any ways to convert from avi to asf very quickly?

[George2]

Hello everyone,

I have an avi file, since the index block is stored at the end of media file, so it is not convenient for streaming. I want to convert avi file to other formats so that streaming is better supported. But I tried to convert from avi to flv/mp4 takes a long time (almost the same length of time as the video length itself). My question is whether there is a very quick way to convert from avi file to asf file very quickly -- just add a container and simply do a file copy?

BTW some more background of my streaming issues (I am using IIS 7.0 Media Pack): the streaming issue I met with is, I cannot jump to an arbitrary location of the media if the media is not buffered already. After some search work, I think it may be caused by the index block of avi file is stored at the end, so Windows Media Player could not jump to any arbitrary location before buffered locally.

Here is an example, if my recorded avi video is 10 mins, and now I am playing to the 4th mins, and the local buffered streaming media is buffered to the 5th mins, I cannot jump to any time after the 5th mins, like the 7th mins in Windows Media Player.

thanks in advance,
George

[Midzuki]

VidTo Asf

vidtoasf -flag value ...

Flags are:
  -in         file.ext       Input Video file (required)
  -out        file.asf       Output Video file (default: in file
                             with .asf in place of extension)
  -leadtime   milliseconds   Maximum time before playing begins
                             (default: 1000)
  -video      stream         Stream Number of the video stream to
                             use (Useful if an AVI has more than one)
                             (default: use the only video stream
                             in the AVI)
  -audio      stream         Same as -video, but for audio streams
  -script     filename       Specify a script file giving urls and
                             markers (default: none)
  -seekable   on/off         Create a seekable file, even if there
                             are not enough key frames (default: off)
  -audiofile  filename       Specify an audio file to use in place
                             of the audio in the video file (default:
                             use the audio from the video file)

HTH.

[George2]

Thanks Midzuki,

1.

An issue with your command is, in my experiment, it takes still long time to convert a long avi file, i.e. the bigger avi file, the longer time. Is your command doing things like re-encoding?

2.

How do you think of this command? My purpose is just to convert avi to asf format as soon as possible, I could keep original format or even sacrifice quality for speed. Any comments?

ffmpeg.exe -i test.avi -acodec copy -vcodec copy test.asf

VidTo Asf

vidtoasf -flag value ...

Flags are:
  -in         file.ext       Input Video file (required)
  -out        file.asf       Output Video file (default: in file
                             with .asf in place of extension)
  -leadtime   milliseconds   Maximum time before playing begins
                             (default: 1000)
  -video      stream         Stream Number of the video stream to
                             use (Useful if an AVI has more than one)
                             (default: use the only video stream
                             in the AVI)
  -audio      stream         Same as -video, but for audio streams
  -script     filename       Specify a script file giving urls and
                             markers (default: none)
  -seekable   on/off         Create a seekable file, even if there
                             are not enough key frames (default: off)
  -audiofile  filename       Specify an audio file to use in place
                             of the audio in the video file (default:
                             use the audio from the video file)

HTH.

regards,
George

[Midzuki]

No, vidtoasf.exe does not re-encode.
Try to run it under the "Windows XP compatibility mode",
maybe it does not like Vista (even though it's from Microsoft too ).
Another good option would be the SolveigMM ASF Muxer.

ffmpeg.exe -i test.avi -acodec copy -vcodec copy test.asf

Should work, too. If it runs faster than vidtoasf under Windows Vista,
fine. But you'd better always test the outputs from ffmpeg --- sometimes,
the remuxed files can only be played by ffplay itself.

Good-luck!

[poisondeathray]

You can try mp4box (yamb is the GUI) to re-wrap the video into mp4 container (no re-encoding, should only take a minute). It places the moov atom at the beginning by default for streaming. Note not all formats are supported, so it depends what video & audio formats you are using in the avi file.

[George2]

Thanks Midzuki,

I am using command the following command to convert from avi to asf, and conversion is very fast (30 seconds), but when I use Windows Media Player to play the generated asf file, there is error like this, any ideas? What is the strange CRAN codec?

