Re: [FFmpeg-user] 5% of audio samples missing when capturing audio on a mac

I have had a chance to test the issue on friends' laptops so here are two more data points. They have only version 4.3.1 I believe, not the latest HEAD. Their built-in mic sample rate is 48000Hz (I suppose more recent laptops updated it?). 1) MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports)

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Re: [FFmpeg-user] Can ffmpeg's filter_compex and audio filtering (-af) be used simultaneously?

On Sun, Sep 13, 2020 at 4:14 PM Dennis Mungai wrote: > Hello there, > > Can a standard complex filter graph (initialized via -filter_complex) be > used with an audio filter (inserted via -af) in the same command? > > Take this rudimentary example snippet: > > ffmpeg -fflags +genpts -vsync 1 \ >

[FFmpeg-user] Can ffmpeg's filter_compex and audio filtering (-af) be used simultaneously?

Hello there, Can a standard complex filter graph (initialized via -filter_complex) be used with an audio filter (inserted via -af) in the same command? Take this rudimentary example snippet: ffmpeg -fflags +genpts -vsync 1 \ -threads 1 -dn \ -i

[FFmpeg-user] Question about -noauto_conversion_filters

Hello all, I'm just testing the new -noauto_conversion_filters option. As the first step, I'm running this command line (without the new option): ffmpeg -v verbose -f lavfi -i testsrc2=s=svga:d=5,format=yuv422p10le -vf lut3d="VLog_to_V709.cube" -pix_fmt yuv422p10le -c:v h264 -y out.mov This

Re: [FFmpeg-user] Pixel format: default and filter?

Hi, > How can I determine the pixel formats that ffmpeg has chosen for the filters' > input and output pads? I'm not sure "chosen" is the best way to describe it, but inserting the showinfo filter will print the format of each frame at that point in the filterchain. But as format conversions

Re: [FFmpeg-user] Pixel format: default and filter?

Am 13.09.2020 um 17:27 schrieb amin...@mailbox.org: On Sun, Sep 13, 2020 at 07:06:56AM -0400, Edward Park wrote: Hi, ffprobe now reports out.mov being yuv420p. Is this an implicit conversion to a lower bit depth? It's just the default output format for overlay. It's commonly used for stuff

Re: [FFmpeg-user] Pixel format: default and filter?

On Sun, Sep 13, 2020 at 07:06:56AM -0400, Edward Park wrote: > Hi, > > > ffprobe now reports out.mov being yuv420p. Is this an implicit conversion > > to a lower bit depth? > > It's just the default output format for overlay. It's commonly used for stuff > across colorspaces (like yuv420p

Re: [FFmpeg-user] Pixel format: default and filter?

amin...@mailbox.org (12020-09-12): > But if I create a trivial filter: ^^^ > > ffmpeg -i a.mov -i b.mov -filter_complex '[0:v][1:v]overlay' out.mov ^^^ There's your problem: your filter is not trivial at all. Overlay requires

Re: [FFmpeg-user] Pixel format: default and filter?

Hi, > ffprobe now reports out.mov being yuv420p. Is this an implicit conversion to > a lower bit depth? It's just the default output format for overlay. It's commonly used for stuff across colorspaces (like yuv420p video and argb png logos overlaid) especially with alpha. You can set format