Paweł K. Posted April 4, 2018 Posted April 4, 2018 I'm trying to figure out how to configure ffmpegprefs.ini to use GPU of nvidia card to transcode stream I've modify ffmpegprefs.ini according to wiki HWAccelIntro, unfortunately streaming not working As a client I'm using Kodi 17,3 [TS HD 3600 kbit] Cmd=-analyzeduration {analyzeduration} {offset} {realtime} -i "{infile}" -f mpegts -pat_period 0.2 -hwaccel cuvid -c:v h264_cuvid -bufsize 6400k -maxrate 3200k -crf 20 -g 50 {framerate} -map 0:v:0 -map 0:a:0 -vf "yadif=0:-1:1, scale={scalex}:{scaley}" -preset {vpreset} -tune film -vprofile main -level 30 -acodec libmp3lame -ab 128k -ar 44100 -ac 2 -async 1 -y "{outfile}" maxWidth=1280 maxHeight=720 MimeType=video/mpeg Ext=.ts Delay=2000 Anyone have idea how to modify ffmpegprefs.ini to use GPU to transcoding ? Quote
feedzapper Posted May 11, 2018 Posted May 11, 2018 Don't use the -hwaccel option ! Use the -c:v h264_nvenc codec for NVIDIA GPU encoding ... The command line syntax for the codec are as follows : Encoder h264_nvenc [NVIDIA NVENC H.264 encoder]: General capabilities: delay Threading capabilities: none Supported pixel formats: yuv420p nv12 p010le yuv444p yuv444p16le bgr0 rgb0 cuda d3d11 h264_nvenc AVOptions: -preset <int> E..V.... Set the encoding preset (from 0 to 11) (default medium) default E..V.... slow E..V.... hq 2 passes medium E..V.... hq 1 pass fast E..V.... hp 1 pass hp E..V.... hq E..V.... bd E..V.... ll E..V.... low latency llhq E..V.... low latency hq llhp E..V.... low latency hp lossless E..V.... losslesshp E..V.... -profile <int> E..V.... Set the encoding profile (from 0 to 3) (default main) baseline E..V.... main E..V.... high E..V.... high444p E..V.... -level <int> E..V.... Set the encoding level restriction (from 0 to 51) (default auto) auto E..V.... 1 E..V.... 1.0 E..V.... 1b E..V.... 1.0b E..V.... 1.1 E..V.... 1.2 E..V.... 1.3 E..V.... 2 E..V.... 2.0 E..V.... 2.1 E..V.... 2.2 E..V.... 3 E..V.... 3.0 E..V.... 3.1 E..V.... 3.2 E..V.... 4 E..V.... 4.0 E..V.... 4.1 E..V.... 4.2 E..V.... 5 E..V.... 5.0 E..V.... 5.1 E..V.... -rc <int> E..V.... Override the preset rate-control (from -1 to INT_MAX) (default -1) constqp E..V.... Constant QP mode vbr E..V.... Variable bitrate mode cbr E..V.... Constant bitrate mode vbr_minqp E..V.... Variable bitrate mode with MinQP (deprecated) ll_2pass_quality E..V.... Multi-pass optimized for image quality (deprecated) ll_2pass_size E..V.... Multi-pass optimized for constant frame size (deprecated) vbr_2pass E..V.... Multi-pass variable bitrate mode (deprecated) cbr_ld_hq E..V.... Constant bitrate low delay high quality mode cbr_hq E..V.... Constant bitrate high quality mode vbr_hq E..V.... Variable bitrate high quality mode -rc-lookahead <int> E..V.... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0) -surfaces <int> E..V.... Number of concurrent surfaces (from 0 to 64) (default 0) -cbr <boolean> E..V.... Use cbr encoding mode (default false) -2pass <boolean> E..V.... Use 2pass encoding mode (default auto) -gpu <int> E..V.... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any) any E..V.... Pick the first device available list E..V.... List the available devices -delay <int> E..V.... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX) -no-scenecut <boolean> E..V.... