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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-26 19:01:44 +02:00
FFmpeg/doc
Anton Khirnov 2f24290c8e fftools/ffmpeg: disable and deprecate -qphist
This option adds a long string of numbers to the progress line, where
i-th number contains the base-2 logarithm of the number of times a frame
with this QP value was seen by print_report().

There are multiple problems with this feature:
* despite this existing since 2005, web search shows no indication
  that it was ever useful for any meaningful purpose;
* the format of what is printed is entirely undocumented, one has to
  find it out from the source code;
* QP values above 31 are silently ignored;
* it only works with one video stream;
* as it relies on global state, it is in conflict with ongoing
  architectural changes.

It then seems that the nontrivial cost of maintaining this option is not
worth its negligible (or possibly negative - since it pollutes the
already large option space) value.
Users who really need similar functionality can also implement it
themselves using -vstats.
2023-04-13 15:11:56 +02:00
..
doxy
examples doc/examples/qsv_transcode: Fix a bug when use more than one parameter set 2023-03-17 14:13:37 +08:00
.gitignore
APIchanges avutil/hdr_dynamic_metadata: allow av_dynamic_hdr_plus_to_t35() to accept an existing buffer 2023-04-05 09:47:12 -03:00
authors.texi Use https for repository links 2023-03-01 21:59:10 +01:00
bitstream_filters.texi
bootstrap.min.css
build_system.txt
codecs.texi
community.texi doc: Fix building community.html from the new community.texi 2023-03-01 09:42:09 +02:00
decoders.texi lavc/libaribcaption.c: add ARIB caption decoder using libaribcaption 2023-03-28 12:05:19 -04:00
default.css
demuxers.texi doc: improve IMF demuxer documentation 2023-02-21 19:38:54 -08:00
developer.texi doc/developer.texi: add a section on API/ABI compatibility 2023-03-20 10:52:17 +01:00
devices.texi
doxy-wrapper.sh
Doxyfile
encoders.texi doc/encoders: add an entry for the frame_length option from libfdk-aac 2023-03-31 10:17:57 -03:00
errno.txt
faq.texi
fate_config.sh.template
fate.texi
ffmpeg-bitstream-filters.texi
ffmpeg-codecs.texi
ffmpeg-devices.texi
ffmpeg-filters.texi
ffmpeg-formats.texi
ffmpeg-protocols.texi
ffmpeg-resampler.texi
ffmpeg-scaler.texi
ffmpeg-utils.texi
ffmpeg.texi fftools/ffmpeg: disable and deprecate -qphist 2023-04-13 15:11:56 +02:00
ffmpeg.txt
ffplay.texi
ffprobe.texi
ffprobe.xsd fftools/ffprobe: print crop_* frame fields 2023-03-26 16:39:59 -03:00
fftools-common-opts.texi
filter_design.txt
filters.texi doc/filters/find_rect: extend documentation 2023-04-02 16:22:14 +02:00
formats.texi
general_contents.texi avformat: add RKA demuxer 2023-02-11 21:29:35 +01:00
general.texi
git-howto.texi Use https for repository links 2023-03-01 21:59:10 +01:00
indevs.texi
issue_tracker.txt
lexicon
libav-merge.txt
libavcodec.texi
libavdevice.texi
libavfilter.texi
libavformat.texi
libavutil.texi
libswresample.texi
libswscale.texi
mailing-list-faq.texi doc: Merge doc/dev_community/* and Code of Conduct into a seperate file 2023-03-01 00:30:59 +01:00
Makefile doc: Merge doc/dev_community/* and Code of Conduct into a seperate file 2023-03-01 00:30:59 +01:00
metadata.texi
mips.txt
multithreading.txt
muxers.texi doc: remove docs for options removed at the bump 2023-02-19 19:29:17 +01:00
nut.texi
optimization.txt
outdevs.texi doc/outdevs/sdl: update options documentation 2023-03-29 00:15:19 +02:00
patchwork
platform.texi doc/platform: drop reference to ffmpeg.zeranoe.com 2023-04-02 16:28:54 +02:00
print_options.c
protocols.texi libavformat/tcp: add local_addr/local_port for network option 2023-03-30 12:09:49 +02:00
rate_distortion.txt
resampler.texi swresample/swresample: add a used channel layout option using the new API 2023-02-19 18:28:45 -03:00
scaler.texi
snow.txt
style.min.css
swresample.txt
swscale.txt
t2h.init
t2h.pm
tablegen.txt
texi2pod.pl
texidep.pl
transforms.md
undefined.txt
utils.texi
writing_filters.txt