Den 28.04.2025 17:38, skrev Andrew Randrianasulu:


пн, 28 апр. 2025 г., 17:20 Terje J. Hanssen <terjejhanssen@gmail.com>:

Den 27.04.2025 23:39, skrev Andrew Randrianasulu:


вс, 27 апр. 2025 г., 23:58 Terje J. Hanssen <terjejhanssen@gmail.com>:

Den 26.04.2025 22:37, skrev Andrew Randrianasulu via Cin:
RADV_PERFTEST=video_decode,video_encode time -p ./ffmpeg  -init_hw_device vulkan=vulkan -filter_hw_device vulkan   -hwaccel vulkan  -i ~/K38_sdcard1/Documents/iPhone11_4K-recorder_59.940HDR10.mov -vf  libplacebo=w=1920:h=1080:force_original_aspect_ratio=decrease:normalize_sar=true:upscaler=ewa_lanczos:downscaler=ewa_lanczos:colorspace=bt709:color_primaries=bt709:color_trc=bt709:range=tv  -c:a copy -c:v libx264  -f mp4 -benchmark /dev/shm/ffmpeg-git-libplacebo-vulkan-2k.mp4                                                                                         

frame= 1148 fps= 10 q=-1.0 Lsize=   30435KiB time=00:00:19.13 bitrate=13029.3kbits/s speed=0.167x                                                                                                     
bench: utime=355.600s stime=25.878s rtime=114.342s

so nearly 10 fps with scaled to FHD input! (otherwise 32bit x264 OOMs)

==================

I admit I'm not sure what's going on in every detail above and below. But I've tried to adapt something similar or equivalent (?) using my Google Pixel 7 Pro smartphone to record a small HDR10 video clip, and then using ffmpeg on my Intel Alder Lake cpu/DG2 gpu workstation. Comments are welcome for correction and learning?

Well, 125 fps sounds fast ;)

This line tries to convert HDR video to SDR version, same size (for your case) but it now 10bit h264 instead of 10bit h265.

You probably can add format=yuv420p before all other -vf liblacebo options so resulting file will be more compatible 8bit h264.

You can try to watch both vids side by side, I think mpv uses same algorithm as libplacebo, so on SDR screen results must look close to each other?



I tried also to convert adding -vf format=yuv420p,

sorry, I mean 

 -i ~/K38_sdcard1/Documents/iPhone11_4K-recorder_59.940HDR10.mov -vf  libplacebo=format=yuv444p:w=1920:h=1080:force_original_aspect_ratio=decrease:normalize_sar=true:upscaler=ewa_lanczos:downscaler=ewa_lanczos:colorspace=bt709:color_primaries=bt709:color_trc=bt709:range=tv

format as part of -vf libplacebo string, not separate ffmpeg filter.



but both the 10bit and 8bit output files are distorted when playback with vlc, mpv or ffplay.
In comparison testing with my highest ProRes hq 10bit video file as input (not HDR), the output mp4 file looks fine with the same ffmpeg code line.

Was there a download site with small HDR10 test clips available, so we can test and compare using the same input?

No clips themselves, but wiki with links to them 

https://kodi.wiki/view/Samples

I used

Apple "special" clip

"HDR10 HEVC 59.94 (MOV, @hdmkv's iPhone 11 Pro Max raw 4K footage using 4K HDR Video Recorder app)"

https://drive.google.com/file/d/1Ic9DZXMSo07EJMqCFaQRKSSrSw6y1mYv/view?usp=sharing

================

For some reasons, the conversions work fine when I leave out the export of environment variables:

env | egrep -i "ANV|vulkan"


a) HDR10 UHD/4k --> SDR FHD/2k
-------------------------------

Downloaded the inpput testfile from
"HDR10 HEVC 59.94 (MOV, @hdmkv's iPhone 11 Pro Max raw 4K footage using 4K
HDR Video Recorder app)"
https://drive.google.com/file/d/1Ic9DZXMSo07EJMqCFaQRKSSrSw6y1mYv/view?usp=sharing

