CODEWITHSUNDEEP
ffmpeg
Thomas Carlton
Thomas Carlton

Reputation: 5968

ffmpeg : Could not find codec parameters for stream 1 (Video: vp8, yuv420p): unspecified size?

I have an RTP stream coming from Kurento Media Server.

I would like to record this stream to a file using ffmpeg. I'm running the command

ffmpeg -protocol_whitelist file,crypto,udp,rtp -i a.sdp -c:v libx264 -analyzeduration 100M -probesize 100M -y output.mp4

The SDP File is :

v=0
o=- 3831930560 3831930560 IN IP4 127.0.0.1
s=Kurento Media Server
c=IN IP4 127.0.0.1
t=0 0
m=audio 20000 RTP/AVPF 96 0 97
a=setup:actpass
a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
a=rtpmap:96 opus/48000/2
a=rtpmap:97 AMR/8000
a=rtcp:13001
a=sendrecv
a=mid:audio0
a=ssrc:2843019226 cname:user7547104516@host-14132be
m=video 20002 RTP/AVPF 102 103
a=setup:actpass
a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
a=rtpmap:102 VP8/90000
a=rtpmap:103 H264/90000
a=fmtp:103 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f
a=rtcp:56917
a=sendrecv
a=mid:video0
a=rtcp-fb:102 nack
a=rtcp-fb:102 nack pli
a=rtcp-fb:102 goog-remb
a=rtcp-fb:102 ccm fir
a=rtcp-fb:103 nack
a=rtcp-fb:103 nack pli
a=rtcp-fb:103 ccm fir
a=ssrc:1320996934 cname:user7547104516@host-14132be

ffmpeg starts recording however it records only audio. No video recorded and I'm having the error:

Could not find codec parameters for stream 1 (Video: vp8, yuv420p): unspecified size

How can I solve that?

enter image description here

Upvotes: 0

Views: 8327

Answers (1)

llogan
llogan

Reputation: 133743

Option placement matters. -analyzeduration and -probesize are input options, but you are attempting to use them as output options. Order:

ffmpeg [input options] input [output options] output

So try:

ffmpeg -analyzeduration 100M -probesize 100M -protocol_whitelist file,crypto,udp,rtp -i a.sdp -c:v libx264 output.mp4

Upvotes: 2

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