Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
Am Do., 21. Nov. 2019 um 17:13 Uhr schrieb Ted Park : > > > You cannot specify a frame size for mpeg video… > > Really? Do you mean the decoder ignores any frame format/doesn't use the info? I think "ignore" is the wrong word, it's just not how video decoding works for compressed codecs. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
> You cannot specify a frame size for mpeg video… Really? Do you mean the decoder ignores any frame format/doesn't use the info? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
Am Do., 21. Nov. 2019 um 10:17 Uhr schrieb Ted Park : > > [AVHWFramesContext @ 0x3a36600] [IMGUTILS @ 0x7ffc3bcc6230] Picture > > size 0x0 is invalid > > [mpeg2_cuvid @ 0x3098a40] Error initializing a CUDA frame pool > > cuvid hwaccel requested for input stream #0:0, but cannot be initialized. > > [mpeg2_cuvid @ 0x3098a40] ff_get_format failed: -1 > > It seems you have to specify frame size at the very least. You cannot specify a frame size for mpeg video... Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
> Error while opening decoder for input stream #0:0 : Operation not permitted Is 0.0.0.0 is the actual value you used the command? The operation not permitted error could be referring to the tcp socket you’re opening… Though trying to connect to 0.0.0.0 leads to inconsistent behavior on different platforms, so I’m not sure. If that’s the actual address you used, I would change that first. > ffmpeg -threads 1 -vsync 1 -hwaccel cuvid -c:v mpeg2_cuvid -deint 1 > -drop_second_field 1 -i 'http://0.0.0.0:46007’…… Also, you’re still getting the input via http so I would have thought you’d have to specify just about all of the codec parameters, but I guess on your first one, ffmpeg was able to figure it out through some kind of heuristic methods? Or from the http header indicating mpeg ts stream made it easier? What is the server, can you post the reply headers you get? > [AVHWFramesContext @ 0x3a36600] [IMGUTILS @ 0x7ffc3bcc6230] Picture > size 0x0 is invalid > [mpeg2_cuvid @ 0x3098a40] Error initializing a CUDA frame pool > cuvid hwaccel requested for input stream #0:0, but cannot be initialized. > [mpeg2_cuvid @ 0x3098a40] ff_get_format failed: -1 It seems you have to specify frame size at the very least. Also, Dennis mentioned threading issues, which reminded me that I needed to mess with the number of cuda surfaces based filters I was using, if you’re deinterlacing and encoding using nvenc I would try 8 as a starting point. I don’t think you should have to specify -threads 1, since the decoder doesn’t support any threading, it’s not going to make any, but the cuda api might be crippled with that option so I would just leave it out and keep it at auto. Basically you need to know beforehand what the codec parameters are before, or accept there is going to be latency even if you are able to get it to detect the format. One last thing, keeping vsync 0 and setting output frame rate is a better idea imho. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
Am Do., 21. Nov. 2019 um 10:01 Uhr schrieb Dennis Mungai : > > On Thu, 21 Nov 2019 at 06:34, Andy wrote: > > > > It seems like again I hit the wall. While one mpeg2 source works with > > the mpeg2_cuvid option, the other gives me troubles. > > > > ffmpeg -threads 1 -vsync 1 -hwaccel cuvid -c:v mpeg2_cuvid -deint 1 > > -drop_second_field 1 -i 'http://0.0.0.0:46007' -c:v h264_nvenc -vb > > 1000k -preset:v medium -c:a aac -ac 2 -ar 48k -ab 96k -map 0:0 -map > > 0:1 -f flv rtmp://0.0.0.0:1940/live/1 > > ffmpeg version N-95728-g1354c39 Copyright (c) 2000-2019 the FFmpeg > > developers > > built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609 > > configuration: --enable-cuda --enable-cuvid --enable-nvenc > > --enable-nonfree --enable-libnpp > > --extra-cflags=-I/usr/local/cuda/include > > --extra-ldflags=-L/usr/local/cuda/lib64 --enable-libx264 > > --enable-libfdk-aac --enable-gpl > > libavutil 56. 