videolan
/
ffmpeg
mirror of https://git.videolan.org/git/ffmpeg.git
1
Fork 0
Code Releases Activity

nutenc: keep track if keyframe PTS 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-08-19 23:33:47 +02:00
parent e6a045ba56
commit c2a134c66c
2 changed files with 20 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
libavformat/nut.h
View File

@ -79,6 +79,7 @@ typedef struct {
int msb_pts_shift;
int max_pts_distance;
int decode_delay; //FIXME duplicate of has_b_frames
int64_t *keyframe_pts;
} StreamContext;
typedef struct {

20
libavformat/nutenc.c
View File

@ -750,6 +750,17 @@ static int nut_write_packet(AVFormatContext *s, AVPacket *pkt){
put_packet(nut, bc, dyn_bc, 1, SYNCPOINT_STARTCODE);
ff_nut_add_sp(nut, nut->last_syncpoint_pos, 0/*unused*/, pkt->dts);
if((1ll<<60) % nut->sp_count == 0)
for(i=0; i<s->nb_streams; i++){
int j;
StreamContext *nus = &nut->stream[i];
nus->keyframe_pts = av_realloc(nus->keyframe_pts, 2*nut->sp_count*sizeof(*nus->keyframe_pts));
if(!nus->keyframe_pts)
return AVERROR(ENOMEM);
for(j=nut->sp_count == 1 ? 0 : nut->sp_count; j<2*nut->sp_count; j++)
nus->keyframe_pts[j] = AV_NOPTS_VALUE;
}
}
av_assert0(nus->last_pts != AV_NOPTS_VALUE);
@ -840,7 +851,7 @@ static int nut_write_packet(AVFormatContext *s, AVPacket *pkt){
nus->last_pts= pkt->pts;
//FIXME just store one per syncpoint
if(flags & FLAG_KEY)
if(flags & FLAG_KEY) {
av_add_index_entry(
s->streams[pkt->stream_index],
nut->last_syncpoint_pos,
@ -848,6 +859,9 @@ static int nut_write_packet(AVFormatContext *s, AVPacket *pkt){
0,
0,
AVINDEX_KEYFRAME);
if(nus->keyframe_pts && nus->keyframe_pts[nut->sp_count] == AV_NOPTS_VALUE)
nus->keyframe_pts[nut->sp_count] = pkt->pts;
}
return 0;
}
@ -855,11 +869,15 @@ static int nut_write_packet(AVFormatContext *s, AVPacket *pkt){
static int nut_write_trailer(AVFormatContext *s){
NUTContext *nut= s->priv_data;
AVIOContext *bc= s->pb;
int i;
while(nut->header_count<3)
write_headers(s, bc);
avio_flush(bc);
ff_nut_free_sp(nut);
for(i=0; i<s->nb_streams; i++)
av_freep(&nut->stream[i].keyframe_pts);
av_freep(&nut->stream);
av_freep(&nut->chapter);
av_freep(&nut->time_base);