ffmpeg / handbrake different results
by GPGAgent from LinuxQuestions.org on (#59S47)
I use ffmpeg (Version 4.2.4) and HandBrakeCli (Version 1.3.1) but they produce slightly different aspect ratios for the encoded output, here's the relevant info:Code:Input vob file (from a dvd)
FFprobe of the vob file:
ffprobe: Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first),
720x576 [SAR 16:15 DAR 4:3], 4000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
ffmpeg process
=========
The command:
ffmpeg -i V/Title-9.vob -vf yadif -crf 28 -c:v libx265 -preset medium ff-09.mp4
ffprobe of the output:
Stream #0:0(und): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv, progressive),
720x576 [SAR 16:15 DAR 4:3], 567 kb/s, 25 fps, 25 tbr, 12800 tbn, 25 tbc (default)
HandBrakeCli process
==============
The command:
HandBrakeCLI -i V/*.iso -t 9 -e x265 --x265-preset medium -2 -T -q 28 -d -m -o hb-09.mp4
ffprobe of the output:
Stream #0:0(und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, smpte170m/bt470bg/bt709),
700x576 [SAR 16:15 DAR 35:27], 549 kb/s, 24.99 fps, 25 tbr, 90k tbn, 25 tbc (default)I can see that HandBrake works out the DAR values differently from the vob file.
The question is what settings do I need to get HandBrake to preserve the aspect ratio? I don't want to enter the width and height, I'd rather HandBrake did this for me. I've tried the obvious like --keep-display-aspect and other flags but to no affect.
FFprobe of the vob file:
ffprobe: Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first),
720x576 [SAR 16:15 DAR 4:3], 4000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
ffmpeg process
=========
The command:
ffmpeg -i V/Title-9.vob -vf yadif -crf 28 -c:v libx265 -preset medium ff-09.mp4
ffprobe of the output:
Stream #0:0(und): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv, progressive),
720x576 [SAR 16:15 DAR 4:3], 567 kb/s, 25 fps, 25 tbr, 12800 tbn, 25 tbc (default)
HandBrakeCli process
==============
The command:
HandBrakeCLI -i V/*.iso -t 9 -e x265 --x265-preset medium -2 -T -q 28 -d -m -o hb-09.mp4
ffprobe of the output:
Stream #0:0(und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, smpte170m/bt470bg/bt709),
700x576 [SAR 16:15 DAR 35:27], 549 kb/s, 24.99 fps, 25 tbr, 90k tbn, 25 tbc (default)I can see that HandBrake works out the DAR values differently from the vob file.
The question is what settings do I need to get HandBrake to preserve the aspect ratio? I don't want to enter the width and height, I'd rather HandBrake did this for me. I've tried the obvious like --keep-display-aspect and other flags but to no affect.