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Bjorn Roche aba926e7d6 lavfi/paletteuse: fix to support transparency 
This patch enables paletteuse to identify the transparency in incoming
video and tag transparent pixels on outgoing video with the correct
index from the palette.

This requires tracking the transparency index in the palette,
establishing an alpha threshold below which a pixel is considered
transparent and above which the pixel is considered opaque, and
additional changes to track the alpha value throughout the conversion
process.

This change is a partial fix for https://trac.ffmpeg.org/ticket/4443
However, animated GIFs are still output incorrectly due to a bug
in gif optimization which does not correctly handle transparency.

Signed-off-by: Clément Bœsch <u@pkh.me>
2017-10-28 17:14:26 +02:00
..
doxy Merge commit '257f00ec1a' 2016-06-22 11:28:51 +02:00
examples Merge commit 'b200a2c8da' 2017-10-26 17:03:09 -03:00
.gitignore Merge commit '257f00ec1a' 2016-06-22 11:28:51 +02:00
APIchanges Merge commit '083ea87681' 2017-10-23 19:17:31 -03:00
authors.texi
bitstream_filters.texi lavc: Add mpeg2_metadata bitstream filter 2017-10-17 20:56:30 +01:00
bootstrap.min.css
build_system.txt doc/build_system: Document how to build decoder fuzzer 2017-05-08 17:02:02 +02:00
codecs.texi avcodec: drop deprecated vismv option 2017-10-23 16:52:24 -03:00
decoders.texi Fix several typos 2017-09-21 16:17:02 -08:00
default.css
demuxers.texi avformat/hls: Fix DoS due to infinite loop 2017-08-27 19:19:00 +02:00
developer.texi doc/developer: Add terse documentation of assumed C implementation defined behavior 2017-05-01 17:59:10 +02:00
devices.texi
doxy-wrapper.sh doc: make apidoc output independent of SRC_PATH 2016-01-02 12:11:36 +01:00
Doxyfile doc: fix spelling errors 2016-10-21 23:58:47 +02:00
encoders.texi Merge commit '4141a5a240' 2017-10-03 21:28:07 -03:00
errno.txt doc/errno: fix description typo for ENAMETOOLONG 2015-12-18 04:04:14 +01:00
faq.texi Merge commit '4141a5a240' 2017-10-03 21:28:07 -03:00
fate.texi Merge commit '963b3ab11f' 2017-03-19 18:34:48 +01:00
fate_config.sh.template Merge commit '35d1f726eb' 2017-05-05 09:27:18 +02:00
ffmpeg-bitstream-filters.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
ffmpeg-codecs.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
ffmpeg-devices.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
ffmpeg-filters.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
ffmpeg-formats.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
ffmpeg-protocols.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
ffmpeg-resampler.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
ffmpeg-scaler.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
ffmpeg-utils.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
ffmpeg.texi ffmpeg: add -bitexact flag to simplify enabling bitexact mode in (de)muxer and (de/en)coder 2017-10-23 12:41:04 +02:00
ffmpeg.txt
ffplay.texi ffplay: allow borderless playback windows 2017-02-01 22:03:26 +01:00
ffprobe.texi Fix several typos 2017-09-21 16:17:02 -08:00
ffprobe.xsd ffprobe: Print color properties from show_frames 2017-07-21 20:19:07 +02:00
ffserver.conf lavc: remove libfaac wrapper 2016-10-01 19:58:04 +01:00
ffserver.texi Fix several typos 2017-09-21 16:17:02 -08:00
fftools-common-opts.texi doc/fftools-common-opts: Fixed a typo in the common arguments list 2017-04-18 02:50:06 +02:00
filter_design.txt doc: update filter_design.txt. 2017-09-12 11:03:51 +02:00
filters.texi lavfi/paletteuse: fix to support transparency 2017-10-28 17:14:26 +02:00
formats.texi avformat: make flush_packets a tri-state and set it to -1 (auto) by default 2017-06-24 18:51:29 +02:00
general.texi Add SUP/PGS subtitle muxer 2017-09-09 12:07:14 +02:00
git-howto.texi Merge commit '41ed7ab45f' 2016-06-21 21:55:34 +02:00
indevs.texi avdevice/decklink_dec: 32 bit audio support 2017-10-18 21:45:24 +02:00
issue_tracker.txt doc/issue_tracker.txt: various updates 2015-12-11 11:33:29 -09:00
lexicon doc: add a lexicon 2017-02-03 15:03:44 +01:00
libav-merge.txt doc/libav-merge: mention skipped or incomplete runtime alignment commits 2017-09-27 23:58:20 -03:00
libavcodec.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
libavdevice.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
libavfilter.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
libavformat.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
libavutil.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
libswresample.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
libswscale.texi doc: set documentencoding on toplevel texi files. 2015-02-19 11:30:30 +01:00
mailing-list-faq.texi doc: Add mailing list FAQ 2017-10-03 15:25:07 -08:00
Makefile doc: Add mailing list FAQ 2017-10-03 15:25:07 -08:00
metadata.texi doc: More semantic markup using @samp and @var where appropriate 2015-03-23 17:08:08 +01:00
mips.txt Edit documentation and versioning for the fixed point AAC decoder 2015-07-22 23:25:33 +02:00
multithreading.txt Merge commit 'def97856de' 2015-07-27 22:50:18 +02:00
muxers.texi movenc: Add an option for enabling negative CTS offsets 2017-09-28 18:15:45 +02:00
nut.texi Merge commit '41ed7ab45f' 2016-06-21 21:55:34 +02:00
optimization.txt build: Prefer NASM assembler over YASM 2017-06-21 17:00:30 -03:00
outdevs.texi Merge commit '4141a5a240' 2017-10-03 21:28:07 -03:00
patchwork doc/patchwork: Document the patchwork states 2016-10-26 19:46:00 +02:00
platform.texi build: Prefer NASM assembler over YASM 2017-06-21 17:00:30 -03:00
print_options.c Merge commit '2025d37871' 2017-03-29 15:20:10 +02:00
protocols.texi doc/protocols: add option usage description 2017-02-13 12:23:03 -09:00
rate_distortion.txt
resampler.texi swresample/options: enable linear_interp and exact_rational by default 2017-03-17 00:08:03 +07:00
scaler.texi doc/scaler: mention default scaling algorithm 2017-01-09 12:58:25 -09:00
snow.txt fix some a/an typos 2016-03-28 14:13:17 -08:00
style.min.css
swresample.txt
swscale.txt cosmetics: Fix spelling mistakes 2016-05-04 18:16:21 +02:00
t2h.init doc/t2h: use container 2016-10-03 00:16:27 +01:00
t2h.pm doc/t2h: use container 2016-10-03 00:16:27 +01:00
tablegen.txt
texi2pod.pl doc: escape left brace in texi2pod.pl regex 2016-07-10 13:34:57 +02:00
texidep.pl
undefined.txt doc: Add initial documentation explaining undefined behavior and SUINT 2017-07-21 17:37:05 +02:00
utils.texi avutil/eval: add linear interpolation helper 2017-08-19 12:42:24 +02:00
writing_filters.txt Merge commit '11a9320de5' 2017-05-03 16:49:12 +02:00