[FFmpeg-user] multiple HLS outputs with different stream maps
Viorel Dehelean
synologic at gmail.com
Mon Jul 22 12:44:43 EEST 2019
For some strange reason, when using TEE with HLS output, in the master
playlist, the codec information is missing.
Anybody has any idea why ?
I am using git version from 2 days ago ... ffmpeg version
N-94345-g1123331f59
Thanks
On Sat, Jul 20, 2019 at 9:38 PM Viorel Dehelean <synologic at gmail.com> wrote:
> So the final solution for this use case was to use:
>
> ./ffmpeg -ignore_unknown -async 1 -probesize 1M -analyzeduration 1000000 \
> -i "udp://<udp stream>:1234?fifo_size=5000000&overrun_nonfatal=1"
> -threads 0 -fflags +genpts \
> -filter_complex
> "[0:v]yadif=0:-1:0[deinterlaced];[deinterlaced]split=4[v1][v2][v3][v4];[v1]copy[v1out];[v2]scale=w=1280:h=720:force_original_aspect_ratio=disable[v2scale];[v2scale]pad=width=1280:height=720:x=(ow-iw)/2:y=0:color=black[v2out];[v3]scale=w=800:h=450:force_original_aspect_ratio=disable[v3scale];[v3scale]pad=width=800:height=450:x=(ow-iw)/2:y=0:color=black[v3out];[v4]scale=w=480:h=270:force_original_aspect_ratio=disable[v4scale];[v4scale]pad=width=480:height=270:x=(ow-iw)/2:y=0:color=black[v4out]"
> \
> -map [v1out] -x264opts:v:0 keyint=15:min-keyint=15:no-scenecut
> -flags:v:0 +cgop -c:v:0 libx264 -profile:v:0 high -level 4.0 -preset
> superfast -b:v:0 8000k -maxrate:v:0 10000k -minrate:v:0 4000k \
> -map [v2out] -x264opts:v:1 keyint=15:min-keyint=15:no-scenecut
> -flags:v:1 +cgop -c:v:1 libx264 -profile:v:1 high -level 4.0 -preset
> superfast -b:v:1 3000k -maxrate:v:1 3000k -minrate:v:1 1350k \
> -map [v3out] -x264opts:v:2 keyint=15:min-keyint=15:no-scenecut
> -flags:v:2 +cgop -c:v:2 libx264 -profile:v:2 main -level 3.1 -preset
> superfast -b:v:2 900k -maxrate:v:2 900k -minrate:v:2 450k \
> -map [v4out] -x264opts:v:3 keyint=15:min-keyint=15:no-scenecut
> -flags:v:3 +cgop -c:v:3 libx264 -profile:v:3 baseline -level 3.0 -preset
> superfast -b:v:3 450k -maxrate:v:3 450k -minrate:v:3 150k \
> -map a:0 -c:a:0 libfdk_aac -b:a:0 128k -metadata:s:a:0 language=ron \
> -map a:0 -c:a:1 libfdk_aac -b:a:1 128k -metadata:s:a:1 language=ron \
> -map a:0 -c:a:2 libfdk_aac -b:a:2 128k -metadata:s:a:2 language=ron \
> -map a:0 -c:a:3 libfdk_aac -b:a:3 128k -metadata:s:a:3 language=ron \
>
> "[select=\'v:0,v:1,v:2,v:3,a:0\':f=hls:onfail=ignore:var_stream_map=\'v:0,agroup:audio
> v:1,agroup:audio v:2,agroup:audio v:3,agroup:audio
> a:0,agroup:audio,language:ron,default:yes\':use_localtime=1:hls_allow_cache=0:hls_flags=discont_start+delete_segments+omit_endlist+second_level_segment_index+second_level_segment_size+second_level_segment_duration+program_date_time:\
>
> hls_start_number_source=datetime:hls_time=6:hls_list_size=10:hls_segment_filename=/origin/35f4574f4aed42d083de1087851f8712/%v_stream_%%04d_%%08s_%%013t.ts:master_pl_name=playlist.m3u8]/origin/35f4574f4aed42d083de1087851f8712/variant_%v_manifest.m3u8|\
>
> [select=\'v:0,v:1,v:2,v:3,a:0,a:1,a:2,a:3\':f=hls:var_stream_map=\'v:0,a:0
