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Re: [Linphone-developers] Loading another H264 decoder profile

From: Giacomo Furlan
Subject: Re: [Linphone-developers] Loading another H264 decoder profile
Date: Mon, 12 Oct 2015 12:48:22 +0200

Hello again!

I've tried adding manually to submodules/linphone/coreapi/linphonecore.c a different payload type (in particular payload_type_h264 with profile-level-id=4D0029), but when the call is accepted, I still get the following error:

10-12 12:38:03.283 29515-29678/com.be_ssd.sipinterphone I/SIPManager: Found payload H264/90000 fmtp=profile-level-id=4D0029; packetization-mode=1
10-12 12:38:03.293 29515-29678/com.be_ssd.sipinterphone I/SIPManager: No match for H264/90000

I've built the library with BUILD_X264=1, but still I only see that only msopenh264-android plugin is being registered (and not msx264)...

AFAIK the profile-level-id is formed by three words, in this case 4D, 00, 29 (profile_idc: 0x7D, profile-iop: 0x00, level-idc: 0x29). Maybe that combination is not supported by FFMPEG? Or should I register it somewhere else?

Please help me!


Giacomo Furlan
Software developer
Software Solutions Designs

2015-10-08 17:14 GMT+02:00 Giacomo Furlan <address@hidden>:

I think I found the problem why I can't receive the video: the H264/90000 codec compiled with the relative submodule supports a profile level id different than 4D0029 (which is the one that is used by the other SIP client). I don't really know what this profile id is, and thus I don't know how much effort it would take to support it.

Where could I start from?

Thank you.

Giacomo Furlan
Software developer
Software Solutions Designs

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