The converted file is very slow after dragging the progress bar #10
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Do you have a suggestion on how to improve this? I hadn't noticed bad performance when dragging the bar, but I also wasn't paying attention. |
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I have been having this issue on quite a few rips with no solution. If I try to skip to a later part of the movie it just hangs forever. Sometimes it will play audio with a black video screen. |
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Its it reproducible on all videos or just some |
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I tried using:spatial instead of spatial-media-kit-tool and MP4box and found a good performance improvement. |
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Mike reached out to me at one point. Let me talk to him and see what he says. Thank you for the suggestion! |
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So I sat down on my Mac and tried scrolling through a few videos and they all scroll instantly. Even with a 90GB video over wifi. Is there a specific way this issue is triggered or specific videos or maybe it only happens on the AVP? I'm trying to reproduce it so I can make sure its fixed. |
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Quick update. I made the changes and need to test now. This is always the longest part. lol. I'll post an update later if its works and I push the code live. I'm not sure if Mike's needs cdist to work and not sure how to deal with that value if so. |
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The issue appears on my laptop (Apple M1 Max, Sonoma 14.4.1) and my AVP. Here's a video of what it does on the desktop. It acts the same exact way on my AVP. https://www.dropbox.com/scl/fi/syhwrgxg703qkr4hk0hzp/CleanShot-2024-05-14-at-10.46.26.mp4?rlkey=nd2ftmainjxrext666p3rjr3q&dl=0 As a test, I ripped an FSBS version from Blu-Ray, then converted it to Spatial via MVConverter (https://mvconverter.app), and that file does not have this issue. Here is on the same laptop: https://www.dropbox.com/scl/fi/jqpbspyhlr7pd0e275ych/CleanShot-MVConverterOutput.mp4?rlkey=4ktjezwfl75bo64fp1yco4jlx&dl=0 |
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Everything works perfect on my machine! lol. Since I am unable to reproduce the problem, I cannot verify Spatial will fix the problem. After I verify an encode works, I will push the changes and you can test for me. Thank you for all the great feedback. Hopefully we can get this fixed for you. That issue looks really annoying. |
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My first try resulted in a square video that looked like it was taken on the AVP. I'll have to try again. |
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What parameter are you using to create spatial movies with spatial from Mike Swanson? |
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spatial is outputting 1:1 aspect video on my testing file. Waiting on the dev to see if it's a bug on his end. He apparently just added a feature that may be causing an issue. |
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After fixing the aspect ratio issue, My videos using the spatial tool is very slow to seek through video, has the fuzzy border of AVP videos, and cannot be used in an immersive environment. I'll have to see if I can figure out what is going on with all of that when I have time. It's really weird that the original MV-HEVC conversion tool works perfectly for some, but not everyone. One person had an issue that was solved by changing to software encoding. Of course that takes 10 times longer to encode. |
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I am adding a --software-encoder option you can test out. It takes a lot longer, but it's worth a try to see if that helps. That can help confirm where the issue is. I have had at least one person confirm their system has an issue with the hardware encoder. |
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I'm encountering a weirder problem now. Some of the videos I made are very normal, but some of them can be played directly on Mac using spaces. Dragging is also normal, but when I put this video on AVP, it Unable to play. Currently normal ones include: Painted Skin 2 3D AVP,... Abnormal ones include: Transformers The Last Kninght, 300 Rise of an Empire,.. 
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I seem to have found the reason. I found that AVP does not support aac 5.1, but it does support aac stereo. |
Does this mean --transcode-audio fixes the issue? |
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No. I just tried to rip an ISO of Godzilla using --transcode-audio and the output won't scroll or play properly. |
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I can also confirm that --transcode-audio does not solve the problem. |
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I don't currently have any images or discs to test with. I'll see if I can get something... It looks like subs are not getting inserted. I must have missed something there. At worst I can leave the exported subs in the folder with the output vide. I'll take a look when I have time. As far as the title issue, I am very confused since I don't seem to have those issues. I am waiting on a clean ISO from Sam so I can try encoding and see if I get different results. So far everything I have encoded plays back perfect on Mac and AVP. You can see an example below. If anyone has suggestions, I am open. Untitled2.mov |
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I think the issues may have been coming from mp4box. I'm still not sure why it was working for me. Either way, I am using the spatial tool now for the conversion and the muxing. Testing now. Spatial doesn't handle subs, so I am just copying the sub file with the video. I'll hopefully update tomorrow with a new release. Thank you everyone for the help. |
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I just pushed a new update that uses spatial instead of mp4box to mux the video and audio. I had to leave the subs out since spatial doesn't support them, but since they weren't working correctly anyway, I guess no loss. I included the idx file for the subs in the output folder. I am open to suggestions on how to do the subs better. If @5UFKEFU @mikemonello and @Samckatz can test, I would really appreciate it before I make a reddit post to let people know. Thank you!! BTW, I did not use spatial for the MV-HEVC itself. It seems to generate a file that plays weird. It plays like the videos taken on the AVP. I'm open to input on that as well. |
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I'm out of town for the long weekend and don't have my drives with me, so I can't test until Monday night. I doubt I'd be able to get a complete iso file downloaded on this hotel wifi, hahaha |
