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New forum question at:
by Phyllis Smith 27 May '25

27 May '25

https://www.cinelerra-gg.org/forum/forum-hardware/record-from-minidv-hangs-…

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vaapi speedup patch (for ffmpeg.git)
by Andrew Randrianasulu 27 May '25

27 May '25

At some point it hopefully landed in, well, ffmpeg main repo, but for now I manually downloaded mbox and applied with git am to ffmpeg tree. https://patchwork.ffmpeg.org/project/ffmpeg/patch/20250507120326.156062-3-n… makes vaapi 4k hevc hdr decode + opencl filtering go from 6.0 fps to 6.3 fps. ./ffmpeg -hwaccel vaapi -init_hw_device opencl=ocl -filter_hw_device ocl -i ~/K38_sdcard1/Documents/iPhone11_4K-recorder_59.940HDR10.mov -vf "format=p010,hwupload,tonemap_opencl=tonemap=mobius:param=0.01:desat=0:r=tv:p=bt709:t=bt709:m=bt709:format=nv12,hwdownload,format=nv12" -c:a copy -c:s copy -c:v rawvideo -an -f nut /dev/null

1 0

Hwaccel FFV1 decoding and encoding
by Terje J. Hanssen 26 May '25

26 May '25

According to Phoronix 22 May 2025 : * FFmpeg FFV1 Vulkan Encoder Lands +35% Improvement For AMD, +50% For NVIDIA * No word on Intel performance benefits from this Vulkan encode optimization. AFAIK Intel has not yet QSV support for FFV1 either. Any idea which ffmpeg version release ffv1_vulkan will be available ? And which color bit depths will be supported: 8-bit yuv422p and 10-bit yuv422p10le/ y210 ? Speed tests? Terje J. H

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System ffmpeg Vulkan video transcoding fails - while benchmarking works
by Terje Hanssen 26 May '25

