[FFmpeg-trac] #11506(undetermined:new): FFMPEG's AV1 hardware decoding is completely broken on Mac
FFmpeg
trac at avcodec.org
Thu Mar 13 10:38:31 EET 2025
#11506: FFMPEG's AV1 hardware decoding is completely broken on Mac
-------------------------------------+-------------------------------------
Reporter: Jaden | Type: defect
LeMieux |
Status: new | Priority: important
Component: | Version: git-
undetermined | master
Keywords: | Blocked By:
videotoolbox av1 macos mkv |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
This is the latest build that I got from here: https://evermeet.cx/ffmpeg/
- The ones on the left.
I did ./ffplay [input file], and my video played, however it was EXTREMELY
CHOPPY, and stops a few seconds in because the SOFTWARE DECODER cannot
keep up.
The problem here is this M4 Pro MacBook Pro has AV1 decoding hardware, and
ffmpeg is just not using it by default for some reason.
Ok, time to make it do what it should do in the first place!
./ffplay -hwaccel videotoolbox [input file]
Nope! Still doesn't work, I get even less than before. It seems only the
audio plays correctly, the video is... I don't even know really. It looks
kind of like a spectogram. The video likely just failed.
Here's what it gave me:
Last login: Thu Mar 13 01:24:56 on ttys000
jaden at PureSlate ~ % cd Downloads
jaden at PureSlate Downloads % ./ffplay
/Volumes/Nitor/_RENDERS/BeatMinecraftStreamArchive2025.mkv
ffplay version N-118608-g25c439296b-tessus https://evermeet.cx/ffmpeg/
Copyright (c) 2003-2025 the FFmpeg developers
built with Apple clang version 16.0.0 (clang-1600.0.26.6)
configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-
version=tessus --enable-avisynth --enable-fontconfig --enable-gpl
--enable-libaom --enable-libass --enable-libbluray --enable-libdav1d
--enable-libfreetype --enable-libgsm --enable-libharfbuzz --enable-
libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-
amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg
--enable-libopus --enable-librubberband --enable-libshine --enable-
libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264
--enable-libx265 --enable-libxavs --enable-libxml2 --enable-libxvid
--enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-
config-flags=--static --enable-librtmp --enable-ffplay --enable-sdl2
--disable-ffmpeg --disable-ffprobe
libavutil 59. 58.100 / 59. 58.100
libavcodec 61. 33.102 / 61. 33.102
libavformat 61. 9.107 / 61. 9.107
libavdevice 61. 4.100 / 61. 4.100
libavfilter 10. 9.100 / 10. 9.100
libswscale 8. 13.100 / 8. 13.100
libswresample 5. 4.100 / 5. 4.100
libpostproc 58. 4.100 / 58. 4.100
Input #0, matroska,webm, from
'/Volumes/Nitor/_RENDERS/BeatMinecraftStreamArchive2025.mkv':
Metadata:
TIMECODE : 00:00:00:00
creation_time : 2025-03-12T02:49:53.000000Z
ENCODER : Lavf60.3.100
Duration: 05:14:52.45, start: 0.000000, bitrate: 107566 kb/s
Stream #0:0: Video: av1 (libdav1d) (Main), yuv420p(tv, bt709,
progressive), 3840x2160, 60 fps, 60 tbr, 1k tbn
Metadata:
ENCODER : AV1 8-bit - NVIDIA
DURATION : 05:14:52.450000000
Stream #0:1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
(default)
Metadata:
DURATION : 05:14:52.450000000
2025-03-13 01:30:59.590 ffplay[15981:3366776] +[IMKClient subclass]: chose
IMKClient_Modern
8.25 A-V: -1.594 fd= 243 aq= 0KB vq=15937KB sq= 0B
jaden at PureSlate Downloads % ./ffplay -hwaccel videotoolbox
/Volumes/Nitor/_RENDERS/BeatMinecraftStreamArchive2025.mkv
ffplay version N-118608-g25c439296b-tessus https://evermeet.cx/ffmpeg/
Copyright (c) 2003-2025 the FFmpeg developers
built with Apple clang version 16.0.0 (clang-1600.0.26.6)
configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-
version=tessus --enable-avisynth --enable-fontconfig --enable-gpl
--enable-libaom --enable-libass --enable-libbluray --enable-libdav1d
--enable-libfreetype --enable-libgsm --enable-libharfbuzz --enable-
libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-
amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg
--enable-libopus --enable-librubberband --enable-libshine --enable-
libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264
--enable-libx265 --enable-libxavs --enable-libxml2 --enable-libxvid
--enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-
config-flags=--static --enable-librtmp --enable-ffplay --enable-sdl2
--disable-ffmpeg --disable-ffprobe
libavutil 59. 58.100 / 59. 58.100
libavcodec 61. 33.102 / 61. 33.102
libavformat 61. 9.107 / 61. 9.107
libavdevice 61. 4.100 / 61. 4.100
libavfilter 10. 9.100 / 10. 9.100
libswscale 8. 13.100 / 8. 13.100
libswresample 5. 4.100 / 5. 4.100
libpostproc 58. 4.100 / 58. 4.100
Enable vulkan renderer to support hwaccel videotoolbox
Doesn't support vulkan renderer, fallback to SDL renderer
Input #0, matroska,webm, from
'/Volumes/Nitor/_RENDERS/BeatMinecraftStreamArchive2025.mkv':
Metadata:
TIMECODE : 00:00:00:00
creation_time : 2025-03-12T02:49:53.000000Z
ENCODER : Lavf60.3.100
Duration: 05:14:52.45, start: 0.000000, bitrate: 107566 kb/s
Stream #0:0: Video: av1 (libdav1d) (Main), yuv420p(tv, bt709,
progressive), 3840x2160, 60 fps, 60 tbr, 1k tbn
Metadata:
ENCODER : AV1 8-bit - NVIDIA
DURATION : 05:14:52.450000000
Stream #0:1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
(default)
Metadata:
DURATION : 05:14:52.450000000
Vulkan renderer is not available
2025-03-13 01:33:26.094 ffplay[15984:3368360] +[IMKClient subclass]: chose
IMKClient_Modern
5.37 M-A: 0.000 fd= 0 aq= 197KB vq= 0KB sq= 0B
jaden at PureSlate Downloads %
Did anyone EVER test this crap - I know this was likely tested by someone,
but they obviously didn't do a great job because if it doesn't work on a 1
Mac, it likely doesn't work on any of em, and there's only so many models
that have this functionality to begin with.. and this is what is holding
back everyone else like IINA and VLC for AV1 decoding support on Apple
Silicon.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11506>
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