| Message ID | af157c6a-cf59-a100-ee82-e9f06554be8a@gyani.pro |
|---|---|
| State | Accepted |
| Commit | f60fdbc96074a884eaa36d44946415203d3b2b79 |
| Headers | show |
2019-01-17 10:47 GMT+01:00, Gyan <ffmpeg@gyani.pro>: > Fixes alpha extraction for sample at > > https://08488297638989341201.googlegroups.com/attach/85d30cd6b8095/Circle%20Ink%20Bleed_10.mov This is a textfile afaict. Carl Eugen
On Thu, Jan 17, 2019 at 20:38:44 +0100, Carl Eugen Hoyos wrote: > > Fixes alpha extraction for sample at > > > > https://08488297638989341201.googlegroups.com/attach/85d30cd6b8095/Circle%20Ink%20Bleed_10.mov > > This is a textfile afaict. The correct download link seems to be https://groups.google.com/group/qlab/attach/85d30cd6b8095/Circle%20Ink%20Bleed_10.mov?part=0.1 Moritz
2019-01-17 10:47 GMT+01:00, Gyan <ffmpeg@gyani.pro>: > Fixes alpha extraction for sample at > > https://08488297638989341201.googlegroups.com/attach/85d30cd6b8095/Circle%20Ink%20Bleed_10.mov > > as seen in > > ffplay -i in -vf alphaextract > At present, 16-bit auto-scaled format results in incorrect alpha > extraction. Does that mean that there is an unreported bug in the colour space conversion? Carl Eugen
On 19-01-2019 06:21 PM, Carl Eugen Hoyos wrote: > >> At present, 16-bit auto-scaled format results in incorrect alpha >> extraction. > Does that mean that there is an unreported bug in the colour > space conversion? Forcing a manual conversion to the same output format as the auto-scaler avoids the error, so looks like a config error rather than the conversion itself I don't have time to trace it at present. Only wanted to get the immediate use-case fixed. Thanks, Gyan
diff --git a/libavfilter/vf_extractplanes.c b/libavfilter/vf_extractplanes.c index f9171572ed..739c2420cb 100644 --- a/libavfilter/vf_extractplanes.c +++ b/libavfilter/vf_extractplanes.c @@ -99,6 +99,8 @@ AVFILTER_DEFINE_CLASS(extractplanes); AV_PIX_FMT_YUV422P12##suf, \ AV_PIX_FMT_YUV444P12##suf, \ AV_PIX_FMT_YUV440P12##suf, \ + AV_PIX_FMT_YUVA422P12##suf, \ + AV_PIX_FMT_YUVA444P12##suf, \ AV_PIX_FMT_GBRP10##suf, AV_PIX_FMT_GBRAP10##suf, \ AV_PIX_FMT_GBRP12##suf, AV_PIX_FMT_GBRAP12##suf, \ AV_PIX_FMT_YUV420P9##suf, \
Fixes alpha extraction for sample at https://08488297638989341201.googlegroups.com/attach/85d30cd6b8095/Circle%20Ink%20Bleed_10.mov as seen in ffplay -i in -vf alphaextract Gyan From 122f500e09b2741f3865da5c3f612ee04dcd7e21 Mon Sep 17 00:00:00 2001 From: Gyan Doshi <ffmpeg@gyani.pro> Date: Thu, 17 Jan 2019 15:01:11 +0530 Subject: [PATCH] avfilter/extractplanes: add support for 12-bit YUVA formats At present, 16-bit auto-scaled format results in incorrect alpha extraction. --- libavfilter/vf_extractplanes.c | 2 ++ 1 file changed, 2 insertions(+)