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29th January 2022, 00:30 | #1 | Link |
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Join Date: Dec 2020
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staxrip trouble need alternative please
I am new to video encoding so i am thankful for any help.
I have been using staxrip as a front end to encode mt media library and have run into trouble with the output file frame rate becoming variable instead of constant 23/976 like the source. This is happening with both x264 and x265, from what i found online it seems to be a mkvextract problem, regardless could anyone tell me how to get a constant frame rate with stax or perhaps recommend an alternative, I will be using x264 and x265 to shrink blu ray remuxs. Thank you |
29th January 2022, 09:04 | #3 | Link |
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Location: Auckland, New Zealand
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Gah, i can confirm that Staxrip is changing it from Constant frame rate mode to a variable frame rate mode.
I've just had a dig through the logs of some past encodes. Input Code:
Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.1 Format settings : CABAC / 4 Ref Frames Format, CABAC : Yes Format, Reference frames : 4 frames Codec ID : V_MPEG4/ISO/AVC Duration : 2 h 9 min Bit rate mode : Variable Bit rate : 27.9 Mb/s Maximum bit rate : 34.5 Mb/s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 23.976 (24000/1001) FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.561 Stream size : 25.2 GiB (89%) Language : English Default : No Forced : No Code:
Video ID : 1 Format : HEVC Format/Info : High Efficiency Video Coding Format profile : Main 10@L4@Main Codec ID : V_MPEGH/ISO/HEVC Duration : 2 h 9 min Bit rate : 4 405 kb/s Width : 1 920 pixels Height : 800 pixels Display aspect ratio : 2.40:1 Frame rate mode : Variable Frame rate : 23.976 (24000/1001) FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 10 bits Bits/(Pixel*Frame) : 0.120 Stream size : 3.97 GiB (90%) Writing library : x265 3.5+1-ce882936d:[Windows][MSVC 1900][64 bit] 10bit Default : Yes Forced : No EDIT: might have something to do with the importing of timestamps that was added recently if i remember correctly. In Staxrip try disabling, Options > Timestamps | untick extract timestamps from MKV files (if existing). EDIT2: You can fix the MKV's by loading them in to MKVtoolnix and setting Default duration/FPS: under Timestamps and default duration when the video is selected, i tested "24000/1001" and multiplexed and the output file is now Constant.
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A Man Eating Duck Last edited by AMED; 29th January 2022 at 09:23. |
29th January 2022, 15:28 | #4 | Link |
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Thank you for the response AMED, I am setting up an encode now to test without import timestamps checked, will report back once its done later today.
If this works for cfr encodes from a cfr source then how would one handle a vfr source? does vfr need timestamps to be properly re encoded? |
14th March 2022, 00:08 | #7 | Link |
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Yes disable importing of timestamps. It only causes trouble. I don't understand when they added it, why it is not disabled by default. Who uses variable frame rate? Almost no one or very few and since it is an advanced feature that no one uses, they should have disabled it by default.
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4th April 2023, 07:16 | #8 | Link |
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@lazyjss Check out our (open source) GUIs collection: https://github.com/forart/HyMPS/blob...Tools.md#guis-
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Hybrid Multimedia Production Suite will be a platform-indipendent open source suite for advanced audio/video contents production. Official git: https://www.forart.it/HyMPS/ |
4th April 2023, 10:25 | #9 | Link | |
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Quote:
RipBot264....
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Long term RipBot264 user. RipBot264 modded builds.. *new* x264 & x265 addon packs.. |
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