Output from vidtoasf,

vidtoasf.exe -in capture-1.avi -out capture-1.asf
Stream0: capture-1.avi Video #1 (Video - 5.0000 fps) (Used)
Stream1: capture-1.avi Audio #1 (Audio - 22050 Hz, 44100 bytes/sec) (Used)
Calculating bitrate.............
Bitrate: 7800000  Packetsize: 57344
Building ASF..................................................The ASFChop ocx ha
s not been registered.

Warning: No index built.

Output from Windows Media Player,

Windows Media Player Error Message Help
You've encountered error message C00D10D1 while using Windows Media Player. The following information might help you troubleshoot the issue. 

Codec is missing
Windows Media Player cannot play the file (or cannot play either the audio or video portion of the file) because the CRAN codec is not installed on your computer.

The missing codec might be available to download from the Internet. To search for the CRAN codec, see WMPlugins.com.

No, vidtoasf.exe does not re-encode.
Try to run it under the "Windows XP compatibility mode",
maybe it does not like Vista (even though it's from Microsoft too ).
Another good option would be the SolveigMM ASF Muxer.

ffmpeg.exe -i test.avi -acodec copy -vcodec copy test.asf

Should work, too. If it runs faster than vidtoasf under Windows Vista,
fine. But you'd better always test the outputs from ffmpeg --- sometimes,
the remuxed files can only be played by ffplay itself.

Good-luck!

regards,
George

[George2]

Sorry Midzuki, another quick question, do you know where to download the binary for ffmpeg? On my current machine, there is no compiler. I want to have a binary and not build from source.

No, vidtoasf.exe does not re-encode.
Try to run it under the "Windows XP compatibility mode",
maybe it does not like Vista (even though it's from Microsoft too ).
Another good option would be the SolveigMM ASF Muxer.

ffmpeg.exe -i test.avi -acodec copy -vcodec copy test.asf

Should work, too. If it runs faster than vidtoasf under Windows Vista,
fine. But you'd better always test the outputs from ffmpeg --- sometimes,
the remuxed files can only be played by ffplay itself.

Good-luck!

regards,
George

[George2]

Thanks poisondeathray!

Mp4 is also a format which I like! I have downloaded the mp4box tool and have a quick try. The tool let me input track number. I did not find comprehensive help for mp4box tool, and if I want to convert both video and audio, what command line option should I use?

(in my sample, I want to convert capture-1.avi to an mp4 format to make streaming better)

MP4Box.exe capture-1.avi
Import probing results for capture-1.avi:
File has 2 tracks
        Track 1 type: Video (CRAM)
        Track 2 type: Audio (....)

You can try mp4box (yamb is the GUI) to re-wrap the video into mp4 container (no re-encoding, should only take a minute). It places the moov atom at the beginning by default for streaming. Note not all formats are supported, so it depends what video & audio formats you are using in the avi file.

regards,
George

[poisondeathray]

mp4box -add movie.avi#video:fps=23.976 -add movie.avi#audio -new output.mp4

Documentation:
http://gpac.sourceforge.net/doc_mp4box.php

For ffmpeg autobuilds
http://ffmpeg.arrozcru.org/autobuilds/

For binary to compile
http://www.ffmpeg.org/download.html
http://ffmpeg.arrozcru.org/autobuilds/extra/mingw32/

[Midzuki]

I am using command the following command to convert from avi to asf, and conversion is very fast (30 seconds), but when I use Windows Media Player to play the generated asf file, there is error like this, any ideas? What is the strange CRAN codec?

Output from vidtoasf,

vidtoasf.exe -in capture-1.avi -out capture-1.asf
Stream0: capture-1.avi Video #1 (Video - 5.0000 fps) (Used)
Stream1: capture-1.avi Audio #1 (Audio - 22050 Hz, 44100 bytes/sec) (Used)
Calculating bitrate.............
Bitrate: 7800000  Packetsize: 57344
Building ASF..................................................The ASFChop ocx ha
s not been registered.

Warning: No index built.

Output from Windows Media Player,

Windows Media Player Error Message Help
You've encountered error message C00D10D1 while using Windows Media Player. The following information might help you troubleshoot the issue. 

Codec is missing
Windows Media Player cannot play the file (or cannot play either the audio or video portion of the file) because the CRAN codec is not installed on your computer.

