Hello, I'm continuing to write a guide about ffmpeg/libav and I just wrote the remuxing <https://github.com/leandromoreira/ffmpeg-libav-tutorial#chapter-2---remuxing> part and now I'm trying to make the same example but using avio to simulate a video from / to memory. I'm inspiring my code at the official avio example <https://ffmpeg.org/doxygen/trunk/avio_reading_8c-example.html>.
I'd like to ask for some help: - When I ran the remuxing from mp4 to a fragmented mp4 it works but it shows a warning *"[mp4 @ 0x845140] track 1: codec frame size is not set" *why is that? why doesn't it happen when I do remuxing from MP4 to MPEGTS? - The remuxing example with avio <https://github.com/leandromoreira/ffmpeg-libav-tutorial/commit/924126ec27a088a047ba33684203980853795621> - when I added the avio to simulate a buffered input it didn't work and it raised some errors *"[mov,mp4,m4a,3gp,3g2,mj2 @ 0xf00c40] stream 1, offset 0x30: partial file[mov,mp4,m4a,3gp,3g2,mj2 @ 0xf00c40] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 1920x1080, 2151 kb/s): unspecified pixel formatConsider increasing the value for the 'analyzeduration' and 'probesize' options" *How can I fix this? Where can I see examples I can try to learn from? PS: I also didn't find any avio write example - The remuxing chapter <https://github.com/leandromoreira/ffmpeg-libav-tutorial#chapter-2---remuxing> - any feedback would be greatly appreciated. Thanks
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