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?