The missing codec might be available to download from the Internet. To search for the CRAN codec, see WMPlugins.com.

Really, me too had to learn thru the difficult way

find the file asfchop.ocx, copy it into the system32 directory,
then run the command "regsvr32 asfchop.ocx"

otherwise vidoasf will not work properly
( over here, it didn't work at all before registering asfchop.ocx )

As for WMP misbehaviors, I really have no idea of how it discoverd/invented
the "CRAN" codec (it has always been known as CRAM)

Also, "5.000fps" <--- are you sure

Please read this carefully:

When you convert a low frame rate .avi file into a .asf file with the
command line utility Vidtoasf.exe, the file size of the .asf file
increases dramatically.

Back to the top
CAUSE
With low frame rate files, the first frame of the file is usually very
large. This large frame must be sent within one second (the default)
to the client. In order for this to be accomplished, the bit rate of
the file is raised and filler is added to the file. The filler is what
raises the bit rate and increases the file size.

Back to the top
RESOLUTION
When you use Vidtoasf.exe with low frame rate files, increase the lead
time parameter from 1000 milliseconds (default) to a larger number.
(Note: You probably won't see any benefit above 4000 milliseconds.) By
increasing the lead time for the file, there is more time available to
stream the first frame of the video when the file is streamed to a
client. An example of this would be as follows:

vidtoasf.exe -in myfile.avi -out myfile.asf -leadtime 3000

BTW, have you given a try to Solveig ASF Muxer?
It should give you less headaches, I hope.

As for ffmpeg.exe, I'm using the latest "official" release (version 0.5) ---
--- even though Chris K has very-good reasons to avoid it

https://forum.videohelp.com/topic365959.html#1952609


###

[poisondeathray]

I agree with midzuki, solveig asf muxer is the way to go if your video format is supported in .asf . There is a free version floating around if you search. You can add audio in later with windows media stream editor

If it is indeed CRAM (as detected by your mp4box dialog), not CRAN , that should come installed with Windows. Otherwise you can enable CRAM in the ffdshow configuration and use it as a directshow decoder for WMP

[George2]

Thanks poisondeathray,

1.

mp4box -add movie.avi#video:fps=23.976 -add movie.avi#audio -new output.mp4

How do you get the magic numbers like 23.976?

2.

For ffmpeg autobuilds
http://ffmpeg.arrozcru.org/autobuilds/

For binary to compile
http://www.ffmpeg.org/download.html
http://ffmpeg.arrozcru.org/autobuilds/extra/mingw32/

I have tried but met with an issue when playing the generated asf file by ffmpeg. Any ideas? Here is my steps and error message.

I have tried to get the binary of ffmpeg from,

http://ffmpeg.arrozcru.org/autobuilds/ffmpeg-latest-mingw32-static.tar.bz2

then run the following command,

    C:\software\ffmpeg-latest-mingw32-static\bin>ffmpeg.exe -i test.avi -acodec copy
     -vcodec copy test.asf
    FFmpeg version SVN-r18506, Copyright (c) 2000-2009 Fabrice Bellard, et al.
      configuration: --enable-memalign-hack --prefix=/mingw --cross-prefix=i686-ming
    w32- --cc=ccache-i686-mingw32-gcc --target-os=mingw32 --arch=i686 --cpu=i686 --e
    nable-avisynth --enable-gpl --enable-zlib --enable-bzlib --enable-libgsm --enabl
    e-libfaac --enable-pthreads --enable-libvorbis --enable-libmp3lame --enable-libo
    penjpeg --enable-libtheora --enable-libspeex --enable-libxvid --enable-libfaad -
    -enable-libschroedinger --enable-libx264
      libavutil     50. 3. 0 / 50. 3. 0
      libavcodec    52.25. 0 / 52.25. 0
      libavformat   52.32. 0 / 52.32. 0
      libavdevice   52. 2. 0 / 52. 2. 0
      libswscale     0. 7. 1 /  0. 7. 1
      built on Apr 14 2009 04:04:47, gcc: 4.2.4
    Input #0, avi, from 'test.avi':
      Duration: 00:00:44.86, start: 0.000000, bitrate: 5291 kb/s
        Stream #0.0: Video: msvideo1, rgb555le, 1280x1024, 5 tbr, 5 tbn, 5 tbc
        Stream #0.1: Audio: pcm_s16le, 22050 Hz, mono, s16, 352 kb/s
    Output #0, asf, to 'test.asf':
        Stream #0.0: Video: CRAM / 0x4D415243, rgb555le, 1280x1024, q=2-31, 1k tbn,
    5 tbc
        Stream #0.1: Audio: pcm_s16le, 22050 Hz, mono, s16, 352 kb/s
    Stream mapping:
      Stream #0.0 -> #0.0
      Stream #0.1 -> #0.1
    Press [q] to stop encoding
    frame=  224 fps=222 q=-1.0 Lsize=   29426kB time=44.80 bitrate=5380.7kbits/s
    
