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Results tagged with prores
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user 1871
An intermediate video codec.
0
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FFMPEG to make Quicktime reference MOV file from ProRes MOV source
FFmpeg does not support, at present, exporting a MOV or ISO BMFF file with external data references.
- 33.8k
1
vote
Accepted
ffmpeg problem converting Prores 444 to Prores 422
The input has full chroma sub-sampling and is 12-bit, and, by default, ffmpeg will try to retain as much fidelity as possible when converting the pixel format for the output encoder. However, for the …
- 33.8k
0
votes
Accepted
If I shoot in H.264 is it worth it to export the product in ProRes?
ProRes is useful when your shoot is in some exotic or heavier-duty codec because of bitrate or compression complexity. … Or you need to collaborate with someone using FCP and they prefer to receive ProRes. …
- 33.8k
2
votes
Accepted
Bad quality encodes to Prores4444 with alpha from ffmpeg
Outputting to VP9 with alpha produces a clean result as does outputting to prores without alpha. …
- 33.8k
4
votes
Accepted
Is MP4 a valid or common container for ProRes?
No, officially, ProRes is not a registered codec for the ISOBMFF family, of which MP4 is a member. …
- 33.8k
1
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Can't tell if prores4444XQ is any different than prores4444 in ffmpeg 4.1
FFmpeg does have 12 bit pixel formats but the prores_ks encoder is limited to 10 bits. The 4444XQ profile features higher bitrates. Open a ticket at trac.ffmpeg,org, if you like.
- 33.8k
0
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Accepted
Prores ffmpeg questions
These are inter-frame codecs whereas ProRes is an intra-frame codec (each frame is coded standalone and doesn't depend on other frames for decoding). …
- 33.8k
1
vote
Accepted
ffmpeg colormatrix operations only for 8bpc?
Yes, as it says a couple of lines above, colormatrix supports only 8bpc (8-bit per component) pixel formats. So, when a 16-bit input is filtered with colormatrix, it will be converted to 8-bits. And w …
- 33.8k
1
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Accepted
ffmpeg prores alpha channel not present when colormatrix and colorspace operations are perfo...
The colorspace and colormatrix filters don't handle alpha pixel formats, so those get stripped off. The workaround is to extract the alpha and then reattach it.
ffmpeg -f image2 -framerate 24.0 -i ti …
- 33.8k
1
vote
Accepted
How to convert ProRes/Quicktime MOV to instagram-friendly with ffmpeg so I can post it on IG
ProRes, as a editing codec, uses different pixel formats. …
- 33.8k
1
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Convert to ProRes with ffmpeg adds unwanted contrast to footage
ffmpeg -i ffmpeg.MOV -vf scale=in_range=pc:out_range=tv -c:v prores -c:a copy prores_auto.mov …
- 33.8k