PMS 1.17.0 - Not hardware decoding some h.264 media with Nvidia GPU on Linux

Plex Media Server Plex Pass Betas
1

This happened with the preview and I posted @ Plex Media Server 1.16.7.1597 (Updated) - New Transcoder Preview

It is also happening with 1.17.0.1709

image

I’ll post updated logs later.

5

@TeknoJunky I’m coping your previous post here, but could you please provide a sample (info here on creating samples) from:
/data/media/movies/Ready Player One (2018)/Ready Player One (2018) Bluray-720p [AC3 5.1][x264].mkv that can reproduce the issue and DM me a link?

I noticed HW failing on h264 DECODING with the following lines

Sep 12, 2019 19:09:08.436 [0x7f51577fe700] DEBUG - TPU: hardware transcoding: using hardware decode accelerator nvdec
Sep 12, 2019 19:09:08.436 [0x7f51577fe700] DEBUG - [Universal] Using local file path instead of URL: /data/media/movies/Ready Player One (2018)/Ready Player One (2018) Bluray-720p [AC3 5.1][x264].mkv
Sep 12, 2019 19:09:08.436 [0x7f51577fe700] DEBUG - TPU: hardware transcoding: zero-copy support present
Sep 12, 2019 19:09:08.436 [0x7f51577fe700] DEBUG - TPU: hardware transcoding: using zero-copy transcoding
Sep 12, 2019 19:09:08.437 [0x7f51577fe700] DEBUG - TPU: hardware transcoding: final decoder: nvdec, final encoder: nvenc
Sep 12, 2019 19:09:08.437 [0x7f51577fe700] DEBUG - Job running: EAE_ROOT='/tmp/pms-e0e1520d-2776-4f6e-96f7-79464b80c296/EasyAudioEncoder' FFMPEG_EXTERNAL_LIBS='/var/lib/plexmediaserver/Library/Application\ Support/Plex\ Media\ Server/Codecs/9742c5a-2492-linux-x86_64/' XDG_CACHE_HOME='/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Cache' XDG_DATA_HOME='/usr/lib/plexmediaserver/Resources' X_PLEX_TOKEN='xxxxxxxxxxxxxxxxxxxx' '/usr/lib/plexmediaserver/Plex Transcoder' '-codec:1' 'h264' '-hwaccel:1' 'nvdec' '-hwaccel_fallback_threshold:1' '10' '-hwaccel_output_format:1' 'cuda' '-codec:0' 'ac3' '-analyzeduration' '20000000' '-probesize' '20000000' '-i' '/data/media/movies/Ready Player One (2018)/Ready Player One (2018) Bluray-720p [AC3 5.1][x264].mkv' '-filter_complex' '[0:1]hwupload[0];[0]scale_cuda=w=1280:h=536:format=nv12[1]' '-filter_complex' '[0:0] aresample=async=1:ocl='\''stereo'\'':osr=48000[2]' '-map' '[1]' '-metadata:s:0' 'language=eng' '-codec:0' 'h264_nvenc' '-b:0' '2526k' '-maxrate:0' '3368k' '-bufsize:0' '6736k' '-forced-idr:0' '1' '-r:0' '23.975999999999999' '-force_key_frames:0' 'expr:gte(t,0+n_forced*5)' '-map' '[2]' '-metadata:s:1' 'language=eng' '-codec:1' 'libopus' '-b:1' '140k' '-segment_format' 'matroska' '-f' 'ssegment' '-individual_header_trailer' '0' '-flags' '+global_header' '-segment_format_options' 'output_ts_offset=10' '-segment_header_filename' 'header' '-segment_time' '5' '-segment_start_number' '0' '-segment_copyts' '1' '-segment_time_delta' '0.0625' '-segment_list' 'http://127.0.0.1:32400/video/:/transcode/session/0831FEC4-11BB-4CDA-8F56-13540C54FA4D/2e650e0a-3243-428f-8f3e-ed78128dad0a/seglist' '-segment_list_type' 'csv' '-segment_list_size' '2147483647' '-segment_list_separate_stream_times' '1' '-segment_list_unfinished' '1' '-max_delay' '5000000' '-avoid_negative_ts' 'disabled' '-map_metadata:g' '-1' '-map_metadata:c' '-1' '-map_chapters' '-1' 'media-%05d.ts' '-start_at_zero' '-copyts' '-vsync' 'cfr' '-y' '-init_hw_device' 'cuda=cuda:/dev/dri/renderD128' '-hwaccel_device' 'cuda' '-filter_hw_device' 'cuda' '-nostats' '-loglevel' 'quiet' '-loglevel_plex' 'error' '-progressurl' 'http://127.0.0.1:32400/video/:/transcode/session/0831FEC4-11BB-4CDA-8F56-13540C54FA4D/2e650e0a-3243-428f-8f3e-ed78128dad0a/progress'

...

