[MPlayer-users] Re: H264 HDTV streams can't be watched

[Carl Eugen Hoyos]

Nico Sabbi <nsabbi <at> email.it> writes:

> 
> Carl Eugen Hoyos wrote:
> > Hi!
> >
> > When I'm watching (actually reencoding) HDTV via DVB-C (Pro7HD, Sat1HD and
> > AnixeHD), I always get the same errors, but at changing intervals: Video
> > is shown correctly, then starts being corrupt (with "concealing 4080 DC" 
> > errors), after some time it's correct again, and so on. Audio is clear all
> > the time.
> >
> > Is anybody using DVB-S2 seeing the same problems, or is my cable provider
> > corrupting the stream?

[...]

> > mplayer H264.ts
> > MPlayer dev-CVS-060309-16:18-4.0.2 (C) 2000-2006 MPlayer Team
> >   
> 
> too old, update please
> 

[...]

> > FPS seems to be: 50.000000
> >   
> 
> should be fixed in cvs

[...]

> > a52: CRC check failed!   -1.055 ct: -0.040  21/ 21 ??% ??% ??,?% 20 0
> >   
> 
> maybe fixed in cvs.
> If you still have problems try to use -demuxer lavf and let us know if 
> it works better, please

-demuxer lavf changes the way mplayer tries to synchronise at the beginning of
the stream: Without -demuxer lavf, audio is heard two seconds too early,
-demuxer lavf tries to compensate, but the result is audio is played two seconds
too late which is even worse. Later on, the same errors as below occur.

However that's not my problem: The same relevant errors still occur:

mplayer GrayH264.ts
MPlayer dev-CVS-060420-19:12-4.0.2 (C) 2000-2006 MPlayer Team
CPU: Advanced Micro Devices Sempron/Athlon MP/XP Thoroughbred; Duron Applebred
(Family: 6, Stepping: 1)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE

Playing GrayH264.ts.
TS file format detected.
DEMUX OPEN, AUDIO_ID: -1, VIDEO_ID: -1, SUBTITLE_ID: -2,
PROBING UP TO 2000000, PROG: 0
VIDEO H264(pid=255)...AUDIO A52(pid=259) NO SUBS (yet)!  PROGRAM N. 1000
Opened TS demuxer, audio: 2000(pid 259), video: 10000005(pid 255)...POS=564,
PROBE=2000000
FPS seems to be: 25.000000
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
AC3: 2.0 (stereo)  48000 Hz  448.0 kbit/s
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, s16le, 448.0 kbit/29.17% (ratio: 56000->192000)
Selected audio codec: [a52] afm: liba52 (AC3-liba52)
==========================================================================
xscreensaver_disable: Could not find XScreenSaver window.
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
alsa-init: using device default
alsa: 48000 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 1920 x 1088 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.76:1 - prescaling to correct movie aspect.
VO: [xv] 1920x1088 => 1920x1088 Planar YV12
aspect: Warning: no suitable new res found!
[h264 @ 0x87379c8]concealing 4080 DC, 4080 AC, 4080 MV errors1.4% 91 0
[h264 @ 0x87379c8]illegal short term buffer state detected%  1.4% 92 0
[h264 @ 0x87379c8]concealing 4080 DC, 4080 AC, 4080 MV errors
[h264 @ 0x87379c8]concealing 4080 DC, 4080 AC, 4080 MV errors1.5% 93 0
[h264 @ 0x87379c8]illegal short term buffer state detected%  1.5% 94 0
[h264 @ 0x87379c8]concealing 4080 DC, 4080 AC, 4080 MV errors
[h264 @ 0x87379c8]concealing 4080 DC, 4080 AC, 4080 MV errors1.5% 95 0
[h264 @ 0x87379c8]illegal short term buffer state detected%  1.5% 96 0
[h264 @ 0x87379c8]concealing 4080 DC, 4080 AC, 4080 MV errors
[h264 @ 0x87379c8]concealing 4080 DC, 4080 AC, 4080 MV errors1.6% 97 0
[h264 @ 0x87379c8]illegal short term buffer state detected%  1.6% 98 0
[h264 @ 0x87379c8]concealing 4080 DC, 4080 AC, 4080 MV errors
[h264 @ 0x87379c8]concealing 4080 DC, 4080 AC, 4080 MV errors1.6% 99 0

and so on...

Can you reproduce the problem with the sample I provided on incoming/GrayH264.ts?

Thank you, Carl Eugen

[...]