converting mpg2 -> divx avi (mencoder)

[dcist]

Hi, I', attempting to convert a mpg2 file to divx or xvid avi. I used the default options for the mencoder divix preset, and checked the 5 sec test clip box. I get a 0 kb file. If I usethe ffmpeg xvid or divix preset I get a file w/ no audio. source file plays fine on windows (i donot have a mpeg2 codec for quicktime).

My system is mac mini (intel) core duo, 1 gb ram. FFMPEGX version is 0.0.9w, using the intel binaries for the requisite apps downloaded from the main ffmpegx site.

Any ponters to get the mencoder or ffmpeg presets to work would be greatly appreciated.

here is the output info from the mencoder divix log:

Encoding started on Tue Jun 13 11:14:29 EDT 2006
MEncoder dev-CVS-060307-04:23-4.0.1 (C) 2000-2006 MPlayer Team
FIXME:Hardenabling SSE and SSE2 without detection
Mac OSX static build for ffmpegX
CPU: Intel (Family: 6, Stepping: 8)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2
init_freetype
get_path('font/font.desc') -> '/Users/dirvine/.mplayer/font/font.desc'
Font /usr/local/share/mplayer/font/font.desc loaded successfully! (206 chars)
Using MMX (with tiny bit MMX2) Optimized OnScreenDisplay
[file] File size is 722048212 bytes
STREAM: [file] /Volumes/LaCie 1/Media/TV/BATTLESTAR GALACTICA/Season 02/01.mpg
STREAM: Description: File
STREAM: Author: Albeu
STREAM: Comment: based on the code from ??? (probably Arpi)
success: format: 0 data: 0x0 - 0x2b0994d4
Checking for YUV4MPEG2
ASF_check: not ASF guid!
Checking for NuppelVideo
Checking for REAL
The selected video_out device is incompatible with this codec.
Try adding the scale filter, e.g. -vf spp,scale instead of -vf spp.
Searching demuxer type for filename /Volumes/LaCie 1/Media/TV/BATTLESTAR GALACTICA/Season 02/01.mpg ext: .mpg
Checking for Nullsoft Streaming Video
Checking for MOV
Checking for VIVO
header block 1 size: 0
Checking for PVA
Checking for MPEG-TS...
TRIED UP TO POSITION 71212, FOUND 47, packet_size= 0, SEEMS A TS? 0
Checking for LMLM4 Stream Format
Invalid packet in LMLM4 stream: ch=0 size=1140851704
LMLM4 Stream Format not found
system stream synced at 0xD (13)!
==> Found video stream: 0
==> Found audio stream: 0
MPEG Stream reached EOF
ds_fill_buffer: EOF reached (stream: video)
MPEG-PS file format detected.
Searching for sequence header... OK!
VIDEO: MPEG2 480x480 (aspect 2) 29.970 fps 15000.0 kbps (1875.0 kbyte/s)
[V] filefmt:2 fourcc:0x10000002 size:480x480 fps:29.97 ftime:=0.0334
================================================== ========================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
dec_audio: Allocating 4608 + 65536 = 70144 bytes for output buffer.
LAME 3.98 (alpha 3, Apr 14 2006 03:50:35) 32bits (http://www.mp3dev.org/)
neric C decore!
MP3lib: init layer2&3 finished, tables done
MPEG 1.0, Layer II, 44100 Hz 192 kbit Stereo, BPF: 626
Channels: 2, copyright: No, original: No, CRC: No, emphasis: 0
AUDIO: 44100 Hz, 2 ch, s16le, 192.0 kbit/13.61% (ratio: 24000->176400)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
================================================== ========================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
warning: alpha versions should be used for testing only
Using polyphase lowpass filter, transition band: 16452 Hz - 17032 Hz
misc:
scaling: 0.95
ch0 (left) scaling: 0
ch1 (right) scaling: 0
filter type: 0
quantization: xr^3/4
huffman search: normal
experimental Y=0
...
stream format:
MPEG-1 Layer 3
2 channel - joint stereo
padding: off
constant bitrate - CBR
...
psychoacoustic:
using psychoacoustic model: 1
psychoacoustic model: NSPsytune
lter: [scale w=640 h=352]
SwScale params: 640 x 352 (-1=no scaling)
================================================== ========================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 480 x 480 (preferred colorspace: Mpeg PES)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
SwScale params: -1 x -1 (-1=no scaling)
ot relevant)
using short blocks: channel coupled
subblock gain: 1
adjust masking: 0 dB
adjust masking short: 0 dB
quantization comparison: 9
^ comparison short blocks: 9
noise shaping: 2
^ amplification: 0
^ stopping: 0
ATH: using
^ type: 4
^ shape: 4 (only for type 4)
^ level adjustement: -0.3
^ adjust type: 3
^ adjust sensitivity power: 1.000000
^ adapt threshold type: 2
experimental psy tunings by Naoki Shibata
adjust masking bass=0 dB, alto=0 dB, treble=0 dB, sfb21=0 dB
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))
================================================== ========================
Forcing output fourcc to 58564944 [DIVX]
Building audio filter chain for 44100Hz/2ch/s16le -> 48000Hz/0ch/??...
[libaf] Adding filter dummy
[dummy] Was reinitialized: 44100Hz/2ch/s16le
[libaf] Adding filter lavcresample
using temporal masking effect: yes
interchannel masking ratio: 0.0002
...
MP3 audio selected
Was reinitialized: 48000Hz/2ch/s16le
[dummy] Was reinitialized: 48000Hz/2ch/s16le
Building audio filter chain for 44100Hz/2ch/s16le -> 48000Hz/2ch/s16le...
[dummy] Was reinitialized: 48000Hz/2ch/s16le
[dummy] Was reinitialized: 48000Hz/2ch/s16le
[libaf] Reallocating memory in module lavcresample, old len = 0, new len = 2308
VDec: vo config request - 480 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.
VO Config (480x480->640x480,flags=0,'MPlayer',0x32315659)
REQ: flags=0x441 req=0x0
SwScaler: reducing / aligning filtersize 2 -> 4
SwScaler: reducing / aligning filtersize 2 -> 4

