Re: [FFmpeg-user] libaom - first frame not lossless when > 7 frames in source

Am Sa., 6. Juni 2020 um 21:05 Uhr schrieb Kieran O Leary : > I was doing some tests with libaom and lossness encoding and with synthetic > files and some real world files, I kept finding that the framemd5s for the > first frame was different than the source, but every other libaom encoded > frame

Re: [FFmpeg-user] libaom - first frame not lossless when > 7 frames in source

On Sun, Jun 7, 2020 at 10:08 PM Kieran O Leary wrote: > > > On Sun, Jun 7, 2020 at 10:06 PM pdr0 wrote: > >> Intra only compression , using -g 1 makes it lossless . Maybe a clue there >> > > Aye - I can confirm that -g 1 produces matching framemd5s. > Just checking in on this issue - any

Re: [FFmpeg-user] libaom - first frame not lossless when > 7 frames in source

On Sun, Jun 7, 2020 at 10:06 PM pdr0 wrote: > Intra only compression , using -g 1 makes it lossless . Maybe a clue there > Aye - I can confirm that -g 1 produces matching framemd5s. K ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] libaom - first frame not lossless when > 7 frames in source

Intra only compression , using -g 1 makes it lossless . Maybe a clue there Not sure why there is a discrepancy between aomenc, and ffmpeg libaom-av1 -- Sent from: http://www.ffmpeg-archive.org/ ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] libaom - first frame not lossless when > 7 frames in source

Hi Carl, On Sun, Jun 7, 2020 at 9:18 PM Carl Eugen Hoyos wrote: > Am So., 7. Juni 2020 um 19:16 Uhr schrieb Kieran O Leary > : > > > On Sun 7 Jun 2020, 17:56 pdr0, wrote: > > > > > Kieran O Leary wrote > > > > Any idea what's happening? Will I get the libx264-style answer: > 'this is > > > >

Re: [FFmpeg-user] libaom - first frame not lossless when > 7 frames in source

Carl Eugen Hoyos-2 wrote > Could it be the number of cores in your system / is the issue reproducible > with -threads 1 ? Issue is still present with -threads 1 Does not appear to be related to pixel format (eg. affects yuv420p source test as well) -- Sent from:

Re: [FFmpeg-user] libaom - first frame not lossless when > 7 frames in source

Am So., 7. Juni 2020 um 19:16 Uhr schrieb Kieran O Leary : > On Sun 7 Jun 2020, 17:56 pdr0, wrote: > > > Kieran O Leary wrote > > > Any idea what's happening? Will I get the libx264-style answer: 'this is > > > googles issue, > > > > I can replicate the ffmpeg issue (and with other sources), but

Re: [FFmpeg-user] libaom - first frame not lossless when > 7 frames in source

Hi On Sun 7 Jun 2020, 17:56 pdr0, wrote: > Kieran O Leary wrote > > Any idea what's happening? Will I get the libx264-style answer: 'this is > > googles issue, > > I can replicate the ffmpeg issue (and with other sources), but I don't know > what the problem is > > It's not a "google" issue,

Re: [FFmpeg-user] libaom - first frame not lossless when > 7 frames in source

Kieran O Leary wrote > Any idea what's happening? Will I get the libx264-style answer: 'this is > googles issue, I can replicate the ffmpeg issue (and with other sources), but I don't know what the problem is It's not a "google" issue, because AOM aomenc.exe works, and produces lossless output

[FFmpeg-user] libaom - first frame not lossless when > 7 frames in source

Hi, I was doing some tests with libaom and lossness encoding and with synthetic files and some real world files, I kept finding that the framemd5s for the first frame was different than the source, but every other libaom encoded frame produced matching framemd5s for source and output. I then