virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-18 03:19:31 +02:00
Code Issues Releases Activity
87,370 Commits 37 Branches 400 Tags 464 MiB
58ca446672
Commit Graph

47 Commits

Author SHA1 Message Date
Thomas Mundt
ed48e22748 avfilter/interlace: simplify code 
Signed-off-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-09-15 22:40:21 +02:00
Thomas Mundt
a7f6bfdc18 avfilter/interlace: prevent over-sharpening with the complex low-pass filter 
The complex vertical low-pass filter slightly over-sharpens the picture. This becomes visible when several transcodings are cascaded and the error potentises, e.g. some generations of HD->SD SD->HD.
To prevent this behaviour the destination pixel must not exceed the source pixel when the average of the pixels above and below is less than the source pixel. And the other way around.

Tested and approved in a visual transcoding cascade test by video professionals.
SSIM/PSNR test with the first generation of an HD->SD file as a reference against the 6th generation(3 x SD->HD HD->SD):
Results without the patch:
SSIM Y:0.956508 (13.615881) U:0.991601 (20.757750) V:0.993004 (21.551382) All:0.974405 (15.918463)
PSNR y:31.838009 u:48.424280 v:48.962711 average:34.759466 min:31.699297 max:40.857847
Results with the patch:
SSIM Y:0.970051 (15.236232) U:0.991883 (20.905857) V:0.993174 (21.658049) All:0.981290 (17.279202)
PSNR y:34.412108 u:48.504454 v:48.969496 average:37.264644 min:34.310637 max:42.373392

Signed-off-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-09-15 22:40:21 +02:00
Thomas Mundt
2da5bf4c2f avfilter/interlace: add complex vertical low-pass filter 
This complex (-1 2 6 2 -1) filter slightly less reduces interlace 'twitter' but better retain detail and subjective sharpness impression compared to the linear (1 2 1) filter.

Signed-off-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2017-05-02 14:09:50 -03:00
Thomas Mundt
207e6debf8 avfilter/interlace: change lowpass_line function prototype 
Signed-off-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-04-22 20:12:15 +02:00
Derek Buitenhuis
21f9468402 avutil: Rename FF_CEIL_COMPAT to AV_CEIL_COMPAT 
Libav, for some reason, merged this as a public API function. This will
aid in future merges.

A define is left for backwards compat, just in case some person
used it, since it is in a public header.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-01-27 16:36:46 +00:00
Nicolas George
44f660e7e7 lavfi: remove FF_LINK_FLAG_REQUEST_LOOP. 
It has no longer any effect.
 2015-09-20 19:02:33 +02:00
Clément Bœsch
0b93c6d831 avfilter/interlace: fix opt flags 2015-09-08 22:47:16 +02:00
Clément Bœsch
f790b54d98 avfilter/interlace: use AV_OPT_TYPE_BOOL 2015-09-08 22:39:24 +02:00
Paul B Mahol
a0854c084e avfilter: handle error in query_formats() in bunch of filters 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2015-04-08 13:05:06 +00:00
Michael Niedermayer
f2f88b952d Merge commit '4438c256387a5845e5cdc5c14c43f4047b68301b' 
* commit '4438c256387a5845e5cdc5c14c43f4047b68301b':
  vf_interlace: remove the warning tag in the message

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-01-07 00:03:10 +01:00
Michael Niedermayer
82b1bcd7f9 Merge commit '15ea222778caaec0877b3f9938140b707c931d96' 
* commit '15ea222778caaec0877b3f9938140b707c931d96':
  vf_interlace: merge FIELD_LOWER check

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-01-06 23:50:51 +01:00
Michael Niedermayer
6279cb3597 Merge commit '046f75a970701b4c947d38bfd2186dcc5f2ddae2' 
* commit '046f75a970701b4c947d38bfd2186dcc5f2ddae2':
  vf_interlace: also assert for height

