January 2024 - Cin - Cinelerra-GG Mailing Lists

document setformat's W/H ratio fields
by Andrew Randrianasulu 09 Jan '24

09 Jan '24

As just plain text message and code comment.

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flac.webm profile does not work anymore?
by Andrew Randrianasulu 08 Jan '24

08 Jan '24

Looking at Terje's problem with libvorbis audio I noticed flac.webm profile does not work, and ffmpeg 4.4.4 already complaining you can't put flac audio in webm. So, I guess we better to remove this profile?

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SAR, DAR, PAR - oh, my!
by Andrew Randrianasulu 08 Jan '24

08 Jan '24

Apparently, ffmpeg uses SAR (sample aspect ratio) as fundamental metric. Cingg's aspect_ratio variable in asset.h is DISPLAY aspect ratio, so we try to work out DAR from sample_aspect_ratio provided by ffmpeg and (coded) dimensions https://stackoverflow.com/questions/69560311/confused-about-parpixel-aspect… ==== SAR and PAR are the same. sample is the generic term for the elementary "particles" of media. pixel is specific to video, whereas audio has sample. sample aspect ratio is the term used in modern video codec standards. The only equation to know is SAR * width / height = DAR. ==== we do not display sar/dar in our asset info, I guess we better to! in ffmpeg.C AVRational FFMPEG::to_sample_aspect_ratio(Asset *asset) { #if 1 double display_aspect = asset->width / (double)asset->height; double sample_aspect = display_aspect / asset->aspect_ratio; int width = 1000000, height = width * sample_aspect + 0.5; float w, h; MWindow::create_aspect_ratio(w, h, width, height); return (AVRational){(int)w, (int)h}; -====- and -====- vid->length = secs * vid->frame_rate; vid->aspect_ratio = (double)st->sample_aspect_ratio.num / st->sample_aspect_ratio.den; vid->nudge = st->start_time; -===-- May be this line needs correcting ? (on decoding) -===-- float FFMPEG::ff_aspect_ratio(int stream) { //return ffvideo[stream]->aspect_ratio; AVFormatContext *fmt_ctx = ffvideo[stream]->fmt_ctx; AVStream *strm = ffvideo[stream]->st; AVCodecParameters *par = ffvideo[stream]->st->codecpar; AVRational dar; AVRational sar = av_guess_sample_aspect_ratio(fmt_ctx, strm, NULL); if (sar.num && ffvideo[stream]->get_rotation_angle() == 0) { av_reduce(&dar.num, &dar.den, par->width * sar.num, par->height * sar.den, 1024*1024); return av_q2d(dar); } return ffvideo[stream]->aspect_ratio; } -==-- I copied it from ffmpeg. there is plenty of more complex explanations, for example at https://lurkertech.com/lg/pixelaspect/ But I think for now we better to concentrate on what ffmpeg gives and takes.

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OT: another DVD player emulator
by Andrew Randrianasulu 08 Jan '24

08 Jan '24

not exactly video player, more like interactive game console using dvd discs .... https://github.com/andkrau/NuanceResurrection/tree/master forum: https://www.thehelper.net/forums/official-nuon-dome-nuon-discussion.80/ as far as I understand it was some kind of multi-processor machine, with weird instruction set. with literally handful of titles ever released .... yet its emulator lives on! found via vogons forum.

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PCSX2 DVD playback
by Andrew Randrianasulu 07 Jan '24

07 Jan '24

https://github.com/PCSX2/pcsx2/issues/1981 according to end of this issue it should work now, at least partially. New toy for me :) I think ps2 was more like those early embedded custom platform players than purely software things like xine/vlc. but we will see ....

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ffmpeg raw dv profiles patch
by Andrew Randrianasulu 05 Jan '24

05 Jan '24

Just for testing my aspect ratio patch series ... It makes funny dv out of HDV with two channel of audio: mediainfo /dev/shm/dv.dv General Complete name : /dev/shm/dv.dv Format : DV Commercial name : DVCPRO HD File size : 322 MiB Frame rate : 25.000 FPS Recorded date : 1970-01-01 00:00:00.000 Video Format : DV Commercial name : DVCPRO HD Width : 1 440 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 25.000 FPS Standard : PAL Color space : YUV Scan type : Interlaced Scan order : Bottom Field First Compression mode : Lossy Time code of first frame : 00:00:00:00 Time code source : Subcode time code Audio #1 ID : 0 Format : PCM Format settings : Big / Signed Bit rate mode : Constant Bit rate : 768 kb/s Channel(s) : 1 channel Sampling rate : 48.0 kHz Bit depth : 16 bits Audio #2 ID : 1 Format : PCM Format settings : Big / Signed Bit rate mode : Constant Bit rate : 768 kb/s Channel(s) : 1 channel Sampling rate : 48.0 kHz Bit depth : 16 bits Audio #3 ID : 2 Format : PCM Format settings : Big / Signed Bit rate mode : Constant Bit rate : 768 kb/s Channel(s) : 1 channel Sampling rate : 48.0 kHz Bit depth : 16 bits Audio #4 ID : 3 Format : PCM Format settings : Big / Signed Bit rate mode : Constant Bit rate : 768 kb/s Channel(s) : 1 channel Sampling rate : 48.0 kHz Bit depth : 16 bits ffprobe says: ffprobe /dev/shm/dv.dv ffprobe version 4.4.4 Copyright (c) 2007-2023 the FFmpeg developers built with gcc 11.2.0 (GCC) configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --docdir=/usr/doc/ffmpeg-4.4.4/html --mandir=/usr/man --disable-debug --enable-shared --disable-static --enable-gpl --enable-version3 --enable-avresample --arch=i586 --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-gnutls --enable-libass --enable-libbluray --enable-libcdio --enable-frei0r --enable-libgsm --enable-openal --enable-libopus --enable-librtmp --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzmq --enable-libmp3lame --enable-opencl --enable-opengl --enable-libopenjpeg --disable-libpulse --enable-libsmbclient --enable-libsvtav1 --enable-libxml2 --enable-librsvg --enable-libdrm --enable-libaom --enable-libdav1d --enable-libsoxr --enable-libzimg --enable-vapoursynth libavutil 56. 70.100 / 56. 70.100 libavcodec 58.134.100 / 58.134.100 libavformat 58. 76.100 / 58. 76.100 libavdevice 58. 13.100 / 58. 13.100 libavfilter 7.110.100 / 7.110.100 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 9.100 / 5. 9.100 libswresample 3. 9.100 / 3. 9.100 libpostproc 55. 9.100 / 55. 9.100 [dv @ 0x886bfc0] Estimating duration from bitrate, this may be inaccurate Input #0, dv, from '/dev/shm/dv.dv': Metadata: timecode : 00:00:00:00 Duration: 00:00:23.48, start: 0.000000, bitrate: 115200 kb/s Stream #0:0: Video: dvvideo, yuv422p, 1440x1080 [SAR 4:3 DAR 16:9], 25000 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Stream #0:2: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Stream #0:3: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Stream #0:4: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s so, 8 streams ( four stereo pairs), only first 2 of them are real :)

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AOM 3.8, again
by Andrea paz 03 Jan '24

03 Jan '24

I have compiled with both aom 3.8 and aom 3.6 patches without errors. The rendering test results are: aom 3.4: 34 fps aom 3.6: 39 fps aom 3.8: 48 fps The speed increase is noticeable. The videos result visually of the same quality. aom 3.4 and 3.6 give files of equal size while aom 3.8 gives a slightly smaller file.

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SVT-AV1 encoding quite fast on x86_64
by Terje J. Hanssen 03 Jan '24

