https://bugs.kde.org/show_bug.cgi?id=503545
Bug ID: 503545
Summary: H264 stream does not conform to baseline
Classification: Plasma
Product: KRdp
Version: 6.3.4
Platform: Debian testing
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: unassigned-b...@kde.org
Reporter: armin.no...@thincast.com
CC: ahiems...@heimr.nl
Target Milestone: ---
The H264 stream from krdp (from a debian trixie install) can not be decoded by
OpenH264
To test:
1. install OpenH264
2. Compile FreeRDP with OpenH264 support (disable FFMPEG/x264)
3. Connect with xfreerdp (or any other client)
4. Have a white screen and an endless log of decoder errors
I suspect that the H264 stream does not contain the NAL/stream configuration in
the first frame and therefore the decoder does not know how to decode the data.
The most important log entries are:
```
[20:58:47:948] [43057:0000a85b] [WARN][com.freerdp.codec] -
[openh264_decompress]: DecodeFrame2 state: 0x0004 iBufferStatus: 0
[20:58:47:948] [43057:0000a85b] [WARN][com.freerdp.gdi] -
[gdi_SurfaceCommand_AVC420]: avc420_decompress failure: -2002, ignoring update.
[20:58:47:989] [43057:0000a85b] [WARN][com.freerdp.codec] -
[openh264_decompress]: DecodeFrame2 iBufferStatus: 0
[20:58:48:263] [43057:0000a85b] [WARN][com.freerdp.codec] -
[openh264_decompress]: DecodeFrame2 iBufferStatus: 0
[20:58:48:375] [43057:0000a85b] [WARN][com.freerdp.codec] -
[openh264_decompress]: DecodeFrame2 iBufferStatus: 0
```
(the last message repeats endlessly)
the DecodeFrame2 return 0x04 is bsBitstreamError from OpenH264
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