AV1 Codec

Gerd H

Hi !
Is there a plan to add transcode for AV1 Codec ?
my gpu (a380) does it really good with jellyfin and is nice for low bandwidth connections..

Ciao Gerd

ukn_unknown

You can use spawn with ffmpeg if you want to transcode in AV1 (using hardware).

sepietras

Can I ask for an example ffmpeg line with AV1 transcode?

Gerd H

would be nice ...

ciao gerd

ukn_unknown

I don't have a video card with ARC ... so I can't test, but based in some search I can recommend reading: https://forum.level1techs.com/t/ffmpeg-av1-encoding-using-intel-arc-gpu-tips/205120/2
When I experimented with atom CPU, I used the following command:
/usr/bin/ffmpeg -hide_banner -hwaccel vaapi -hwaccel_output_format vaapi -i pipe:0 -map 0:v -vf 'deinterlace_vaapi' -c:v h264_vaapi -preset veryslow -profile:v high -qp:v 28 -map 0:a? -c:a aac -b:a 64k -map 0:s? -c:s copy -fflags +nobuffer+discardcorrupt+genpts+flush_packets -avoid_negative_ts disabled -f mpegts pipe:1
You have to combine those two.
I starting point is:
/usr/bin/ffmpeg -i pipe:0 -init_hw_device vaapi=va:/dev/dri/renderD128 -c:v av1_qsv -preset veryslow -extbrc 1 -look_ahead_depth 40 -b:v 1M -bufsize 2M -rc_init_occupancy 512K -low_power 0 -adaptive_i 1 -adaptive_b 1 -b_strategy 1 -bf 7 -map 0:a? -c:a aac -b:a 64k -map 0:s? -c:s copy -fflags +nobuffer+discardcorrupt+genpts+flush_packets -avoid_negative_ts disabled -f mpegts pipe:1

Gerd H

Hi !

I tried you suggestion... i had a picture but vlc say => HEVC Code...

Ciao Gerd

ukn_unknown

I am tempted to say you made a mistake.
Try the command on a terminal and replace pipe:0 with some Input file and pipe:1 with some other file to write to ... and test the command.

Gerd H

Hi !

Its was a config error.... (user had no right to use this profile) but i have a general problem
2025-01-29 21:59:15.873 spawn: Invalid device specification "vaapi=va:/dev/dri/renderD128": named device already exists

2025-01-29 21:59:15.873 spawn: Failed to set value 'vaapi=va:/dev/dri/renderD128' for option 'init_hw_device': Invalid argument
2025-01-29 21:59:15.873 spawn: Error parsing global options: Invalid argument
the command
ffmpeg -fflags +nobuffer+discardcorrupt+genpts+flush_packets -init_hw_device vaapi=va:,driver=iHD,kernel_driver=i915 -init_hw_device qsv=qs@va -filter_hw_device qs -hwaccel qsv -hwaccel_output_format qsv -extra_hw_frames 40 -i pipe:0 /usr/lib/jellyfin-ffmpeg/ffmpeg -i pipe:0 -init_hw_device vaapi=va:/dev/dri/renderD128 -c:v av1_qsv -preset veryslow -extbrc 1 -look_ahead_depth 40 -b:v 1M -bufsize 2M -rc_init_occupancy 512K -low_power 0 -adaptive_i 1 -adaptive_b 1 -b_strategy 1 -bf 7 -map 0:a? -c:a aac -b:a 64k -map 0:s? -c:s copy -fflags +nobuffer+discardcorrupt+genpts+flush_packets -avoid_negative_ts disabled -f mpegts pipe:1

Ciao Gerd

ukn_unknown

your command is wrong ... is like you have commands one after another.
probably you only need:
/usr/lib/jellyfin-ffmpeg/ffmpeg -i pipe:0 -init_hw_device vaapi=va:/dev/dri/renderD128 -c:v av1_qsv -preset veryslow -extbrc 1 -look_ahead_depth 40 -b:v 1M -bufsize 2M -rc_init_occupancy 512K -low_power 0 -adaptive_i 1 -adaptive_b 1 -b_strategy 1 -bf 7 -map 0:a? -c:a aac -b:a 64k -map 0:s? -c:s copy -fflags +nobuffer+discardcorrupt+genpts+flush_packets -avoid_negative_ts disabled -f mpegts pipe:1

