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telecine detection 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8968 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2003-01-16 23:40:31 +00:00
parent 1637b36c9a
commit 1eb1e00083
1 changed files with 23 additions and 1 deletions
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24
libmpdemux/video.c
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@ -27,6 +27,9 @@
static mp_mpeg_header_t picture;
static int telecine=0;
static float telecine_cnt=-2.5;
int video_read_properties(sh_video_t *sh_video){
demux_stream_t *d_video=sh_video->ds;
@ -92,6 +95,7 @@ switch(d_video->demuxer->file_format){
//mpeg_header_parser:
// Find sequence_header first:
videobuf_len=0; videobuf_code_len=0;
telecine=0; telecine_cnt=-2.5;
mp_msg(MSGT_DECVIDEO,MSGL_V,"Searching for sequence header... ");fflush(stdout);
while(1){
int i=sync_video_packet(d_video);
@ -282,7 +286,7 @@ int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char**
#if 1
// get mpeg fps:
//newfps=frameratecode2framerate[picture->frame_rate_code]*0.0001f;
if((int)(sh_video->fps*10000+0.5)!=picture.fps) if(!force_fps){
if((int)(sh_video->fps*10000+0.5)!=picture.fps) if(!force_fps && !telecine){
mp_msg(MSGT_CPLAYER,MSGL_WARN,"Warning! FPS changed %5.3f -> %5.3f (%f) [%d] \n",sh_video->fps,picture.fps*0.0001,sh_video->fps-picture.fps*0.0001,picture.frame_rate_code);
sh_video->fps=picture.fps*0.0001;
sh_video->frametime=10000.0f/(float)picture.fps;
@ -294,6 +298,24 @@ int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char**
picture.display_time=100;
videobuf_len=0;
telecine_cnt*=0.9; // drift out error
telecine_cnt+=frame_time-5.0/4.0;
// printf("\r telecine = %5.3f \n",telecine_cnt);
if(telecine){
frame_time=1;
if(telecine_cnt<-1.5 || telecine_cnt>1.5){
mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_LeaveTelecineMode);
telecine=0;
}
} else
if(telecine_cnt>-0.5 && telecine_cnt<0.5 && !force_fps){
sh_video->fps=sh_video->fps*4/5;
sh_video->frametime=sh_video->frametime*5/4;
mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_EnterTelecineMode,sh_video->fps);
telecine=1;
}
} else {
// frame-based file formats: (AVI,ASF,MOV)
in_size=ds_get_packet(d_video,start);