вс, 14 янв. 2024 г., 19:51 Terje J. Hanssen <[email protected]>:
> > > Den 14.01.2024 17:43, skrev Terje J. Hanssen: > > > > Den 13.01.2024 18:48, skrev Andrew Randrianasulu: > > > > сб, 13 янв. 2024 г., 07:47 Andrew Randrianasulu <[email protected]>: > >> >> >> сб, 13 янв. 2024 г., 03:26 Terje J. Hanssen via Cin < >> [email protected]>: >> >>> >>> >>> 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. >> > > > OOPS! > As already mentioned, CinGG's FFmpeg-avi was saved/displayed 16:9 and the > Raw DV was saved/displayed 4:3. > BUT, in addition I discovered now that in both cases the images have been > cropped around, that is cut off at both sides, top and bottom. > > I wonder how much was cropped? May be I misread you but you loaded HDV 1440*1080 clip and then rendered it into ffmpeg DV at 576i WITHOUT any scaling on top? That is, the 16:9 avi is displayed with correct geometry, while the 4:3 Raw > DV is displayed stretched vertically. > The latter get correct geometry if forced aspect 16:9 during VLC playback.. > > Actually, only my ffmpeg manual encoded DV-wide has got correct DAR 16:9 > and also correct geometry. > > And kept the full image (un-cropped). > > > A visual tip is that this is easiest to discover and compare side by side > using large file thumbnails with (Gnome) Filemanager. > > > 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 >>> [email protected] >>> https://lists.cinelerra-gg.org/mailman/listinfo/cin >>> >> > >
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