> v:1,a:1 v:2,a:2
> v:3,a:3\':use_localtime=1:hls_allow_cache=0:hls_flags=discont_start+temp_file+delete_segments+omit_endlist+second_level_segment_index+second_level_segment_size+second_level_segment_duration+program_date_time:\
>
> hls_start_number_source=datetime:hls_time=6:hls_list_size=10:hls_segment_filename=/origin/35f4574f4aed42d083de1087851f8712/mux/%v_stream2_%Y%m%d%H%M%S_%%04d_%%08s_%%013t.ts:master_pl_name=playlist2.m3u8]/origin/35f4574f4aed42d083de1087851f8712/mux/variant2_%v_manifest.m3u8"
>
> by adding select to the tee output, the first hls output is satisfied, and
> the second just uses audio streams 0 thru 3
>
> Hope it helps somebody else too
>
> Thanks,
> Viorel
>
> On Sat, Jul 20, 2019 at 12:20 AM Viorel Dehelean <synologic at gmail.com>
> wrote:
>
>> Answering to myself, in my previous attempt, the second hls output
>> expects a separate set of transcode process, hence the unable to map stream
>> error.
>>
>> The better solution would be to use tee to send to multiple outputs,
>> however the latest git seems to be suffering from this
>> https://trac.ffmpeg.org/ticket/7907
>>
>> For my usecase, i need two ABR outputs, one with separate audio
>> renditions (for the test case, just one) and one output with embedded audio.
>> The problem i am facing now with the latest git is as follows, with one
>> audio track encode process, the separate audio rendition output works well,
>> however the second ABR which needs to embed audio onto 4 video variants,
>> crashes with:
>>
>> [hls @ 0x55f35ecd1000] Same elementary stream found more than once in two
>> different variant definitions #0 and #1
>>
>> which seems to indicate that it does not like to use the same audio
>> stream into multiple variants, which led me to actually create 3 more audio
>> encodes, as audio encoding is not that expensive CPU wise, but now the
>> separate audio rendition output crashes with
>>
>> [hls @ 0x55b804de5300] Unable to find mapping variant stream
>>
>> which seems to indicate that the muxer has found some streams that are
>> not used in that output. It would be nice to not crash here :)
>>
>> I will post a comment to 7907, however, maybe somebody has a better idea.
>>
>> Here's what i tried (with 4 audio encodes)
>>
>> ./ffmpeg -ignore_unknown -async 1 -probesize 1M -analyzeduration 1000000 \
>> -i "udp://<udp group>:1234?fifo_size=5000000&overrun_nonfatal=1"
>> -threads 0 -fflags +genpts \
>> -filter_complex
>> "[0:v]yadif=0:-1:0[deinterlaced];[deinterlaced]split=4[v1][v2][v3][v4];[v1]copy[v1out];[v2]scale=w=1280:h=720:force_original_aspect_ratio=disable[v2scale];[v2scale]pad=width=1280:height=720:x=(ow-iw)/2:y=0:color=black[v2out];[v3]scale=w=800:h=450:force_original_aspect_ratio=disable[v3scale];[v3scale]pad=width=800:height=450:x=(ow-iw)/2:y=0:color=black[v3out];[v4]scale=w=480:h=270:force_original_aspect_ratio=disable[v4scale];[v4scale]pad=width=480:height=270:x=(ow-iw)/2:y=0:color=black[v4out]"
>> \
