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authorreimar <reimar@b3059339-0415-0410-9bf9-f77b7e298cf2>2010-02-21 13:53:41 +0000
committerreimar <reimar@b3059339-0415-0410-9bf9-f77b7e298cf2>2010-02-21 13:53:41 +0000
commit264e6c23fef6ea156cb9653f911e6ec4e95b4813 (patch)
treec68100d66636115da52c2de355ef0c865df8b602 /libmpdemux
parent28cf6ea2be72588dba3b35db864bf63182d1b17f (diff)
downloadmpv-264e6c23fef6ea156cb9653f911e6ec4e95b4813.tar.bz2
mpv-264e6c23fef6ea156cb9653f911e6ec4e95b4813.tar.xz
Parse and use the information from the frame rate extension header for MPEG-2.
-identify still does not show the right values though. Fixes bug #1636. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@30681 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libmpdemux')
-rw-r--r--libmpdemux/mpeg_hdr.c3
-rw-r--r--libmpdemux/mpeg_hdr.h2
-rw-r--r--libmpdemux/video.c10
3 files changed, 11 insertions, 4 deletions
diff --git a/libmpdemux/mpeg_hdr.c b/libmpdemux/mpeg_hdr.c
index c07cd6bf16..af1b9223dd 100644
--- a/libmpdemux/mpeg_hdr.c
+++ b/libmpdemux/mpeg_hdr.c
@@ -81,6 +81,9 @@ static int header_process_sequence_extension (mp_mpeg_header_t * picture,
return 1;
picture->progressive_sequence = (buffer[1] >> 3) & 1;
+ picture->frame_rate_extension_n = ((buffer[5] >> 5) & 3) + 1;
+ picture->frame_rate_extension_d = (buffer[5] & 0x1f) + 1;
+
picture->mpeg1 = 0;
return 0;
}
diff --git a/libmpdemux/mpeg_hdr.h b/libmpdemux/mpeg_hdr.h
index d9922767b2..ccd84bcdb0 100644
--- a/libmpdemux/mpeg_hdr.h
+++ b/libmpdemux/mpeg_hdr.h
@@ -27,6 +27,8 @@ typedef struct {
int aspect_ratio_information;
int frame_rate_code;
float fps;
+ int frame_rate_extension_n;
+ int frame_rate_extension_d;
int bitrate; // 0x3FFFF==VBR
// timing:
int picture_structure;
diff --git a/libmpdemux/video.c b/libmpdemux/video.c
index 603239456b..bc46c983f9 100644
--- a/libmpdemux/video.c
+++ b/libmpdemux/video.c
@@ -433,6 +433,7 @@ int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char**
float frame_time=1;
float pts1=d_video->pts;
float pts=0;
+ float fps;
int picture_coding_type=0;
int in_size=0;
video_codec_t video_codec = find_video_codec(sh_video);
@@ -469,14 +470,15 @@ int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char**
case 0x100: picture_coding_type=(videobuffer[start+1] >> 3) & 7;break;
}
}
+ fps = picture.fps * picture.frame_rate_extension_n / picture.frame_rate_extension_d;
*start=videobuffer; in_size=videobuf_len;
// get mpeg fps:
- if(sh_video->fps!=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,sh_video->fps-picture.fps,picture.frame_rate_code);
- sh_video->fps=picture.fps;
- sh_video->frametime=1.0/picture.fps;
+ if(sh_video->fps!=fps) if(!force_fps && !telecine){
+ mp_msg(MSGT_CPLAYER,MSGL_WARN,"Warning! FPS changed %5.3f -> %5.3f (%f) [%d] \n",sh_video->fps,fps,sh_video->fps-fps,picture.frame_rate_code);
+ sh_video->fps=fps;
+ sh_video->frametime=1.0/fps;
}
// fix mpeg2 frametime: