Re: [FFmpeg-devel] decklink 24/32 bit question

2017-10-18 Thread Michael Niedermayer
On Wed, Oct 18, 2017 at 01:15:21PM -0700, Douglas Marsh wrote: [...] > *dither= I am not aware of any audio bit-depth dithering algorithms > in FFMPEG, however it would make sense they do exist as this > software is quite simply an amazing 'swiss-army knife' i didnt follow the thread but theres

Re: [FFmpeg-devel] decklink 24/32 bit question

2017-10-18 Thread Devin Heitmueller
Hi Doug, > On Oct 18, 2017, at 4:15 PM, Douglas Marsh wrote: > > I am not really sure I follow. I am not sure supporting 24-bit is a big > issue. A sample size of 32-bit should work fine for most folks. I can only > think of people (in the output stream) converting to 24-bits

Re: [FFmpeg-devel] decklink 24/32 bit question

2017-10-18 Thread Douglas Marsh
On 2017-10-17 12:44, Devin Heitmueller wrote: The decklink sdk only defines two BMDAudioSampleType values: bmdAudioSampleType16bitInteger and bmdAudioSampleType32bitInteger. I don't think there's an easy way to support a 24 bit input here. Generally in this case I've used

Re: [FFmpeg-devel] decklink 24/32 bit question

2017-10-18 Thread Devin Heitmueller
Hello Marton, > On Oct 18, 2017, at 3:02 PM, Marton Balint wrote: > > > > On Tue, 17 Oct 2017, Devin Heitmueller wrote: > >>> > The decklink sdk only defines two BMDAudioSampleType values: >>> > bmdAudioSampleType16bitInteger and bmdAudioSampleType32bitInteger. I >>> >

Re: [FFmpeg-devel] decklink 24/32 bit question

2017-10-18 Thread Marton Balint
On Tue, 17 Oct 2017, Devin Heitmueller wrote: > The decklink sdk only defines two BMDAudioSampleType values: bmdAudioSampleType16bitInteger and bmdAudioSampleType32bitInteger. I don't think there's an easy way to support a 24 bit input here. Generally in this case I've used

Re: [FFmpeg-devel] decklink 24/32 bit question

2017-10-17 Thread Devin Heitmueller
> > The decklink sdk only defines two BMDAudioSampleType values: > bmdAudioSampleType16bitInteger and bmdAudioSampleType32bitInteger. I don't > think there's an easy way to support a 24 bit input here. Generally in this > case I've used bmdAudioSampleType32bitInteger and then encode it at

Re: [FFmpeg-devel] decklink 24/32 bit question

2017-10-17 Thread Douglas Marsh
On 2017-10-17 11:59, Moritz Barsnick wrote: Did you check out Dave Rice's recent patch (on this list)? It touches code in a few more places, and adds an option to select 16 vs. 32 bits. Please test, if you can. Is your subject indicating that 24 bits depth could also be supported? If so, Dave

Re: [FFmpeg-devel] decklink 24/32 bit question

2017-10-17 Thread Dave Rice
> On Oct 17, 2017, at 2:59 PM, Moritz Barsnick wrote: > > Hi Doug, > > On Tue, Oct 03, 2017 at 20:39:49 -0700, Douglas Marsh wrote: >> After digging around in places, made the following changes: > [...] >> It doesn't work (the audio capture is close but wrong), but believe it

Re: [FFmpeg-devel] decklink 24/32 bit question

2017-10-17 Thread Moritz Barsnick
Hi Doug, On Tue, Oct 03, 2017 at 20:39:49 -0700, Douglas Marsh wrote: > After digging around in places, made the following changes: [...] > It doesn't work (the audio capture is close but wrong), but believe it > is a step in the correct direction. Anybody have a clue? Saw several > names in