iOS H264: Green frame

Дмитрий Шевчук

unread,

Jul 27, 2016, 3:34:12 AM7/27/16

to discuss-webrtc

Hi. I have small problem with h264 codec. 13524 revision of libWebRTC and enabled use_objc_h264 flag.
When using other codecs - video stream is working.
iOS 9.3.3,
iPhones: 5s & 6s+

libWebRTC Rev: 13524

If somebody knows about this please help.

Peter Boström

unread,

Jul 27, 2016, 12:47:09 PM7/27/16

to discuss-webrtc

This doesn't sound like a small problem.

Do you repro this on iOS AppRTCDemo with use_objc_h264 enabled? You can also file a bug here: bugs.webrtc.org

--

---
You received this message because you are subscribed to the Google Groups "discuss-webrtc" group.
To unsubscribe from this group and stop receiving emails from it, send an email to discuss-webrt...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/discuss-webrtc/cd7c7413-be62-4bf6-9872-3b606785373b%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Дмитрий Шевчук

unread,

Jul 28, 2016, 6:39:51 AM7/28/16

to discuss-webrtc

iOS AppRTCDemo work fine with h264.

I compile clear libWebRTC lib, and use it for my project. All work fine, but h264 does not work correct.

With debug ver of the lib i have a crash:

#
# Fatal error in ../../webrtc/common_video/video_frame_buffer.cc, line 270 
# last system error: 3 
# Check failed: false 
#  
# 
(lldb)

With Release ver of lib - only green screen

среда, 27 июля 2016 г., 19:47:09 UTC+3 пользователь Peter Boström написал:

Peter Boström

unread,

Jul 28, 2016, 7:27:58 AM7/28/16

to discuss-webrtc

Can you post a stack trace of that debug crash?

To view this discussion on the web visit https://groups.google.com/d/msgid/discuss-webrtc/9a093d2c-fec2-40f6-becd-7f9013f18da5%40googlegroups.com.

Дмитрий Шевчук

unread,

Jul 28, 2016, 10:13:27 AM7/28/16

to discuss-webrtc

Yep, there are crash file & stack from xCode. App crash on the device accept call.

четверг, 28 июля 2016 г., 14:27:58 UTC+3 пользователь Peter Boström написал:

ChatXMPP.crash

Peter Boström

unread,

Jul 28, 2016, 12:37:12 PM7/28/16

to discuss...@googlegroups.com, mag...@webrtc.org

+magjed@

Looks like this path is trying to draw textures as if they were memory buffers. Magnus do you have any obvious input on this? Does RTCOpenGLVideoRenderer support textures?

To view this discussion on the web visit https://groups.google.com/d/msgid/discuss-webrtc/13291da3-4404-4658-bc01-75458432ac8c%40googlegroups.com.

mag...@webrtc.org

unread,

Jul 29, 2016, 5:17:16 AM7/29/16

to discuss-webrtc, mag...@webrtc.org, Zeke Chin

+tkchin@

No, RTCOpenGLVideoRenderer does not support textures yet. AppRTCDemo is working fine, so can you try to use the same files, i.e. webrtc/sdk/objc/Framework/Classes/RTCVideoFrame.mm and webrtc/sdk/objc/Framework/Classes/RTCOpenGLVideoRenderer.mm instead of talk/app/webrtc/objc/RTCI420Frame.mm and talk/app/webrtc/objc/RTCOpenGLVideoRenderer.mm? I'm not sure if talk/app/webrtc/objc is supported anymore.

Дмитрий Шевчук

unread,

Jul 29, 2016, 7:31:39 AM7/29/16

to discuss-webrtc, mag...@webrtc.org, tkc...@webrtc.org

There is a simple way to create libWebRTC from webrtc/sdk/objc/Framework/ instead of lib, that is created from talk/app/webrtc/objc/ now? Or I can use in my project sources from webrtc/sdk/objc/Framework/ instead of libWebRTC?

пятница, 29 июля 2016 г., 12:17:16 UTC+3 пользователь mag...@webrtc.org написал:

Zeke Chin

unread,

Jul 29, 2016, 3:39:10 PM7/29/16

to Дмитрий Шевчук, discuss-webrtc, mag...@webrtc.org

webrtc/build/ios/build_ios_libs.sh

Reply all

Reply to author

Forward