#10668: cuvid regression creates jerky output
-------------------------------------+-------------------------------------
Reporter: Jason Dove | Type: defect
Status: new | Priority: important
Component: avcodec | Version: git-
Keywords: cuvid | master
decoder nvidia | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
Using the h264_cuvid decoder with certain content will cause the output to
be jerky.
How to reproduce:
{{{
% ffmpeg -c:v h264_cuvid -i input.mkv -c:v libx264 -y output.mkv
ffmpeg version N-112777-g08e97dae20 Copyright (c) 2000-2023 the FFmpeg
developers
built with gcc 13.2.1 (GCC) 20230801
configuration: --prefix=/usr --extra-cflags=-I/opt/cuda/include --extra-
ldflags=-L/opt/cuda/lib64 --enable-lto --disable-rpath --enable-gpl
--enable-version3 --enable-nonfree --enable-shared --disable-static
--disable-stripping --disable-htmlpages --enable-gray --enable-alsa
--enable-avisynth --enable-bzlib --enable-chromaprint --enable-frei0r
--enable-gcrypt --enable-gmp --enable-gnutls --enable-iconv --enable-
ladspa --enable-lcms2 --enable-libaom --enable-libaribb24 --enable-libass
--enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcelt
--enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libdavs2
--enable-libdc1394 --enable-libfdk-aac --enable-libflite --enable-
libfontconfig --enable-libfreetype --enable-libfribidi --enable-
libharfbuzz --enable-libglslang --enable-libgme --enable-libgsm --enable-
libiec61883 --enable-libilbc --enable-libjack --enable-libjxl --enable-
libklvanc --enable-libkvazaar --enable-liblensfun --enable-libmodplug
--enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--disable-libopencv --enable-libopenh264 --enable-libopenjpeg --enable-
libopenmpt --enable-libopenvino --enable-libopus --enable-libplacebo
--enable-libpulse --enable-librabbitmq --enable-librav1e --enable-librist
--enable-librsvg --enable-librubberband --enable-librtmp --enable-libshine
--enable-libsmbclient --enable-libsnappy --enable-libsoxr --enable-
libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-
libsvthevc --enable-libsvtvp9 --disable-libtensorflow --enable-
libtesseract --enable-libtheora --disable-libtls --enable-libtwolame
--enable-libuavs3d --enable-libv4l2 --enable-libvidstab --enable-libvmaf
--enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-
libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-
libxavs2 --enable-libxcb --enable-libxcb-shm --enable-libxcb-xfixes
--enable-libxcb-shape --enable-libxvid --enable-libxml2 --enable-libzimg
--enable-libzmq --enable-libzvbi --enable-lv2 --enable-lzma --enable-
decklink --disable-mbedtls --enable-libmysofa --enable-openal --enable-
opencl --enable-opengl --disable-openssl --disable-pocketsphinx --enable-
sndio --enable-sdl2 --enable-vapoursynth --enable-vulkan --enable-xlib
--enable-zlib --enable-amf --enable-cuda-nvcc --enable-cuda-llvm --enable-
cuvid --enable-ffnvcodec --enable-libdrm --enable-libvpl --enable-libnpp
--enable-nvdec --enable-nvenc --enable-omx --enable-rkmpp --enable-
v4l2-m2m --enable-vaapi --enable-vdpau
libavutil 58. 32.100 / 58. 32.100
libavcodec 60. 33.100 / 60. 33.100
libavformat 60. 17.100 / 60. 17.100
libavdevice 60. 4.100 / 60. 4.100
libavfilter 9. 13.100 / 9. 13.100
libswscale 7. 6.100 / 7. 6.100
libswresample 4. 13.100 / 4. 13.100
libpostproc 57. 4.100 / 57. 4.100
Input #0, matroska,webm, from 'input.mkv':
Metadata:
