = pkt->data + pkt->size;
int seq = 0, entry = 0;
@ -3070,10 +3070,13 @@ static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
break;
}
}
if (!trk->entry && !fragment) {
if (!trk->entry && trk->vc1_info.first_packet_seen)
trk->vc1_info.first_frag_written = 1;
if (!trk->entry && !trk->vc1_info.first_frag_written) {
/* First packet in first fragment */
trk->vc1_info.first_packet_seq = seq;
trk->vc1_info.first_packet_entry = entry;
trk->vc1_info.first_packet_seen = 1;
} else if ((seq && !trk->vc1_info.packet_seq) ||
(entry && !trk->vc1_info.packet_entry)) {
int i;
@ -3084,7 +3087,7 @@ static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
trk->vc1_info.packet_seq = 1;
if (entry)
trk->vc1_info.packet_entry = 1;
if (!fragment) {
if (!trk->vc1_info.first_frag_written) {
/* First fragment */
if ((!seq || trk->vc1_info.first_packet_seq) &&
(!entry || trk->vc1_info.first_packet_entry)) {
@ -3409,7 +3412,7 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
trk->start_cts = pkt->pts - pkt->dts;
if (enc->codec_id == AV_CODEC_ID_VC1) {
mov_parse_vc1_frame(pkt, trk, mov->fragments);
mov_parse_vc1_frame(pkt, trk);
} else if (pkt->flags & AV_PKT_FLAG_KEY) {
if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
trk->entry > 0) { // force sync sample for the first key frame

2
libavformat/movenc.h
View File

@ -131,6 +131,8 @@ typedef struct MOVTrack {
struct {
int first_packet_seq;
int first_packet_entry;
int first_packet_seen;
int first_frag_written;
int packet_seq;
int packet_entry;
int slices;