[FFmpeg-user] Trouble transcoding with cuda
Ray Randomnic
randomnicode at gmail.com
Wed Sep 4 21:07:22 EEST 2019
ffmpeg version N-94578-gd6bd902599-gcff309097a+3 Copyright (c) 2000-2019
the FFmpeg developers
built with gcc 9.2.0 (Rev1, Built by MSYS2 project)
configuration: --disable-autodetect --enable-amf --enable-bzlib
--enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-iconv
--enable-lzma --enable-nvenc --enable-zlib --enable-sdl2 --enable-ffnvcodec
--enable-nvdec --enable-cuda-llvm --enable-libmp3lame --enable-libopus
--enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
--enable-libdav1d --disable-debug --enable-fontconfig --enable-libass
--enable-libbluray --enable-libfreetype --enable-libmfx --enable-libmysofa
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc
--enable-libwavpack --enable-libwebp --enable-libxml2 --enable-libzimg
--enable-libshine --enable-gpl --enable-avisynth --enable-libxvid
--enable-libaom --enable-libopenmpt --enable-version3 --enable-chromaprint
--enable-decklink --enable-frei0r --enable-libbs2b --enable-libcaca
--enable-libcdio --enable-libfdk-aac --enable-libflite --enable-libfribidi
--enable-libgme --enable-libgsm --enable-libilbc --enable-libsvthevc
--enable-libkvazaar --enable-libmodplug --enable-librtmp
--enable-librubberband --enable-libssh --enable-libtesseract
--enable-libxavs --enable-libzmq --enable-libzvbi --enable-openal
--enable-libvmaf --enable-libcodec2 --enable-libsrt --enable-ladspa
--enable-opencl --enable-opengl --enable-libnpp --enable-libopenh264
--enable-openssl --extra-cflags=-fopenmp --extra-libs=-lgomp
--extra-cflags=-DLIBTWOLAME_STATIC --extra-libs=-lstdc++
--extra-cflags=-DLIBSSH_STATIC
--extra-ldflags='-Wl,--allow-multiple-definition'
--extra-cflags=-DCACA_STATIC --extra-cflags=-DMODPLUG_STATIC
--extra-cflags=-DCHROMAPRINT_NODLL --extra-libs=-lstdc++
--extra-cflags=-DZMQ_STATIC --extra-libs=-lpsapi
--extra-cflags=-DLIBXML_STATIC --extra-libs=-liconv --disable-w32threads
--extra-cflags=-DKVZ_STATIC_LIB --enable-nonfree
--extra-cflags='-IC:/PROGRA~1/NVIDIA~2/CUDA/v10.1/include'
--extra-ldflags='-LC:/PROGRA~1/NVIDIA~2/CUDA/v10.1/lib/x64'
libavutil 56. 33.100 / 56. 33.100
libavcodec 58. 55.100 / 58. 55.100
libavformat 58. 31.101 / 58. 31.101
libavdevice 58. 9.100 / 58. 9.100
libavfilter 7. 58.100 / 7. 58.100
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Hyper fast Audio and Video encoder
On Wed, Sep 4, 2019 at 2:05 PM Ray Randomnic <randomnicode at gmail.com> wrote:
> Link for the sample is still alive. I am able to download it. Right-click
> and click save (or use wget or curl?)?
> http://awakeman.redirectme.net/web/testvideo/sample.mp4
>
> As mentioned in the first email, the ffmpeg version is
> N-94578-gd6bd902599-gcff309097a+3
>
> It's compiled from the latest source as of a week ago.
>
>
>
> On Wed, Sep 4, 2019 at 11:39 AM Dennis Mungai <dmngaie at gmail.com> wrote:
>
>> On Wed, 4 Sep 2019 at 07:38, Ray Randomnic <randomnicode at gmail.com>
>> wrote:
>> >
>> > 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 <dmngaie at gmail.com>
>> wrote:
>> >
>> > > On Wed, 4 Sep 2019 at 04:32, Ray Randomnic <randomnicode at 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!
>>
>> Another thing:
>>
>> What version of FFmpeg are you running?
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