avimux problem with big files

[rojiar]

Hi all,

I have been working with a PC pipeline to record a simple pattern into an avi file. I used this as easier way to develop in an embedded system, although the same happens on PC or in embedded. My GStreamer version is: gst-launch-1.0 version 1.2.4, GStreamer 1.2.4

What I see is that, when trying to reproduce the file with either GStreamer or VLC, or Media Player in Ubuntu, all of those detect a total video time smaller than the time that actually was taken to record the file. For instance, I use is the next pipeline to record a video, please notice the amount of buffers on the videotestsrc is equal to 333039, so If I set the framerate to be 25 fps, the total time of recording shouldn't be 3,700433333 (3 hours 42 minutes) hours???? So, when I reproduce the file using GStreamer or VLC, both reports a total time of 3 hours, 7 minutes. Which is 35 minutes less than the supposed value.

This thread talk a bit about something quite similar https://lists.freedesktop.org/archives/gstreamer-devel/2015-April/052619.html

Nevertheless they never reached something useful.

The pipeline used to record the file is this:


GST_DEBUG_FILE=recorded.log GST_DEBUG=*avimux*:4 gst-launch-1.0 videotestsrc num-buffers=333039 ! 'video/x-raw,format=(string)I420,width=320,height=240,framerate=(fraction)25/1' ! queue ! mux. audiotestsrc num-buffers=555000 ! audioconvert ! 'audio/x-raw,rate=44100,channels=2' ! queue ! mux. avimux name=mux ! filesink location=recorded.avi

Attached is the file recorded.log of the debug output. I have double checked and the avimux's property bigfile for openDML is set by default on true, which is, AFAIK, the one that allows recording of avi files bigger tan 1 GB:

  bigfile             : Support for openDML-2.0 (big) AVI files
                        flags: readable, writable
                        Boolean. Default: true

The version of the avimux is also 1.2.4:


 Plugin Details: Name avi Description AVI stream handling
 Filename /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstavi.so
 Version 1.2.4
 License LGPL
 Source module gst-plugins-good
 Source release date 2014-04-18
 Binary package GStreamer Good Plugins (Ubuntu)
 Origin URL https://launchpad.net/distros/ubuntu/+source/gst-plugins-good1.0

Am I missing something? Is this a restriction of the AVI format, even in openDML?

If anyone could help, that would be gratefully appreciated.

Thanks in advance!

Kind regards,
rojiar

[rojiar]

Does anyone knows or have seen this issue before?

Help please.

Regards,

[Sebastian Dröge-3]

On Do, 2016-04-28 at 17:37 -0700, rojiar wrote:
> Hi all,
>
> I have been working with a PC pipeline to record a simple pattern
> into an
> avi file. I used this as easier way to develop in an embedded system,
> although the same happens on PC or in embedded. My GStreamer version
> is:
> gst-launch-1.0 version 1.2.4, GStreamer 1.2.4

Can you test if this is still a problem with 1.8.1? 1.2.4 is quite old
now and there were many changes since then.

--
Sebastian Dröge, Centricular Ltd · http://www.centricular.com


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