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Code Issues Releases Activity

set AVFrame.pts based upon framerate if its 0

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detect & warn if the user prvides pts only for some frames, and try to guess the missing ones

Originally committed as revision 2812 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-02-25 02:05:50 +00:00
parent ed7b99bbe2
commit e51f49487e
3 changed files with 15 additions and 5 deletions
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7
libavcodec/h263.c
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@ -2156,10 +2156,9 @@ void ff_mpeg4_stuffing(PutBitContext * pbc)
void ff_set_mpeg4_time(MpegEncContext * s, int picture_number){
int time_div, time_mod;
if(s->current_picture_ptr->pts)
s->time= (s->current_picture_ptr->pts*s->time_increment_resolution + 500*1000)/(1000*1000);
else
s->time= av_rescale(picture_number*(int64_t)s->avctx->frame_rate_base, s->time_increment_resolution, s->avctx->frame_rate);
assert(s->current_picture_ptr->pts);
s->time= (s->current_picture_ptr->pts*s->time_increment_resolution + 500*1000)/(1000*1000);
time_div= s->time/s->time_increment_resolution;
time_mod= s->time%s->time_increment_resolution;

10
libavcodec/mpegvideo.c
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@ -1850,6 +1850,16 @@ static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
copy_picture_attributes(pic, pic_arg);
pic->display_picture_number= s->input_picture_number++;
if(pic->pts){
s->user_specified_pts= pic->pts;
}else{
if(s->user_specified_pts){
pic->pts= s->user_specified_pts + 1000ULL*1000ULL*s->avctx->frame_rate_base / s->avctx->frame_rate;
av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=0 trying to guess (%Ld)\n", pic->pts);
}else{
pic->pts= av_rescale(pic->display_picture_number*(int64_t)s->avctx->frame_rate_base, 1000*1000, s->avctx->frame_rate);
}
}
}
/* shift buffer entries */

1
libavcodec/mpegvideo.h
View File

@ -275,6 +275,7 @@ typedef struct MpegEncContext {
int picture_number; //FIXME remove, unclear definition
int picture_in_gop_number; ///< 0-> first pic in gop, ...
int b_frames_since_non_b; ///< used for encoding, relative to not yet reordered input
int64_t user_specified_pts;///< last non zero pts from AVFrame which was passed into avcodec_encode_video()
int mb_width, mb_height; ///< number of MBs horizontally & vertically
int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressng of left & top MBs withoutt sig11
int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressng