> 在 2017年10月21日，下午4:13，Dixit, Vishwanath <vdi...@akamai.com> 写道： > > Hi, > > Please find the attached patches which add support to create multiple HLS > variant streams and master playlist. > > Key advantages: > > 1. A single HLS encoder instance can handle multiple variant streams now. > Otherwise, a separate HLS encoder instance was needed for each variant > stream. So, now a single set of HLS parameters can be provided in the command > line for creating multiple variant streams. > 2. Variant streams can be created as muxed AV media segments or separate AV > media segments. Having separate AV media segments helps to re-use a single > audio for multiple video only variant streams. > 3. Creating variant streams in a single hlsenc instance simplifies the > master playlist creation, as one hlsenc plugin handle will have details of > all the variant streams. > > Logic: > Same logic of creating variant streams in DASH encoder plugin has been > implemented here. It appears that there are lot of changes in the first > patch. However, most of the changes are due to movement of HLS context > structure parameters to new variant stream structure. Because of this, in > many places the variable names ‘s’ and ‘hls’ have been replace by ‘vs’. Just > an additional loop in write_header and write_trailer function handles > creation of multiple variant streams. > > Future updates: > Currently master playlist creation patch creates a basic master playlist. I > will be submitting one more patch over this which will handle mapping of > different rendition streams using #EXT-X-MEDIA and audio group id tags. > > Regards, > Vishwanath > <0001-libavformat-hlsenc-creation-of-hls-variant-streams-i.patch><0002-libavformat-hlsenc-creation-of-hls-master-playlist-f.patch>_______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Two patches should be ok, add FATE cases please :) _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