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No rush @mikemonello, just give me a pass/fail when you get a chance. I'm hoping it's better for you all. I'll give up on subs for now and just include the file. I think there are third party players that will work with it. I tried it with Apple's but I don't think it likes the external sub file. The Spatial tool doesn't work with subs at all and after the issues with MP4Box, I don't want to use it again. I'm thinking there was an update to MP4Box that messed with the mux. I don't think I'll have time to confirm that though. It takes so long to process then test. |
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I am encoding now and will report back my findings |
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I can confirm that the issue is resolved and it plays and scrolls flawlessly. Thank you @cbusillo |
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There is an issue if the disc has subtitles. Seems you delete the folder then try to access a deleted file. |
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@ddevler my mistake, if you update that should already be fixed. Also I am doing a test run of working subs. mov does not support image based subs like the Blu-ray comes with. I found a way to rip and OCR them to convert them to a format mov likes. If I am lucky, I should be able to update with a working subtitle included in the output file tomorrow. |
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PGS subs can be a bit tricky. I don't think that will be easy to automate. Usually you have train the OCR based on the font used. Then still requires a bit of cleanup after the OCR is complete. Normally I don't mess with that unless there are forced subtitles that affect the movie. |
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I agree!! I found a Python library using tesseract that converts the PGS sup to srt. We shall see how bad it is. My thinking here is I would rather include them than ignore them if possible. If you have any experience or ideas, I am always interested @ddevler. |
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I thought I had a working solution converting them to sub/idx, but I guess that doesn't work with mov containers. Video is so frustrating. |
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you need MPEG-4 Timed Text format (Tx3g) for mp4 or mov. Personally I would just have an option to rip the subtitle track to file if the user wants it. Then they can deal with process of conversion and remux themselves. |
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I think mp4box will allow you to convert the sub file and mux it. |
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MP4Box was causing the seeking issue. I'm not sure why. The seeking issue went away when I used spatial to mux the final file, but it doesn't support subs. |
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Supposedly working version is pushed up now. I am doing testing on a blank machine to make sure I didn't mess up any paths or anything. I installed MP4Box 2.2.1 instead of MP4Box 2.4.0, that fixes the seeking issue. I also figured out what tags were missing from the subs to get them to work. It turns out QuickTime needs extra things compared to other players for the subs to work... I'll update everyone after I finish testing. You are welcome to run the install/update script now and see what happens, but I am famous for last minute path typos. lol |
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I'll give it a try. Would it be possible to add an option "--only-forced-subs"? So it only includes them if there is forced subs that are necessary for dialog. Maybe that is why I didn't notice the scrubbing issue. I've been using an older version of mp4box. |
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@ddevler, by default only forced subs should show up. If you notice in the background of my image, I have subtitles turned on in the accessibility settings. Same on the older MP4Box. My install script uses version 2.2.1 explicitly and points to the binary in the /Applications folder. I tested the 2.5 nightly of MP4Box and it has the same issue. I spent time trying to figure out what caused the issue, but gave up. |
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I'm still waiting on my extra testing machine to finish an encode to say problem solved and ready for testing. Its a base model 16" M1 Pro, so it may take a while. |
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I meant during encoding. Basically only include the subtitle track during processing if it's a forced subtitle track. |
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didn't work for me. I tried with The Wolverine as ISO file which contains a forced subtitle track. I have a The Wolverine_subtitles.sup file but not .srt. I'm guessing something failed with the conversion. |
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I wonder if there was an issue installing tesseract or something. Now that I am using MP4Box, maybe I can go back to using sub/idx instead of trying to OCR into SRT. I’ll try to get that done today. |
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Quick update and sorry this is such a pain everyone, testing just takes so long. I tried reverting back to sub/idx instead of using OCR to generate srt files. QuickTime doesn't like them. I couldn't find any documented way to get QuickTime to work with that image based sub format. I fixed the issue with srts. I didn't include tesseract in the deps and I was deleting the srt in the code. One of the changes left that stale piece of code. Neither of those issues were affecting me while developing since I already had the deps installed and I was using --keep-files so I could watch the process and debug each step. Oops. I am again testing the released version on a blank test machine. This takes a while because I need to erase and load macOS, then copy an ISO then run the entire bd-to-avp on a M1 Pro. Hopefully I will have a confirmed working version tomorrow. Again sorry for all the back and forth on something so simple. |
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vmware is now free for personal use. I usually make an empty VM for testing software. Then delete it after the test and copy over the empty image again. Copy is usually quicker than reloading the entire OS. |
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Ok, it's now working on a clean macOS install with default options. Feel free to give it a try everyone. |
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If anyone has this specific issue again, feel free to reopen. Thank you for the help everyone. |
Using the following command, you can see that the keyframes are very regularly spaced every 33 frames.
ffprobe -select_streams v:0 -show_frames -show_entries frame=pict_type -of csv input.mov | grep -n 'I' | cut -d ':' -f 1
follow command show：moov before mdat.
mp4box -info MARVELS\ IRON\ MAN\ 3\ -\ BLU-RAY\ 3D_AVP.mov
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