    video:26910kB audio:1932kB global headers:0kB muxing overhead 2.023317%
    
    C:\software\ffmpeg-latest-mingw32-static\bin>

http://www.microsoft.com/windows/windowsmedia/player/webhelp/default.aspx?&mpver=11.0....nalid=C00D36E6

then have the following error when using Windows Media Player to play it, does anyone have any ideas?

http://www.microsoft.com/windows/windowsmedia/player/webhelp/default.aspx?&mpver=11.0....nalid=C00D36E6

regards,
George

[George2]

Thanks Midzuki!

1.

Where to get and what is asfchop.ocx? I find all places in my computer and vidtoasf package, there is no such file.

2.

As for WMP misbehaviors, I really have no idea of how it discoverd/invented
the "CRAN" codec (it has always been known as CRAM)

Maybe CRAN codec issue is caused by missing asfchop.ocx?

3.

Also, "5.000fps" <--- are you sure

Yes, I am sure. It is screen capture by Camtasia, and I set frame rate to 5 per second.

4.

As for ffmpeg.exe, I'm using the latest "official" release (version 0.5) ---
--- even though Chris K has very-good reasons to avoid it

https://forum.videohelp.com/topic365959.html#1952609


###

I have got ffmpeg and I posted my issue when play the asf file by ffmpeg just above this post, do you have any ideas?

regards,
George

[George2]

Thanks Midzuki,

I have just followed your advice to try Solveig ASF Muxer, but when I use TestMuxerApp.exe to open the avi file, there is the following error.

Any ideas what is wrong? Any additional setup needed for Solveig ASF Muxer?

Please check my attachment for more details about error information.

regards,
George

[George2]

Thanks poisondeathray,

1.

I agree with midzuki, solveig asf muxer is the way to go if your video format is supported in .asf .

I have tried but failed to open the avi file. I posted my error screen snapshot and other error information just above this post. Any ideas what is wrong?

2.

If it is indeed CRAM (as detected by your mp4box dialog), not CRAN , that should come installed with Windows. Otherwise you can enable CRAM in the ffdshow configuration and use it as a directshow decoder for WMP

Please check my screen snapshot. I have enabled CRAM. But failed to play the asf file in WMP. The error message from WMP is,

http://www.microsoft.com/windows/windowsmedia/player/webhelp/default.aspx?&mpver=11.0....09B&codec=CRAN

Any ideas what is wrong?

3.

I am very interested to learn more about ffdshow. What is its function? Manage all decoder codec on local machine or manage all decoder codec used by Windows Media Player or something function else?

regards,
George

[Midzuki]

George2 wrote:

Where to get and what is asfchop.ocx? I find all places in my computer and vidtoasf package, there is no such file.

I will upload a copy of "the damn binary" to this forum.

I have got ffmpeg and I posted my issue when play the asf file by ffmpeg just above this post, do you have any ideas?

As I had said some posts above:

you'd better always test the outputs from ffmpeg --- sometimes,
the remuxed files can only be played by ffplay itself.

asfchop.zip

[poisondeathray]

How do you get the magic numbers like 23.976?

It's just an example for syntax. If your fps is 5, then put 5. If you don't know , use mediainfo

Maybe you can upload a sample of your avi? You can cut a small section with vdub, using direct stream copy mode for audio & video

[George2]

Hi Midzuki,

1.

