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Conversion to avoid no rendering
Hello Everyone,
I am converting some wmv video to apple prores hq using ffmpeg so that i can use those file directly in fcp without rendering. But i am in confusion which audio codec to use? I tried using alac codec but later i saw that fcp ask us to avoid alac codec.
ffmpeg -i input.wmv -vcodec prores -profile:v 3 -acodec alac output.mov
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4 Replies
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PCM audio. 48kHz, 16bit Stereo. And yes, ProRes 422…not HQ. Just because it sounds better doesn’t mean it is. For the videos you are converting, it’s a waste of space.
Shane
Little Frog Post
Read my blog, Little Frog in High Def -
Hi,
I am using ProRes422 (Normal) and PCM Audio little Endian 16 bit and 48 khz using ffmpeg. But still when i keep the video in timeline, it shows a Green line and audio is just perfect. But when converted using mpeg streamclip it works just fine in the same sequence.
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Sometimes there is an attribute that is not set correctly. If you have Prores and the audio specs are correct then highlight the clip, select remove attributes and select basic motion and distort. This often resets attributes and the green render line disappears.
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Hello, you can read about prores conversion (hq or not) using ffmpeg here:
https://trac.ffmpeg.org/wiki/vfxEncodingGuide
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