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Add PCM passthru and encoding#7623

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Nomis101 wants to merge 2 commits intoHandBrake:masterfrom
Nomis101:pcm
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Add PCM passthru and encoding#7623
Nomis101 wants to merge 2 commits intoHandBrake:masterfrom
Nomis101:pcm

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@Nomis101
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@Nomis101 Nomis101 commented Feb 4, 2026

Description of Change:
Add PCM passthru and PCM encoding for all 3 platforms. It misses a checkbox for PCM passthru in AudioDefaults.xib‎ because I didn't know where to put it. This will fix #950.
I have tested PCM passthru with a video file of my Sony camera (pcm_s24be audio stream) and encoding to 16-bit and 24-bit PCM with different samples.

Tested on:

  • Windows 10+ (via MinGW)
  • macOS 10.13+
  • Ubuntu Linux

@galad87
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galad87 commented Feb 5, 2026 •
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The bitrate control should be disable like for FLAC and ALAC.

It looks like something is wrong when muxing to MP4, QuickTime Player ignores the track:

user@Mac ~ % avmediainfo bbb_sunflower_1080p_30fps_normal.mp4 
Asset: bbb_sunflower_1080p_30fps_normal.mp4
Duration: 84.767 seconds (84767/1000)
Track count: 1
Track 1: Video 'vide'
	Enabled: Yes
	Format Description 1:
		Format: HEVC 'hvc1'
		Dimensions: 1920 x 1080
		Encoded Pixels: 1920 x 1080
		Presentation Dimensions: 1920 x 1080
	System support for decoding this track: Yes
	Data size: 20755062 bytes
	Media time scale: 90000
	Duration: 84.767 seconds
	Estimated data rate: 1958.795 kbit/s
	Nominal frame rate: 30.000 fps
	Minimum sample duration: 3000/90000 seconds
	Frame reordering required
	1 segment present
	Index   Media Start  Media Duration   Track Start  Track Duration 
	    1  00:00:00.067    00:01:24.767  00:00:00.000    00:01:24.767

Movie analyzed with 3 errors.
Error in Track ID 2 'soun' atom 'minf'. ASBD mBytesPerPacket 2 expected to match common sample size 2048 from the sample table. Atom: 'minf' Offset: 29058961
Error in Track ID 2 'soun' ASBD mBytesPerPacket does not match the common sample size.
Error in Track ID 2 'soun' Omitting a track that encountered an error during atom parsing.

Either libavformat is setting some wrong values, or Apple software can't read PCM stored this way.

@Nomis101
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Nomis101 commented Feb 5, 2026

I will investigate.

@Nomis101
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Nomis101 commented Feb 5, 2026

Quicktime should be working now.

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Feature request: PCM audio output (Inc Passthrough)

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@Nomis101 @galad87 @sr55