I have registered asfchop.ocx successfully, and then make a conversion from avi to asf. This time no warning/error from console which indicates no index building or something (you can compare with my previous output). Here is the output.

vidtoasf.exe -in capture-5.avi -out capture-5.asf
Stream0: capture-5.avi Video #1 (Video - 5.0000 fps) (Used)
Stream1: capture-5.avi Audio #1 (Audio - 22050 Hz, 44100 bytes/sec) (Used)
Calculating bitrate.........
Bitrate: 1150000  Packetsize: 14375
Building ASF.................................................

But currently I met with an issue when play this file in Windows Media Player. The error message is the following when play the asf file. Do you have any ideas how to fix this issue? I have uploaded my video file for your analysis.

http://www.microsoft.com/windows/windowsmedia/player/webhelp/default.aspx?&mpver=11.0....09B&codec=tscc

Windows Media Player Error Message Help
You've encountered error message C00D10D1 while using Windows Media Player. The following information might help you troubleshoot the issue. 

Codec is missing
Windows Media Player cannot play the file (or cannot play either the audio or video portion of the file) because the TechSmith Screen Capture Codec (tscc) codec is not installed on your computer.

The missing codec might be available to download from the Internet. To search for the TechSmith Screen Capture Codec (tscc) codec, see WMPlugins.com.

2.

I am interested in which party released asfchop.ocx? Could you help to provide the original party which release this cool stuff? I want to learn more by myself.

3.

As I had said some posts above:

you'd better always test the outputs from ffmpeg --- sometimes,
the remuxed files can only be played by ffplay itself.

I am very confused. ffmpeg in my knowledge is a codec converter tool. It should convert from one popular format into another popular format, the popular format should be supported by all standard/popular players (if they support the codec), but why you said the resulting converted media could only be played by ffplay? (in my understanding, ffplay is a kind of media player released by ffmpeg team, please correct me if I am wrong.)

regards and have a nice day,
George

capture-new.avi

[George2]

Thanks poisondeathray,

I have tried using the following command, but mp4 box will always crash. I am using Windows Vista x64 enterprise. I have uploaded both my avi video and my screen snapshot. I am using the following command with mp4 box. Any ideas what is wrong?

mp4box -add capture-new.avi#video:fps=5 -add capture-new.avi#audio -new capture-new.mp4

How do you get the magic numbers like 23.976?

It's just an example for syntax. If your fps is 5, then put 5. If you don't know , use mediainfo

Maybe you can upload a sample of your avi? You can cut a small section with vdub, using direct stream copy mode for audio & video

regards,
George

mp4boxerror.zip

[RonS [WINDOWS-TEAM]]

I’d recommend checking out the xillisoft product: http://www.download.com/Xilisoft-Video-Converter-Platinum/3000-2194_4-10535116.html . That’s a link to the video converter (I believe it does audio as well) on CNET’s Download.com.

Cheers,
Ron
Windows Outreach Team

[poisondeathray]

I don't think techsmith (tscc) is supported in mp4 container, and highly unlikely to be supported in .asf.

If you use mediainfo (view=>text) , it tells you info about your file. (tscc video , PCM audio) Instead of CRAM, enable techsmith in the ffdshow configuration, and your video will play in MPC, WMP11 or directshow players. And yes, ffdshow is a decoder in this scenario, but it is capable of a lot more eg. preprocessing , filtering, color correction etc...

In the future, if you are using camtasia to record, you can record directly to h264/aac by changing the settings, which is much better suited for streaming (smaller filesize and better quality, with moov atom at the beginning).

I'm not sure that you can do much to re-wrap you current file, you might have to bite the bullet and re-encode




EDIT: I take that back, the asf wrapper can support your format. (Done with the sdk version of solveig asf muxer - there is a trial available; the free beta version does work, you just have to register the .ax by using the .bat file). of course you need a directshow decoder for this to work (i.e. ffdshow)

captureasf.asf

[Midzuki]

why you said the resulting converted media could only be played by ffplay? (in my understanding, ffplay is a kind of media player released by ffmpeg team, please correct me if I am wrong.)