[TugBoat]

I had similar results, you might want to *read this*. At this point your easiest fix would probably be to encode the audio then mux the video and audio in D-Vision.

Before you start you might want to change the name of your mencoder Video only AVI that you've already made. ffmpegX might use the default name for the audio file you're going to make and overwrite your existing video only file in the process.

It looks like you want mp3 audio. Load your source movie into ffmpegX then choose the 'Movie audio to mp3' preset. Set the Audio Hz to match the source, adjust the bitrate, then encode. You might have to add the .mp3 extension to the output file. Then go to D-Vision and use the Add audio track tool to mux the files.

Note: Setting the Audio Hz is important, you want to avoid this line from your first encode;
Building audio filter chain for 44100Hz/2ch/s16le -> 48000Hz/2ch/s16le...

Also; Kill the spaces between the LaCie and 1, BATTLESTAR and GALACTICA, Season and 02/01.mpg, you shouldn't have any spaces in the file names;
STREAM: [file] /Volumes/LaCie 1/Media/TV/BATTLESTAR GALACTICA/Season 02/01.mpg

[dcist]

Thanks for the pointers. However I'd argue my easiest course of action would be to boot my PC and use it to convert the file =) I just wanted to see if this was a bug in ffmpegX or if I was incorrectly setting things up.

One thing I find odd though is that i get the video only when using ffmpeg as the encoder, and i get nothing with mencoder--this sounds like the exact oposite of what you were seeing.

[TugBoat]

Yeah, I'm not use to mencoder but I decided to try it cause other people in that thread were using it. I also decided to try a Commercial VOB for source to avoid what some people might call suspect AVIs. Even though the AVIs work fine in everything.