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false) -forced-idr <boolean> E..V.... If forcing keyframes, force them as IDR frames. (default false) -b_adapt <boolean> E..V.... When lookahead is enabled, set this to 0 to disable adaptive B-frame decision (default true) -spatial-aq <boolean> E..V.... set to 1 to enable Spatial AQ (default false) -temporal-aq <boolean> E..V.... set to 1 to enable Temporal AQ (default false) -zerolatency <boolean> E..V.... Set 1 to indicate zero latency operation (no reordering delay) (default false) -nonref_p <boolean> E..V.... Set this to 1 to enable automatic insertion of non-reference P-frames (default false) -strict_gop <boolean> E..V.... Set 1 to minimize GOP-to-GOP rate fluctuations (default false) -aq-strength <int> E..V.... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8) -cq <float> E..V.... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0) -aud <boolean> E..V.... Use access unit delimiters (default false) -bluray-compat <boolean> E..V.... Bluray compatibility workarounds (default false) -init_qpP <int> E..V.... Initial QP value for P frame (from -1 to 51) (default -1) -init_qpB <int> E..V.... Initial QP value for B frame (from -1 to 51) (default -1) -init_qpI <int> E..V.... Initial QP value for I frame (from -1 to 51) (default -1) -qp <int> E..V.... Constant quantization parameter rate control method (from -1 to 51) (default -1) -weighted_pred <int> E..V.... Set 1 to enable weighted prediction (from 0 to 1) (default 0) -coder <int> E..V.... Coder type (from -1 to 2) (default default) default E..V.... auto E..V.... cabac E..V.... cavlc E..V.... ac E..V.... vlc E..V.... well, don't ask me for details. Here is no NVIDA GPU on my systems ... Quote
feedzapper Posted May 11, 2018 Posted May 11, 2018 you may have to test this commandline : (if does not work, use the software decoding -> remove "-hwaccel cuvid -c:v h264_cuvid" from the command line [TS HD 3600 kbit] Cmd=-analyzeduration {analyzeduration} {offset} {realtime} -hwaccel cuvid -c:v h264_cuvid -i "{infile}" -f mpegts -pat_period 0.2 -c:v h264_nvenc -bufsize 6400k -maxrate 3200k -crf 20 -g 50 {framerate} -map 0:v:0 -map 0:a:0 -vf "yadif=0:-1:1, scale={scalex}:{scaley}" -preset {vpreset} -tune film -vprofile main -level 30 -acodec libmp3lame -ab 128k -ar 44100 -ac 2 -async 1 -y "{outfile}" maxWidth=1280 maxHeight=720 MimeType=video/mpeg Ext=.ts Delay=2000 Quote
yakov2905 Posted May 27, 2018 Posted May 27, 2018 Hi. 1. If it possible to add {IF} {End If} statement in "Cmd=" line of ffmpegprefs.ini file? as it done in Tasks (to generate mkv). To get full HW transcode on NVIDIA GPU, I use two separate lines, one is for H264 sourse dvb TS stream, second is for MPEG2 source dvb TS stream: [TS H264 HD 3600 kbit] Cmd=-analyzeduration {analyzeduration} {offset} {realtime} -hwaccel cuvid -c:v h264_cuvid -dent 2 -drop_second_field 1 -i "{infile}" -f mpegts -pat_period 0.2 -c:v h264_nvenc -bufsize 6400k -maxrate 3200k -rc vbr_hq -cq 1 -g 50 {framerate} -map 0:v:0 -map 0:a:0 -preset slow -vprofile high -level 30 -acodec libmp3lame -ab 128k -ar 44100 -ac 2 -async 1 -y "{outfile}" maxWidth=1280 maxHeight=720 MimeType=video/mpeg Ext=.ts [TS MPEG2 HD 3600 kbit] Cmd=-analyzeduration {analyzeduration} {offset} {realtime} -hwaccel