[MPlayer-users] First few seconds of movie are skipped when movie loops

[Marcin Gałczyński]

Hello,

Greetings fellow mplayer users!

I use the following command line to start mplayer in endless loop mode 
to play a movie:
mplayer -vo xv -quiet -framedrop -fixed-vo -nolirc -nomouseinput -nosub 
-noautosub -osd-duration 0 -osdlevel 0 -slave -nosound 
-noconsolecontrols -input file=/tmp/mpfc1 movie-file.mp4 -loop 0 
 >../logs/movieplayer.log 2>&1

What happends is that the first full playback of the movie is correct 
and then all next playbacks of the same movie in the loop are missing 
first few seconds of the movie. The missing part is of constant length, 
not sure about precise number, but it seems like the gap is few seconds 
long.

Is this the movie, the way i call mplayer, or maybe a mplayer bug - then 
i can file it in? Any meaningful comments appreciated, thanks!

Below some data that could help with analysis of the problem

Movie is encoded with libavcodec / libx264 h264 encoder, format mp4. The 
mplayer output looks like this:

command:
mplayer -vo xv -framedrop -fixed-vo -nolirc -nomouseinput -nosub 
-noautosub -osd-duration 0 -osdlevel 0 -slave -nosound 
-noconsolecontrols -input file=/tmp/mpfc1 movie-file.mp4 -loop 0 
 >out.txt 2>err.txt

out.txt:
MPlayer SVN-r35234-4.7.2 (C) 2000-2012 MPlayer Team

Playing ./movie.20130826191947.vid.
libavformat version 54.29.104 (external)
libavformat file format detected.
[lavf] stream 0: video (h264), -vid 0
VIDEO:  [H264]  1360x768  24bpp  30.000 fps  310.0 kbps (37.8 kbyte/s)
Clip info:
  major_brand: isom
  minor_version: 512
  compatible_brands: isomiso2avc1mp41
  encoder: Lavf54.29.104
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 54.59.100 (external)
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
Audio: no sound
Starting playback...
Movie-Aspect is 1.77:1 - prescaling to correct movie aspect.
VO: [xv] 1360x768 => 1360x768 Planar YV12
V:   0.0   0/  0 ??% ??% ??,?%
V:   0.0   0/  0 ??% ??% ??,?% 0
V:   0.1   0/  0 ??% ??% ??,?% 0 0
V:   0.1   0/  0 ??% ??% ??,?% 0
V:   0.1   0/  0 ??% ??% ??,?% 0
V:   0.2   0/  0 ??% ??% ??,?% 0
V:   0.2   0/  0 ??% ??% ??,?% 0
V:   0.2   0/  0 ??% ??% ??,?% 0 0
........... i cut out this part, it looks normal
V: 550.6   0/  0 11%  3%  0.0% 0
V: 550.6   0/  0 11%  3%  0.0% 0
V: 550.6   0/  0 11%  3%  0.0% 0
V: 550.6   0/  0 11%  3%  0.0% 0
V:   8.3   0/  0 ??% ??% ??,?% 0   <---- notice this skip, start from 
8.3 instead of 0
V:   8.4   0/  0 ??% ??% ??,?% 0
V:   8.4   0/  0 ??% ??% ??,?% 0
V:   8.4   0/  0 ??% ??% ??,?% 0
............
Exiting... (Quit)

err.txt:
Unsupported PixelFormat 61
Unsupported PixelFormat 53
Unsupported PixelFormat 81

I also ran ffprobe on the video file:
ffprobe version 1.0.7 Copyright (c) 2007-2013 the FFmpeg developers
   built on May 14 2013 21:59:35 with gcc 4.7.2 (GCC) 20121109 (Red Hat 
4.7.2-8)
   configuration: --prefix=/usr --bindir=/usr/bin 
--datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg 
--libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 
--optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions 
-fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic' 
--enable-bzlib --disable-crystalhd --enable-frei0r --enable-gnutls 
--enable-libass --enable-libcdio --enable-libcelt --enable-libdc1394 
--disable-indev=jack --enable-libfreetype --enable-libgsm 
--enable-libmp3lame --enable-openal --enable-libopencv 
--enable-libopenjpeg --enable-libopus --enable-libpulse 
--enable-libschroedinger --enable-libspeex --enable-libtheora 
--enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 
--enable-libxvid --enable-x11grab --enable-avfilter --enable-postproc 
--enable-pthreads --disable-static --enable-shared --enable-gpl 
--disable-debug --disable-stripping --shlibdir=/usr/lib64 
--enable-runtime-cpudetect
   libavutil      51. 73.101 / 51. 73.101
   libavcodec     54. 59.100 / 54. 59.100
   libavformat    54. 29.104 / 54. 29.104
   libavdevice    54.  2.101 / 54.  2.101
   libavfilter     3. 17.100 /  3. 17.100
   libswscale      2.  1.101 /  2.  1.101
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'movie.20130826191947.vid':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf54.29.104
   Duration: 00:09:10.66, start: 0.000000, bitrate: 312 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 
1360x768 [SAR 1:1 DAR 85:48], 309 kb/s, 30 fps, 30 tbr, 30 tbn, 60 tbc
     Metadata:
       handler_name    : VideoHandler



-- 
best rgds,
Marcin