>> -map [v1out] -x264opts:v:0 keyint=15:min-keyint=15:no-scenecut
>> -flags:v:0 +cgop -c:v:0 libx264 -profile:v:0 high -level 4.0 -preset
>> superfast -b:v:0 8000k -maxrate:v:0 10000k -minrate:v:0 4000k \
>> -map [v2out] -x264opts:v:1 keyint=15:min-keyint=15:no-scenecut
>> -flags:v:1 +cgop -c:v:1 libx264 -profile:v:1 high -level 4.0 -preset
>> superfast -b:v:1 3000k -maxrate:v:1 3000k -minrate:v:1 1350k \
>> -map [v3out] -x264opts:v:2 keyint=15:min-keyint=15:no-scenecut
>> -flags:v:2 +cgop -c:v:2 libx264 -profile:v:2 main -level 3.1 -preset
>> superfast -b:v:2 900k -maxrate:v:2 900k -minrate:v:2 450k \
>> -map [v4out] -x264opts:v:3 keyint=15:min-keyint=15:no-scenecut
>> -flags:v:3 +cgop -c:v:3 libx264 -profile:v:3 baseline -level 3.0 -preset
>> superfast -b:v:3 450k -maxrate:v:3 450k -minrate:v:3 150k \
>> -map a:0 -c:a:0 libfdk_aac -b:a:0 128k -metadata:s:a:0 language=ron \
>> -map a:0 -c:a:1 libfdk_aac -b:a:1 128k -metadata:s:a:1 language=ron \
>> -map a:0 -c:a:2 libfdk_aac -b:a:2 128k -metadata:s:a:2 language=ron \
>> -map a:0 -c:a:3 libfdk_aac -b:a:3 128k -metadata:s:a:3 language=ron \
>> "[f=hls:onfail=ignore:var_stream_map=\'v:0,agroup:audio
>> v:1,agroup:audio v:2,agroup:audio v:3,agroup:audio
>> a:0,agroup:audio,language:ron,default:yes\':use_localtime=1:hls_allow_cache=0:hls_flags=discont_start+delete_segments+omit_endlist+second_level_segment_index+second_level_segment_size+second_level_segment_duration+program_date_time:\
>>
>> hls_start_number_source=datetime:hls_time=6:hls_list_size=10:hls_segment_filename=/origin/35f4574f4aed42d083de1087851f8712/%v_stream_%%04d_%%08s_%%013t.ts:master_pl_name=playlist.m3u8]/origin/35f4574f4aed42d083de1087851f8712/variant_%v_manifest.m3u8|\
>> [f=hls:var_stream_map=\'v:0,a:0 v:1,a:1 v:2,a:2
>> v:3,a:3\':use_localtime=1:hls_allow_cache=0:hls_flags=discont_start+temp_file+delete_segments+omit_endlist+second_level_segment_index+second_level_segment_size+second_level_segment_duration+program_date_time:\
>>
>> hls_start_number_source=datetime:hls_time=6:hls_list_size=10:hls_segment_filename=/origin/35f4574f4aed42d083de1087851f8712/mux/%v_stream2_%Y%m%d%H%M%S_%%04d_%%08s_%%013t.ts:master_pl_name=playlist2.m3u8]/origin/35f4574f4aed42d083de1087851f8712/mux/variant2_%v_manifest.m3u8"
>>
>> Thanks,
>> Viorel
>>
>>
>> On Fri, Jul 19, 2019 at 9:50 PM Viorel Dehelean <synologic at gmail.com>
>> wrote:
>>
>>> Slight different command line, i'm trying to produce 2 separate abr
>>> streams with different stream map structures, as well as doing transcoding
>>> but that should not be of any circumstance:
>>>
>>> ./ffmpeg -ignore_unknown -async 1 -probesize 1M -analyzeduration 1000000
>>> \
>>> -i "udp://<udp group>:1234?fifo_size=5000000&overrun_nonfatal=1"
>>> -threads 0 -fflags +genpts \
>>> -filter_complex
