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Bug 739773 - mpeg4videoparse doesn't add profile in caps
mpeg4videoparse doesn't add profile in caps
Status: RESOLVED NOTABUG
Product: GStreamer
Classification: Platform
Component: gst-plugins-bad
1.4.3
Other Linux
: Normal normal
: git master
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2014-11-07 11:46 UTC by Athanasios Oikonomou
Modified: 2014-11-09 09:52 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Athanasios Oikonomou 2014-11-07 11:46:27 UTC 
When the video is xvid and the container is avi you don't have any *profile*

/GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0/GstMultiQueue:multiqueue0.GstPad:src_0:
caps = "video/mpeg, mpegversion=(int)4, systemstream=(boolean)false,
framerate=(fraction)24000/1001, width=(int)640, height=(int)272"
/GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0

Same video xvid remuxed in mp4 (ffmpeg -c copy) has profile set.

/GstMultiQueue:multiqueue0.GstPad:src_0: caps = "video/mpeg,
mpegversion=(int)4, systemstream=(boolean)false,
profile=(string)advanced-simple, level=(string)5,
codec_data=(buffer)000001b0f5000001b5090000010000000120088685770307d31404221463000001b244697658353033623133393370000001b25876694430303634,
width=(int)640, height=(int)272, framerate=(fraction)24000/1001,
pixel-aspect-ratio=(fraction)1/1"


FaF_SaMple.avi 5.7 MB
https://mega.co.nz/#!XF0VCaDY!kOK16NqBakVukJlCZcnFZBlbIz7_S-Re5ezpXHnMWWU
Comment 1 Athanasios Oikonomou 2014-11-08 20:32:19 UTC 
The profile was missing because dvbmediasink caps didn't require one. 

After adding profile = (string) { simple, advanced-simple } to dvbmediasink caps profile and codec_data are inserted to caps.
Comment 2 Sebastian Dröge (slomo) 2014-11-09 09:52:59 UTC 
Ah yes, without requesting parsed caps in the sink, decodebin will believe your sink just supports every kind MPEG4 Part 2 video and will not plug a parser.