Hello, ffmpeg allows to set a reserved space for the moov at the beginning of the file using the "-moov_size" option. This will waste some space, but prevent the (in some cases very time-consuming) second pass of "-movflags faststart" if you want to have the moov atom at the beginning of the file.
If the reserved space is too small the moov atom gets written at the end from my testing (the documentation seems to be wrong here, it states muxing will fail, or why could the produced mov file still be played?). Is there any way to properly estimate the moov size? In my use case it should be rather simple: PCM audio, DNXHD codec (all-I frames, almost CBR), known number of frames. As the produced files are very big anyway I don't mind wasting a few MB by overestimating. Best regards Stefan _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