Because sometimes ffmpeg remuxes in "non-standard" ways ,
and as ffplay uses the same "basic engine" as ffmpeg, then, ...
For example, ffmpeg can indeed wrap VC-1 in a .MP4 file,
or even MLP audio in an MPG/VOB; ffplay supports such "beasts" natively,
Mplayer requires a little hex-edit of the "monsters", and that's all.
Don't know whether ffmpeg has ever created non-compliant ASF files,
but considering what I have just said, that possibility always exists.

\\\

[George2]

Hi poisondeathray,

1.

I have tried to play your attached asf file, met with the following error. Looks like WMP can not load tech smith codec correctly.

Here is the error informaiton URL, do you have any ideas? I have uploaded my two error screen snapshots for your analysis.

http://www.microsoft.com/windows/windowsmedia/player/webhelp/default.aspx?&mpver=11.0....09B&codec=tscc

2.

I totally agree with you recording to h264 is much better, but I have to record screen into .camrec format, then re-encode to h264 format. The re-encode process is very slow. It is why I choose to record to avi format, which could skip the re-encode process. Do you have any ideas skip the re-encode process and record video in h264 format directly other than record to avi format? I would like to follow your ideas if we could record to h264 directly. Maybe I need to install some h264 encoder to let Camtasia recorder to recognize it?

regards,
George

errs.zip

[George2]

Hi Midzuki,

I have tried to use ffmpeg. Here is my command and output from ffmpeg, seems ok.

ffmpeg.exe -i capture-5.avi -acodec
 copy -vcodec copy capture-5.asf
FFmpeg version SVN-r18506, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --enable-memalign-hack --prefix=/mingw --cross-prefix=i686-ming
w32- --cc=ccache-i686-mingw32-gcc --target-os=mingw32 --arch=i686 --cpu=i686 --e
nable-avisynth --enable-gpl --enable-zlib --enable-bzlib --enable-libgsm --enabl
e-libfaac --enable-pthreads --enable-libvorbis --enable-libmp3lame --enable-libo
penjpeg --enable-libtheora --enable-libspeex --enable-libxvid --enable-libfaad -
-enable-libschroedinger --enable-libx264
  libavutil     50. 3. 0 / 50. 3. 0
  libavcodec    52.25. 0 / 52.25. 0
  libavformat   52.32. 0 / 52.32. 0
  libavdevice   52. 2. 0 / 52. 2. 0
  libswscale     0. 7. 1 /  0. 7. 1
  built on Apr 14 2009 04:04:47, gcc: 4.2.4
Input #0, avi, from 'capture-5.avi':
  Duration: 00:01:06.80, start: 0.000000, bitrate: 499 kb/s
    Stream #0.0: Video: camtasia, rgb555le, 1024x768, 5 tbr, 5 tbn, 5 tbc
    Stream #0.1: Audio: pcm_s16le, 22050 Hz, mono, s16, 352 kb/s
Output #0, asf, to 'capture-5.asf':
    Stream #0.0: Video: tscc / 0x63637374, rgb555le, 1024x768, q=2-31, 1k tbn, 5
 tbc
    Stream #0.1: Audio: pcm_s16le, 22050 Hz, mono, s16, 352 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
Press [q] to stop encoding
frame=  333 fps=  0 q=-1.0 Lsize=    4482kB time=66.50 bitrate= 552.2kbits/s

video:1074kB audio:2864kB global headers:0kB muxing overhead 13.815020%

Here is what is wrong when I play capture-5.asf in Windows Media Player. Any ideas what is wrong?

http://www.microsoft.com/windows/windowsmedia/player/webhelp/default.aspx?&mpver=11.0....09B&codec=tscc

Windows Media Player Error Message Help
You've encountered error message C00D10D1 while using Windows Media Player. The following information might help you troubleshoot the issue. 

Codec is missing
Windows Media Player cannot play the file (or cannot play either the audio or video portion of the file) because the TechSmith Screen Capture Codec (tscc) codec is not installed on your computer.

The missing codec might be available to download from the Internet. To search for the TechSmith Screen Capture Codec (tscc) codec, see WMPlugins.com.

BTW: I have uploaded my original avi file, could you use any other tools to convert it to asf or some other format which support streaming well, like vidtoasf or something before?

regards,
George

capture-new.avi

[George2]

Ron, my requirements are,

1. my original avi file is not supporting streaming quite well, for example, I can not jump to a media play location when the location is not buffered yet;
2. I want to convert to streaming friendly format, but want to reduce the re-encode time as much as possible. So I am looking for some solution which could solve it by adding just a container (take very little time). But any other possible solution which takes little time to do format conversion is ok.

