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FFmpeg git repo
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b3a0548a98
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Linjie Fu b3a0548a98 fftools/ffmpeg_filter: fix the flags parsing for scaler 
Scaler relys on "-sws_flags" option to pass the flags to swscale
and scale filter. Currently passing "sws_flags=xxx" as a filter
option to scaler leads to an incorrect option parsing.

Check and change the string to "flags=xxx" and dumped flags information.
(Refer to parse_sws_flags())

CMD:
$ffmpeg -v verbose -i input.mp4 -sws_flags lanczos+bitexact+accurate_rnd \
        -vf format=yuv420p,scale=800x600 -an -vframes 10 -f md5 -

Before:
[auto_scaler_0 @ 0x7f96c3808680] w:iw h:ih flags:'' interl:0
[auto_scaler_0 @ 0x7f96c3808680] w:1920 h:1080 fmt:yuvj420p sar:0/1 -> w:1920 h:1080 fmt:yuv420p sar:0/1 flags:0x0
[Parsed_scale_1 @ 0x7f96c3806e40] w:1920 h:1080 fmt:yuv420p sar:0/1 -> w:800 h:600 fmt:yuv420p sar:0/1 flags:0x0
MD5=ff1d6091690c6fcd36d458d2a9f648ce

After:
[auto_scaler_0 @ 0x7fe94563b4c0] w:iw h:ih flags:'lanczos+bitexact+accurate_rnd' interl:0
[auto_scaler_0 @ 0x7fe94563b4c0] w:1920 h:1080 fmt:yuvj420p sar:0/1 -> w:1920 h:1080 fmt:yuv420p sar:0/1 flags:0xc0200
[Parsed_scale_1 @ 0x7fe945639d00] w:1920 h:1080 fmt:yuv420p sar:0/1 -> w:800 h:600 fmt:yuv420p sar:0/1 flags:0xc0200
MD5=ff1d6091690c6fcd36d458d2a9f648ce

Signed-off-by: Linjie Fu <linjie.justin.fu@gmail.com>
2021-08-05 22:23:49 +08:00
compat avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
doc avfilter/f_graphmonitor: use sample_count_in/out 2021-08-05 15:42:48 +02:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools fftools/ffmpeg_filter: fix the flags parsing for scaler 2021-08-05 22:23:49 +08:00
libavcodec lavc/qsvenc: pass the color properties to the SDK 2021-08-04 10:06:26 -03:00
libavdevice lavd/lavfi.c: Set time_base for 608 cc to container time_base. 2021-08-02 14:00:52 +02:00
libavfilter lavfi/vf_scale: use default swscale flags for scaler 2021-08-05 22:23:49 +08:00
libavformat avformat/mxfdec: prefer footer and complete partitions for metadata 2021-08-01 02:57:53 +02:00
libavutil avutil/Makefile: Apply CFLAGS for compilation 2021-08-04 12:59:42 +02:00
libpostproc postproc/postprocess: Remove legacy cruft 2021-07-29 22:02:06 +02:00
libswresample (postproc|swresample)/version: Don't include libavutil/avutil.h 2021-07-29 22:02:05 +02:00
libswscale avutil/internal, swresample/audioconvert: Remove cpu.h inclusions 2021-07-22 14:33:45 +02:00
presets
tests lavfi/vf_scale: use default swscale flags for scaler 2021-08-05 22:23:49 +08:00
tools tools/target_dec_fuzzer: Adjust threshold for VP6F 2021-07-28 19:15:26 +02:00
.gitattributes
.gitignore avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
.mailmap
.travis.yml
Changelog avfilter: add afwtdn filter 2021-07-24 12:24:40 +02:00
configure avfilter/vaf_spectrumsynth: switch to TX FFT from avutil 2021-08-04 10:04:58 +02:00
CONTRIBUTING.md
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README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe is a simple analysis tool to inspect multimedia content.
  • Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.