26 May '25

I have yet to get my system ffmpeg vulkan video transcoding to work on my machines, while benchmarking works. Therefore I hope get verified if my code line is correct, and how to fix possible syntax errors. ----------------- Dell XPS 13-9370 ultrabook ffmpeg version 7.1.1 built with gcc 14 (SUSE Linux) inxi -CGSz System: Kernel: 6.12.24-1.0.2.sr20250402-longterm arch: x86_64 bits: 64 Desktop: GNOME v: 48.0 Distro: openSUSE Tumbleweed-Slowroll 20250402 CPU: Info: quad core model: Intel Core i7-8550U bits: 64 type: MT MCP cache: L2: 1024 KiB Speed (MHz): avg: 900 min/max: 400/4000 cores: 1: 900 2: 900 3: 900 4: 900 5: 900 6: 900 7: 900 8: 900 Graphics: Device-1: Intel UHD Graphics 620 driver: i915 v: kernel Device-2: Realtek Integrated_Webcam_HD driver: uvcvideo type: USB Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.6 compositor: gnome-shell driver: gpu: i915 resolution: 3840x2160~60Hz API: OpenGL v: 4.6 vendor: intel mesa v: 25.0.3 renderer: Mesa Intel UHD Graphics 620 (KBL GT2) API: Vulkan v: 1.4.309 drivers: N/A surfaces: xcb,xlib,wayland API: EGL Message: EGL data requires eglinfo. Check --recommends. Info: Tools: api: glxinfo,vulkaninfo x11: xprop,xrandr ========================= export VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/intel_icd.x86_64.json export ANV_VIDEO_DECODE=1 export ANV_VIDEO_ENCODE=1 Transcoding fails: ffmpeg -hide_banner -init_hw_device vulkan=vk:0 -filter_hw_device vk -i hdv09_04_h264_qsv_8b420.mp4 -c:v hevc_vulkan test_hevc.mp4 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'hdv09_04_h264_qsv_8b420.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf61.1.100 Duration: 00:03:58.88, start: 0.000000, bitrate: 7671 kb/s Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, smpte170m/unknown/unknown, progressive), 1440x1080 [SAR 4:3 DAR 16:9], 7536 kb/s, 25 fps, 25 tbr, 12800 tbn (default) Metadata: handler_name : VideoHandler vendor_id : [0][0][0][0] Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 129 kb/s (default) Metadata: handler_name : SoundHandler vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> hevc (hevc_vulkan)) Stream #0:1 -> #0:1 (aac (native) -> aac (native)) Press [q] to stop, [?] for help Impossible to convert between the formats supported by the filter 'Parsed_null_0' and the filter 'auto_scale_0' [vf#0:0 @ 0x561e923dd540] Error reinitializing filters! [vf#0:0 @ 0x561e923dd540] Task finished with error code: -38 (Function not implemented) [vf#0:0 @ 0x561e923dd540] Terminating thread with return code -38 (Function not implemented) [vost#0:0/hevc_vulkan @ 0x561e9243b200] Could not open encoder before EOF [vost#0:0/hevc_vulkan @ 0x561e9243b200] Task finished with error code: -22 (Invalid argument) [vost#0:0/hevc_vulkan @ 0x561e9243b200] Terminating thread with return code -22 (Invalid argument) [out#0/mp4 @ 0x561e924a7a00] Nothing was written into output file, because at least one of its streams received no packets. frame= 0 fps=0.0 q=0.0 Lsize= 0KiB time=N/A bitrate=N/A speed=N/A [aac @ 0x561e92cc4f80] Qavg: 208.809 Conversion failed! ===================== Benchmarking works: ffmpeg -hide_banner -init_hw_device "vulkan=vk:0" -hwaccel vulkan -hwaccel_output_format vulkan -i hdv09_04_h264_qsv_8b420.mp4 -f null - -benchmark Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'hdv09_04_h264_qsv_8b420.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf61.1.100 Duration: 00:03:58.88, start: 0.000000, bitrate: 7671 kb/s Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, smpte170m/unknown/unknown, progressive), 1440x1080 [SAR 4:3 DAR 16:9], 7536 kb/s, 25 fps, 25 tbr, 12800 tbn (default) Metadata: handler_name : VideoHandler vendor_id : [0][0][0][0] Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 129 kb/s (default) Metadata: handler_name : SoundHandler vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native)) Stream #0:1 -> #0:1 (aac (native) -> pcm_s16le (native)) Press [q] to stop, [?] for help Output #0, null, to 'pipe:': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf61.7.100 Stream #0:0(und): Video: wrapped_avframe, vulkan(pc, smpte170m/unknown/unknown, progressive), 1440x1080 [SAR 4:3 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 : Lavc61.19.101 wrapped_avframe Stream #0:1(eng): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: handler_name : SoundHandler vendor_id : [0][0][0][0] encoder : Lavc61.19.101 pcm_s16le

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mpeg4 ASP and vaapi
by Andrew Randrianasulu 25 May '25

25 May '25

According to Arch Wiki https://wiki.archlinux.org/title/Hardware_video_acceleration you need MPEG-4 Part 2 is disabled by default due to VAAPI limitations. Set the environment variable <https://wiki.archlinux.org/title/Environment_variable> VAAPI_MPEG4_ENABLED=true to try to use it anyway. I tried with cingg/ffmpeg7 and it seemed to work, but ffmpeg7 had all our patches including patch8

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Vulkan hevc hdr decode regression on ffmpeg master?
by Andrew Randrianasulu 21 May '25

