you don't need groups here, just make a master index.m3u8 with : index.m3u8 : #================ #EXTM3U #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=128000 index_low.m3u8 #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH= 256000 index_high.m3u8 #================
and ffmpeg -re -i aac_file -vn -filter_complex "[0:a]volume=6dB,asetrate=sample_rate=48000,split=2[src1][src2] \ -map [src1] -c:a fdk_aac -b:a:0 128k \ -flags -global_header -hls_segment_filename index_ld_%05d.ts -timeout 2 -reconnect_delay_max 1 -f hls -hls_time 4 -hls_list_size 8 -hls_flags delete_segments+append_list+omit_endlist+discont_start+split_by_time -hls_allow_cache 0 -start_number 1 'index_low.m3u8' \ -map [src2] -c:a fdk_aac -b:a:1 256k \ -flags -global_header -hls_segment_filename index_sd_%05d.ts -timeout 2 -reconnect_delay_max 1 -f hls -hls_time 4 -hls_list_size 8 -hls_flags delete_segments+append_list+omit_endlist+discont_start+split_by_time -hls_allow_cache 0 -start_number 1 'index_high.m3u8' i didn't try it, but i do video transcoding in this way, so you may need to edit this cmdline a bit.... &rei >ffmpeg -re -i input.aac -b:a:0 128k -af volume=6dB -ar 48000 -hls_time 20 -vn -hls_list_size 0 -b:a:1 256k -af volume=6dB -ar 48000 -hls_time 20 -vn >-hls_list_size 0 -map 0:a -map 0:a -f hls -var_stream_map "a:0,agroup:aud_low a:1,agroup:aud_high" -master_pl_name index.m3u8 index_%v.m3u8 On Mon, Dec 2, 2019 at 1:37 PM Ashish Jha <[email protected]> wrote: > I want to encode an AAC formatted audio file into multi bitrate HLS using > ffmpeg: > > > fmpeg -re -i input.aac -b:a:0 128k -af volume=6dB -ar 48000 -hls_time 20 > -vn -hls_list_size 0 -b:a:1 256k -af volume=6dB -ar 48000 -hls_time 20 -vn > -hls_list_size 0 -map 0:a -map 0:a -f hls -var_stream_map > "a:0,agroup:aud_low a:1,agroup:aud_high" -master_pl_name index.m3u8 > index_%v.m3u8 > > This lets me get 1 master manifest and 2 child manifests, which are > playable on android. However, this does not play on desktop using chrome. I > found these 2 lines in master manifest that seem to cause the issue. When > manually removed, it plays perfectly. > > > > #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_aud_low",NAME="audio_0",DEFAULT=YES,URI="master0.m3u8" > > #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_aud_high",NAME="audio_1",DEFAULT=YES,URI="master1.m3u8" > > Is there a way to encode audio in multibitrate that avoids this issue? > > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
