[MEncoder-users] [Patch] Division-by-zero problem caused by 'dimensionnot set' (Was: Same file, diff outputs)

Jiang Hong netex at 163.com
Wed Jun 28 04:49:18 CEST 2006 

Hi,

$ mencoder -vf scale=384:288 -ffourcc FLV1 -of lavf -lavfopts i_certify_tha
t_my_video_stream_does_not_use_b_frames -ovc lavc -lavcopts vcodec=flv:vbitrate=
200000:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:predia=2:dia=2:precmp=2:cmp=2:subcmp
=2:preme=2:turbo -srate 22050 -oac lavc -lavcopts acodec=mp3:abitrate=48 -ofps 1
5 -o 1.flv -v 10426.avi

MEncoder dev-SVN-r-3.4.2 (C) 2000-2006 MPlayer Team
CPU: Genuine Intel(R) CPU           T2400  @ 1.83GHz (Family: 6, Model: 14, Step
ping: 8)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0
Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2

init_freetype
get_path('font/font.desc') -> 'C:/xxx/mplayer/font/font.desc'
font: can't open file: C:/xxx/mplayer/font/font.desc
font: can't open file: /usr/local/share/mplayer/font/font.desc
Using MMX (with tiny bit MMX2) Optimized OnScreenDisplay
WINSOCK2 init: 0
[file] File size is 43718126 bytes
STREAM: [file] 10426.avi
STREAM: Description: File
STREAM: Author: Albeu
STREAM: Comment: based on the code from ??? (probably Arpi)
success: format: 0  data: 0x0 - 0x29b15ee
AVI file format detected.
list_end=0x1E4
======= AVI Header =======
us/frame: 80000  (fps=12.500)
max bytes/sec: 2196480
padding: 1
MainAVIHeader.dwFlags: (2048) TRUST_CKTYPE
frames  total: 32004   initial: 0
streams: 2
Suggested BufferSize: 9230
Size:  208 x 176
==========================
list_end=0x138
==> Found video stream: 0
====== STREAM Header =====
Type: vids   FCC: XVID (44495658)
Flags: 0
Priority: 0   Language: 0
InitialFrames: 0
Rate: 10000000/800000 = 12.500
Start: 0   Len: 32004
Suggested BufferSize: 9230
Quality 0
Sample size: 0
==========================
Found 'bih', 44 bytes of 40
======= VIDEO Format ======
  biSize 40
  biWidth 208
  biHeight 176
  biPlanes 1
  biBitCount 24
  biCompression 1145656920='XVID'
  biSizeImage 109824
===========================
Regenerating keyframe table for MPEG-4 video.
====== AVI Super Index Header ========
  FCC (indx) dwSize (40) wLongsPerEntry(4)
  bIndexSubType (0) bIndexType (0)
  nEntriesInUse (1) dwChunkId (00db)
  dwReserved[0] (0) dwReserved[1] (0) dwReserved[2] (0)
===========================
ODML (00db): [0] 0x000000000296dd86 0x3e840 32004
list_end=0x1E4
==> Found audio stream: 1
====== STREAM Header =====
Type: auds   FCC:  (0)
Flags: 0
Priority: 0   Language: 0
InitialFrames: 0
Rate: 3000/1 = 3000.000
Start: 0   Len: 7681392
Suggested BufferSize: 3008
Quality 0
Sample size: 1
==========================
Found 'wf', 40 bytes of 18
======= WAVE Format =======
Format Tag: 85 (0x55)
Channels: 1
Samplerate: 16000
avg byte/sec: 3000
Block align: 1
bits/sample: 0
cbSize: 22
mp3.wID=4
mp3.fdwFlags=0x5DC0
mp3.nBlockSize=8
mp3.nFramesPerBlock=0
mp3.nCodecDelay=0
==========================================================================
====== AVI Super Index Header ========
  FCC (indx) dwSize (40) wLongsPerEntry(4)
  bIndexSubType (0) bIndexType (0)
  nEntriesInUse (1) dwChunkId (01wb)
  dwReserved[0] (0) dwReserved[1] (0) dwReserved[2] (0)
===========================
ODML (01wb): [0] 0x00000000029ac5c6 0x5028 7681392
list_end=0x29B15EE
Found movie at 0x1F0 - 0x29B15EE
AVI: ODML: Building ODML index (2 superindexchunks).
====== AVI Standard Index Header ========
  FCC (ix00) dwSize (256056) wLongsPerEntry(2)
  bIndexSubType (0) bIndexType (1)
  nEntriesInUse (32004) dwChunkId (00db)
  qwBaseOffset (0x0) dwReserved3 (0)
===========================
====== AVI Standard Index Header ========
  FCC (ix01) dwSize (20512) wLongsPerEntry(2)
  bIndexSubType (0) bIndexType (1)
