LAV Filters - DirectShow Media Splitter and Decoders

[Kurtnoise]

Originally Posted by Underground78

By the way, with this sample I can't get the E-AC3 audio to play (whereas it works with internal splitter), is this expected ?

should be fine with this...

[tetsuo55]

Originally Posted by Ger

Edit: To reproduce the crash, try clicking on different parts of the seek bar in quick succession with MPEG-2 TS samples with ffdshow for video. CTRL-LEFT and CTRL-RIGHT (I think those are the original shortcuts in MPC-HC for jumping a few seconds back/forward) also causes the crash, especially when done in quick succession. I've changed mine to just left/right arrow like in other players so I'm not 100 % sure what the default shortcut is anymore.

Sounds a lot like this decoder bug: http://sourceforge.net/apps/trac/mpc-hc/ticket/135

[Underground78]

Originally Posted by Kurtnoise

should be fine with this...

I don't know much but it would make sens. I think you have made a little typo, correct patch is probably : http://pastebin.ca/1919690 ...

[naomatrix]

OK, now soundtracks and subtitles switches quickly, but the screen at this point flashes black.
And there are new challenges - in PotPlayer(madVR) LAVFSplitter for .avi files does not connect to XVID decoder (also DivX,3viX) only built-in codecs, and on .TS interlaced 1080i MPEG2 (4:2:2) did not see Elecard Mpeg2 HD codec (also DScaler Mpeg2 Video Decoder).
The same problem in the MPC-HC(EVR), only sees the built-in decoders, possibly errors in the players or splitter ?
Another small question, is it possible to make an icon in the tray, as an indicator of spliter's work.
And yet another side issue, there is a problem with Cyrillic fonts in splitter's message.

Thanks.

[nevcairiel]

Originally Posted by naomatrix

OK, now soundtracks and subtitles switches quickly, but the screen at this point flashes black.

Like i said before, this is a side effect of the graph rebuild and cannot be avoided. I tested with Haali, and it does the same, i also get a short interruption of playback. I realize that the switch seems a bit slower then on Haali, but sadly there are no other open-source splitters that do this, so i'm building this from scratch, and seeing how this goes.

I can do one change, and on audio switch try to connect to the old filter. If it accepts the connection, just go with that one. This does however have one drawback. If you, for example, use ffdshow, it can handle most, if not all, audio formats, so once its in use, it would not switch to another decoder, even if it has a higher merit. Is this a real problem? To fix it, you would have to turn the formats you don't want ffdshow to handle off in its configuration, but not every filter supports this kind of configuration.
For me it would be fine, as i use ffdshow for most formats, and ffdshow supports turning off the formats i don't want, but i realize not everyone uses a simple setup like this.
I might make this behaviour configurable once i have a property page.

I'll look into the issue with mpeg2 decoder connections, its probably a simple thing thats wrong in the format header.

Btw. MPEG-TS is such a screwed up format, no wonder there is no good reference splitter for it.

[tetsuo55]

Originally Posted by nevcairiel

I can do one change, and on audio switch try to connect to the old filter. If it accepts the connection, just go with that one.

That actually sounds like a good idea for all the streams? do you think that is possible?

Also, the slower seeking might be partially caused by time based seeking vs keyframe based, maybe that should be ruled out first?

[nevcairiel]

Originally Posted by tetsuo55

That actually sounds like a good idea for all the streams? do you think that is possible?

Video and Subtitles already do this, as replacing the video decoder causes some issues, and the subtitle decoder is usually linked to the video decoder/renderer in some way.

Originally Posted by tetsuo55

Also, the slower seeking might be partially caused by time based seeking vs keyframe based, maybe that should be ruled out first?

MPEG-TS doesn't offer an easy way to get the keyframes like MKV does, this will need some custom magic to figure out where the GOP borders are.

[tetsuo55]

God MPEG-TS sucks

[naomatrix]

I tested the LAVFSplitter on this set of files http://thepiratebay.org/torrent/5155...les_%28v1.7%29 in PotPlayer/LAVF/MadVr/(XP SP3;Athlon64X25600+/Nvidia9800GT/LCD1400x900)
Overall not bad but there are exceptions:
in file 00019.m2ts (Interlace) splitter can not connect the LPCM audio track to any decoder, indicates error, while Haali quietly connects ffdshow audio decoder;
in VC-1_Sub.mkv does not connect to WMVideoDecoderDMO for "WVC1" FOURCC, like any other except the Pot's built-in(FFmpeg);

That's all, thank you

[kieranrk]

Originally Posted by nevcairiel

MPEG-TS doesn't offer an easy way to get the keyframes like MKV does, this will need some custom magic to figure out where the GOP borders are.

MPEG-TS has a keyframe flag in the header.

[nevcairiel]

Okay, a little status update on MPEG-TS support.

The remaining duration problems are bugs in libavformat. You can easily verify this yourself when running the files through ffplay or ffprobe (i can provide binaries later). TS isn't the best supported format in avformat, sorry.
I have some plans in mind that might improve this situation, but i don't want to go into specifics just yet. It probably will be some time before you hear of this again, so much stuff to do first!