time -p ffmpeg -hide_banner -init_hw_device vulkan=vulkan -filter_hw_device vulkan -hwaccel vulkan  -i iPhone11_4K-recorder_59.940HDR10.mov -vf libplacebo=w=1920:h=1080:force_original_aspect_ratio=decrease:normalize_sar=true:upscaler=ewa_lanczos:downscaler=ewa_lanczos:colorspace=bt709:color_primaries=bt709:color_trc=bt709:range=tv  -c:a copy -c:v libx264  -f mp4 -benchmark ffmpeg-libplacebo-iPhone11_4K-recorder_59.940HDR10.mp4

frame= 1148 fps= 86 q=-1.0 Lsize=   32501KiB time=00:00:19.13 bitrate=13913.6kbits/s speed=1.43x    
bench: utime=235.787s stime=2.261s rtime=13.349s
bench: maxrss=3259684KiB
real 13,45
user 235,84
sys 2,30


b) HDR FHD/2k --> SDR FHD/2k
-----------------------------

Recorded input video test clip with Pixel 7 Pro smartphone

time -p ffmpeg -hide_banner -init_hw_device vulkan=vulkan -filter_hw_device vulkan -hwaccel vulkan  -i PXL_20250427_195356771.TS.mp4 -vf libplacebo=w=1920:h=1080:force_original_aspect_ratio=decrease:normalize_sar=true:upscaler=ewa_lanczos:downscaler=ewa_lanczos:colorspace=bt709:color_primaries=bt709:color_trc=bt709:range=tv  -c:a copy -c:v libx264  -f mp4 -benchmark ffmpeg-libplacebo-PXL_20250427_195356771.mp4

frame=  209 fps=104 q=-1.0 Lsize=    2862KiB time=00:00:06.90 bitrate=3398.0kbits/s speed=3.44x    
bench: utime=27.177s stime=0.512s rtime=2.007s
bench: maxrss=2327544KiB
real 4,96
user 27,24
sys 0,54


du -sh *
32M    ffmpeg-libplacebo-iPhone11_4K-recorder_59.940HDR10.mp4
2,8M    ffmpeg-libplacebo-PXL_20250427_195356771.mp4
158M    iPhone11_4K-recorder_59.940HDR10.mov
17M    PXL_20250427_195356771.TS.mp4

=============================

and less demanding (but still slideshow w/o hw acceleration!)

"HDR10+ Profile B HEVC 10-bit 23.976 Sample (MKV with EAC-3 JOC ATMOS audio)"

