I'm working on a simple media streaming service and need to write a video archive from h264 rtsp stream.
In current implementation rtsp stream is written as-is into a series of mp4 files, one minute each. When current output file reaches it's length, I simply close it and then open a new one, write file header and continue pushing packets into a new file (with some timestamp magic). And it works rather reliable for most sources. But here is the problem: with some sources I get the error message "unspecified pixel format" (with ffprobe) for every resulting file after the first one. During execution libav display the format correctly. So here is the question: How can I manually specify the pixel format for each fragment after the first one, ideally, without any transcoding? Thanks, Alexander Yushkov
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