Questions tagged [lossless]
The lossless tag has no usage guidance.
13
questions with no upvoted or accepted answers
3
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answers
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libx265 -crf transparency
I would like to know (even if it is subjective opinion) what is considered "transparency" when encoding with libx265. In other words, what value do I need to put after "-crf" to get a video that has ...
- 99
3
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Edit MP4 Hex data to vertically or horizontally flip video in a lossless manner
I am trying to do something similar to the questions here and here, but with a small difference. I am trying to flip the video along the Y or X axes instead of doing a rotation.
The solution in those ...
- 31
3
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FFMPEG Lossless Video Output Options
I am looking for lossless video output options from FFMPEG that can be viewed without any special codecs or special players such as VLC. I want a basic use to be able to open up the video with a ...
- 31
1
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In ffmpeg truehd encoder, can you mark L and R as LT and RT (Dolby Surround)
When encoding a stereo audio stream with the ffmpeg ac3 encoder, you can specify that the L/R channels are Dolby-Surround (Pro-Logic) LT/RT channels, using the -dsur_mode 2 flag.
Is there a way to do ...
- 111
1
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0
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400
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How to Get Video Lossless Rotation When Re-encoding Using FFmpeg?
I'm looking for how to rotate a video without losing any quality when re-encoding. I currently use ffmpeg -i "inputvideo" -crf 0 -vf transpose=2 -acodec copy "outputvideo". ...
- 11
1
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Lossless H.264 MOV cannot be opened with Quicktime
I believe that this question is not the same as Lossless H.264 MP4 file created from images cannot be played in QuickTime because that question, and its answer, pertains to converting a series of PNG ...
- 111
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Trying to clip beginning and ending of clips without loosing quality. Using lossless running into issues
So I have a video file or several actually.
23.769 fps
1080p
Hvec h265 mkv
I'm trying to clip the beginning and ending. It has advertisements I don't want. I have successfully done this using ...
0
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211
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Best Lossless Video Codec for 8 bpc RGB image sequences?
I render 3D animations, many of which take days or even weeks to render at a time, and I need to keep a lossless archive of the output files. The output format from the render engine is 8 bit per ...
- 1,560
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Is it possible to do a lossless colorspace HEVC NVENC encoding without hwdownload?
I need to capture bit-perfect lossless videos of the whole screen at a certain framerate (at least 30 fps). I am currently using Windows 10 and an up-to-date version of FFmpeg. Given that the ...
- 101
0
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211
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Difficulties Using FFmpeg to Take Lossless Excerpt from .mpg to .mp4
I want output.mp4 to contain a lossless copy of video starting at 00:00:39 and ending at 00:01:29 in input.mpg. I tried this (using Windows 10):
ffmpeg -ss 00:00:39 -i input.mpg -to 00:01:29 -c:v copy ...
- 491
0
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1
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546
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Is there a way to tell ffmpeg "encode file A with format settings of file B?"
I know I could use ffprobe and then parse the text file to get the codec info of file B, but is there a simpler way?
Goal: I want to append a few seconds of silence to hundreds of audio files (who ...
- 1
0
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0
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130
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FFmpeg losslessly deconstruct video then losslessly re-encode
I need to dump all the frames losslessly from a h.265 mkv video, along with the audio track in FLAC 24bit (initially it was encoded from the source in FLAC 24bit). I then need to edit some frames and ...
0
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1
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2k
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Improve ffmpeg command for MKV to MP4 for iPad?
I have many MKVs made from DVDs and BRs by MakeMKV that I converting to MP4 so I can play/stream on my iPad Air. I now use this command for converting my MKVs to MP4:
ffmpeg -i input.mkv -strict ...
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