03 Jan '24

First, a summary from another current post and thread: https://lists.cinelerra-gg.org/pipermail/cin/2023-December/007430.html > I will add the re-encoded sample *SD DV *file using ffmpeg SVT-AV1, as > I was positive surprised how much faster (preset 10 about 25 sec) it > was than rendering AV1 with CinGG (libaom?) . I've tested three > presets: 8, 10 and 12. "Useable visible quality" for all. > > ffmpeg -i dv01_07.dv -c:v libsvtav1 -preset 8 -crf 35 -c:a > libvorbis dv01_07_svt-av1_pr8.webm > frame= 2832 fps= 66 q=35.0 Lsize= 28836kB time=00:01:53.26 > bitrate=2085.6kbits/s speed=2.65x > > ffmpeg -i dv01_07.dv -c:v libsvtav1 -preset 10 -crf 35 -c:a > libvorbis dv01_07_svt-av1_pr10.webm > frame= 2832 *fps=112* q=35.0 Lsize= 34419kB time=00:01:53.26 > bitrate=2489.4kbits/s speed=4.47x > > ffmpeg -i dv01_07.dv -c:v libsvtav1 -preset 12 -crf 35 -c:a > libvorbis dv01_07_svt-av1_pr12.webm > frame= 2832 fps=262 q=35.0 Lsize= 35913kB time=00:01:53.26 > bitrate=2597.5kbits/s speed=10.5x The speed of SVT-AV1 encoding seems for me to be quite useable, at least for personal use. Here I add my latest test results for a *HDV (fps=69)* and a *FHD (fps=51)* video clip. 2.0G hdv01_04.m2t 383M hdv01_04_m2t_svt-av1_pr10.webm 1.7G hd01.mov 20M hd01_mov_svt-av1_pr10.webm *HDV* (yuv420p) ------- *ffprobe -hide_banner hdv01_04.m2t* [mpeg2video @ 0x560c32966340] Invalid frame dimensions 0x0. Last message repeated 7 times [mpegts @ 0x560c32960c00] PES packet size mismatch [mpegts @ 0x560c32960c00] Packet corrupt (stream = 1, dts = 295380000). [mpegts @ 0x560c32960c00] Could not find codec parameters for stream 2 (Unknown: none ([160][0][0][0] / 0x00A0)): unknown codec Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options [mpegts @ 0x560c32960c00] Could not find codec parameters for stream 3 (Unknown: none ([161][0][0][0] / 0x00A1)): unknown codec Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options Input #0, mpegts, from 'hdv01_04.m2t': Duration: 00:10:57.34, start: 2624.856000, bitrate: 26134 kb/s Program 100 Stream #0:0[0x810]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, bt709, top first), 1440x1080 [SAR 4:3 DAR 16:9], 25000 kb/s, 25 fps, 25 tbr, 90k tbn Side data: cpb: bitrate max/min/avg: 25000000/0/0 buffer size: 7340032 vbv_delay: N/A Stream #0:1[0x814]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 384 kb/s Stream #0:2[0x815]: Unknown: none ([160][0][0][0] / 0x00A0) Stream #0:3[0x811]: Unknown: none ([161][0][0][0] / 0x00A1) Unsupported codec with id 0 for input stream 2 Unsupported codec with id 0 for input stream 3 -------------- *ffmpeg -i hdv01_04.m2t -c:v libsvtav1 -preset 10 -crf 35 -c:a libvorbis hdv01_04_m2t_svt-av1_pr10.webm* frame=16420 *fps= 69* q=34.0 Lsize= 391289kB time=00:10:57.36 bitrate=4876.2kbits/s speed=2.77x *ffprobe -hide_banner hdv01_04_m2t_svt-av1_pr10.webm* [libdav1d @ 0x562b42305540] libdav1d 1.3.0 Input #0, matroska,webm, from 'hdv01_04_m2t_svt-av1_pr10.webm': Metadata: ENCODER : Lavf60.3.100 Duration: 00:10:57.40, start: 0.000000, bitrate: 4875 kb/s Stream #0:0: Video: av1 (Main), yuv420p(tv, bt709), 1440x1080, SAR 4:3 DAR 16:9, 25 fps, 25 tbr, 1k tbn Metadata: ENCODER : Lavc60.3.100 libsvtav1 DURATION : 00:10:57.403000000 Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp Metadata: ENCODER : Lavc60.3.100 libvorbis DURATION : 00:10:57.171000000 [libdav1d @ 0x562b42361540] libdav1d 1.3.0 *FHD* *(*yuv422p10le*)* ----- *ffprobe hd01.mov* ..... Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'hd01.mov': Metadata: creation_time : 2016-02-23T23:49:21.000000Z Duration: 00:01:11.28, start: 0.000000, bitrate: 200496 kb/s Stream #0:0[0x1](eng): Video: prores (HQ) (apch / 0x68637061), *yuv422p10le(bt709*, top coded first (swapped)), 1920x1080, 182130 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 2500 tbn (default) Metadata: creation_time : 2016-02-23T23:49:21.000000Z handler_name : Apple Video Media Handler vendor_id : appl encoder : Apple ProRes 422 (HQ) Stream #0:1[0x2](eng): *Audio*: pcm_s24le (lpcm / 0x6D63706C), 48000 Hz, 16 channels, s32 (24 bit), 18432 kb/s (default) Metadata: creation_time : 2016-02-23T23:49:21.000000Z handler_name : Apple Sound Media Handler