пт, 29 дек. 2023 г., 05:01 Terje J. Hanssen <[email protected]>:
> > > Den 17.12.2023 00:05, skrev Andrew Randrianasulu: > > > > пт, 15 дек. 2023 г., 21:10 Terje J. Hanssen via Cin < > [email protected]>: > >> >> >> Anyway, apparently SVT-AV1 libsvtav1 shines as the superiour fastest and >> simple to use CPU based AV1 encoder (before GPU hwaccels) >> > > After rebuilding SVT-AV1 on termux for Neon acceleration I tried three > variations of same file: > > du -h av1-1.8.0* > 5.0M av1-1.8.0-pr12.webm > 4.3M av1-1.8.0-pr2.webm > 4.6M av1-1.8.0.webm > > all on crf 30 > > ffmpeg -i 20081103140154.m2t -c:v libsvtav1 -an -preset 2 -crf 30 > av1-1.8.0-pr2.webm > > this one run at 0.2 fps > > ffmpeg -i 20081103140154.m2t -c:v libsvtav1 -an -preset 12 -crf 30 > av1-1.8.0-pr12.webm > > this one run up to 9.4 fps! > > ffmpeg -i 20081103140154.m2t -c:v libsvtav1 -an -preset 6 -crf 30 > av1-1.8.0.webm > > and this one run at 1.3 fps. > > all files encoded from same input: > > 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 > > So, I guess on aarch64 tablet this one definitely not as fast as on > desktop (x86_64) Intel. > > > > > AV1 Encoding/Rendering: > ====================== > > To compare encoding with FFmpeg/SVT-AV1 v. 1.7.0 and rendering with the > current CinGG/AOM-AV1 (v. 3.1.1?), I used a medium length 1080i HDV clip > (ca. 7 min duration) as input file: > 1,3G hdv07_05.m2t > > > 239M hdv07_05_m2t_svt-av1_pr10.webm > ffmpeg -i hdv07_05.m2t -c:v libsvtav1 -preset 10 -crf 35 -c:a libvorbis > hdv07_05_m2t_svt-av1_pr10.webm > frame=10240 fps= 68 q=27.0 Lsize= 244069kB time=00:06:58.24 > bitrate=4780.5kbits/s speed=2.78x > > > 235M hdv07_05_cingg_aom-av1.webm > Rendering with CinGG/AOM-AV1 > Rendering took 0:37:06 = 2226 sek > FPS=10240/2226=4.6 > > > Rendering speed results: > ------------------------ > 68 FPS vs 4.6 FPS > > > FFplay playback: > =============== > > hdv07_05_m2t_svt-av1_pr10.webm > ------------------------------ > ffplay -hide_banner hdv07_05_m2t_svt-av1_pr10.webm > [libdav1d @ 0x7fe318004880] libdav1d 1.3.0 0KB sq= 0B f=0/0 > Input #0, matroska,webm, from 'hdv07_05_m2t_svt-av1_pr10.webm': > Metadata: > ENCODER : Lavf60.3.100 > Duration: 00:06:58.28, start: 0.000000, bitrate: 4780 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 : 00:06:58.283000000 > Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp > Metadata: > ENCODER : Lavc60.3.100 libvorbis > DURATION : 00:06:57.939000000 > [libdav1d @ 0x7fe3180d5b80] libdav1d 1.3.0 > 20.51 A-V: -0.032 fd= 0 aq= 12KB vq= 310KB sq= 0B f=0/0 > > > hdv07_05_cingg_aom-av1.webm > ---------------------------- > ffplay -hide_banner hdv07_05_cingg_aom-av1.webm > [libdav1d @ 0x7f3650004640] libdav1d 1.3.0 0KB sq= 0B f=0/0 > Input #0, matroska,webm, from 'hdv07_05_cingg_aom-av1.webm':f=0/0 > Metadata: > ENCODER : Lavf60.16.100 > Duration: 00:06:58.08, start: 0.000000, bitrate: 4708 kb/s > Stream #0:0: Video: av1 (Main), yuv420p(tv, bt470bg/unknown/unknown), > 1440x1080, SAR 1:1 DAR 4:3, 25 fps, 25 tbr, 1k tbn > Metadata: > DURATION : 00:06:58.043000000 > Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp > Metadata: > DURATION : 00:06:58.082000000 > [libdav1d @ 0x7f36500da540] libdav1d 1.3.0 > 24.95 A-V: -0.008 fd= 3 aq= 21KB vq= 583KB sq= 0B f=0/0 > > > VLC Playback (copied codec info from GUI Tool tab) > ============ > > vlc hdv07_05_m2t_svt-av1_pr10.webm > ---------------------------------- > Stream 0 > Codec: AOMedia's AV1 Video (av01) > Type: Video > Video resolution: 1440x1080 > Buffer dimensions: 1536x1152 > Frame rate: 25 > Decoded format: Planar 4:2:0 YUV > Orientation: Top left > Color primaries: ITU-R BT.709 > Color transfer function: ITU-R BT.709 > Stream 1 > Codec: Vorbis Audio (vorb) > Type: Audio > Channels: Stereo > Sample rate: 48000 Hz > Bits per sample: 32 > Bitrate: 112 kb/s > encoder: Lavc60.3.100 > > > vlc hdv07_05_cingg_aom-av1.webm > ------------------------------- > Stream 0 > Codec: AOMedia's AV1 Video (av01) > Type: Video > Video resolution: 1440x1080 > Buffer dimensions: 1536x1152 > Frame rate: 25 > Decoded format: Planar 4:2:0 YUV > Orientation: Top left > Color space: ITU-R BT.601 Range > Stream 1 > Codec: Vorbis Audio (vorb) > Type: Audio > Channels: Stereo > Sample rate: 48000 Hz > Bits per sample: 32 > Bitrate: 112 kb/s > encoder: Lavc60.31.102 > > > Playback results: > ----------------- > > hdv07_05_m2t_svt-av1_pr10.webm > ------------------------------ > FFplay and VLC: Correct playback of HDV 16:9 (DAR) Video and correct Audio > BT.709 Colors should be correct for HD(V) video > > > hdv07_05_cingg_aom-av1.webm > ---------------------------- > FFplay and VLC: wrong playback of HDV 4:3 (DAR) Video, > and som screeching (scratch) sound on Audio > BT.601 colors is seemingly for (older) SD video > That said, I just loaded the HDV clip in Cin-GG without change of the > default Preferences, > so this can probably be corrected/tuned. > well, lack of correct (display) aspect ratio on output, as well as distorted sound is concerning! Can you try another audio encoder, and may be manually set 'format' parameters, if container-level aspect ratio still not set up automatically? > > >
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