21 May '25

So I was experimenting with Vulkan decoding in cinelerra-gg. After some fight I get build using ffmpeg git commit 038314bc6be2f35a82e9fba2228bcac2e4fee648 for ffmpeg here is bunch of errors like this: [hevc @ 0x6f7465c0] Could not find ref with POC 296 [hevc @ 0x6f7465c0] Error constructing the frame RPS. [hevc @ 0x6f7465c0] Skipping invalid undecodable NALU: 9 [hevc @ 0x6f72ad00] Could not find ref with POC 296 [hevc @ 0x6f72ad00] Error constructing the frame RPS. [hevc @ 0x6f72ad00] Skipping invalid undecodable NALU: 8 [hevc @ 0x6f77b3c0] Could not find ref with POC 298 [hevc @ 0x6f77b3c0] Error constructing the frame RPS. [hevc @ 0x6f77b3c0] Skipping invalid undecodable NALU: 8 [hevc @ 0x6f789480] Could not find ref with POC 300 [hevc @ 0x6f789480] Error constructing the frame RPS. [hevc @ 0x6f789480] Skipping invalid undecodable NALU: 1 [hevc @ 0x6f7465c0] Could not find ref with POC 300 [hevc @ 0x6f7465c0] Error constructing the frame RPS. [hevc @ 0x6f7465c0] Skipping invalid undecodable NALU: 3 [hevc @ 0x6f72ad00] Could not find ref with POC 300 [hevc @ 0x6f72ad00] Error constructing the frame RPS. [hevc @ 0x6f72ad00] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f77b3c0] Could not find ref with POC 302 [hevc @ 0x6f77b3c0] Error constructing the frame RPS. [hevc @ 0x6f77b3c0] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f789480] Could not find ref with POC 304 [hevc @ 0x6f789480] Error constructing the frame RPS. [hevc @ 0x6f789480] Skipping invalid undecodable NALU: 1 [hevc @ 0x6f7465c0] Could not find ref with POC 304 [hevc @ 0x6f7465c0] Error constructing the frame RPS. [hevc @ 0x6f7465c0] Skipping invalid undecodable NALU: 3 [hevc @ 0x6f72ad00] Could not find ref with POC 304 [hevc @ 0x6f72ad00] Error constructing the frame RPS. [hevc @ 0x6f72ad00] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f77b3c0] Could not find ref with POC 306 [hevc @ 0x6f77b3c0] Error constructing the frame RPS. [hevc @ 0x6f77b3c0] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f789480] Could not find ref with POC 308 [hevc @ 0x6f789480] Error constructing the frame RPS. [hevc @ 0x6f789480] Skipping invalid undecodable NALU: 1 [hevc @ 0x6f7465c0] Could not find ref with POC 308 [hevc @ 0x6f7465c0] Error constructing the frame RPS. [hevc @ 0x6f7465c0] Skipping invalid undecodable NALU: 3 [hevc @ 0x6f72ad00] Could not find ref with POC 308 [hevc @ 0x6f72ad00] Error constructing the frame RPS. [hevc @ 0x6f72ad00] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f77b3c0] Could not find ref with POC 310 [hevc @ 0x6f77b3c0] Error constructing the frame RPS. [hevc @ 0x6f77b3c0] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f789480] Could not find ref with POC 312 [hevc @ 0x6f789480] Error constructing the frame RPS. [hevc @ 0x6f789480] Skipping invalid undecodable NALU: 1 [hevc @ 0x6f7465c0] Could not find ref with POC 312 [hevc @ 0x6f7465c0] Error constructing the frame RPS. [hevc @ 0x6f7465c0] Skipping invalid undecodable NALU: 3 [hevc @ 0x6f72ad00] Could not find ref with POC 312 [hevc @ 0x6f72ad00] Error constructing the frame RPS. [hevc @ 0x6f72ad00] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f77b3c0] Could not find ref with POC 314 [hevc @ 0x6f77b3c0] Error constructing the frame RPS. [hevc @ 0x6f77b3c0] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f789480] Could not find ref with POC 316 [hevc @ 0x6f789480] Error constructing the frame RPS. [hevc @ 0x6f789480] Skipping invalid undecodable NALU: 1 [hevc @ 0x6f7465c0] Could not find ref with POC 316 [hevc @ 0x6f7465c0] Error constructing the frame RPS. [hevc @ 0x6f7465c0] Skipping invalid undecodable NALU: 3 [hevc @ 0x6f72ad00] Could not find ref with POC 316 [hevc @ 0x6f72ad00] Error constructing the frame RPS. [hevc @ 0x6f72ad00] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f77b3c0] Could not find ref with POC 318 [hevc @ 0x6f77b3c0] Error constructing the frame RPS. [hevc @ 0x6f77b3c0] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f789480] Could not find ref with POC 320 [hevc @ 0x6f789480] Error constructing the frame RPS. [hevc @ 0x6f789480] Skipping invalid undecodable NALU: 1 [hevc @ 0x6f7465c0] Could not find ref with