cuvid -c:v mpeg2_cuvid -dent 2 -drop_second_field 1 -i "{infile}" -f mpegts -pat_period 0.2 -c:v h264_nvenc -bufsize 6400k -maxrate 3200k -rc vbr_hq -cq 1 -g 50 {framerate} -map 0:v:0 -map 0:a:0 -preset slow -vprofile high -level 30 -acodec libmp3lame -ab 128k -ar 44100 -ac 2 -async 1 -y "{outfile}" maxWidth=1280 maxHeight=720 MimeType=video/mpeg Ext=.ts 2. Where I can change -preset {vpreset} list? veryfast, ultrafast, placebo ...etc, are not available for h264_nvenc, but this API encoder has their own preset list: slow, medium, hq, llhq ...etc. Quote
Griga Posted May 27, 2018 Posted May 27, 2018 4 hours ago, yakov2905 said: If it possible to add {IF} {End If} statement in "Cmd=" line of ffmpegprefs.ini file? No. Only conditions supported by FFmpeg are available in the commandline. 4 hours ago, yakov2905 said: Where I can change -preset {vpreset} list? It is not configurable. Quote
laola Posted January 11, 2019 Posted January 11, 2019 Does this mean that it isn't possible to use NVIDIA HW acceleration ? I am also using Kodi as front end and I am looking for the right transcoding parameters to use HW accelaration... Quote
feedzapper Posted January 17, 2019 Posted January 17, 2019 I started some research about minimum hardware requirements for the "h264_nvenc" nvidia hardware GPU encoding with FFMPEG. Note : the most popular cheap Nvidia GT1030 is not be able to support any hardware GPU "encoding" ! For more Information look at these GPU Matrix list : https://developer.nvidia.com/video-encode-decode-gpu-support-matrix Quote
esackbauer Posted June 21, 2024 Posted June 21, 2024 (edited) I am coming back to this thread as I just added an GTX 1050 Ti card (which provides "h264_nvenc") to my system (Windows Server 2016). Installation of the card went well and I am able to use GPU transcoding with Plex. However I cannot get it to work with ffmpeg Version 6.1.1 (which is compiled with --enable-nvenc from here). I have tried the command lines from @yakov2905 but it is not working. Edited June 21, 2024 by esackbauer Quote
esackbauer Posted June 23, 2024 Posted June 23, 2024 (edited) I made a little progress, but it is not working yet. I found out that I need to use an older ffmpeg version 5.1.2-full as this is the last one compatible with the standard GPU drivers available (Windows Server 2016 does not support DCH drivers). I can create a stream and save it to a file, with this command: ffmpeg -analyzeduration 1500k -i "http://127.0.0.1:7522/upnp/channelstream/transcode/2359890530973848367%7CORF1%20HD.ts" -pat_period 0.2 -f mpegts -bufsize 6400k -resize 1280x720 -c:a copy -c:v h264_nvenc -b:v 3200K -y c:\test.mpg Works great, only ~7% CPU utilization for ffmpeg, the rest is done in HW encoding. Next thing was to put this command into ffmpegprefs.ini, so I created a new profile: [TS HW HD 3600 kbit] Cmd=-analyzeduration {analyzeduration} {offset} {realtime} -i "{infile}" -f mpegts -pat_period 0.2 -bufsize 6400k –resize 1280x720 -c:a copy -c:v h264_nvenc -b:v 3200K -y "{outfile}" maxWidth=1280 maxHeight=720 MimeType=video/mpeg Ext=.ts Delay=2000 However I do not get a stream, tuning happens for a very short time, but then it ends. It seems the handover of data to the DMS is not working somehow. Here is the relevant