[MPlayer-dvb] mplayer output to dvb card

[Thomas Palmer]

Here are some results:

xvid videos:
tried -speed and -nosound settings with and without vf
results: still flicking, some xvids do not need -vf expand to play but some do (because mpegpes card is compatible with only certain resolutions)

mpeg2/pva:
pva video tested with -vf expand setting on or off
when -vf expand is specified the video is flickering b&w
when -vf expand is not specified the video plays without flickering

The thing of importance that I notice is that xvids complain in console that it "could not find matching colorspace" and the pva files complain of the same issue only when -vf expand is used which makes them flicker (otherwise they play normally without that setting).

-----------------------------------------------------------------------------------------------------------------
console output for pva file without -vf expand (plays without flicking):

PVA file format detected.
Opened PVA demuxer...
VIDEO:  MPEG2  544x480  (aspect 2)  29.970 fps  15000.0 kbps (1875.0 kbyte/s)
Opening /dev/dvb/adapter0/video0+audio0
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 544 x 480 (preferred colorspace: Mpeg PES)
VDec: using Mpeg PES as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [mpegpes] 544x480 => 544x480 Mpeg PES
Selected video codec: [mpegpes] vfm: mpegpes (MPEG-PES output (.mpg or DXR3/IVTV/DVB card))
==========================================================================
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 160.0 kbit/10.42% (ratio: 20000->192000)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
Opening /dev/dvb/adapter0/audio0
AO: [mpegpes] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...   

------------------------------------------------------------------------------------------------------------------

console output for pva file with -vf expand (plays with flicking):

Opened PVA demuxer...
VIDEO:  MPEG2  544x480  (aspect 2)  29.970 fps  15000.0 kbps (1875.0 kbyte/s)
Opening /dev/dvb/adapter0/video0+audio0
Opening video filter: [expand]
Expand: -1 x -1, -1 ; -1, osd: 0, aspect: 0.000000, round: 1
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 544 x 480 (preferred colorspace: Mpeg PES)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
Opening video filter: [lavc]
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try adding the scale filter, e.g. -vf spp,scale instead of -vf spp.
VDecoder init failed :(
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
Selected video codec: [mpeg12] vfm: libmpeg2 (MPEG-1 or 2 (libmpeg2))
==========================================================================
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 160.0 kbit/10.42% (ratio: 20000->192000)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
Opening /dev/dvb/adapter0/audio0
AO: [mpegpes] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...                    
VDec: vo config request - 544 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
[mpeg1video @ 0x878e498]removing common factors from framerate
VO: [mpegpes] 544x480 => 640x480 Mpeg PES

---------------------------------------------------------------------------------------------
xvid without -vf expand:

AVI file format detected.
AVI_NI: No audio stream found -> no sound.
VIDEO:  [XVID]  544x288  12bpp  23.976 fps  893.5 kbps (109.1 kbyte/s)
Clip info:
 Software: Nandub v1.0rc2
Opening /dev/dvb/adapter0/video0+audio0
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==========================================================================
Audio: no sound
Starting playback...
VDec: vo config request - 544 x 288 (preferred colorspace: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
Opening video filter: [lavc]
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.89:1 - prescaling to correct movie aspect.
[mpeg1video @ 0x878e498]removing common factors from framerate
VO: [mpegpes] 544x288 => 544x288 Mpeg PES


---------------------------------------------------------------------------------------------------------
xvid file with -vf expand:

AVI file format detected.
AVI_NI: No audio stream found -> no sound.
VIDEO:  [XVID]  544x288  12bpp  23.976 fps  893.5 kbps (109.1 kbyte/s)
Clip info:
 Software: Nandub v1.0rc2
Opening /dev/dvb/adapter0/video0+audio0
Opening video filter: [expand w=720 h=480]
Expand: 720 x 480, -1 ; -1, osd: 0, aspect: 0.000000, round: 1
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==========================================================================
Audio: no sound
Starting playback...
VDec: vo config request - 544 x 288 (preferred colorspace: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
Opening video filter: [lavc]
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.89:1 - prescaling to correct movie aspect.
[mpeg1video @ 0x878e498]removing common factors from framerate
VO: [mpegpes] 720x480 => 720x480 Mpeg PES

Looks like colorspace might have something to the flickering.  Let me know if there is anything you would like me to try.  

Thanks

Nico Sabbi <nicola_sabbi at fastwebnet.it> wrote: Thomas Palmer wrote:

>I tried adding -fps 30000/1001 , but there is no change, it still is flipping and looks like it is in PAL.  (I tried other fps rates as well and tried different expand resolutions, but it still flips.)
>
>Thanks
>
>Nico Sabbi  wrote: Thomas Palmer wrote:
>  
>
just to see where the problem lies you may try -nosound -speed 
30000/25025 or
-nosound -speed 24000/25025 with or without -vf expand
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