POC 320 [hevc @ 0x6f7465c0] Error constructing the frame RPS. [hevc @ 0x6f7465c0] Skipping invalid undecodable NALU: 3 [hevc @ 0x6f72ad00] Could not find ref with POC 320 [hevc @ 0x6f72ad00] Error constructing the frame RPS. [hevc @ 0x6f72ad00] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f77b3c0] Could not find ref with POC 322 [hevc @ 0x6f77b3c0] Error constructing the frame RPS. [hevc @ 0x6f77b3c0] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f789480] Could not find ref with POC 324 [hevc @ 0x6f789480] Error constructing the frame RPS. [hevc @ 0x6f789480] Skipping invalid undecodable NALU: 1 [hevc @ 0x6f7465c0] Could not find ref with POC 324 [hevc @ 0x6f7465c0] Error constructing the frame RPS. [hevc @ 0x6f7465c0] Skipping invalid undecodable NALU: 3 [hevc @ 0x6f72ad00] Could not find ref with POC 324 [hevc @ 0x6f72ad00] Error constructing the frame RPS. [hevc @ 0x6f72ad00] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f77b3c0] Could not find ref with POC 326 [hevc @ 0x6f77b3c0] Error constructing the frame RPS. [hevc @ 0x6f77b3c0] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f789480] Could not find ref with POC 328 [hevc @ 0x6f789480] Error constructing the frame RPS. [hevc @ 0x6f789480] Skipping invalid undecodable NALU: 1 [hevc @ 0x6f7465c0] Could not find ref with POC 328 [hevc @ 0x6f7465c0] Error constructing the frame RPS. [hevc @ 0x6f7465c0] Skipping invalid undecodable NALU: 3 [hevc @ 0x6f72ad00] Could not find ref with POC 328 [hevc @ 0x6f72ad00] Error constructing the frame RPS. [hevc @ 0x6f72ad00] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f77b3c0] Could not find ref with POC 330 [hevc @ 0x6f77b3c0] Error constructing the frame RPS. [hevc @ 0x6f77b3c0] Skipping invalid undecodable NALU: 2 [hevc @ 0x6f789480] Could not find ref with POC 332 [hevc @ 0x6f789480] Error constructing the frame RPS. [hevc @ 0x6f789480] Skipping invalid undecodable NALU: 1 [hevc @ 0x6f7465c0] Could not find ref with POC 332 [hevc @ 0x6f7465c0] Error constructing the frame RPS. [hevc @ 0x6f7465c0] Skipping invalid undecodable NALU: 3 file itself: https://drive.google.com/file/d/1Ic9DZXMSo07EJMqCFaQRKSSrSw6y1mYv/view But I see some kind of first frame corruption I never saw on 7.0 build https://paste.pics/860707666060d195485e07ea7b057ce8 and speed kinda down from 58 fps to just 50-51 relative to ffmpeg libs 7.0? hw: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Lexa PRO [Radeon 540/540X/550/550X / RX 540X/550/550X] (rev c7) mesa: OpenGL renderer string: AMD Radeon RX 550 / 550 Series (radeonsi, polaris12, ACO, DRM 3.61, 6.12.26-x64) OpenGL core profile version string: 4.6 (Core Profile) Mesa 25.2.0-devel (git-ef63e3e4d2) cingg home git: git://git.cinelerra-gg.org/goodguy/cinelerra.git I set two evn. variables specific to my system, but mostly I wanted to get libplacebo and libzimg for HDR->SDR conversion EXTRA_LIBS := -lOpenCL -lSvtAv1Enc -lvpl -ldav1d -lxvidcore -lass -lbluray -lsnappy -lzimg -lplacebo -lshaderc_shared -lnuma -lva -lva-x11 `pkg-config --libs x11` -lva-drm -ldl FFMPEG_EXTRA_CFG := --enable-libvpl --disable-doc --enable-opencl --enable-libsvtav1 --enable-frei0r --enable-libdav1d --enable-libzimg --enable-libxvid --enable-libass --enable-libbluray --enable-libsnappy --enable-libshaderc --enable-libplacebo --enable-vulkan --disable-debug --extra-cflags=-I/usr/local/include/vpl --extra-cflags=-I/usr/include/svt-av1 --extra-ldflags=" -lva `pkg-config --libs libva` -lva-x11 -lva-drm -ldl" cingg configure: ./configure --with-git-ffmpeg=https://git.ffmpeg.org/ffmpeg.git --with-single-user --enable-libsvtav1 --disable-dav1d I used bunch of patches (attached, done by Phyllis and me) and manually removed posprocess.a ref. from our configure.ac for now there is still some problem with attaching ffmpeg filters per-input-file, but main Vulkan decode problem still visible without any filters I run just-compiled cin binary like this: RADV_PERFTEST=video_decode bin/cin ~/K38_sdcard1/Documents/iPhone11_4K-recorder_59.940HDR10.mov and got corruption as visible on screenshot at the start of this email Playing image forward cleans up this corruption, but returning to timeline beginning bring it back.