Sep 12, 2019 19:09:10.374 [0x7f5154ff9700] ERROR - [Transcoder] [h264 @ 0x26b2d00] decoder->cvdl->cuvidCreateDecoder(&decoder->decoder, params) failed -> CUDA_ERROR_INVALID_VALUE: invalid argument
Sep 12, 2019 19:09:10.374 [0x7f5156ffd700] ERROR - [Transcoder] [h264 @ 0x26b2d00] Failed setup for format cuda: hwaccel initialisation returned error.
S

the server now playing starts out with HW decode, then the HW disappears.

I have confirmed via nvidia-smi that decoder utilization = 0%

HW encoding still seems to work.

HW decoding of x265/hevc still works.

Plex Media Server Logs_2019-09-12_19-09-55.zip (3.4 MB)

proxmox 6/debian 10
nvidia driver 435.21
gtx1650

1 Like
6

ok I will work on the samples, I have at least 2 different movies affected thus far.

in the mean time, here is the media info on them if that provides anything useful

<Media id="358267" duration="8398271" bitrate="8344" width="1280" height="536" aspectRatio="2.35" audioChannels="6" audioCodec="ac3" videoCodec="h264" videoResolution="720" container="mkv" videoFrameRate="24p" videoProfile="high">
<Part accessible="1" exists="1" id="785593" key="/library/parts/785593/1530576000/file.mkv" duration="8398271" file="/data/media/movies/Ready Player One (2018)/Ready Player One (2018) Bluray-720p [AC3 5.1][x264].mkv" size="8761538025" container="mkv" deepAnalysisVersion="4" indexes="sd" requiredBandwidths="23275,21809,21002,19880,18879,17927,15061,11039" videoProfile="high">
<Stream id="1291132" streamType="1" default="1" codec="h264" index="1" bitrate="7704" language="English" languageCode="eng" bitDepth="8" chromaLocation="left" chromaSubsampling="4:2:0" frameRate="23.976" hasScalingMatrix="0" height="536" level="41" profile="high" refFrames="12" requiredBandwidths="22635,21169,20362,19240,18239,17287,14421,10399" scanType="progressive" width="1280" displayTitle="720p (H.264)"/>
<Stream id="1291131" streamType="2" selected="1" default="1" codec="ac3" index="0" channels="6" bitrate="640" language="English" languageCode="eng" audioChannelLayout="5.1(side)" requiredBandwidths="640,640,640,640,640,640,640,640" samplingRate="48000" displayTitle="English (AC3 5.1)"/>
<Stream id="1291133" streamType="3" codec="srt" index="2" bitrate="0" language="Română" languageCode="rum" requiredBandwidths="1,1,1,1,1,1,1,1" displayTitle="Română (SRT)"/>
<Stream id="1295125" key="/library/streams/1295125" streamType="3" codec="srt" format="srt" displayTitle="Unknown (SRT External)"/>
</Part>

and

<Media id="829152" duration="7665699" bitrate="7273" width="1280" height="544" aspectRatio="2.35" audioChannels="6" audioCodec="dca" videoCodec="h264" videoResolution="720" container="mkv" videoFrameRate="24p" audioProfile="dts" videoProfile="high">
<Part accessible="1" exists="1" id="857799" key="/library/parts/857799/1015372800/file.mkv" duration="7665699" file="/data/media/movies/Cape Fear (1991)/Cape Fear (1991) Bluray-720p [DTS 5.1][x264].mkv" size="6971823246" audioProfile="dts" container="mkv" deepAnalysisVersion="4" indexes="sd" requiredBandwidths="16331,14794,11650,9172,8529,8529,8529,8529" videoProfile="high">
<Stream id="1485613" streamType="1" codec="h264" index="0" bitrate="5764" language="English" languageCode="eng" bitDepth="8" chromaLocation="left" chromaSubsampling="4:2:0" frameRate="23.976" hasScalingMatrix="0" height="544" level="41" profile="high" refFrames="12" requiredBandwidths="14821,13284,10140,7663,7032,7032,7032,7032" scanType="progressive" width="1280" displayTitle="720p (H.264)"/>
<Stream id="1485614" streamType="2" selected="1" default="1" codec="dca" index="1" channels="6" bitrate="1509" audioChannelLayout="5.1(side)" bitDepth="24" profile="dts" requiredBandwidths="1509,1509,1509,1509,1509,1509,1509,1509" samplingRate="48000" displayTitle="Unknown (DTS 5.1)"/>
</Part>
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logs and sample links sent PM

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