The Dolby MP4 streaming muxer (dlb_mp4base) is a software implementation of a muxer of fragmented or unfragmented ISO base media file format (mp4). It supports muxing of Dolby Digital (AC-3), Dolby Digital Plus (E-AC-3), and Dolby AC-4 audio formats as well as Dolby Vision.
I ran into following error:
I found, my video (HDR stream) is too big and reencoded it.
After reencoding Mediainfo reported no differences (the two /old and new/ stream's Mediainfo report was identical).
I muxed the new one with mp4base and Mediainfo reported:
Height : 2 176 pixels
Original height : 2 160 pixels
Display aspect ratio : 16:9
Original display aspect ratio : 16:9
The hieght was correct using the original video stream, and there was no "Original display aspect ratio" in Mediainfo report.
After making an mkv using the reencoded stream, the height not changed as Mediainfo reported.
ShaoWeiguo
commented
4 years ago
I ran into following error: I found, my video (HDR stream) is too big and reencoded it. After reencoding Mediainfo reported no differences (the two /old and new/ stream's Mediainfo report was identical). I muxed the new one with mp4base and Mediainfo reported:
Height : 2 176 pixels Original height : 2 160 pixels Display aspect ratio : 16:9 Original display aspect ratio : 16:9
The hieght was correct using the original video stream, and there was no "Original display aspect ratio" in Mediainfo report.
After making an mkv using the reencoded stream, the height not changed as Mediainfo reported.
I think the bug is in mp4base.