I have tried the Xilisoft Converter, seems it is still takes quite long time to convert avi to mp4. But maybe I am wrong for setting it. I have tried to convert 100M avi file which is about 30 mins, it takes about 20 mins. My target is conversion time should be around 15 seconds. Any good ideas or comments?

BTW: I have uploaded a sample video (a small one) for your better analysis.

]I’d recommend checking out the xillisoft product: http://www.download.com/Xilisoft-Video-Converter-Platinum/3000-2194_4-10535116.html . That’s a link to the video converter (I believe it does audio as well) on CNET’s Download.com.

regards,
George

Cheers,
Ron
Windows Outreach Team

capture-new.avi

[Midzuki]

Until proven otherwise, WMP 9 is designed to not accept
the Camtasia codec in an ASF file. I have transformed your
.AVI file into a .ASF one with both vidtoasf.exe and Solveig DS Filter,
and the resulting files played fine in VirtualDub, MPC Homecinema,
Mplayer, and even ActiveMovie (amovie.ocx).
OTOH, ffmpeg created a .ASF whose video part is 100% unwatchable garbage.

[poisondeathray]

1) The asf file works for me in WMP11 and MPC, is there a reason you are using WMP9 ? It also works fine in the players Midzuki listed, and several more e.g. kmplayer , vlc

2) You don't have to capture in .camrec, you have the option to capture to other .avi formats (assuming you are using camtasia studio , you didn't say which version?) e.g. h264vfw, wmv9 in avi, etc... it also depends how fast your system is, but if you are doing 5fps, most modern systems should be able to keep up.....e.g. you could record h264vfw in avi, then remux to .mp4. You can adjust all these settings in the options

3) And you should re-encode the audio; PCM audio is a waste of space/bitrate, especially if these are meant to be tutorials

[George2]

Hi Midzuki,

I have some new findings which solve my issue. I am trying to use MPC player from the link below and I find even if avi file streaming is supported. So cool. Any ideas or comments? You can try MPC player with my uploaded avi file.

http://sourceforge.net/projects/guliverkli/

Another question, is it possible to embed MPC player into web browser? I want user to have web based experience. Thanks.

Until proven otherwise, WMP 9 is designed to not accept
the Camtasia codec in an ASF file. I have transformed your
.AVI file into a .ASF one with both vidtoasf.exe and Solveig DS Filter,
and the resulting files played fine in VirtualDub, MPC Homecinema,
Mplayer, and even ActiveMovie (amovie.ocx).
OTOH, ffmpeg created a .ASF whose video part is 100% unwatchable garbage.

capture-new.avi

[George2]

Thanks poisondeathray,

1. I have tried to use MPC player, and it works with streaming to arbitrary location even with avi files. It is so magic. I have a further question, how to embed MPC player into web browser?

MPC player I mean => http://sourceforge.net/projects/guliverkli/

2. I like your solution to record using other codec like h264 in cam recorder. But I did not find such codec supported in my Camtasia Studio 6 codec list. Please check my attached file for a screen snapshot for a list of supported codecs. Any ideas?

3. What audio format do you suggest I set in Camtasia Studio?

1) The asf file works for me in WMP11 and MPC, is there a reason you are using WMP9 ? It also works fine in the players Midzuki listed, and several more e.g. kmplayer , vlc

2) You don't have to capture in .camrec, you have the option to capture to other .avi formats (assuming you are using camtasia studio , you didn't say which version?) e.g. h264vfw, wmv9 in avi, etc... it also depends how fast your system is, but if you are doing 5fps, most modern systems should be able to keep up.....e.g. you could record h264vfw in avi, then remux to .mp4. You can adjust all these settings in the options

3) And you should re-encode the audio; PCM audio is a waste of space/bitrate, especially if these are meant to be tutorials

regards,
George

[poisondeathray]

I don't know how to embed mpc

If you install x264vfw, it should show up on the list (beware the default settings are very low quality, and you should adjust to meet your needs)