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Offtopic: MovieShop from ~1998!
by Andrew Randrianasulu 18 May '25

18 May '25

You rarely see this Amiga software in action, but there seems to be few longer recordings of it on this channel https://m.youtube.com/watch?v=gNS6TxrK_NU

2 1

brender_delete_tmp.sh install fix
by Andrew Randrianasulu 17 May '25

17 May '25

I think while this script was added as default shell command it was never installed. Attached patch fixes this. Can anyone test please? ;)

2 3

FranceBB's LUT collection
by Andrew Randrianasulu 16 May '25

16 May '25

forum https://forum.doom9.org/showthread.php?t=176091 it says those LUTs should be usable for ffmpeg's lut3d and therefore for CinGG? github (each *.cube can be several mb's big) https://github.com/FranceBB/LinearTransformation author says they were verified on professional equipment... list includes PAL and NTSC variants for rec. 601....

3 6

Filter initialization change in git relative to 7.0?
by Andrew Randrianasulu 14 May '25

14 May '25

Even if our code compiles it does not work anymore ... [out @ 0xe1821180] Option 'pix_fmts' is not a runtime option and so cannot be set after the object has been initialized int ret = 0; char args[BCTEXTLEN]; AVPixelFormat pix_fmt = (AVPixelFormat)avpar->format; snprintf(args, sizeof(args), "video_size=%dx%d:pix_fmt=%i:time_base=%d/%d:pixel_aspect=%d/%d", avpar->width, avpar->height,(int)pix_fmt, st->time_base.num, st->time_base.den, sa_num, sa_den); if( ret >= 0 ) { filt_ctx = 0; ret = insert_filter("buffer", args, "in"); buffersrc_ctx = filt_ctx; } if( ret >= 0 ) ret = flip(theta); AVFilterContext *fsrc = filt_ctx; if( ret >= 0 ) { filt_ctx = 0; ret = insert_filter("buffersink", 0, "out"); buffersink_ctx = filt_ctx; } if( ret >= 0 ) { ret = av_opt_set_bin(buffersink_ctx, "pix_fmts", (uint8_t*)&pix_fmt, sizeof(pix_fmt), AV_OPT_SEARCH_CHILDREN); } if( ret >= 0 ) ret = config_filters(filter_spec, fsrc); else ff_err(ret, "FFVideoStream::create_filter"); return ret >= 0 ? 0 : -1; ========= There is no video filtering example in doc/examples. How I supposed to know what should be put there now?

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