I'm working on a fix for the MPEG-2 headers to properly connect to other filters, and i'll try to fix VC-1 to work with the MS DMO decoder. About the MPEG2 crash .. i'll try to reproduce this first.

Also, i haven't forgotten about all the non-TS bugs, and i'm looking at them too.

[hoborg]

I updated my post - tested on 0.5 now.

[Virtual_ManPL]

Finally someone make splitter from scratch to replace buggy Haali and not developed Gabest splitter

Feature request:
1. Tray icon to easily manage streams and chapters (like in Haali)
2. Support for indexless, metadateless or other broken or unfinished files
3. Ogg splitter


Bugs:

1.
Unicode support is missing



2.
Audio isn't recognized in this file
DOWNLOAD

Error in MPC-HC

C:\Documents and Settings\Virtual_ManPL\Pulpit\Lovers End [H264].mkv::Audio

Media Type 0:
--------------------------
Audio: Vorbis (deprecated) 48000Hz stereo

AM_MEDIA_TYPE: 
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: Unknown GUID Name {CDDCA2D5-6D75-4F98-840E-737BEDD5C63B}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 256000
cbFormat: 3779

WAVEFORMATEX:
wFormatTag: 0x6771
nChannels: 2
nSamplesPerSec: 48000
nAvgBytesPerSec: 0
nBlockAlign: 4
wBitsPerSample: 16
cbSize: 3761 (extra bytes)

pbFormat:
0000: SOME_TOO_LONG_CODE_TO_PASTE_IT_HERE

File info

General
Complete name                    : C:\Documents and Settings\Virtual_ManPL\Pulpit\Lovers End [H264].mkv
Format                           : Matroska
File size                        : 36.6 MiB
Duration                         : 4mn 14s
Overall bit rate                 : 1 208 Kbps
Encoded date                     : UTC 2006-06-09 22:24:38
Writing application              : mkvmerge v1.7.0 ('What Do You Take Me For') built on Apr 28 2006 17:20:19
Writing library                  : libebml v0.7.7 + libmatroska v0.8.0

Video
ID                               : 1
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : High@L5.1
Format settings, CABAC           : Yes
Format settings, ReFrames        : 8 frames
Muxing mode                      : Container profile=Unknown@5.1
Codec ID                         : V_MPEG4/ISO/AVC
Duration                         : 4mn 14s
Bit rate                         : 1 000 Kbps
Width                            : 848 pixels
Height                           : 480 pixels
Display aspect ratio             : 16:9
Frame rate                       : 23.976 fps
Color space                      : YUV
Chroma subsampling               : 4:2:0
Bit depth                        : 8 bits
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.102
Stream size                      : 29.1 MiB (79%)
Writing library                  : x264 core 47 svn-527
Encoding settings                : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x133 / me=hex / subme=7 / brdo=1 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / chroma_qp_offset=0 / slices=1 / nr=0 / decimate=1 / bframes=3 / b_pyramid=1 / b_adapt=1 / b_bias=0 / direct=1 / wpredb=1 / bime=1 / keyint=250 / keyint_min=25 / scenecut=40 / rc=2pass / bitrate=1000 / ratetol=4.0 / rceq='blurCplx^(1-qComp)' / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30
Language                         : English

Audio
ID                               : 2
Format                           : Vorbis
Format settings, Floor           : 1
Codec ID                         : A_VORBIS
Duration                         : 4mn 14s
Bit rate mode                    : Constant
Bit rate                         : 224 Kbps
Channel(s)                       : 2 channels
Sampling rate                    : 48.0 KHz
Stream size                      : 6.79 MiB (19%)
Writing library                  : libVorbis 1.1.1/1.1.2 (UTC 2005-03-04)

3.
This file didn't want to play in EVR Custom and in other renderers like VMR7/9 or overlay I hear only audio, video seems missing, but decoder are loaded
DOWNLOAD

File info

General
Complete name                    : C:\Documents and Settings\Virtual_ManPL\Pulpit\Time.mov
Format                           : MPEG-4
Format profile                   : Base Media / Version 2
Codec ID                         : mp42
File size                        : 5.57 MiB
Duration                         : 1mn 31s
Overall bit rate                 : 510 Kbps
Encoded date                     : UTC 2008-06-03 01:46:57
Tagged date                      : UTC 2008-06-03 01:46:57

Video
ID                               : 2
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : Baseline@L2.1
Format settings, CABAC           : No
Format settings, ReFrames        : 1 frame
Codec ID                         : avc1
Codec ID/Info                    : Advanced Video Coding
Duration                         : 1mn 30s
Bit rate mode                    : Variable
Bit rate                         : 388 Kbps
Maximum bit rate                 : 1 794 Kbps
Width                            : 480 pixels
Height                           : 320 pixels
Display aspect ratio             : 3:2
Frame rate mode                  : Constant
Frame rate                       : 29.970 fps
Color space                      : YUV
Chroma subsampling               : 4:2:0
Bit depth                        : 8 bits
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.084
Stream size                      : 4.21 MiB (76%)
Title                            : (C) 2007 Google Inc. v06.24.2007.
Encoded date                     : UTC 2008-06-03 01:46:57
Tagged date                      : UTC 2008-06-03 01:46:57

