Hey, Sure, any video taken by a Samsung device (such as Note or Galaxy S9 or S10) with the HDR10+ setting will do. A sample is posted here: http://awakeman.redirectme.net/web/testvideo/sample.mp4
Thanks. On Tue, Sep 3, 2019 at 10:07 PM Dennis Mungai <dmng...@gmail.com> wrote: > On Wed, 4 Sep 2019 at 04:32, Ray Randomnic <randomnic...@gmail.com> wrote: > > > > Hey folks, > > > > I'm trying to transcode an HEVC (yuv420p10le) encoded file to H264 using > a > > GTX 1650 nvenc and having issues with what I assume are the pixel formats > > conversions on hardware. My encode speed (in fps) is pretty low (see > > below), far lower than I get when transcoding HEVC -> HEVC. ffmpeg > version > > is N-94578-gd6bd902599-gcff309097a+3 (on a Windows 10 OS, though I don't > > think this is relevant). For the purposes of this experiment, let's say > I'm > > not concerned with lossiness with format conversions. > > > > I'd like to know what I'm doing wrong and what commands I can issue for > the > > following: > > decode on GPU -> format conversion (if necessary) on GPU -> encode on > GPU. > > I might not be understanding a few concepts. > > > > The combination of options that I thought were available and I tried out > > are: > > - decoder (I mostly left this blank for auto) and encoder (always > > h264_nvenc) > > - hwaccel > > - hwaccel_output_format > > - filters (vf): > > - format > > - scale_npp (for format conversion on gpu) > > > > I have no idea what the options pix_fmt or other filters like colorspace > do > > for hardware (how is pix_fmt different from hwaccel_output_format?). At > > this point I'm kind of stuck. Don't know how to convert formats on the > GPU > > (I assume the format conversion is happening on the CPU). > > > > Input details: > > ffprobe input.mp4 > > > > Stream #0:0(eng): Video: hevc (Main 10) (hvc1 / 0x31637668), > > yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 1920x1080, 24886 kb/s, SAR > 1:1 > > DAR 16:9, 29.99 fps, ... > > > > Summary of various combinations (- indicates left blank): > > test | hwaccel | hwaccel_output_format | filter (vf) | > > encodefps | note > > 1 | cuda | - | - | X > > | Failed > > 2 | cuda | cuda | - | X > > | Failed > > 3 | cuda | yuv420p | - | 361 > > | Video messed up > > 4 | cuda | cuda | format=yuv420p | X > > | Failed > > 5 | cuvid | cuda | format=yuv420p | 91 > > | Not using GPU decode > > 6 | cuda | - | format=yuv420p | 161 > > | Not using GPU format conversion > > 7 | cuvid | - | format=yuv420p | 91 > > | Not using GPU decode > > 8 | cuda | - | scale_npp=format=yuv420p | X > > | Failed > > 9 | cuda | cuda | scale_npp=format=yuv420p | X > > | Failed > > > > I would expect a speed of around test 3 (without the screwed up video). > Is > > there any way to convert the pixel formats on the hardware without > screwing > > up the video? On a similar note, I'd love for someone to explain the > > failing encodes. > > > > Here are the details for corresponding encodes: > > > > 1. ffmpeg -loglevel verbose -hwaccel cuda -i input.mp4 -c:v h264_nvenc > > output.mp4 > > > > Fails with the following: > > > > [graph_1_in_0_1 @ 000001cc9670e4c0] tb:1/48000 samplefmt:fltp > > samplerate:48000 chlayout:0x3 > > [hevc @ 000001cc8740fc00] NVDEC capabilities: > > [hevc @ 000001cc8740fc00] format supported: yes, max_mb_count: 262144 > > [hevc @ 000001cc8740fc00] min_width: 144, max_width: 8192 > > [hevc @ 000001cc8740fc00] min_height: 144, max_height: 8192 > > [graph 0 input from stream 0:0 @ 000001cc87420840] w:1920 h:1080 > > pixfmt:p010le tb:1/90000 fr:30/1 sar:1/1 sws_param:flags=2 > > [h264_nvenc @ 000001cc8747fbc0] Loaded Nvenc version 9.0 > > [h264_nvenc @ 000001cc8747fbc0] Nvenc initialized successfully > > [h264_nvenc @ 000001cc8747fbc0] 1 CUDA capable devices found > > [h264_nvenc @ 000001cc8747fbc0] [ GPU #0 - < GeForce GTX 1650 > has > > Compute SM 7.5 ] > > [h264_nvenc @ 000001cc8747fbc0] 10 bit encode not supported > > [h264_nvenc @ 000001cc8747fbc0] No NVENC capable devices found > > [h264_nvenc @ 000001cc8747fbc0] Nvenc unloaded > > Error initializing output stream 0:0 -- Error while opening encoder > for > > output stream #0:0 - maybe incorrect parameters such as bit_rate, > rate, > > width or height > > > > 2. ffmpeg -loglevel verbose -hwaccel cuda -hwaccel_output_format cuda > -i > > input.mp4 -c:v h264_nvenc output.mp4 > > > > Fails with the following: > > > > [graph_1_in_0_1 @ 00000240b7932340] tb:1/48000 samplefmt:fltp > > samplerate:48000 chlayout:0x3 > > [hevc @ 00000240b79e37c0] NVDEC capabilities: > > [hevc @ 00000240b79e37c0] format supported: yes, max_mb_count: 262144 > > [hevc @ 00000240b79e37c0] min_width: 144, max_width: 8192 > > [hevc @ 00000240b79e37c0] min_height: 144, max_height: 8192 > > [graph 0 input from stream 0:0 @ 00000240b7937e00] w:1920 h:1080 > > pixfmt:cuda tb:1/90000 fr:30/1 sar:1/1 sws_param:flags=2 > > [h264_nvenc @ 00000240b7483700] Loaded Nvenc version 9.0 > > [h264_nvenc @ 00000240b7483700] Nvenc initialized successfully > > [h264_nvenc @ 00000240b7483700] 10 bit encode not supported > > [h264_nvenc @ 00000240b7483700] Provided device doesn't support > required > > NVENC features > > [h264_nvenc @ 00000240b7483700] Nvenc unloaded > > Error initializing output stream 0:0 -- Error while opening encoder > for > > output stream #0:0 - maybe incorrect parameters such as bit_rate, > rate, > > width or height > > > > Alright, so it seems that the hardware h264 encoder doesn't support 10 > > bit encodes (that's coming from the decoder). So lets try changing the > > format: > > > > > > 3. ffmpeg -loglevel verbose -hwaccel cuda -hwaccel_output_format > yuv420p > > -i input.mp4 -c:v h264_nvenc output.mp4 > > > > Pretty decent encode at ~ 360 fps. Alas, the video is screwed up. > Colors > > are weird: > > > > [graph_1_in_0_1 @ 00000256c9ac7b40] tb:1/48000 samplefmt:fltp > > samplerate:48000 chlayout:0x3 > > [hevc @ 00000256cbb737c0] NVDEC capabilities: > > [hevc @ 00000256cbb737c0] format supported: yes, max_mb_count: 262144 > > [hevc @ 00000256cbb737c0] min_width: 144, max_width: 8192 > > [hevc @ 00000256cbb737c0] min_height: 144, max_height: 8192 > > [graph 0 input from stream 0:0 @ 00000256cbac7e00] w:1920 