https://mega.nz/file/nehDka6Z#C5_OPbSZkONdOp1jRmc09C9-viDc3zMj8ZHruHcWKyA




time -p ffmpeg -hide_banner  -init_hw_device vulkan=vulkan -filter_hw_device vulkan -hwaccel vulkan  -i PXL_20250427_195356771.TS.mp4 -vf format=yuv420p,libplacebo=w=1920:h=1080:force_original_aspect_ratio=decrease:normalize_sar=true:upscaler=ewa_lanczos:downscaler=ewa_lanczos:colorspace=bt709:color_primaries=bt709:color_trc=bt709:range=tv  -c:a copy -c:v libx264  -f mp4 -benchmark ffmpeg-libplacebo-PXL_20250427_195356771.TS.mp4
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x56364496c680] All samples in data stream index:id [3:4] have zero duration, stream set to be discarded by default. Override using AVStream->discard or -discard for ffmpeg command.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'PXL_20250427_195356771.TS.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 131072
    compatible_brands: isomiso2mp41
    creation_time   : 2025-04-27T19:54:05.000000Z
    SpecialTypeID   : com.google.android.apps.camera.gallery.specialtype.SpecialType-AMETHYST
    com.android.capture.fps: 30.000000
    com.android.model: Pixel 7 Pro
    com.android.manufacturer: Google
  Duration: 00:00:06.97, start: 0.000000, bitrate: 20255 kb/s
  Stream #0:0[0x1](eng): Data: none (mett / 0x7474656D), 47 kb/s (default)
      Metadata:
        creation_time   : 2025-04-27T19:54:05.000000Z
        handler_name    : MetaHandle
  Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
      Metadata:
        creation_time   : 2025-04-27T19:54:05.000000Z
        handler_name    : SoundHandle
        vendor_id       : [0][0][0][0]
  Stream #0:2[0x3](eng): Video: hevc (Main 10) (hvc1 / 0x31637668), yuv420p10le(tv, bt2020nc/bt2020/arib-std-b67), 1920x1080, 20010 kb/s, SAR 1:1 DAR 16:9, 29.99 fps, 30 tbr, 90k tbn (default)
      Metadata:
        creation_time   : 2025-04-27T19:54:05.000000Z
        handler_name    : VideoHandle
        vendor_id       : [0][0][0][0]
  Stream #0:3[0x4](eng): Data: none (mett / 0x7474656D) (default)
      Metadata:
        creation_time   : 2025-04-27T19:54:05.000000Z
        handler_name    : MetaHandle
File 'ffmpeg-libplacebo-PXL_20250427_195356771.TS.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:2 -> #0:0 (hevc (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
MESA-INTEL: warning: ../src/intel/vulkan/anv_formats.c:834: FINISHME: support more multi-planar formats with DRM modifiers
[libx264 @ 0x563644986d40] using SAR=1/1
[libx264 @ 0x563644986d40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x563644986d40] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x563644986d40] 264 - core 164 - 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=30 lookahead_threads=5 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=25 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, mp4, to 'ffmpeg-libplacebo-PXL_20250427_195356771.TS.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 131072
    compatible_brands: isomiso2mp41
    com.android.manufacturer: Google
    SpecialTypeID   : com.google.android.apps.camera.gallery.specialtype.SpecialType-AMETHYST
    com.android.capture.fps: 30.000000
    com.android.model: Pixel 7 Pro
    encoder         : Lavf61.7.100
  Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 30 fps, 15360 tbn (default)
      Metadata:
        creation_time   : 2025-04-27T19:54:05.000000Z
        handler_name    : VideoHandle
        vendor_id       : [0][0][0][0]
        encoder         : Lavc61.19.101 libx264
      Side data:
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
      Metadata:
        creation_time   : 2025-04-27T19:54:05.000000Z
        handler_name    : SoundHandle
        vendor_id       : [0][0][0][0]
[out#0/mp4 @ 0x56364496f940] video:3480KiB audio:163KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.242542%
frame=  209 fps=116 q=-1.0 Lsize=    3651KiB time=00:00:06.90 bitrate=4335.2kbits/s speed=3.83x    
bench: utime=14.435s stime=0.739s rtime=1.804s
bench: maxrss=1455376KiB
[libx264 @ 0x563644986d40] frame I:2     Avg QP:18.68  size:105708
[libx264 @ 0x563644986d40] frame P:66    Avg QP:23.77  size: 32017
[libx264 @ 0x563644986d40] frame B:141   Avg QP:31.40  size:  8783
[libx264 @ 0x563644986d40] consecutive B-frames:  7.2%  6.7%  5.7% 80.4%
[libx264 @ 0x563644986d40] mb I  I16..4: 32.3% 25.8% 41.9%
[libx264 @ 0x563644986d40] mb P  I16..4:  0.4%  0.5%  1.2%  P16..4: 16.7%  8.0%  5.6%  0.0%  0.0%    skip:67.5%
[libx264 @ 0x563644986d40] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 12.9%  4.5%  1.4%  direct: 1.8%  skip:79.2%  L0:46.1% L1:47.2% BI: 6.8%
[libx264 @ 0x563644986d40] 8x8 transform intra:23.8% inter:36.3%
[libx264 @ 0x563644986d40] coded y,uvDC,uvAC intra: 56.1% 64.0% 50.1% inter: 6.8% 6.4% 2.8%
[libx264 @ 0x563644986d40] i16 v,h,dc,p: 53% 44%  2%  1%
[libx264 @ 0x563644986d40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 43% 16% 16%  2%  1%  0%  0%  0% 21%
[libx264 @ 0x563644986d40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 56% 12%  1%  1%  1%  1%  1%  7%
[libx264 @ 0x563644986d40] i8c dc,h,v,p: 42% 45% 13%  1%
[libx264 @ 0x563644986d40] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x563644986d40] ref P L0: 68.8%  8.1% 12.7% 10.4%
[libx264 @ 0x563644986d40] ref B L0: 88.9%  8.3%  2.8%
[libx264 @ 0x563644986d40] ref B L1: 94.5%  5.5%
[libx264 @ 0x563644986d40] kb/s:4091.33
real 4,76
user 14,49
sys 0,77