vendor_id : [0][0][0][0] * ffmpeg -i hd01.mov -c:v libsvtav1 -preset 10 -crf 35 -c:a libvorbis hd01_mov_svt-av1_pr10.webm* frame= 1781 *fps= 51* q=35.0 Lsize= 19732kB time=00:01:11.26 bitrate=2268.3kbits/s speed=2.03x *ffprobe -hide_banner hdv01_04_m2t_svt-av1_pr10.webm* [libdav1d @ 0x562b42305540] libdav1d 1.3.0 Input #0, matroska,webm, from 'hdv01_04_m2t_svt-av1_pr10.webm': Metadata: ENCODER : Lavf60.3.100 Duration: 00:10:57.40, start: 0.000000, bitrate: 4875 kb/s Stream #0:0: Video: av1 (Main), yuv420p(tv, bt709), 1440x1080, SAR 4:3 DAR 16:9, 25 fps, 25 tbr, 1k tbn Metadata: ENCODER : Lavc60.3.100 libsvtav1 DURATION : 00:10:57.403000000 Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp Metadata: ENCODER : Lavc60.3.100 libvorbis DURATION : 00:10:57.171000000 An issue is that the audio was lost during the conversion from .mov to .webm, so I attach the full ffmpeg output below. (possibly a mis-match regarding the audio stream #numbers ?) *ffmpeg -i hd01.mov -c:v libsvtav1 -preset 10 -crf 35 -c:a libvorbis hd01_mov_svt-av1_pr10.webm* ... Guessed Channel Layout for Input Stream #0.1 : hexadecagonal Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'hd01.mov': Metadata: creation_time : 2016-02-23T23:49:21.000000Z Duration: 00:01:11.28, start: 0.000000, bitrate: 200496 kb/s Stream #0:0[0x1](eng): Video: prores (HQ) (apch / 0x68637061), yuv422p10le(bt709, top coded first (swapped)), 1920x1080, 182130 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 2500 tbn (default) Metadata: creation_time : 2016-02-23T23:49:21.000000Z handler_name : Apple Video Media Handler vendor_id : appl encoder : Apple ProRes 422 (HQ) Stream #0:1[0x2](eng): Audio: pcm_s24le (lpcm / 0x6D63706C), 48000 Hz, 16 channels, s32 (24 bit), 18432 kb/s (default) Metadata: creation_time : 2016-02-23T23:49:21.000000Z handler_name : Apple Sound Media Handler vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (prores (native) -> av1 (libsvtav1)) Stream #0:1 -> #0:1 (pcm_s24le (native) -> vorbis (libvorbis)) Press [q] to stop, [?] for help Svt[info]: ------------------------------------------- Svt[info]: SVT [version]: SVT-AV1 Encoder Lib v1.7.0 Svt[info]: SVT [build] : GCC 13.2.1 20230912 [revision b96e66fd4ef3e36983969fb8cdd1956f551a074b] 64 bit Svt[info]: LIB Build date: Nov 3 2023 00:00:00 Svt[info]: ------------------------------------------- Svt[info]: Number of logical cores available: 8 Svt[info]: Number of PPCS 59 Svt[info]: [asm level on system : up to avx2] Svt[info]: [asm level selected : up to avx2] Svt[info]: ------------------------------------------- Svt[info]: SVT [config]: main profile tier (auto) level (auto) Svt[info]: SVT [config]: width / height / fps numerator / fps denominator : 1920 / 1080 / 25 / 1 Svt[info]: SVT [config]: bit-depth / color format : 10 / YUV420 Svt[info]: SVT [config]: preset / tune / pred struct : 10 / PSNR / random access Svt[info]: SVT [config]: gop size / mini-gop size / key-frame type : 161 / 16 / key frame Svt[info]: SVT [config]: BRC mode / rate factor : CRF / 35 Svt[info]: ------------------------------------------- Output #0, webm, to 'hd01_mov_svt-av1_pr10.webm': Metadata: encoder : Lavf60.3.100 Stream #0:0(eng): Video: av1, yuv420p10le(tv, bt709, top coded first (swapped)), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 25 fps, 1k tbn (default) Metadata: creation_time : 2016-02-23T23:49:21.000000Z handler_name : Apple Video Media Handler vendor_id : appl encoder : Lavc60.3.100 libsvtav1 Stream #0:1(eng): Audio: vorbis, 48000 Hz, hexadecagonal, fltp (default) Metadata: creation_time : 2016-02-23T23:49:21.000000Z handler_name : Apple Sound Media Handler vendor_id : [0][0][0][0] encoder : Lavc60.3.100 libvorbis frame= 1781 fps= 51 q=35.0 Lsize= 19732kB time=00:01:11.26 bitrate=2268.3kbits/s speed=2.03x video:18635kB audio:1059kB subtitle:0kB other streams:0kB global headers:3kB muxing overhead: 0.193378%

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oof, there was typo in av1-svt.webm profile
by Andrew Randrianasulu 03 Jan '24

03 Jan '24

cfr instead of crf lower cfr values eat more memory as far as I can see. so they still commented out.

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