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I am trying to extract the frame dimensions from H.264 encoded live stream using libav and C++. I have access to the raw stream, I don't need to re-encode the frames just to parse the width and height. I think I have to get the SPS to get this information. I found this post but it doesn't seem to help with my problem:

How to get width and height from the H264 SPS using ffmpeg

rgeorg
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    why does that not help? It’s a great example. – szatmary Jan 28 '20 at 02:25
  • I agree it's a great example but it concerns initializing a codec context using an SPS, and I am looking to get the frame size from a raw H.264 stream, so I need to initialize my context from the raw stream parameters. – rgeorg Jan 28 '20 at 14:15
  • The SPS is just a packet in the raw stream. https://stackoverflow.com/questions/24884827/possible-locations-for-sequence-picture-parameter-sets-for-h-264-stream – szatmary Jan 28 '20 at 16:17

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