ENCODER : Lavf60.17.100
Duration: 00:00:20.25, start: 0.000000, bitrate: 5560 kb/s
Stream #0:0: Video: h264 (Main), yuv420p(tv, bt709, progressive),
1918x814 [SAR 1:1 DAR 959:407], 23.98 fps, 23.98 tbr, 1k tbn (default)
Metadata:
DURATION : 00:00:20.250000000
Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp (default)
Metadata:
DURATION : 00:00:20.031000000
Stream mapping:
Stream #0:0 -> #0:0 (h264 (h264_cuvid) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> vorbis (libvorbis))
Press [q] to stop, [?] for help
[libx264 @ 0x55640793d640] using SAR=1/1
[libx264 @ 0x55640793d640] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x55640793d640] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x55640793d640] 264 - core 164 r3108 31e19f9 - H.264/MPEG-4 AVC
codec - Copyleft 2003-2023 - http://www.videolan.org/x264.html - options:
cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1
psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1
cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=18
lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23
scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, matroska, to 'output.mkv':
Metadata:
encoder : Lavf60.17.100
Stream #0:0: Video: h264 (H264 / 0x34363248), nv12(tv, bt709,
progressive), 1918x814 [SAR 1:1 DAR 959:407], q=2-31, 23.98 fps, 1k tbn
(default)
Metadata:
DURATION : 00:00:20.250000000
encoder : Lavc60.33.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
Stream #0:1: Audio: vorbis (oV[0][0] / 0x566F), 48000 Hz, stereo, fltp
(default)
Metadata:
DURATION : 00:00:20.031000000
encoder : Lavc60.33.100 libvorbis
[out#0/matroska @ 0x556407921100] video:5317kB audio:191kB subtitle:0kB
other streams:0kB global headers:4kB muxing overhead: 0.264545%
frame= 482 fps= 75 q=-1.0 Lsize= 5523kB time=00:00:20.02
bitrate=2259.5kbits/s speed=3.11x
[libx264 @ 0x55640793d640] frame I:15 Avg QP:18.37 size: 29181
[libx264 @ 0x55640793d640] frame P:307 Avg QP:20.27 size: 14622
[libx264 @ 0x55640793d640] frame B:160 Avg QP:17.28 size: 3236
[libx264 @ 0x55640793d640] consecutive B-frames: 53.5% 5.4% 3.7% 37.3%
[libx264 @ 0x55640793d640] mb I I16..4: 43.4% 53.1% 3.5%
[libx264 @ 0x55640793d640] mb P I16..4: 10.8% 20.1% 0.2% P16..4: 39.2%
3.2% 3.1% 0.0% 0.0% skip:23.3%
[libx264 @ 0x55640793d640] mb B I16..4: 1.8% 2.0% 0.0% B16..8: 13.9%
1.0% 0.1% direct: 3.2% skip:78.0% L0:58.0% L1:41.1% BI: 0.9%
[libx264 @ 0x55640793d640] 8x8 transform intra:62.3% inter:93.8%
[libx264 @ 0x55640793d640] coded y,uvDC,uvAC intra: 27.7% 53.5% 3.0%
inter: 10.0% 27.8% 0.0%
[libx264 @ 0x55640793d640] i16 v,h,dc,p: 29% 33% 17% 21%
[libx264 @ 0x55640793d640] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 19% 46% 2%
2% 2% 3% 2% 2%
[libx264 @ 0x55640793d640] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 27% 21% 3%
6% 5% 7% 3% 2%
[libx264 @ 0x55640793d640] i8c dc,h,v,p: 52% 25% 21% 2%
[libx264 @ 0x55640793d640] Weighted P-Frames: Y:9.1% UV:4.9%
[libx264 @ 0x55640793d640] ref P L0: 41.1% 4.1% 26.2% 26.1% 2.4%
[libx264 @ 0x55640793d640] ref B L0: 55.2% 26.6% 18.2%
[libx264 @ 0x55640793d640] ref B L1: 61.4% 38.6%
[libx264 @ 0x55640793d640] kb/s:2139.92
ffmpeg -c:v h264_cuvid -i input.mkv -c:v libx264 -y output.mkv 59.59s
user 0.61s system 888% cpu 6.777 total
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10668>
FFmpeg <https://ffmpeg.org>
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