>>> "[0:v]yadif=0:-1:0[deinterlaced];[deinterlaced]split=4[v1][v2][v3][v4];[v1]copy[v1out];[v2]scale=w=1280:h=720:force_original_aspect_ratio=disable[v2scale];[v2scale]pad=width=1280:height=720:x=(ow-iw)/2:y=0:color=black[v2out];[v3]scale=w=800:h=450:force_original_aspect_ratio=disable[v3scale];[v3scale]pad=width=800:height=450:x=(ow-iw)/2:y=0:color=black[v3out];[v4]scale=w=480:h=270:force_original_aspect_ratio=disable[v4scale];[v4scale]pad=width=480:height=270:x=(ow-iw)/2:y=0:color=black[v4out]"
>>> \
>>> -map [v1out] -x264opts:v:0 keyint=15:min-keyint=15:no-scenecut
>>> -flags:v:0 +cgop -c:v:0 libx264 -profile:v:0 high -level 4.0 -preset
>>> superfast -b:v:0 8000k -maxrate:v:0 10000k -minrate:v:0 4000k \
>>> -map [v2out] -x264opts:v:1 keyint=15:min-keyint=15:no-scenecut
>>> -flags:v:1 +cgop -c:v:1 libx264 -profile:v:1 high -level 4.0 -preset
>>> superfast -b:v:1 3000k -maxrate:v:1 3000k -minrate:v:1 1350k \
>>> -map [v3out] -x264opts:v:2 keyint=15:min-keyint=15:no-scenecut
>>> -flags:v:2 +cgop -c:v:2 libx264 -profile:v:2 main -level 3.1 -preset
>>> superfast -b:v:2 900k -maxrate:v:2 900k -minrate:v:2 450k \
>>> -map [v4out] -x264opts:v:3 keyint=15:min-keyint=15:no-scenecut
>>> -flags:v:3 +cgop -c:v:3 libx264 -profile:v:3 baseline -level 3.0 -preset
>>> superfast -b:v:3 450k -maxrate:v:3 450k -minrate:v:3 150k \
>>> -map a:0 -c:a:0 libfdk_aac -b:a:0 128k -metadata:s:a:0 language=ron \
>>> -f hls \
>>> -var_stream_map "v:0,agroup:audio v:1,agroup:audio v:2,agroup:audio
>>> v:3,agroup:audio a:0,agroup:audio,name:Romanian,language:ron,isdefault:yes"
>>> \
>>> -use_localtime 1 -hls_allow_cache 0 -hls_flags
>>> delete_segments+omit_endlist+second_level_segment_index+second_level_segment_size+second_level_segment_duration+program_date_time
>>> \
>>> -hls_start_number_source datetime -hls_time 6 -hls_list_size 10
>>> -hls_segment_filename
>>> /origin/35f4574f4aed42d083de1087851f8712/%v_stream_%Y%m%d%H%M%S_%%04d_%%08s_%%013t.ts
>>> \
>>> -master_pl_name playlist.m3u8
>>> /origin/35f4574f4aed42d083de1087851f8712/variant_%v_manifest.m3u8 \
>>> -var_stream_map "v:0,a:0 v:1,a:0 v:2,a:0 v:3,a:0" \
>>> -use_localtime 1 -hls_allow_cache 0 -hls_flags
>>> delete_segments+omit_endlist+second_level_segment_index+second_level_segment_size+second_level_segment_duration+program_date_time
>>> \
>>> -hls_start_number_source datetime -hls_time 6 -hls_list_size 10
>>> -hls_segment_filename
>>> /origin/35f4574f4aed42d083de1087851f8712/mux/%v_stream2_%Y%m%d%H%M%S_%%04d_%%08s_%%013t.ts
>>> \
>>> -master_pl_name playlist2.m3u8
>>> /origin/35f4574f4aed42d083de1087851f8712/mux/variant2_%v_manifest.m3u8
>>>
>>>
>>> and i'm getting:
>>>
>>>
>>> [hls @ 0x561859fcf900] Unable to map stream at v:1
>>> [hls @ 0x561859fcf900] Variant stream info update failed with status
>>> ffffffea
>>> Could not write header for output file #1 (incorrect codec parameters
>>> ?): Invalid argument
>>> Error initializing output stream 1:0 --
>>>
>>> On Fri, Jul 19, 2019 at 5:34 PM andrei ka <andrei.k.gml at gmail.com>
>>> wrote:
>>>
>>>> oups, i had extra space in command line, actually it works fine with 2nd
>>>> stream_map
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