Gerd H

Hi !
i have only sound it seems the video stream is not catched with the script
2025-02-06 15:31:35.373 spawn: Duration: N/A, start: 36880.859711, bitrate: N/A
2025-02-06 15:31:35.373 spawn: Program 1
2025-02-06 15:31:35.373 spawn: Metadata:
2025-02-06 15:31:35.373 spawn: service_name : Das Erste HD
2025-02-06 15:31:35.373 spawn: service_provider: ARD
2025-02-06 15:31:35.373 spawn: Stream #0:0[0x13ed]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn
2025-02-06 15:31:35.373 spawn: Stream #0:10x13ee: Audio: mp2 (mp3float) ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 256 kb/s
2025-02-06 15:31:35.373 spawn: Stream #0:20x13ef: Audio: mp2 (mp3float) ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 256 kb/s (visual impaired) (descriptions)
2025-02-06 15:31:35.373 spawn: Stream #0:30x13f3: Audio: mp2 (mp3float) ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 192 kb/s (hearing impaired)
2025-02-06 15:31:35.373 spawn: Stream #0:40x13f0: Subtitle: dvb_teletext (libzvbi_teletextdec) ([6][0][0][0] / 0x0006), 492x250
2025-02-06 15:31:35.373 spawn: Stream #0:50x13f2: Audio: ac3 ([6][0][0][0] / 0x0006), 48000 Hz, stereo, fltp, 448 kb/s
2025-02-06 15:31:35.373 spawn: Stream #0:6[0x492]: Unknown: none ([5][0][0][0] / 0x0005)
2025-02-06 15:31:35.373 spawn: Stream #0:70x13f1: Subtitle: dvb_subtitle (dvbsub) ([6][0][0][0] / 0x0006) (hearing impaired)
2025-02-06 15:31:35.373 spawn: No Program
2025-02-06 15:31:35.373 spawn: Stream #0:8[0x12]: Data: epg
2025-02-06 15:31:35.375 spawn: [out#0/mpegts @ 0x5d34b40c1d40] Codec AVOption rc_init_occupancy (number of bits which should be loaded into the rc buffer before decoding starts) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
2025-02-06 15:31:35.375 spawn: [out#0/mpegts @ 0x5d34b40c1d40] Codec AVOption bf (B Picture Pattern) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
2025-02-06 15:31:35.375 spawn: Stream mapping:
2025-02-06 15:31:35.375 spawn: Stream #0:1 -> #0:0 (mp2 (native) -> aac (native))
2025-02-06 15:31:35.375 spawn: Stream #0:2 -> #0:1 (mp2 (native) -> aac (native))
2025-02-06 15:31:35.375 spawn: Stream #0:3 -> #0:2 (mp2 (native) -> aac (native))
2025-02-06 15:31:35.375 spawn: Stream #0:5 -> #0:3 (ac3 (native) -> aac (native))
2025-02-06 15:31:35.375 spawn: Stream #0:4 -> #0:4 (copy)
2025-02-06 15:31:35.375 spawn: Stream #0:7 -> #0:5 (copy)
2025-02-06 15:31:35.377 spawn: [mpegts @ 0x5d34b4197b00] frame size not set
2025-02-06 15:31:35.377 spawn: Output #0, mpegts, to 'pipe:1':
2025-02-06 15:31:35.377 spawn: Metadata:
2025-02-06 15:31:35.377 spawn: encoder : Lavf61.1.100
2025-02-06 15:31:35.377 spawn: Stream #0:0(deu): Audio: aac (LC), 48000 Hz, stereo, fltp, 64 kb/s (default)
2025-02-06 15:31:35.377 spawn: Metadata:
2025-02-06 15:31:35.377 spawn: encoder : Lavc61.3.100 aac
2025-02-06 15:31:35.377 spawn: Stream #0:1(deu): Audio: aac (LC), 48000 Hz, stereo, fltp, 64 kb/s (visual impaired) (descriptions)
2025-02-06 15:31:35.377 spawn: Metadata:
2025-02-06 15:31:35.377 spawn: encoder : Lavc61.3.100 aac
2025-02-06 15:31:35.377 spawn: Stream #0:2(deu): Audio: aac (LC), 48000 Hz, stereo, fltp, 64 kb/s (hearing impaired)
2025-02-06 15:31:35.377 spawn: Metadata:
2025-02-06 15:31:35.377 spawn: encoder : Lavc61.3.100 aac
2025-02-06 15:31:35.377 spawn: Stream #0:3(deu): Audio: aac (LC), 48000 Hz, stereo, fltp, 64 kb/s
2025-02-06 15:31:35.377 spawn: Metadata:
2025-02-06 15:31:35.377 spawn: encoder : Lavc61.3.100 aac
2025-02-06 15:31:35.377 spawn: Stream #0:4(deu): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006), 492x250 (default)
2025-02-06 15:31:35.377 spawn: Stream #0:5(deu): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) (hearing impaired)
2025-02-06 15:31:35.876 spawn: size= 320KiB time=00:00:04.67 bitrate= 560.3kbits/s speed=9.35x

i have a command for converting files to av1 which is working but i was not able to adapt it to tvh common
/usr/lib/jellyfin-ffmpeg/ffmpeg -fflags +nobuffer+discardcorrupt+genpts+flush_packets -init_hw_device vaapi=va:,driver=iHD,kernel_driver=i915 -init_hw_device qsv=qs@va -filter_hw_device qs -hwaccel qsv -hwaccel_output_format qsv -extra_hw_frames 40 -i $f -map 0:v -c:v av1_qsv -preset veryslow -extbrc 1 -low_delay_brc 1 -look_ahead_depth 40 -b:v 1M -bufsize 2M -rc_init_occupancy 512K -adaptive_i 1 -adaptive_b 1 -b_strategy 1 -bf 7 -map 0:a? -c:a copy -map 0:s? -c:s copy -map 0:t? -max_muxing_queue_size 2048 -max_interleave_delta 0 -avoid_negative_ts disabled done/$f
($f is the filename)

But why is AV1 not implemented like x265/hevc for vaapi .... my card spupports it so...

Ciao Gerd

ukn_unknown

From what I know location of the parameters for ffmpeg matters ... try to keep the recommended order.
Maybe you should start with something very simple and add parameters in small chunks.
Can you confirm this command (used by me sometime a go) works:
/usr/lib/jellyfin-ffmpeg/ffmpeg -hide_banner -hwaccel vaapi -hwaccel_output_format vaapi -i pipe:0 -map 0:v -vf 'deinterlace_vaapi' -c:v h264_vaapi -preset veryslow -profile:v high -qp:v 28 -map 0:a? -c:a aac -b:a 64k -map 0:s? -c:s copy -fflags +nobuffer+discardcorrupt+genpts+flush_packets -avoid_negative_ts disabled -f mpegts pipe:1
In theory you should have also av1_vaapi codec.