Re: [FFmpeg-user] Channel manipulation and audio filter equivalencies

2020-11-18 Thread adam smith via ffmpeg-user
> On 18 Nov 2020, at 23:29, Chris Angelico wrote: > > Appreciate the help. Still not sure how all the different filters behave. No worries, I have not read any of the code so I do not really know what manipulations are occurring under the hood. As far as I can tell, the channel split is

Re: [FFmpeg-user] Channel manipulation and audio filter equivalencies

2020-11-18 Thread Chris Angelico
On Thu, Nov 19, 2020 at 10:08 AM adam smith via ffmpeg-user wrote: > > Apologies, I said LF|RF but it should be > 'channelsplit' with args 'channel_layout=7.1:channels=FL|FR’ > > "7.1" =>["FL","FR","FC","LFE","BL","BR","SL","SR"], > "7.1(wide)"

Re: [FFmpeg-user] Channel manipulation and audio filter equivalencies

2020-11-18 Thread adam smith via ffmpeg-user
Apologies, I said LF|RF but it should be 'channelsplit' with args 'channel_layout=7.1:channels=FL|FR’ "7.1" =>["FL","FR","FC","LFE","BL","BR","SL","SR"], "7.1(wide)" =>["FL","FR","FC","LFE","BL","BR","FLC","FRC"],

Re: [FFmpeg-user] Channel manipulation and audio filter equivalencies

2020-11-18 Thread Chris Angelico
On Thu, Nov 19, 2020 at 9:21 AM adam smith via ffmpeg-user wrote: > > > > On 18 Nov 2020, at 21:55, Chris Angelico wrote: > > > > But when I tried things along these lines, I got complaints that some > > of the outputs weren't connected to anything. > > I didn’t add the input stream as I am not

Re: [FFmpeg-user] Channel manipulation and audio filter equivalencies

2020-11-18 Thread adam smith via ffmpeg-user
> On 18 Nov 2020, at 21:55, Chris Angelico wrote: > > But when I tried things along these lines, I got complaints that some > of the outputs weren't connected to anything. I didn’t add the input stream as I am not sure what stream it is on your source. If could be something like… ffmpeg

Re: [FFmpeg-user] Channel manipulation and audio filter equivalencies

2020-11-18 Thread Chris Angelico
On Thu, Nov 19, 2020 at 8:48 AM adam smith via ffmpeg-user wrote: > > > > On 12 Nov 2020, at 06:10, Chris Angelico wrote: > > > > Anyone have recommendations on these options, or any other preferred > > way to remap channels at maximum quality? > > You could try using the channelsplit and

Re: [FFmpeg-user] Channel manipulation and audio filter equivalencies

2020-11-18 Thread adam smith via ffmpeg-user
> On 12 Nov 2020, at 06:10, Chris Angelico wrote: > > Anyone have recommendations on these options, or any other preferred > way to remap channels at maximum quality? You could try using the channelsplit and selecting the specific channels you want and then merging them into a single stream.

Re: [FFmpeg-user] Channel manipulation and audio filter equivalencies

2020-11-11 Thread Chris Angelico
On Fri, Nov 6, 2020 at 2:43 AM Chris Angelico wrote: > The real challenge is selecting two channels and trying to make them > into the left and right channels of a new stereo audio channel. One > option is channelmap: > > ffmpeg -loglevel error -stats -y -i Original.mkv -af >

[FFmpeg-user] Channel manipulation and audio filter equivalencies

2020-11-05 Thread Chris Angelico
Hi! (First time post on this list.) I'm not a hugely skilled audiophile, and I'm trying to do some audio manipulation with ffmpeg. At times, the result isn't what I'd like it to be, and I'm not always sure why, so the first step right now is to try to understand what on earth it is that I'm