log section from svcdebug.log: Spoiler 23.06.24 13:57:28.684 TDVBHTTPClient ($08022040) CreateTranscodedStream preset=TS%20HW%20HD%203600%20kbit&ffpreset=fast&track=0&subs=-&chid=2359890530973848367%7CORF1%20HD 23.06.24 13:57:28.684 TDVBHTTPClient ($08022040) CreateTranscodedStream 10.0.0.2 VLC/3.0.20 LibVLC/3.0.20 23.06.24 13:57:28.684 Converter Start cmd -analyzeduration 1500k -i "http://127.0.0.1:7522/upnp/channelstream/transcode/2359890530973848367%7CORF1%20HD.ts" -f mpegts -mpegts_original_network_id 1 -mpegts_transport_stream_id 1007 -mpegts_service_id 4911 -mpegts_service_type 1 -metadata service_name="�ORF1 HD" -pat_period 0.2 -bufsize 6400k –resize 1280x720 -c:a copy -c:v h264_nvenc -b:v 3200K -y "\\.\pipe\Output{D22A86CE-6913-4C79-97E9-40259B02D0DC}" 23.06.24 13:57:28.684 SetStandbyBlock WebMain 23.06.24 13:57:28.684 TServiceMain AddReference WebMain: 1 23.06.24 13:57:28.715 TStreamManager GetDocument Lavf/59.27.100 23.06.24 13:57:28.715 TStreamManager GetDocument c:\wwwroot\upnp\channelstream\transcode\2359890530973848367|ORF1 HD.ts 23.06.24 13:57:28.746 TLiveStream AllocateHardware EyeTV Netstream 4Sat (2586) DVB-S 1 23.06.24 13:57:28.746 TRTSPNetworkStream SetTuner TType: 1, Freq: 11303, Symrate: 22000, LOF: 9750, Tone: 0, Pol: 0, DiseqC: 3, FEC: 2, APID: 1921, VPID: 1920, PMT: 107, SID: 4911, TID: 1007, NID: 1, SatMod: 134, DiseqCVal: 0, Flags: 25, Group: 0 23.06.24 13:57:30.324 Plugin 0114EBD8 SetTuner SID=4911 23.06.24 13:57:30.527 Add TSCall 23.06.24 13:57:30.527 AddPID 0 23.06.24 13:57:30.527 AddPID 107 23.06.24 13:57:30.747 AddPID 272 23.06.24 13:57:30.965 AddPID 1 23.06.24 13:57:30.965 DelPID 0 23.06.24 13:57:31.169 DelPID 1 23.06.24 13:57:33.764 Plugin 0114EBD8 UnSetTuner SID=4911 23.06.24 13:57:33.795 TFFMPEGLiveTVConverter OnTerminated 1 23.06.24 13:57:33.889 Del TSCall 23.06.24 13:57:36.920 Release EyeTV Netstream 4Sat (2586) DVB-S 1 23.06.24 13:57:36.920 Free EyeTV Netstream 4Sat (2586) DVB-S 1 23.06.24 13:57:37.357 Freed EyeTV Netstream 4Sat (2586) DVB-S 1 23.06.24 13:57:37.357 hamDeleted EyeTV Netstream 4Sat (2586) DVB-S 1 23.06.24 13:57:51.374 TDVBHTTPClient ($08022040) SessionClosed FFmpegConverter released 23.06.24 13:57:51.374 TDVBHTTPClient ($080443F0) CreateTranscodedStream preset=TS%20HW%20HD%203600%20kbit&ffpreset=fast&track=0&subs=-&chid=2359890548429040486%7CZDF%20HD 23.06.24 13:57:51.374 TDVBHTTPClient ($080443F0) CreateTranscodedStream 10.0.0.2 VLC/3.0.20 LibVLC/3.0.20 23.06.24 13:57:51.374 Converter Start cmd -analyzeduration 1500k -i "http://127.0.0.1:7522/upnp/channelstream/transcode/2359890548429040486%7CZDF%20HD.ts" -f mpegts -mpegts_original_network_id 1 -mpegts_transport_stream_id 1011 -mpegts_service_id 11110 -mpegts_service_type 1 -metadata service_name="�ZDF HD" -pat_period 0.2 -bufsize 6400k –resize 1280x720 -c:a copy -c:v h264_nvenc -b:v 3200K -y "\\.