Goal: remux all my home video m2ts files to m4v/mp4 container so that I can watch them on Sony PS3 and QuickTime and AirVideo on IPad.
Problem: I used Subler to simply create a m4v file from the extracted h264 stream. Results are that using MplayerX I get very blocky video. If I play the same m2ts it plays fine. Quicktime will not even show the video.
How were the files created?: Originally the video is from Sony SR11 camcorder. But in outputting from Final Cut Pro X and Compressor I deinterlaced and then used 'blu ray compatible h264' encoding.
My analysis: From various searches I think the problem is that the blu ray compatibly has put scan type as MBAFF on the h264 video. I know my video is not interlaced anymore.
Fallback Plan: Use Handbrake to recode them using x264 to Progressive profile. But I really want to avoid generation loss by recoding if I can avoid it. Coming from a camcorder these files are not going to be high quality 1920x1080 to begin with like a movie.
My Skill level is "just enough knowledge to be dangerous" . Otherwise I would not have coded them as blu ray compatible and instead output Progressive that works on PS3 and Quicktime.
Is there any way to just change the scan type on the h264 video? Is recoding my only option?
Code:mediainfo 2009/A050_Snow_XMAS_2009.m2ts General ID : 1 (0x1) Complete name : 2009/A050_Snow_XMAS_2009.m2ts Format : BDAV Format/Info : Blu-ray Video File size : 2.32 GiB Duration : 15mn 30s Overall bit rate : 21.4 Mbps Maximum Overall bit rate : 35.5 Mbps Video ID : 4113 (0x1011) Menu ID : 1 (0x1) Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.1 Format settings, CABAC : Yes Format settings, ReFrames : 3 frames Codec ID : 27 Duration : 15mn 30s Bit rate mode : Variable Bit rate : 20.1 Mbps Maximum bit rate : 30.2 Mbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate : 25.000 fps Standard : NTSC Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : MBAFF Bits/(Pixel*Frame) : 0.388 Stream size : 2.18 GiB (94%) Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177 Transfer characteristics : BT.709-5, BT.1361 Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177 Audio ID : 4352 (0x1100) Menu ID : 1 (0x1) Format : AC-3 Format/Info : Audio Coding 3 Mode extension : CM (complete main) Codec ID : 129 Duration : 15mn 30s Bit rate mode : Constant Bit rate : 448 Kbps Channel(s) : 6 channels Channel positions : Front: L C R, Side: L R, LFE Sampling rate : 48.0 KHz Bit depth : 16 bits Compression mode : Lossy Stream size : 49.7 MiB (2%)
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then used 'blu ray compatible h264' encoding.
iirc. mediainfo did ignore the '--fake-intelaced' flag x264 sets when fooling blu-ray players to accept 25p content, so the content should be really MBAFF (= interlaced content) and if you want to get content that is not interlaced you need to reencode and deinterlace
don't think there's a tool out there, that can just remove the MBAFF header info (1st thought http://forum.doom9.org/showthread.php?t=152419 might be able to, but it doesn't look like it)
Cu Selur -
But encoding it progressive makes it blu-ray incompatible. Are you saying your PS3 cannot play this video? If so, provide more information
You can have progressive content encoded using MBAFF. This is how BBC does their 25p blu-rays
MBAFF doesn't necessarily say anything about the content, it's just a method of encoding.
Quicktime is incompatible with many formats
And no, there isn't anyway to change it short of re-encoding
And why did you deinterlace at all? Presumably you shot 50i from the SR11 ? Why not encode it 50i instead of throwing away 1/2 the information -
I agree the best way would be to stay with 50i which is blu-ray comatible and therefore supported by most decoders.
You can have progressive content encoded using MBAFF. This is how BBC does their 25p blu-rays -
First of all thank you everyone for replying. it's my first post and i wasn't sure if I was asking something obvious.
But encoding it progressive makes it blu-ray incompatible. Are you saying your PS3 cannot play this video? If so, provide more information
And why did you deinterlace at all? Presumably you shot 50i from the SR11 ? Why not encode it 50i instead of throwing away 1/2 the information
It's these latter from 2009 onwards which I used Final cut and Compressor and "blue ray compatible h264" that I am stuck with. I thought I was deinterlacing and then Compressor's "blu ray compatible" was doing the fake interlacing. I was also trying to encode to h264 in a way that would not require recoding again if I switched containers from m2ts. Obviously I didn't succeed .
Looks like I will have to stick to m2ts or take a generational loss with recoding. And I will have to use my old workflow to output from Final Cut and code manually using x264 if I want maximum compatibility. -
Just some "futureproofing" to think about before you go about redoing your workflow - just be aware that AVCHD 2.0 spec includes 1080p50 28Mbps (and supposedly there is to be updated blu-ray spec which includes this as well but I haven't seen official documentation) . New hardware players should be out later this year with the updated AVCHD2.0 spec . So if your concern was player deinterlacing, then bob-deinterlacing to 50p might be an option (at least you keep the smoothness and temporal information this way)
There's not many options on a Mac for deinterlacing, but if you access to PC, note there are much better deinterlacers available through avisynth -
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