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-01-06 23:40:16 +01:00
Michael Niedermayer
f931b1ef45 Merge commit '696141e898193311c994b399a8dc60713709092f' 
* commit '696141e898193311c994b399a8dc60713709092f':
  vf_interlace: use image width rather than linesize

Conflicts:
	libavfilter/vf_interlace.c

See: f043965cd5
Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-01-06 22:46:10 +01:00
Vittorio Giovara
4438c25638 vf_interlace: remove the warning tag in the message 
The log level is already a warning.
 2015-01-05 15:35:46 +01:00
Vittorio Giovara
15ea222778 vf_interlace: merge FIELD_LOWER check 2015-01-05 15:35:46 +01:00
Vittorio Giovara
046f75a970 vf_interlace: also assert for height 2015-01-05 15:35:46 +01:00
Vittorio Giovara
696141e898 vf_interlace: use image width rather than linesize 
Based on a patch by Michael Niedermayer <michaelni@gmx.at>.
 2015-01-05 15:35:46 +01:00
Michael Niedermayer
46b64e3098 Revert "avfilter/vf_interlace: more accurate pts calculation" 
This reverts commit df8248f66e.

the revert produces a timebase and timestamps that are more close
to what users expect

Hoped-by: koda
 2014-12-02 18:48:03 +01:00
Michael Niedermayer
6f373d75e8 Merge commit '2e1704059ae8625beda2ffde847ad22c5ba416dc' 
* commit '2e1704059ae8625beda2ffde847ad22c5ba416dc':
  vf_interlace: Add SIMD for lowpass filter

Conflicts:
	libavfilter/vf_interlace.c
	libavfilter/x86/Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-15 02:39:49 +01:00
Kieran Kunhya
2e1704059a vf_interlace: Add SIMD for lowpass filter 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-11-15 00:35:31 +01:00
Aleksey Vasenev
df8248f66e avfilter/vf_interlace: more accurate pts calculation 
Signed-off-by: Aleksey Vasenev <margtu-fivt@ya.ru>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-13 22:35:15 +01:00
Michael Niedermayer
c87f645a75 Merge commit '52269f48e835a52023656f8330262ae70e6061c4' 
* commit '52269f48e835a52023656f8330262ae70e6061c4':
  Revert "vf_interlace: deprecate lowpass option"

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-01 16:39:28 +02:00
Vittorio Giovara
52269f48e8 Revert "vf_interlace: deprecate lowpass option" 
This reverts commit 35b05c5184.
A warning is introduced in case this option is used.
 2014-08-01 13:02:29 +01:00
Michael Niedermayer
74a8dbe1c4 Merge commit '58400ac133bcfb6bf8196b4e5208bc178307739b' 
* commit '58400ac133bcfb6bf8196b4e5208bc178307739b':
  lavfi: name anonymous structs

Conflicts:
	libavfilter/buffersink.c
	libavfilter/f_select.c
	libavfilter/src_movie.c
	libavfilter/vf_drawbox.c
	libavfilter/vf_drawtext.c
	libavfilter/vf_overlay.c
	libavfilter/vf_showinfo.c
	libavfilter/vf_unsharp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-19 18:20:17 +02:00
Vittorio Giovara
58400ac133 lavfi: name anonymous structs 2014-04-19 16:20:57 +02:00
Michael Niedermayer
b14517d3cd Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  vf_interlace: deprecate lowpass option

Conflicts:
	libavfilter/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-19 16:16:41 +01:00
Vittorio Giovara
35b05c5184 vf_interlace: deprecate lowpass option 2014-02-19 12:26:34 +01:00
Michael Niedermayer
0a382aa99b Merge commit '3a16ec19d2426457419cb8a7304f97982699efda' 
* commit '3a16ec19d2426457419cb8a7304f97982699efda':
  vf_interlace: check one av_frame_clone allocation

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-19 18:06:40 +01:00
Vittorio Giovara
3a16ec19d2 vf_interlace: check one av_frame_clone allocation 2013-11-19 14:48:36 +01:00
Michael Niedermayer
325f6e0a97 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  lavfi: do not export the filters from shared objects