\pipe\Output{88F805EA-4DA1-4DAE-B6EF-C86E8F0B5320}" 23.06.24 13:57:51.405 TStreamManager GetDocument Lavf/59.27.100 23.06.24 13:57:51.405 TStreamManager GetDocument c:\wwwroot\upnp\channelstream\transcode\2359890548429040486|ZDF HD.ts 23.06.24 13:57:51.437 TLiveStream AllocateHardware EyeTV Netstream 4Sat (2586) DVB-S 1 23.06.24 13:57:51.437 TRTSPNetworkStream SetTuner TType: 1, Freq: 11362, Symrate: 22000, LOF: 9750, Tone: 0, Pol: 0, DiseqC: 3, FEC: 2, APID: 6122, VPID: 6110, PMT: 6100, SID: 11110, TID: 1011, NID: 1, SatMod: 134, DiseqCVal: 0, Flags: 24, Group: 0 23.06.24 13:57:52.890 Plugin 0114EBD8 SetTuner SID=11110 23.06.24 13:57:52.999 Add TSCall 23.06.24 13:57:52.999 AddPID 0 23.06.24 13:57:52.999 AddPID 6100 23.06.24 13:57:53.093 DelPID 0 23.06.24 13:57:54.937 Plugin 0114EBD8 UnSetTuner SID=11110 23.06.24 13:57:54.968 TFFMPEGLiveTVConverter OnTerminated 1 23.06.24 13:57:55.048 Del TSCall 23.06.24 13:57:58.970 Release EyeTV Netstream 4Sat (2586) DVB-S 1 23.06.24 13:57:58.970 Free EyeTV Netstream 4Sat (2586) DVB-S 1 23.06.24 13:57:59.658 Freed EyeTV Netstream 4Sat (2586) DVB-S 1 23.06.24 13:57:59.658 hamDeleted EyeTV Netstream 4Sat (2586) DVB-S 1 Even if I copy the exact arguments from the svcdebug.log and start ffmpeg manually to a file, it is working, but not with DMS. Any ideas where to look further? Edited June 23, 2024 by esackbauer Quote
Griga Posted June 23, 2024 Posted June 23, 2024 vor 5 Stunden schrieb esackbauer: 23.06.24 13:57:51.374 Converter Start cmd ... ..... 23.06.24 13:57:54.968 TFFMPEGLiveTVConverter OnTerminated 1 FFmpeg terminates after a few seconds, most likely because it encounters an error. For determining which one you need more debug output, either in a separate file https://stackoverflow.com/questions/2066076/how-do-i-enable-ffmpeg-logging-and-where-can-i-find-the-ffmpeg-log-file/9753077#9753077 or in the svcdebug.log https://www.dvbviewer.tv/forum/topic/58039-intel-quick-sync-video-unterstützung/?do=findComment&comment=447858 Please use this option sparingly, because it lets the DMS really write a lot more. vor 5 Stunden schrieb esackbauer: Even if I copy the exact arguments from the svcdebug.log and start ffmpeg manually to a file, it is working, but not with DMS. The output medium is different. In your test FFmpeg writes to file, which means, it has random access and can jump back if necessary. In the DMS it writes to a pipe, which is an inter-process streaming mechanism provided by Windows. It only allows to write sequentially. FFmpeg refuses to write MP4 output to a pipe, for example, because it can't complete headers at the beginning with values that are not available until the end of the transcoding process. Quote
esackbauer Posted July 12, 2024 Posted July 12, 2024 (edited) Ok, I got it to work, with this line: Cmd=-analyzeduration {analyzeduration} {offset} {realtime} -i "{infile}" -f mpegts -pat_period 0.2 -bufsize 6400k -crf 20 -g 50 -vf "hwupload_cuda,yadif_cuda=0:-1:0" -resize 1280x720 -preset {vpreset} -c:a copy -c:v h264_nvenc -b:v 5000K -y "{outfile}" I am not using the NVidia HW decoder, I had same short freezes with it. Edit: Got it also working with Nvidia HW decoder. The thing is to keep the video data in the GPUs memory, instead of copying it in and out of normal system RAM: Cmd=-analyzeduration {analyzeduration} {offset} {realtime} -hwaccel cuda -hwaccel_output_format cuda -i "{infile}" -f mpegts -pat_period 0.2 -bufsize 6400k -crf 20 -g 50 -vf "yadif_cuda=0:-1:0,scale_cuda=1280:720:interp_algo=lanczos" -preset {vpreset} -c:a copy -c:v h264_nvenc -b:v 5000K -y "{outfile}" Edited July 14, 2024 by esackbauer HW decoder added Quote
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