PCM files larger than 4GB are not indexed by WAVSource

FranceBB · 19th July 2022, 09:48

Hi there,
I noticed an issue with PCM files larger than 4GB.
Basically, if you have a PCM file larger than 4GB saved as .wav and you try to index it using WAVSource, it won't index it.
I think that this is related to the fact that WAVSource only supports the old WAV container and not w64 nor rf64.

To reproduce this:

Code:

p1=ColorBars(848, 480, pixel_type="YV24")
p2=ColorBars(848, 480, pixel_type="YV24")
p1++p2

ch1=GetChannel(1)
ch2=GetChannel(2)
MergeChannels(ch1, ch2, ch1, ch2, ch1, ch2, ch1, ch2, ch1, ch2, ch1, ch2, ch1, ch2, ch1, ch2)

save as .wav on VirtualDub.

Then try to index it in Avisynth:

Code:

video=BlankClip(length=215783)
audio=WAVSource("Y:\00_INGEST_MAM\Colorbars.wav")
AudioDub(video, audio)

Will result in:

AVIFileSource: Couldn't open file

On the other hand, using BestAudioSource() works:

Code:

video=BlankClip(length=215783)
audio=BestAudioSource("Y:\00_INGEST_MAM\Colorbars.wav")
AudioDub(video, audio)

So... is w64 and rf64 support going to be added to WAVSource() in Avisynth+?

AviSynth+ 3.7.2
Windows Server 2019 x64

19th July 2022, 09:48	#1 \| Link
FranceBB Broadcast Encoder Join Date: Nov 2013 Location: Royal Borough of Kensington & Chelsea, UK Posts: 2,905	PCM files larger than 4GB are not indexed by WAVSource Hi there, I noticed an issue with PCM files larger than 4GB. Basically, if you have a PCM file larger than 4GB saved as .wav and you try to index it using WAVSource, it won't index it. I think that this is related to the fact that WAVSource only supports the old WAV container and not w64 nor rf64. To reproduce this: Code: p1=ColorBars(848, 480, pixel_type="YV24") p2=ColorBars(848, 480, pixel_type="YV24") p1++p2 ch1=GetChannel(1) ch2=GetChannel(2) MergeChannels(ch1, ch2, ch1, ch2, ch1, ch2, ch1, ch2, ch1, ch2, ch1, ch2, ch1, ch2, ch1, ch2) save as .wav on VirtualDub. Then try to index it in Avisynth: Code: video=BlankClip(length=215783) audio=WAVSource("Y:\00_INGEST_MAM\Colorbars.wav") AudioDub(video, audio) Will result in: AVIFileSource: Couldn't open file On the other hand, using BestAudioSource() works: Code: video=BlankClip(length=215783) audio=BestAudioSource("Y:\00_INGEST_MAM\Colorbars.wav") AudioDub(video, audio) So... is w64 and rf64 support going to be added to WAVSource() in Avisynth+? AviSynth+ 3.7.2 Windows Server 2019 x64 __________________ LUT Collection FFAStrans Videotek - AAA - SafeColorLimiter