[FFmpeg-devel] [PATCH] Handle initial RTMP chunk size packet

[Stephan Soller]

Hi there,

The attached patch handles RTMP chunk size packets that are send before 
the first invoke packet. This allows ffmpeg to receive RTMP streams from 
streaming software like Open Broadcaster Software 
(https://obsproject.com/). OBS first increases the chunk size from 128 
bytes to 4096 bytes before sending the first invoke packet. Without the 
patch ffmpeg segfaults.

See ticket #2911 for the details of the bug (setup to replicate it, 
ffmpeg log and gdb output).

Tested with ffmpeg v2.2.1 and current master 
(e89f3d0ed21259a714a8bd5d05d95af5b1e0f73f).

Happy programming
Stephan
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