35.101 / 56. 35.101 > > libavcodec 58. 62.100 / 58. 62.100 > > libavformat58. 35.100 / 58. 35.100 > > libavdevice58. 9.100 / 58. 9.100 > > libavfilter 7. 66.100 / 7. 66.100 > > libswscale 5. 6.100 / 5. 6.100 > > libswresample 3. 6.100 / 3. 6.100 > > libpostproc55. 6.100 / 55. 6.100 > > [mpegts @ 0x3092a40] Could not find codec parameters for stream 0 > > (Video: mpeg2video ([27][0][0][0] / 0x001B), none(tv)): unspecified > > size > > Consider increasing the value for the 'analyzeduration' and 'probesize' > > options > > Input #0, mpegts, from 'http://0.0.0.0:46007': > > Duration: N/A, start: 67033.565011, bitrate: 192 kb/s > > Program 107 > > Metadata: > > service_name: NTV > > service_provider: NTV BD > > Stream #0:0[0x327]: Video: mpeg2video ([27][0][0][0] / 0x001B), > > none(tv), 90k tbr, 90k tbn, 90k tbc > > Stream #0:1[0x2c3]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, > > stereo, fltp, 192 kb/s > > [AVHWFramesContext @ 0x3a36600] [IMGUTILS @ 0x7ffc3bcc6230] Picture > > size 0x0 is invalid > > [mpeg2_cuvid @ 0x3098a40] Error initializing a CUDA frame pool > > cuvid hwaccel requested for input stream #0:0, but cannot be initialized. > > [mpeg2_cuvid @ 0x3098a40] ff_get_format failed: -1 > > Stream mapping: > > Stream #0:0 -> #0:0 (mpeg2video (mpeg2_cuvid) -> h264 (h264_nvenc)) > > Stream #0:1 -> #0:1 (mp2 (native) -> aac (native)) > > Error while opening decoder for input stream #0:0 : Operation not permitted > > > Show us the output of: > > ffprobe -i 'http://0.0.0.0:46007' Don't we already see that above? Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
On Thu, 21 Nov 2019 at 06:34, Andy wrote: > > It seems like again I hit the wall. While one mpeg2 source works with > the mpeg2_cuvid option, the other gives me troubles. > > ffmpeg -threads 1 -vsync 1 -hwaccel cuvid -c:v mpeg2_cuvid -deint 1 > -drop_second_field 1 -i 'http://0.0.0.0:46007' -c:v h264_nvenc -vb > 1000k -preset:v medium -c:a aac -ac 2 -ar 48k -ab 96k -map 0:0 -map > 0:1 -f flv rtmp://0.0.0.0:1940/live/1 > ffmpeg version N-95728-g1354c39 Copyright (c) 2000-2019 the FFmpeg developers > built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609 > configuration: --enable-cuda --enable-cuvid --enable-nvenc > --enable-nonfree --enable-libnpp > --extra-cflags=-I/usr/local/cuda/include > --extra-ldflags=-L/usr/local/cuda/lib64 --enable-libx264 > --enable-libfdk-aac --enable-gpl > libavutil 56. 35.101 / 56. 35.101 > libavcodec 58. 62.100 / 58. 62.100 > libavformat58. 35.100 / 58. 35.100 > libavdevice58. 9.100 / 58. 9.100 > libavfilter 7. 66.100 / 7. 66.100 > libswscale 5. 6.100 / 5. 6.100 > libswresample 3. 6.100 / 3. 6.100 > libpostproc55. 6.100 / 55. 6.100 > [mpegts @ 0x3092a40] Could not find codec parameters for stream 0 > (Video: mpeg2video ([27][0][0][0] / 0x001B), none(tv)): unspecified > size > Consider increasing the value for the 'analyzeduration' and 'probesize' > options > Input #0, mpegts, from 'http://0.0.0.0:46007': > Duration: N/A, start: 67033.565011, bitrate: 192 kb/s > Program 107 > Metadata: > service_name: NTV > service_provider: NTV BD > Stream #0:0[0x327]: Video: mpeg2video ([27][0][0][0] / 0x001B), > none(tv), 90k tbr, 90k tbn, 90k tbc > Stream #0:1[0x2c3]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, > stereo, fltp, 192 kb/s > [AVHWFramesContext @ 0x3a36600] [IMGUTILS @ 0x7ffc3bcc6230] Picture > size 0x0 is invalid > [mpeg2_cuvid @ 0x3098a40] Error initializing a CUDA frame pool > cuvid hwaccel requested for input stream #0:0, but cannot be initialized. > [mpeg2_cuvid @ 0x3098a40] ff_get_format failed: -1 > Stream mapping: > Stream #0:0 -> #0:0 (mpeg2video (mpeg2_cuvid) -> h264 (h264_nvenc)) > Stream #0:1 -> #0:1 (mp2 (native) -> aac (native)) > Error while opening decoder for input stream #0:0 : Operation not permitted Show us the output of: ffprobe -i 'http://0.0.0.0:46007' Secondly, are you on a Turing (TU10x-) series GPU, the RTX series? If that's the case, then use -deint 2 in place of -deint 1. Turing explicitly disabled interlaced encoding *but* this might not be the case here as we don't see the nvenc encoder quit on you. Another observation: In your ffmpeg build options, I see --enable-cuda. If you can, rebuild that package and pass --enable-cuda-nvcc, that previous option is deprecated. The other option --enable-cuda-llvm can be used if you don't need scale_npp, but it requires a working installation of clang. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
Am Do., 21. Nov. 2019 um 04:34 Uhr schrieb Andy : > > It seems like again I hit the wall. While one mpeg2 source works with > the mpeg2_cuvid option, the other gives me troubles. > > ffmpeg -threads 1 -vsync 1 -hwaccel cuvid -c:v mpeg2_cuvid -deint 1 > -drop_second_field 1 -i 'http://0.0.0.0:46007' -c:v h264_nvenc -vb > 1000k -preset:v medium -c:a aac -ac 2 -ar 48k -ab 96k -map 0:0 -map > 0:1 -f flv rtmp://0.0.0.0:1940/live/1 > ffmpeg version N-95728-g1354c39 Copyright (c) 2000-2019 the FFmpeg developers > built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609 > configuration: --enable-cuda --enable-cuvid --enable-nvenc > --enable-nonfree --enable-libnpp > --extra-cflags=-I/usr/local/cuda/include > --extra-ldflags=-L/usr/local/cuda/lib64 --enable-libx264 > --enable-libfdk-aac --enable-gpl > libavutil 56. 35.101 / 56. 35.101 > libavcodec 58. 62.100 / 58. 62.100 > libavformat58. 35.100 / 58. 35.100 > libavdevice58. 9.100 / 58. 9.100 > libavfilter 7. 66.100 / 7. 66.100 > libswscale 5. 6.100 / 5. 6.100 > libswresample 3. 6.100 / 3. 6.100 > libpostproc55. 6.100 / 55. 6.100 > [mpegts @ 0x3092a40] Could not find codec parameters for stream 0 > (Video: mpeg2video ([27][0][0][0] / 0x001B), none(tv)): unspecified > size > Consider increasing the value for the 'analyzeduration' and 'probesize' > options > Input #0, mpegts, from 'http://0.0.0.0:46007': > Duration: N/A, start: 67033.565011, bitrate: 192 kb/s > Program 107 > Metadata: > service_name: NTV > service_provider: NTV BD > Stream #0:0[0x327]: Video: mpeg2video ([27][0][0][0] / 0x001B), > none(tv), 90k tbr, 90k tbn, 90k tbc Feel free to record such a sample with wget, curl or tcpdump and provide it if it allows to reproduce the issue. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
It seems like again I hit the wall. While one mpeg2 source works with the mpeg2_cuvid option, the other gives me troubles. ffmpeg -threads 1 -vsync 1 -hwaccel cuvid -c:v mpeg2_cuvid -deint 1 -drop_second_field 1 -i 'http://0.0.0.0:46007' -c:v h264_nvenc -vb 1000k -preset:v medium -c:a aac -ac 2 -ar 48k -ab 96k -map 0:0 -map 0:1 -f flv rtmp://0.0.0.0:1940/live/1 ffmpeg version N-95728-g1354c39 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609 configuration: --enable-cuda --enable-cuvid --enable-nvenc --enable-nonfree --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64 --enable-libx264 --enable-libfdk-aac --enable-gpl libavutil 56. 35.101 / 56. 35.101 libavcodec 58. 62.100 / 58. 62.100 libavformat58. 35.100 / 58. 35.100 libavdevice58. 9.100 / 58. 9.100 libavfilter 7. 66.100 / 7. 66.100 libswscale 5. 6.100 / 5. 6.100 libswresample 3. 