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Steven Liu 6a25bb5aa4 avformat/hlsenc: add var_stream_map DEFAULT field status parameter
use a:0,agroup:aud_low,default:Yes a:1,agroup:aud_low,
    a:2,agroup:aud_high,default:Yes a:3, agroup:aud_high,
    v:0,agroup:aud_low v:1,agroup:aud_high
    create master m3u8 list.

result:
EXTM3U
EXT-X-VERSION:3
EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_aud_low",NAME="audio_0",DEFAULT=YES,URI="out_0.m3u8"
EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_aud_low",NAME="audio_1",DEFAULT=NO,URI="out_1.m3u8"
EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_aud_high",NAME="audio_2",DEFAULT=YES,URI="out_2.m3u8"
EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_aud_high",NAME="audio_3",DEFAULT=NO,URI="out_3.m3u8"
EXT-X-STREAM-INF:BANDWIDTH=1170400,RESOLUTION=640x480,CODECS="avc1.64001e,mp4a.40.2",AUDIO="group_aud_low"
out_4.m3u8
EXT-X-STREAM-INF:BANDWIDTH=3440800,RESOLUTION=640x480,CODECS="avc1.64001e,mp4a.40.2",AUDIO="group_aud_high"
out_5.m3u8

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
2019-01-31 16:17:02 +08:00
compat additional math.h functions for djgpp 2018-11-28 22:16:07 +11:00
doc avformat/hlsenc: add var_stream_map DEFAULT field status parameter 2019-01-31 16:17:02 +08:00
ffbuild Merge commit '17b6c7efb471e8ff1b8a7271f6531ba1d52bf69c' 2017-11-12 01:02:02 -03:00
fftools ffmpeg_opt: Print a warning if more than one -vf/-af option was specified. 2019-01-15 00:27:05 +01:00
libavcodec avcodec/rasc: Move ff_get_buffer() after frame checks 2019-01-31 00:24:38 +01:00
libavdevice libavdevice/gdigrab: fix HIDPI support for mouse positioning 2019-01-30 21:55:22 +01:00
libavfilter avfilter/buffersrc: print relevant info when skipping filter reinit 2019-01-27 18:48:36 +05:30
libavformat avformat/hlsenc: add var_stream_map DEFAULT field status parameter 2019-01-31 16:17:02 +08:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil avcodec/mips: [loongson] optimize put_hevc_qpel_hv_8 with mmi. 2019-01-22 00:46:36 +01:00
libpostproc postproc/postprocess_template: remove FF_REG_sp from clobber list 2018-12-22 17:41:44 +01:00
libswresample Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
libswscale swscale/yuv2rgb: Return a more specific error code from ff_yuv2rgb_c_init_tables() 2019-01-01 21:11:47 +01:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests avcodec: Add discard_sample_percentage 2019-01-28 01:09:38 +01:00
tools tools/target_dec_fate.list: add entries upto 1214 2019-01-28 01:09:38 +01:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore Remove the ffserver program 2018-01-06 18:31:37 +00:00
.travis.yml Merge commit '4809781586d1c956005f72946a2aab5915eab350' 2017-10-28 15:08:31 -03:00
Changelog avcodec: add ARBC decoder 2019-01-27 13:53:29 +01:00
configure libavfilter: add transpose_vaapi filter 2019-01-23 23:29:40 +00:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file. 2012-02-09 12:26:45 +01:00
COPYING.LGPLv3
CREDITS CREDITS: redirect to Git log, remove current outdated content 2013-01-31 18:02:52 +01:00
INSTALL.md INSTALL: add markdown syntax 2014-05-28 22:38:38 +02:00
LICENSE.md Merge commit '4fef648d10bf3bcfd4b8fa5755c1128966a2427c' 2017-03-15 22:07:47 +01:00
MAINTAINERS MAINTAINERS: add AVS2 section 2019-01-28 01:09:38 +01:00
Makefile Makefile: Allow "make clean" to delete compat/atomics/pthread/stdatomic.o 2018-12-28 14:04:10 +01:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE RELEASE: bump to 4.1.git 2018-11-02 00:55:49 +01:00

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.