Why my App cannot decode the RTSP stream?

Question

I use live555 to receive RTP video frame (frame encoded in H264). I use Live555 open my local .sdp file to receive frame data. I just saw DummySink::afterGettingFrame was called ceaselessly。 if fReceiveBuffer in DummySink is correct, Why FFMPEG cannot decode the frame? My code is wrong?

Here is my Code Snippet: http://paste.ubuntu.com/12529740/

the function avcodec_decode_video2 is always return failed , its value less than zero

fReceiveBuffer is present one video frame？

Oh, Here is my FFMPEG init code need to open related video decoder: http://paste.ubuntu.com/12529760/

Please ask make your question easier to understand. Describe what you already tried. Make approach comprehensible for us. — Sebastian Annies, Sep 24 '15 at 12:54
@SebastianAnnies Finally, I find the solution for the question. Thank you remind me of this — MathxH Chen, Sep 25 '15 at 00:50

score 0 · Answer 1 · edited May 23 '17 at 12:06

I read the document related H264 again， I found out that I-frame(IDR) need SPS/PPS separated by 0x00000001 insert into the header and decoder have a capacity to decode the frame correctly. Here is a related solution FFmpeg can't decode H264 stream/frame data

Decoding h264 frames from RTP stream

and now, My App works fine, it can decode the frame and convert it to OSD Image for displaying to screen .

Why my App cannot decode the RTSP stream?

1 Answers1