6.100 / 3. 6.100 libpostproc55. 6.100 / 55. 6.100 [mpegts @ 0x3092a40] Could not find codec parameters for stream 0 (Video: mpeg2video ([27][0][0][0] / 0x001B), none(tv)): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options Input #0, mpegts, from 'http://0.0.0.0:46007': Duration: N/A, start: 67033.565011, bitrate: 192 kb/s Program 107 Metadata: service_name: NTV service_provider: NTV BD Stream #0:0[0x327]: Video: mpeg2video ([27][0][0][0] / 0x001B), none(tv), 90k tbr, 90k tbn, 90k tbc Stream #0:1[0x2c3]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 192 kb/s [AVHWFramesContext @ 0x3a36600] [IMGUTILS @ 0x7ffc3bcc6230] Picture size 0x0 is invalid [mpeg2_cuvid @ 0x3098a40] Error initializing a CUDA frame pool cuvid hwaccel requested for input stream #0:0, but cannot be initialized. [mpeg2_cuvid @ 0x3098a40] ff_get_format failed: -1 Stream mapping: Stream #0:0 -> #0:0 (mpeg2video (mpeg2_cuvid) -> h264 (h264_nvenc)) Stream #0:1 -> #0:1 (mp2 (native) -> aac (native)) Error while opening decoder for input stream #0:0 : Operation not permitted ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
Thanks Le mar. 19 nov. 2019 à 04:07, Andy a écrit : > On Mon, Nov 18, 2019 at 12:35 PM Ted Park wrote: > > > > I just noticed this but it some examples it seems you are specifying h264 > decoder for an input that (apparently) is mpeg? I’m not sure which is > which, but I think cuvid and nvdec differ in the way they map or copy to > graphics memory thought maybe that might be the difference between the logs > (hw decoder into gpu you probably need to specify format, especially when > its input is http, I don’t know if in ffmpeg the protocol takes mime type > into account.) For the compilation issues, check that you have cuda nvenc > ffnv… etc where they can be found by configure script, clean before make. > > ___ > > ffmpeg-user mailing list > > ffmpeg-user@ffmpeg.org > > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > > You are right, and all the inputs that are giving me troubles are indeed SD > MPEG2 video mpegts format. I tried searching on how to specify input for > hwaccel but can't find anything for mpegts > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
This finally fixed it: -hwaccel cuvid -c:v mpeg2_cuvid Indeed, you need to specify the input type before transcoding! Thank you On Mon, Nov 18, 2019 at 12:35 PM Ted Park wrote: > > I just noticed this but it some examples it seems you are specifying h264 > decoder for an input that (apparently) is mpeg? I’m not sure which is which, > but I think cuvid and nvdec differ in the way they map or copy to graphics > memory thought maybe that might be the difference between the logs (hw > decoder into gpu you probably need to specify format, especially when its > input is http, I don’t know if in ffmpeg the protocol takes mime type into > account.) For the compilation issues, check that you have cuda nvenc ffnv… > etc where they can be found by configure script, clean before make. > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
Unfortunately lowering threads did not help and resulted in the same error. I noticed that all inputs that im having issues with are mpegts... On Sun, Nov 17, 2019 at 12:33 AM Dennis Mungai wrote: > Hey there, > > Lower your decoder threads and retest: > > ffmpeg -threads 1 -vsync 1 -hwaccel cuvid -c:v h264_cuvid -deint 1 > -drop_second_field 1 -i 'http://0.0.0.0:4603' -c:v h264_nvenc -vb > 1000k -preset:v medium -c:a aac -ac 2 -ar 48k -ab 96k test.mp4 > > Now with the yadif_cuda filter: > > ffmpeg -threads 1 -vsync 1 -hwaccel nvdec -hwaccel_output_format cuda -i > 'http://0.0.0.0:4603' -vf "yadif_cuda" -c:v h264_nvenc -vb 1000k > -preset:v