h:1080 > > pixfmt:yuv420p tb:1/90000 fr:30/1 sar:1/1 sws_param:flags=2 > > [h264_nvenc @ 00000256cb693700] Loaded Nvenc version 9.0 > > [h264_nvenc @ 00000256cb693700] Nvenc initialized successfully > > [h264_nvenc @ 00000256cb693700] 1 CUDA capable devices found > > [h264_nvenc @ 00000256cb693700] [ GPU #0 - < GeForce GTX 1650 > has > > Compute SM 7.5 ] > > [h264_nvenc @ 00000256cb693700] supports NVENC > > > > Let's use a format filter to change format: > > > > 4. ffmpeg -loglevel verbose -hwaccel cuda -hwaccel_output_format cuda > -i > > input.mp4 -vf format=yuv420p -c:v h264_nvenc output.mp4 > > > > Fails with the following: > > > > [graph_1_in_0_1 @ 0000019390de5c80] tb:1/48000 samplefmt:fltp > > samplerate:48000 chlayout:0x3 > > [hevc @ 00000193908675c0] NVDEC capabilities: > > [hevc @ 00000193908675c0] format supported: yes, max_mb_count: 262144 > > [hevc @ 00000193908675c0] min_width: 144, max_width: 8192 > > [hevc @ 00000193908675c0] min_height: 144, max_height: 8192 > > [graph 0 input from stream 0:0 @ 00000193a031ee80] w:1920 h:1080 > > pixfmt:cuda tb:1/90000 fr:30/1 sar:1/1 sws_param:flags=2 > > [auto_scaler_0 @ 00000193b7aee780] w:iw h:ih flags:'bicubic' interl:0 > > [Parsed_format_0 @ 00000193908eee80] auto-inserting filter > > 'auto_scaler_0' between the filter 'graph 0 input from stream 0:0' > and the > > filter 'Parsed_format_0' > > Impossible to convert between the formats supported by the filter > 'graph > > 0 input from stream 0:0' and the filter 'auto_scaler_0' > > Error reinitializing filters! > > Failed to inject frame into filter network: Function not implemented > > Error while processing the decoded data for stream #0:0 > > > > 5. ffmpeg -loglevel verbose -hwaccel cuvid -hwaccel_output_format cuda > > -i input.mp4 -vf format=yuv420p -c:v h264_nvenc output.mp4 > > > > Succeeds, but only encodes at around 91 fps, due to, I assume, not > using > > GPU decoder. What is the difference between cuvid and cuda hwaccel > (why did > > the previous fail and this succeed)? Here is the relevant output: > > > > [graph_1_in_0_1 @ 000002152cc3cc00] tb:1/48000 samplefmt:fltp > > samplerate:48000 chlayout:0x3 > > [hevc @ 000002152ac33700] Initializing cuvid hwaccel > > [AVHWFramesContext @ 000002152cc3f0c0] Pixel format 'yuv420p10le' is > not > > supported > > [hevc @ 000002152ac33700] Error initializing a CUDA frame pool > > cuvid hwaccel requested for input stream #0:0, but cannot be > initialized. > > [hevc @ 000002152ac33700] Error parsing NAL unit #2. > > [hevc @ 000002152ac79180] Could not find ref with POC 0 > > Error while decoding stream #0:0: Operation not permitted > > [graph 0 input from stream 0:0 @ 000002152d638b80] w:1920 h:1080 > > pixfmt:yuv420p10le tb:1/90000 fr:30/1 sar:1/1 sws_param:flags=2 > > [auto_scaler_0 @ 000002152ca176c0] w:iw h:ih flags:'bicubic' interl:0 > > [Parsed_format_0 @ 000002152d3fee40] auto-inserting filter > > 'auto_scaler_0' between the filter 'graph 0 input from stream 0:0' > and the > > filter 'Parsed_format_0' > > [auto_scaler_0 @ 000002152ca176c0] w:1920 h:1080 fmt:yuv420p10le > sar:1/1 > > -> w:1920 h:1080 fmt:yuv420p sar:1/1 flags:0x4 > > [h264_nvenc @ 000002152ac31800] Loaded Nvenc version 9.0 > > [h264_nvenc @ 000002152ac31800] Nvenc initialized successfully > > [h264_nvenc @ 000002152ac31800] 1 CUDA capable devices found > > [h264_nvenc @ 000002152ac31800] [ GPU #0 - < GeForce GTX 1650 > has > > Compute SM 7.5 ] > > [h264_nvenc @ 000002152ac31800] supports NVENC > > > > Take out hwaccel_output: > > > > 6. ffmpeg -loglevel verbose -hwaccel cuda -i in.mp4 -vf format=yuv420p > > -c:v h264_nvenc out.mp4 > > > > Succeeds, encodes at 161 fps (using both hardware GPU decoder and > > encoder, but I believe the changing of format is happening on the CPU > > between the two stages). > > > > [graph_1_in_0_1 @ 0000025491bf2b00] tb:1/48000 samplefmt:fltp > > samplerate:48000 chlayout:0x3 > > [hevc @ 0000025491b84900] NVDEC capabilities: > > [hevc @ 0000025491b84900] format supported: yes, max_mb_count: 262144 > > [hevc @ 0000025491b84900] min_width: 144, max_width: 8192 > > [hevc @ 0000025491b84900] min_height: 144, max_height: 8192 > > [graph 0 input from stream 0:0 @ 0000025491c0eec0] w:1920 h:1080 > > pixfmt:p010le tb:1/90000 fr:30/1 sar:1/1 sws_param:flags=2 > > [auto_scaler_0 @ 00000254b747cfc0] w:iw h:ih flags:'bicubic' interl:0 > > [Parsed_format_0 @ 000002549203d840] auto-inserting filter > > 'auto_scaler_0' between the filter 'graph 0 input from stream 0:0' > and the > > filter 'Parsed_format_0' > > [auto_scaler_0 @ 00000254b747cfc0] w:1920 h:1080 fmt:p010le sar:1/1 -> > > w:1920 h:1080 fmt:yuv420p sar:1/1 flags:0x4 > > [h264_nvenc @ 00000254920a0f40] Loaded Nvenc version 9.0 > > [h264_nvenc @ 00000254920a0f40] Nvenc initialized successfully > > [h264_nvenc @ 00000254920a0f40] 1 CUDA capable devices found > > [h264_nvenc @ 00000254920a0f40] [ GPU #0 - < GeForce GTX 1650 > has > > Compute SM 7.5 ] > > [h264_nvenc @ 00000254920a0f40] supports NVENC > > > > > > 7. ffmpeg -loglevel verbose -hwaccel cuvid -i in.mp4 -vf > format=yuv420p > > -c:v h264_nvenc out.mp4 > > > > Only encoding on GPU, not decoding (91 fps). > > > > [graph_1_in_0_1 @ 000002163875b5c0] tb:1/48000 samplefmt:fltp > > samplerate:48000 chlayout:0x3 > > [hevc @ 00000216380c3c00] Initializing cuvid hwaccel > > [AVHWFramesContext @ 00000216387fc300] Pixel format 'yuv420p10le' is > not > > supported > > [hevc @ 00000216380c3c00] Error initializing a CUDA frame pool > > cuvid hwaccel requested for input stream #0:0, but cannot be > initialized. > > [hevc @ 00000216380c3c00] Error parsing NAL unit #2. > > [hevc @ 000002163813d300] Could not find ref with POC 0 > > Error while decoding stream #0:0: Operation not permitted > > [graph 0 input from stream 0:0 @ 00000216387594c0] w:1920 h:1080 > > pixfmt:yuv420p10le tb:1/90000 fr:30/1 sar:1/1 sws_param:flags=2 > > [auto_scaler_0 @ 000002164f8a0c40] w:iw h:ih flags:'bicubic' interl:0 > > [Parsed_format_0 @ 00000216387593c0] auto-inserting filter > > 'auto_scaler_0' between the filter 'graph 0 input from stream 0:0' > and the > > filter 'Parsed_format_0' > > [auto_scaler_0 @ 000002164f8a0c40] w:1920 h:1080 fmt:yuv420p10le > sar:1/1 > > -> w:1920 h:1080 fmt:yuv420p sar:1/1 flags:0x4 > > [h264_nvenc @ 0000021638590f40] Loaded Nvenc version 9.0 > > [h264_nvenc @ 0000021638590f40] Nvenc initialized successfully > > [h264_nvenc @ 0000021638590f40] 1 CUDA capable devices found > > [h264_nvenc @ 0000021638590f40] [ GPU #0 - < GeForce GTX 1650 > has > > Compute SM 7.5 ] > > [h264_nvenc @ 0000021638590f40] supports NVENC > > > > Lets see if I can do format conversion in the GPU (instead of GPU -> > CPU > > -> GPU), by using the scale_npp filter. > > > > 8. ffmpeg -loglevel verbose -hwaccel cuda -i input.mp4 -vf > > scale_npp=format=yuv420p -c:v h264_nvenc output.mp4 > > > > Fails > > > > [graph_1_in_0_1 @ 0000022f3001e080] tb:1/48000 samplefmt:fltp > > samplerate:48000 chlayout:0x3 > > [hevc @ 0000022f207d7f40] NVDEC capabilities: > > [hevc @ 0000022f207d7f40] format supported: yes, max_mb_count: 262144 > > [hevc @ 0000022f207d7f40] min_width: 144, max_width: 8192 > > [hevc @ 0000022f207d7f40] min_height: 144, max_height: 8192 > > [graph 0 input from stream 0:0 @ 0000022f3034ee80] w:1920 h:1080 > > pixfmt:p010le tb:1/90000 fr:30/1 sar:1/1 sws_param:flags=2 > > [auto_scaler_0 @ 0000022f47b2d300] w:iw h:ih flags:'bicubic' interl:0 > > [Parsed_scale_npp_0 @ 0000022f20c49b40] auto-inserting filter > > 'auto_scaler_0' between the filter 'graph 0 input from stream 0:0' > and the > > filter 'Parsed_scale_npp_0' > > Impossible to convert between the formats supported by the filter > 'graph > > 0 input from stream 0:0' and the filter 'auto_scaler_0' > > Error reinitializing filters! > > Failed to inject frame into filter network: Function not implemented > > Error while processing the decoded data for stream #0:0 > > > > > > 9. ffmpeg -loglevel verbose -hwaccel cuda -hwaccel_output_format cuda > -i > > in.mp4 -vf scale_npp=format=yuv420p -c:v h264_nvenc out.mp4 > > > > Fails: > > > > [graph_1_in_0_1 @ 00000200040adac0] tb:1/48000 samplefmt:fltp > > samplerate:48000 chlayout:0x3 > > [hevc @ 00000200747b65c0] NVDEC capabilities: > > [hevc @ 00000200747b65c0] format supported: yes, max_mb_count: 262144 > > [hevc @ 00000200747b65c0] min_width: 144, max_width: 8192 > > [hevc @ 00000200747b65c0] min_height: 144, max_height: 8192 > > [graph 0 input from stream 0:0 @ 00000200040aa8c0] w:1920 h:1080 > > pixfmt:cuda tb:1/90000 fr:30/1 sar:1/1 sws_param:flags=2 > > [Parsed_scale_npp_0 @ 0000020074c75b80] Unsupported input format: > p010le > > [Parsed_scale_npp_0 @ 0000020074c75b80] Failed to configure output pad > > on Parsed_scale_npp_0 > > Error reinitializing filters! > > Failed to inject frame into filter network: Function not implemented > > Error while processing the decoded data for stream #0:0 > > > > > > I'd appreciate any help or pointer in the right direction (even an > > alternate mailing list). > > > Hey there, > > Could you kindly provide a download link to the sample of the input > file you're working on? > That way we can reproduce what you're seeing here, thanks! > _______________________________________________ > 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".
