[MPlayer-users] mjpeg playback solid green

[Steven M. Schultz]

Hi -

	On an OSX 10.4.2 system when I play back a MJPEG-A file all that
	appears is a window of solid (bright/lime) green.  The times I've
	seen this happen in other situations it's because the Y'CbCr data
	was all 0/0/0

sms% mplayer -v xxx.avi
MPlayer dev-CVS-050901-21:02-4.0.0 (C) 2000-2005 MPlayer Team
AltiVec found
CPU: PowerPC

CommandLine: '-monitoraspect' '16/10' '-v' 'xxx.avi'
init_freetype
get_path('font/font.desc') -> '/Users/sms/.mplayer/font/font.desc'
font: can't open file: /Users/sms/.mplayer/font/font.desc
Font /usr/local/share/mplayer/font/font.desc loaded successfully! (206 chars)
Using Unoptimized OnScreenDisplay
Using Darwin accurate timing
get_path('input.conf') -> '/Users/sms/.mplayer/input.conf'
Can't open input config file /Users/sms/.mplayer/input.conf: No such file or directory
Can't open input config file /usr/local/etc/mplayer/input.conf: No such file or directory
Falling back on default (hardcoded) input config
get_path('xxx.avi.conf') -> '/Users/sms/.mplayer/xxx.avi.conf'
Playing xxx.avi.
[file] File size is 475857534 bytes
STREAM: [file] xxx.avi
STREAM: Description: File
STREAM: Author: Albeu
STREAM: Comment: based on the code from ??? (probably Arpi)
AVI file format detected.
list_end=0xDC
======= AVI Header =======
us/frame: 40000  (fps=25.000)
max bytes/sec: 10000000
padding: 0
MainAVIHeader.dwFlags: (65552) HAS_INDEX WAS_CAPTUREFILE
frames  total: 5182   initial: 0
streams: 1
Suggested BufferSize: 0
Size:  720 x 576
==========================
list_end=0xDC
==> Found video stream: 0
====== STREAM Header =====
Type: sdiv   FCC: GPJM (47504A4D)
Flags: 0
Priority: 0   Language: 0
InitialFrames: 0
Rate: 1000000/40000 = 25.000
Start: 0   Len: 5182
Suggested BufferSize: 0
Quality -1
Sample size: 0
==========================
found 'bih', 40 bytes of 40
======= VIDEO Format ======
  biSize 40
  biWidth 720
  biHeight 576
  biPlanes 1
  biBitCount 24
  biCompression 1196444237='GPJM'
  biSizeImage 414720
===========================
list_end=0x1C5BBE96
Found movie at 0x800 - 0x1C5BBE96
Reading INDEX block, 5182 chunks for 5182 frames (fpos=0x0)
AVI index offset: 0x0 (movi=0x800 idx0=0x800 idx1=0x20DCC)
Auto-selected AVI video ID = 0
AVI_NI: No audio stream found -> no sound.
AVI: Searching for audio stream (id:-1)
AVI: No audio stream found -> no sound.
AVI video size=475728502 (5182) audio size=0 (0)
VIDEO:  [GPJM]  720x576  24bpp  25.000 fps  18360.8 kbps (2241.3 kbyte/s)
VIDEO:  [GPJM]  720x576  24bpp  25.000 fps  18360.8 kbps (2241.3 kbyte/s)
[V] filefmt:3  fourcc:0x47504A4D  size:720x576  fps:25.00  ftime:=0.0400
get_path('sub/') -> '/Users/sms/.mplayer/sub/'
get_path('default.sub') -> '/Users/sms/.mplayer/default.sub'
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
INFO: libavcodec init OK!
Selected video codec: [ffmjpeg] vfm:ffmpeg (FFmpeg MJPEG decoder)
==========================================================================
Audio: no sound
Freeing 0 unused audio chunks.
Starting playback...
[ffmpeg] aspect_ratio: 0.000000
VDec: vo config request - 720 x 576 (preferred csp: Planar 422P)
Trying filter chain: vo
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
SwScale params: -1 x -1 (-1=no scaling)
Trying filter chain: scale vo
VDec: using Planar 422P as output csp (no 1)
Movie-Aspect is undefined - no prescaling applied.
VO Config (720x576->720x576,flags=0,'MPlayer',0x50323234)
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 1 -> 1

SwScaler: BICUBIC scaler, from Planar 422P to Packed YUY2 using AltiVec
SwScaler: using C scaler for horizontal scaling
SwScaler: using n-tap C scaler for vertical scaling (BGR)
SwScaler: 720x576 -> 720x576
REQ: flags=0x37  req=0x0  
VO: [macosx] 720x576 => 720x576 Packed YUY2 
VO: Description: Mac OSX Core Video
VO: Author: Nicolas Plourde <nicolas.plourde at gmail.com>
*** [scale] Allocating mp_image_t, 720x576x16bpp YUV planar, 829440 bytes
*** [vo] Allocating mp_image_t, 720x576x16bpp YUV packed, 829440 bytes
*** [scale] Allocating mp_image_t, 720x576x16bpp YUV planar, 829440 bytes       
uninit video: ffmpeg 59%  0.0% 0 0                                              
vo: x11 uninit called but X11 not inited..

	Everything looks ok as far as recognizing the file goes but all that
	appears is green.

	Is this specific to the PPC/Altivec platform or is anyone else also
	seeing this type of behaviour when playing MJPEG files?

	Cheers,
	Steven Schultz