Conflicts:
	libavfilter/af_amix.c
	libavfilter/af_anull.c
	libavfilter/asrc_anullsrc.c
	libavfilter/f_select.c
	libavfilter/f_settb.c
	libavfilter/split.c
	libavfilter/src_movie.c
	libavfilter/vf_aspect.c
	libavfilter/vf_blackframe.c
	libavfilter/vf_colorbalance.c
	libavfilter/vf_copy.c
	libavfilter/vf_crop.c
	libavfilter/vf_cropdetect.c
	libavfilter/vf_drawbox.c
	libavfilter/vf_format.c
	libavfilter/vf_framestep.c
	libavfilter/vf_frei0r.c
	libavfilter/vf_hflip.c
	libavfilter/vf_libopencv.c
	libavfilter/vf_lut.c
	libavfilter/vf_null.c
	libavfilter/vf_overlay.c
	libavfilter/vf_scale.c
	libavfilter/vf_transpose.c
	libavfilter/vf_unsharp.c
	libavfilter/vf_vflip.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-29 11:58:11 +01:00
Anton Khirnov
cd43ca0443 lavfi: do not export the filters from shared objects 2013-10-28 15:29:54 +01:00
Michael Niedermayer
c4f3b55f50 Merge commit '06e7301a2efa8dededecbe6836ee5b59bf7e5e76' 
* commit '06e7301a2efa8dededecbe6836ee5b59bf7e5e76':
  vf_interlace: do not process an already interlaced frame

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-03 11:16:57 +02:00
Vittorio Giovara
06e7301a2e vf_interlace: do not process an already interlaced frame 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-10-02 16:40:49 +02:00
Paul B Mahol
b211607b5c avfilter: various cosmetics 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2013-09-12 14:01:43 +00:00
Vittorio Giovara
0ce1a7598e vf_interlace: fix file permissions 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2013-08-27 23:50:45 +02:00
Michael Niedermayer
86d1a5d80f Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  vf_interlace: better handling of odd video size

Conflicts:
	libavfilter/vf_interlace.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-12 14:58:41 +02:00
Michael Niedermayer
bec509db43 vf_interlace: better handling of odd video size 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-07-12 11:40:56 +03:00
Michael Niedermayer
e41bf19d2c Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  lavfi: math typo in interlace filter

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-06-18 09:31:05 +02:00
Vittorio Giovara
cd0faeee62 lavfi: math typo in interlace filter 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-06-17 12:25:43 +02:00
Paul B Mahol
d349704eef lavfi/interlace: make use of AVFILTER_DEFINE_CLASS 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2013-05-27 10:00:37 +00:00
Paul B Mahol
68def27124 lavfi/interlace: remove request frame hack 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2013-05-27 09:55:40 +00:00
Clément Bœsch
50e66726a2 lavfi: use ceil right shift for chroma width/height. 
This should fix several issues with odd dimensions inputs.

lut, vflip, pad and crop video filters also need to be checked for such
issues. It's possible sws is also affected.
 2013-05-10 17:20:06 +02:00
Clément Bœsch
7ee2daed9b lavfi/interlace: remove exec permissions. 2013-04-17 19:27:33 +02:00
Paul B Mahol
65efa1dbd9 lavfi/interlace: remove now unused av_opt_free() call 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2013-04-16 14:32:49 +00:00
Michael Niedermayer
227b4458fb vf_interlace: fix frame rate 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-04-12 16:40:35 +02:00
Michael Niedermayer
ebbd4fd5f0 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  FATE: add a test for the interlace filter
  lavfi: new interlace filter

Conflicts:
	Changelog
	configure
	doc/filters.texi
	libavfilter/Makefile
	libavfilter/allfilters.c
	tests/fate/filter.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-04-12 16:32:33 +02:00
Vittorio Giovara
3fce136798 lavfi: new interlace filter 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-04-11 21:33:07 +02:00