#11509: Failed setup for format videotoolbox_vld - Video Decoding (H264 yuv420p)
-------------------------------------+-------------------------------------
Reporter: David | Type: defect
Franco |
Status: new | Priority: normal
Component: avcodec | Version: git-
Keywords: | master
videotoolbox | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
**Summary of the bug:**
This bug can be reproduced in both the 5.4 and the latest ffmpeg version.
While trying to decode the video time_cut.mp4 (I transmuxed this and cut
it to 5s to prevent copyright issues), the videotoolbox hardware
acceleration fails to initialize.
The video specs are:
* H264
* 1920x1080
* yuv420p
* The video contains some NON-IDR I Frames
My system specs are:
* Mac Book Pro 2022
* Apple M2
* 16GB
* Sonoma 14.1
I tried this video with VLC and it also produces a "vt session error:
'kVTVideoDecoderMalfunctionErr'" in the logs.
The decoding by CPU works as it should.
I am unaware if this is an issue with the parameters passed to the decoder
or a videotoolbox library issue. I apologize if it's the last one.
Video download:
https://drive.google.com/file/d/1IxTyGoVCJ8EQEbyhyZRBKyokZB4ioMBm/view?usp=sharing
**How to reproduce:**
{{{
% ./ffmpeg -hwaccel videotoolbox -i time_cut.mp4 -f null -
ffmpeg version 7.1 Copyright (c) 2000-2024 the FFmpeg developers
built with Apple clang version 13.1.6 (clang-1316.0.21.2.5)
configuration: --prefix=/Volumes/tempdisk/sw --extra-cflags=-fno-stack-
check --arch=arm64 --cc=/usr/bin/clang --enable-gpl --enable-libvmaf
--enable-libopenjpeg --enable-libopus --enable-libmp3lame --enable-libx264
--enable-libx265 --enable-libvpx --enable-libwebp --enable-libass
--enable-libfreetype --enable-fontconfig --enable-libtheora --enable-
libvorbis --enable-libsnappy --enable-libaom --enable-libvidstab --enable-
libzimg --enable-libsvtav1 --enable-libharfbuzz --enable-libkvazaar --pkg-
config-flags=--static --enable-ffplay --enable-postproc --enable-neon
--enable-runtime-cpudetect --disable-indev=qtkit --disable-
indev=x11grab_xcb
libavutil 59. 39.100 / 59. 39.100
libavcodec 61. 19.100 / 61. 19.100
libavformat 61. 7.100 / 61. 7.100
libavdevice 61. 3.100 / 61. 3.100
libavfilter 10. 4.100 / 10. 4.100
libswscale 8. 3.100 / 8. 3.100
libswresample 5. 3.100 / 5. 3.100
libpostproc 58. 3.100 / 58. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'time_cut.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomdby1iso2avc1mp41
encoder : Lavf61.7.100
Duration: 00:00:05.02, start: 0.000000, bitrate: 12240 kb/s
Stream #0:0[0x1](und): Video: h264 (Main) (avc1 / 0x31637661),
yuv420p(tv), 1920x1080 [SAR 1:1 DAR 16:9], 12097 kb/s, 25 fps, 25 tbr, 16k
tbn (default)
Metadata:
handler_name : VideoHandler
vendor_id : [0][0][0][0]
Stream #0:1[0x2](chi): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, stereo,
fltp, 192 kb/s (default)
Metadata:
handler_name : SoundHandler
vendor_id : [0][0][0][0]
Side data:
audio service type: main
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native))
Stream #0:1 -> #0:1 (ac3 (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
[h264 @ 0x159606140] Failed setup for format videotoolbox_vld: hwaccel
initialisation returned error.
Output #0, null, to 'pipe:':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomdby1iso2avc1mp41
encoder : Lavf61.7.100
Stream #0:0(und): Video: wrapped_avframe, yuv420p(tv, top coded first
(swapped)), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn
(default)
Metadata:
handler_name : VideoHandler
vendor_id : [0][0][0][0]
encoder : Lavc61.19.100 wrapped_avframe
Stream #0:1(chi): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
(default)
Metadata:
handler_name : SoundHandler
vendor_id : [0][0][0][0]
encoder : Lavc61.19.100 pcm_s16le
Side data:
audio service type: main
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11509>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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