Am 16.03.20 um 01:43 schrieb Ulf Zibis:
I now inserted the following: 1. "CEAP" to ftyp (0x18 instead 0x14 bytes) 2. moov atom with qt-fast 3. udta atom from original at the start of moov atom (increases it from 0x1340E to 0x1344A) Result: Instead of a big "?" I now see a the preview picture on the camera. Unfortunately I still can't play the video because of "Not identified Picture". So we are a little step closer to the solution.
I now realise the problem, as I see, that the so "patched" file is also not playing anymore with ffplay. The insertion of the additional bytes moved back the video data, so I guess, this makes the index data in the moov atom invalid. Is ffmpeg somehow able to insert additional data with correcting the moov index data in parallel? I also will try to replace the udta atom in the running original file with free, to see, if it still works. -Ulf _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".