сб, 13 янв. 2024 г., 07:47 Andrew Randrianasulu <randrianas...@gmail.com>:
> > > сб, 13 янв. 2024 г., 03:26 Terje J. Hanssen via Cin < > cin@lists.cinelerra-gg.org>: > >> >> >> Den 11.01.2024 23:43, skrev Terje J. Hanssen: >> >> ....... >> >> >> 4 a) Cin-GG >> Loaded a PAL 1080i/50 HDV clip >> Set Format Preset: PAL 576i (16:9) - DV(D) >> File Render File Format: FFmepg - avi (NB! because plain Raw DV still >> causes DAR 4:3) >> Audio: Preset: avi_pcm_s16.avi >> Video: Compression: dv_pal.avi >> >> >> For me it looks like the Set Format Preset: PAL 576i (16:9) - DV(D and/or >> the File Format: FFmpeg make up the correct DAR 16:9 here, right? >> >> Because by Selecting the Format: *Raw DV *cause rendering to *DAR 4:3* >> as shown below ! >> This makes me wonder if it is only the FFmepg File formats that currently >> is fixed by patches? >> May also other non-FFmpeg formats be affected by anamorphic aspect ratios >> ? >> > > This is possible! I basically never used non-ffmpeg video encoders! I > think we have 3 of them - raw dv, mpeg video and theora video. > > I'll check each of them. > in cinelerra/fileogg.C I found this comment: ===== if( asset->aspect_ratio > 0 ) { // Cinelerra uses frame aspect ratio, theora uses pixel aspect ratio float pixel_aspect = asset->aspect_ratio / asset->width * asset->height; aratio_num = pixel_aspect * 1000000; aratio_den = 1000000; } else { aratio_num = 1000000; aratio_den = 1000000; } ===== strangely enough filedv seems to contain code to set is16x9 encoder flag ... not sure why it fails .... mpeg video also should honor aspect ratio, but not tested yet. > >> >> mediainfo dv07_05_wide_cingg.dv | grep Display >> Display aspect ratio : 4:3 >> >> ffprobe -hide_banner dv07_05_wide_cingg.dv >> Input #0, dv, from 'dv07_05_wide_cingg.dv': >> Duration: 00:06:58.08, start: 0.000000, bitrate: 28800 kb/s >> Stream #0:0: Video: dvvideo, yuv420p, 720x576 [SAR 16:15 DAR 4:3], >> 25000 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc >> Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s >> >> >> >> >> -- >> Cin mailing list >> Cin@lists.cinelerra-gg.org >> https://lists.cinelerra-gg.org/mailman/listinfo/cin >> >
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