With the ffmpeg encoder it sees the Audio Track 0 as DTS and track 1 as 5.1 AC3. I used Audio track 1 in XviD ffmpeg. For some reason I can't get mencoder to see an any Audio track. I even used MPEG Streamclip to convert the VOB to MPEG+AC3 but I still can't get mencoder to see the AC3 track that everything else sees fine. I dunno...

This is from mencoder using the Streamclip Mpeg/AC3 source.

Encoding started on Tue Jun 13 15:15:40 EDT 2006
MEncoder dev-CVS-051126-18:35-3.3 (C) 2000-2005 MPlayer Team
Mac OSX static build for ffmpegX
AltiVec found
CPU: PowerPC
success: format: 0 data: 0x0 - 0x1f85da7f
MPEG-PS file format detected.
Maybe you are playing a non-interleaved stream/file or the codec failed?
For AVI files, try to force non-interleaved mode with the -ni option.
Too many video packets in the buffer: (476 in 8399580 bytes).
MPEG: No audio stream found -> no sound.
VIDEO: MPEG2 720x480 (aspect 3) 29.970 fps 8000.0 kbps (1000.0 kbyte/s)
[V] filefmt:2 fourcc:0x10000002 size:720x480 fps:29.97 ftime:=0.0334
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [scale w=640 h=272]
Crop: 720 x 362, 0 ; 56
================================================== ========================
The selected video_out device is incompatible with this codec.
Also try adding the scale filter, e.g. -vf spp,scale instead of -vf spp.
s] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 480 (preferred colorspace: Mpeg PES)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
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))
================================================== ========================
Forcing output fourcc to 58564944 [XVID]
VDec: vo config request - 720 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
SwScaler: FAST_BILINEAR scaler, from Planar YV12 to Planar YV12 using AltiVec
videocodec: libavcodec (640x272 fourcc=58564944 [XVID])
1 duplicate frame(s)!
Writing AVI header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
1 duplicate frame(s)!
demux_mpg: 24000/1001fps progressive NTSC content detected, switching framerate.
VDec: vo config request - 720 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
1 duplicate frame(s)!
demux_mpg: 30000/1001fps NTSC content detected, switching framerate.
Warning! FPS changed 23.976 -> 29.970 (-5.994005) [4]
Flushing video frames
Writing AVI index...
Fixing AVI header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Video stream: 1156.278 kbit/s (144534 B/s) size: 170781999 bytes 1181.598 secs 28330 frames
Encoding completed on Tue Jun 13 15:24:42 EDT 2006

[TugBoat]

Hey, I got one to work!

I used the same Streamclip MPEG for source, chose XviD ffmpeg, did the auto crop as the only change from the preset. That means it encoded the audio as MP3, 128kbs, 48000 (same as the AC3), stereo, CBR. In the other thread I was using Audio Passthrough to save the 5.1 AC3. Maybe We're onto something?

Edit: Yep, if I encode the exact same file and use Audio Passthrough I get a 2 Day Audio track. Which of course doesn't work....
8)

FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Tue Jun 13 16:11:58 EDT 2006
Mac OSX universal build for ffmpegX
libavutil version: 49.0.0
libavcodec version: 51.9.0
libavformat version: 50.4.0
Input #0, mpeg, from '/Volumes/Video/VTS_01_7.mpeg':
Duration: N/A, start: 1.000000, bitrate: N/A
Stream #0.0[0x1e0], 29.97 fps(r): Video: mpeg2video, yuv420p, 720x480, 9800 kb/s
Stream #0.1[0x80]: Audio: ac3, 48000 Hz, 5:1, 448 kb/s
Output #0, avi, to '/Volumes/Video/VTS_01_7.mpeg.ff.avi':
Stream #0.0, 23.98 fps(c): Video: xvid, yuv420p, 640x272, q=2-9, 1171 kb/s
Stream #0.1: Audio: mp3, 48000 Hz, stereo, 128 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
bench: utime=1189.663s
video:166818kB audio:18453kB global headers:0kB muxing overhead 0.993044%
Tue Jun 13 16:32:42 EDT 2006