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<div class="moz-cite-prefix">Hi,<br>
<br>
if you are using GStreamer to create your mp4 recording you can
set moov-recovery-file property on qtmux and then use
qtmoovrecover element if the recording is unexpectedly interrupted
to recover it,<br>
<br>
Nicola<br>
<br>
Il 08/11/2017 19:43, William Salibrici ha scritto:<br>
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<p class="MsoNormal">I am creating mp4 recordings in a known
format.<o:p></o:p></p>
<p class="MsoNormal">Below is the discover tool result [short
version] for a test recording:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Topology:<o:p></o:p></p>
<p class="MsoNormal"> container: Quicktime<o:p></o:p></p>
<p class="MsoNormal"> audio: MPEG-4 AAC<o:p></o:p></p>
<p class="MsoNormal"> video: H.264 (Constrained Baseline
Profile)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Properties:<o:p></o:p></p>
<p class="MsoNormal"> Duration: 0:00:48.000000000<o:p></o:p></p>
<p class="MsoNormal"> Seekable: yes<o:p></o:p></p>
<p class="MsoNormal"> Tags:<o:p></o:p></p>
<p class="MsoNormal"> audio codec: MPEG-4 AAC audio<o:p></o:p></p>
<p class="MsoNormal"> bitrate: 21346<o:p></o:p></p>
<p class="MsoNormal"> language code: en<o:p></o:p></p>
<p class="MsoNormal"> datetime: 2017-10-25T15:04:50Z<o:p></o:p></p>
<p class="MsoNormal"> container format: ISO MP4/M4A<o:p></o:p></p>
<p class="MsoNormal"> video codec: H.264 / AVC<o:p></o:p></p>
<p class="MsoNormal"> maximum bitrate: 5222160<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The problem is that sometimes I will get a
recording that was not finalized so the data is there but the
recording is unreadable.<o:p></o:p></p>
<p class="MsoNormal">However, the audio and video formats are
known.<o:p></o:p></p>
<p class="MsoNormal">The question is this: does anyone know of a
repair tool that can go over the existing data in the
recording file and create the proper moov atom at the end of
the file?<o:p></o:p></p>
<p class="MsoNormal">Thank you for your help,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">--Bill<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">UPDATE 1 -><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I failed to clarify in my first post that
I’m interested to know if anyone in the gstreamer development
community has done any kind of mp4 file repair using gstreamer
elements or gstreamer source code. I can google for repair
tools but that’s not what I want. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I need some c/c++ code to do this repair. I
can dig into the mp4mux and discoverer source code to see
what’s going on but that’s a pretty big task. I’m thinking if
anyone has already done some work in this area I could avoid
reinventing the wheel so to speak.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Sorry about that.<o:p></o:p></p>
<p class="MsoNormal">Thanks again for any help,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Bill<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p></o:p></p>
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