Build a multi-bitrate HLS ladder in a single ffmpeg pass using
-var_stream_map.
Preferred over adaptiveHls() for anything that needs per-language audio
variants, because the native mechanism handles the stream grouping ffmpeg
needs — the N-output + master_pl_name approach in adaptiveHls cannot.
Build a multi-bitrate HLS ladder in a single ffmpeg pass using
-var_stream_map.Preferred over
adaptiveHls()for anything that needs per-language audio variants, because the native mechanism handles the stream grouping ffmpeg needs — the N-output +master_pl_nameapproach inadaptiveHlscannot.