Move sample rate and sample format conversion utils into FFMPEGCommon.cpp
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scotts
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Apr 11, 2025
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| UniqueAVFrame convertAudioAVFrameSampleFormatAndSampleRate( | ||
| const UniqueSwrContext& swrContext, | ||
| const UniqueAVFrame& srcAVFrame, |
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Nit: we should be consistent about src and source. I have a preference for src, as it's a universal abbreviation, particularly when paired with dst. But if we say source in a lot of other places, we should stick with that.
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Double nit, and I recognize this name already existed: convertAudioAVFrameSampleFormatAndSampleRate() is very long, and I feel like we're encoding parameter names that modify the operation into the name. I feel like it's clearer as just convertAudioAVFrame().
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Sounds good, I'll merge as-is and follow-up with a PR to address these
scotts
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Apr 11, 2025
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This PR moves the sample rate and sample format conversions utils from SingleStreamDecoder into FFMPEGCommon. Sample format conversion is needed for encoding too, so we need to make them common.
Specifically:
SingleStreamDecoder::createSwrContextis removed and its logic is not part of FFMPEGCommon'sallocateSwrContext, which was renamed intocreateSwrContextSingleStreamDecoder::convertAudioAVFrameSampleFormatAndSampleRateis moved tooInputs are slightly modified to account for the fact that there's no
streamInfo_anymore. Other than that, this is just copy/pasting code.