Audio
ID                               : 1
Format                           : AAC
Format/Info                      : Advanced Audio Codec
Format version                   : Version 4
Format profile                   : LC
Format settings, SBR             : No
Codec ID                         : 40
Duration                         : 1mn 31s
Bit rate mode                    : Variable
Bit rate                         : 122 Kbps
Maximum bit rate                 : 209 Kbps
Channel(s)                       : 2 channels
Channel positions                : Front: L R
Sampling rate                    : 44.1 KHz
Stream size                      : 1.33 MiB (24%)
Title                            : (C) 2007 Google Inc. v06.24.2007.
Encoded date                     : UTC 2008-06-03 01:46:57
Tagged date                      : UTC 2008-06-03 01:46:57

[Underground78]

Originally Posted by nevcairiel

Okay, a little status update on MPEG-TS support.

The remaining duration problems are bugs in libavformat. You can easily verify this yourself when running the files through ffplay or ffprobe (i can provide binaries later). TS isn't the best supported format in avformat, sorry.
I have some plans in mind that might improve this situation, but i don't want to go into specifics just yet. It probably will be some time before you hear of this again, so much stuff to do first!

I'm working on a fix for the MPEG-2 headers to properly connect to other filters, and i'll try to fix VC-1 to work with the MS DMO decoder. About the MPEG2 crash .. i'll try to reproduce this first.

Also, i haven't forgotten about all the non-TS bugs, and i'm looking at them too.

Ok, thanks a lot for your work.

As there will be probably a lot of bug reports that you won't have time to look at rapidly, don't you think it could be great to have some sort of bug tracker to keep trace of them better than a thread where it will gradually become very difficult to find them ?

[MatMaul]

Originally Posted by nevcairiel

The remaining duration problems are bugs in libavformat. You can easily verify this yourself when running the files through ffplay or ffprobe (i can provide binaries later). TS isn't the best supported format in avformat, sorry.

vlc demuxer seems to be a lot better in that regard.

[Underground78]

Originally Posted by MatMaul

vlc demuxer seems to be a lot better in that regard.

Well, VLC demuxer is quite strange too. It does not seem to correctly detect the duration since it displays 00:00 but seeking works, I don't understand how it can be possible so maybe it is just a display problem ...

[nevcairiel]

Originally Posted by Underground78

As there will be probably a lot of bug reports that you won't have time to look at rapidly, don't you think it could be great to have some sort of bug tracker to keep trace of them better than a thread where it will gradually become very difficult to find them ?

I was storing important links in some text file so far. but i've been thinking about a proper project page before, and i'll just set it up on googlecode or so.

[clsid]

The readme mentions that it is needed to uninstall Haali. That is actually not needed at all. Simply use this registry key to enable use of LAVFSplitter:

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Media Type\Extensions\.mkv]
"Source Filter"="{B98D13E7-55DB-4385-A33D-09FD1BA26338}"

May I suggest to enable runtime CPU detect and not force compilation for a specific CPU type. The filter currently does not work on older CPUs.

Can you give a list of which entries in the following key correspond to which file formats? That will allow the testers here to tweak the filter registration until a configuration dialog is implemented.
HKEY_CLASSES_ROOT\Media Type\{e436eb83-524f-11ce-9f53-0020af0ba770}\{9C53931C-7D5A-4A75-B26F-4E51654DB2C0}

An INI file could be useful to specify for which formats the filter should register itself during installation/regsvr32.

[clsid]

Figured out the list myself:

HKEY_CLASSES_ROOT\Media Type\{e436eb83-524f-11ce-9f53-0020af0ba770}\{9C53931C-7D5A-4A75-B26F-4E51654DB2C0}
0 - Matroska - 0,4,,1A45DFA3
1 - MPEG - 0,16,FFFFFFFFF100010001800001FFFFFFFF,000001BA2100010001800001000001BB
2 - MPEG - 0,5,FFFFFFFFC0,000001BA40
3 - MPEG - 0,8,fffffc00ffe00000,4156000055000000
4 - MPEG - 0,1,,47,188,1,,47,376,1,,47
5 - MPEG - 4,1,,47,196,1,,47,388,1,,47
6 - MPEG - 0,4,,54467263,1660,1,,47
7 - AVI - 0,4,,52494646,8,4,,41564920
8 - AVI - 0,4,,52494646,8,4,,41564958
9 - MP4 - (ftyp) - 4,4,,66747970
10 - MP4 (moov) - 4,4,,6d6f6f76
11 - MP4 (mdat) - 4,4,,6d646174
12 - MP4 (skip) - 4,4,,736b6970
13 - MP4 (wide mdat) - 4,12,ffffffff00000000ffffffff,77696465027fe3706d646174
14 - MP4 (raw) - 3,3,,000001
15 - FLV - 0,4,,464C5601

[XhmikosR]

Does anybody know why the splitter cannot be registered with Inno Setup? Using a simple script like this fails with a RegSvr32 failed with exit code 0x3 message.