medium -c:a > aac -ac 2 -ar 48k -ab 96k test.mp4 > > For usage see: > > ffmpeg -h filter=yadif_cuda > > For what to expect, see > > https://stackoverflow.com/questions/55687189/how-to-use-gpu-to-accelerate-the-processing-speed-of-ffmpeg-filter/55747785#55747785 > > Running the nvdec & cuvid decoders with multiple threads is the > fastest way to land in hot water. > Infact, the decoder will warn you if threads (either in auto mode or > manually set) exceed 16. These hwaccels do not implement threading. > > You can confirm that by running: > > ffmpeg -h decoder=h264_cuvid > > And see that threading is not a reported capability. > > I also changed your commands to -vsync 1 as the MP4 muxer > implelentation in libav supports CFR only, and NALU HRD stuffing isn't > supported. > Even if you're using libx264, do not use > > -x264-params "nal-hrd=cbr" > > When generating (f)mp4 content as you'll generate invalid output, with > audio predominantly out of sync. > If you truly require VFR output as part of your workflow, then stick > to either mpegts (also supported in chunks via HLS or segment muxer) > OR matroska (mkv). > > Cheers, > > Dennis M. > > On Sat, 16 Nov 2019 at 20:37, Ted Park wrote: > > > > How is the stream being served over http? Does it make any difference if > you save a file wget for example first? > > ___ > > ffmpeg-user mailing list > > ffmpeg-user@ffmpeg.org > > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
On Mon, Nov 18, 2019 at 12:35 PM Ted Park wrote: > > I just noticed this but it some examples it seems you are specifying h264 decoder for an input that (apparently) is mpeg? I’m not sure which is which, but I think cuvid and nvdec differ in the way they map or copy to graphics memory thought maybe that might be the difference between the logs (hw decoder into gpu you probably need to specify format, especially when its input is http, I don’t know if in ffmpeg the protocol takes mime type into account.) For the compilation issues, check that you have cuda nvenc ffnv… etc where they can be found by configure script, clean before make. > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". You are right, and all the inputs that are giving me troubles are indeed SD MPEG2 video mpegts format. I tried searching on how to specify input for hwaccel but can't find anything for mpegts ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
I just noticed this but it some examples it seems you are specifying h264 decoder for an input that (apparently) is mpeg? I’m not sure which is which, but I think cuvid and nvdec differ in the way they map or copy to graphics memory thought maybe that might be the difference between the logs (hw decoder into gpu you probably need to specify format, especially when its input is http, I don’t know if in ffmpeg the protocol takes mime type into account.) For the compilation issues, check that you have cuda nvenc ffnv… etc where they can be found by configure script, clean before make. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
On Sun, Nov 17, 2019 at 12:33 AM Dennis Mungai wrote: > > Hey there, > > Lower your decoder threads and retest: > > ffmpeg -threads 1 -vsync 1 -hwaccel cuvid -c:v h264_cuvid -deint 1 > -drop_second_field 1 -i 'http://0.0.0.0:4603' -c:v h264_nvenc -vb > 1000k -preset:v medium -c:a aac -ac 2 -ar 48k -ab 96k test.mp4 > > Now with the yadif_cuda filter: > > ffmpeg -threads 1 -vsync 1 -hwaccel nvdec -hwaccel_output_format cuda -i > 'http://0.0.0.0:4603' -vf "yadif_cuda" -c:v h264_nvenc -vb 1000k > -preset:v medium -c:a > aac -ac 2 -ar 48k -ab 96k test.mp4 > > For usage see: > > ffmpeg -h filter=yadif_cuda > > For what to expect, see > https://stackoverflow.com/questions/55687189/how-to-use-gpu-to-accelerate-the-processing-speed-of-ffmpeg-filter/55747785#55747785 > > Running the nvdec & cuvid decoders with multiple threads is the > fastest way to land in hot water. > Infact, the decoder will warn you if threads (either in auto mode or > manually set) exceed 16. These hwaccels do not implement threading. > > You can confirm that by running: > > ffmpeg -h decoder=h264_cuvid > > And see that threading is not a reported capability. > > I also changed your commands to -vsync 1 as the MP4 muxer > implelentation in libav supports CFR only, and NALU HRD stuffing isn't > supported. > Even if you're using libx264, do not use > > -x264-params "nal-hrd=cbr" > > When generating (f)mp4 content as you'll generate invalid output, with > audio predominantly out of sync. > If you truly require VFR output as part of your workflow, then stick > to either mpegts (also supported in chunks via HLS or segment muxer) > OR matroska (mkv). > > Cheers, > > Dennis M. > > On Sat, 16 Nov 2019 at 20:37, Ted Park wrote: > > > > How is the stream being served over http? Does it make any difference if > > you save a file wget for example first? > > ___ > > ffmpeg-user mailing list > > ffmpeg-user@ffmpeg.org > > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". Unfortunately, the first command results in the same error(i tried mkv and flv) and second command gives me a No such filter: 'yadif_cuda' error/ I am trying to figure out how to recompile ffmpeg with this filter but to no avail. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
Hey there, Lower your decoder threads and retest: ffmpeg -threads 1 -vsync 1 -hwaccel cuvid -c:v h264_cuvid -deint 1 -drop_second_field 1 -i 'http://0.0.0.0:4603' -c:v h264_nvenc -vb 1000k -preset:v medium -c:a aac -ac 2 -ar 48k -ab 96k test.mp4 Now with the yadif_cuda filter: ffmpeg -threads 1 -vsync 1 -hwaccel nvdec -hwaccel_output_format cuda -i 'http://0.0.0.0:4603' -vf "yadif_cuda" -c:v h264_nvenc -vb 1000k -preset:v medium -c:a aac -ac 2 -ar 48k -ab 96k test.mp4 For usage see: ffmpeg -h filter=yadif_cuda For what to expect, see https://stackoverflow.com/questions/55687189/how-to-use-gpu-to-accelerate-the-processing-speed-of-ffmpeg-filter/55747785#55747785 Running the nvdec & cuvid decoders with multiple threads is the fastest way to land in hot water. Infact, the decoder will warn you if threads (either in auto mode or manually set) exceed 16. These hwaccels do not implement threading. You can confirm that by running: ffmpeg -h decoder=h264_cuvid And see that threading is not a reported capability. I also changed your commands to -vsync 1 as the MP4 muxer implelentation in libav supports CFR only, and NALU HRD stuffing isn't supported. Even if you're using libx264, do not use -x264-params "nal-hrd=cbr" When generating (f)mp4 content as you'll generate invalid output, with audio predominantly out of sync. If you truly require VFR output as part of your workflow, then stick to either mpegts (also supported in chunks via HLS or segment muxer) OR matroska (mkv). Cheers, Dennis M. On Sat, 16 Nov 2019 at 20:37, Ted Park wrote: > > How is the stream being served over http? Does it make any difference if you > save a file wget for example first? > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
How is the stream being served over http? Does it make any difference if you save a file wget for example first? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
No luck with -vf yadif_cuda=0:-1:0 ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg cuvid not transcoding properly
Try using yadif_cuda to deinterlace instead ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
