[gst-devel] ffmpeg muxers - index not written in the result file

[Wim Taymans]

On Tue, 2008-11-25 at 12:02 +0100, Julien Isorce wrote:
> Hi
> 
> I join to this mail a simple test.
> 
> The test demonstrates that when the pipeline is stopped when sending
> eos from the client code, then ffmux_asf does not write the index, so
> it's not possible to seek when playing back the result file.

You are not sending an EOS event but (forcefully) posting an EOS message
from the pipeline to the application.

> If I set num_buffers=N instead of sending eos, then the muxer write
> the index.
> 
> Yes it should be the same result because when GstBaseSrc reachs
> num_buffers_left = 0 then it return GST_FLOW_UNEXPECTED then an EOS is
> generated.
> 
> So something is not flushed when ffmux receive eos in the first way.

ffmux never receives EOS because there is no such event generated.

> 
> Is it a bug from gstffmpegmux or a problem in
> ffmpeg-asfmux-libavcodec ? or something else ?

It's a bug in the application.

Wim
> 
> ( ./test 0 rec.asf   -> index not written)  (eos sent from a
> g_timeout_add callback)
> ( ./test 1 rec.asf   -> asf correclty generated)  (use num_buffers=N)
> 
> Sincerely
> 
> Julien
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