  nEntriesInUse (2561) dwChunkId (01wb)
  qwBaseOffset (0x0) dwReserved3 (0)
===========================
AVI index offset: 0x0 (movi=0x1F0 idx0=0x1F0 idx1=0x88C)
Auto-selected AVI video ID = 0
Auto-selected AVI audio ID = 1
ChunkID mismatch! raw=00dc idx=00db
AVI: Searching for audio stream (id:1)
XXX initial  v_pts=0.400  a_pos=0 (0.000)
AVI video size=35467037 (32004) audio size=7681392 (7681392)
VIDEO:  [XVID]  208x176  24bpp  12.500 fps  110.8 kbps (13.5 kbyte/s)
[V] filefmt:3  fourcc:0x44495658  size:208x176  fps:12.50  ftime:=0.0800
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
dec_audio: Allocating 4608 + 65536 = 70144 bytes for output buffer.
mp3lib: made decode tables with MMX optimization
mp3lib: using MMX optimized decore!
MP3lib: init layer2&3 finished, tables done
MPEG 2.0, Layer III, 16000 Hz 24 kbit Single-Channel, BPF: 108
Channels: 1, copyright: No, original: No, CRC: No, emphasis: 0
AUDIO: 16000 Hz, 2 ch, s16le, 24.0 kbit/4.69% (ratio: 3000->64000)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
** MUXER_LAVF *****************************************************************
You have certified that your video stream does not contain B frames.
REMEMBER: MEncoder's libavformat muxing is presently broken and will generate
INCORRECT files in the presence of B frames. Moreover, due to bugs MPlayer
will play these INCORRECT files as if nothing were wrong!
*******************************************************************************
OK, exit
ALLOCATED STREAM N. 1, type=0
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [scale w=384 h=288]
SwScale params: 384 x 288 (-1=no scaling)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
INFO: libavcodec init OK!
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==========================================================================
Forcing output FourCC to 31564c46 [FLV1].
ALLOCATED STREAM N. 2, type=1
Building audio filter chain for 16000Hz/2ch/s16le -> 22050Hz/0ch/??...
[libaf] Adding filter dummy
[dummy] Was reinitialized: 16000Hz/2ch/s16le
[libaf] Adding filter lavcresample
[dummy] Was reinitialized: 22050Hz/2ch/s16le
[dummy] Was reinitialized: 22050Hz/2ch/s16le
Building audio filter chain for 16000Hz/2ch/s16le -> 22050Hz/2ch/s16le...
[dummy] Was reinitialized: 22050Hz/2ch/s16le
[dummy] Was reinitialized: 22050Hz/2ch/s16le
[libaf] Reallocating memory in module lavcresample, old len = 0, new len = 2308
[mpeg4 @ 00B00B48]hmm, seems the headers are not complete, trying to guess time_
increment_bits
[mpeg4 @ 00B00B48]my guess is 3 bits ;)
Pos:   0.0s      1f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [0:0] A/Vms 1/8 D
[mpeg4 @ 00B00B48]hmm, seems the headers are not complete, trying to guess time_
increment_bits
[mpeg4 @ 00B00B48]my guess is 2 bits ;)

1 duplicate frame(s)!
Muxer frame buffer sending 21 frame(s) to the muxer.
VIDEO CODEC ID: 22
AUDIO CODEC ID: 15001, TAG: 0
MUXER_LAVF(audio stream) frame_size: 576, scale: 576, sps: 22050, rate: 22050, c
tx->block_align = stream->wf->nBlockAlign; 0=576 stream->wf->nAvgBytesPerSec:599
9
Writing header...
[flv @ 00BFDCC4]dimensions not set

-------

then mencoder coredumped.


> 
> On Tue, Jun 27, 2006 at 05:29:54PM +0200, Nico Sabbi wrote:
> > Jiang Hong wrote:
> > >Hi,
> > >
> > >It's not a real patch but only a workaround.
> > >
> > >  
> > 
> > post the full output of mencoder -v ... please
> 
> And don't reply into an existing thread for new bug reports/patches!!!
> 
> Rich
> 
> _______________________________________________
> MEncoder-users mailing list
> MEncoder-users at mplayerhq.hu
> http://lists.mplayerhq.hu/mailman/listinfo/mencoder-users


-- 
Jiang Hong <netex at 163.com>

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