On Mon, Nov 26, 2018 at 8:06 AM Kieran O Leary <kieran.o.le...@gmail.com>
wrote:
>
>
> On Sat, 24 Nov 2018, 22:11 Martin Vignali <martin.vign...@gmail.com wrote:
>
>> Hello,
>>
>> Patch in attach add some improvments to prores aw encoder
>>
>> 012 : Add vendor option (code come from prores_ks encoder)
>> 013 : Only write color properties, if defined in rdd36 (other values are
>> "converted" to unspecified)
>> 014 : Add 4444 XQ encoding support
>>
>
> I hope to test these patches out today with 12-bit RGB DPX/FFV1 as input.
> Is the 4444 XQ encoder intended to be 10 or 12-bit?
>
So I applied these patches and it appears that ffmpeg will encode XQ as
10-bit, but it will decode as 12-bit. Is this intentional? I worry that I
might have applied the patches incorrectly. And is it possible to add
12-bit encoding?
$ ./ffmpeg -f lavfi -i testsrc -c:v prores -profile:v 5 xq.mov
ffmpeg version N-92541-g598755603c Copyright (c) 2000-2018 the FFmpeg
developers
built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
configuration:
libavutil 56. 24.101 / 56. 24.101
libavcodec 58. 40.100 / 58. 40.100
libavformat 58. 23.100 / 58. 23.100
libavdevice 58. 6.100 / 58. 6.100
libavfilter 7. 46.100 / 7. 46.100
libswscale 5. 4.100 / 5. 4.100
libswresample 3. 4.100 / 3. 4.100
Input #0, lavfi, from 'testsrc':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240
[SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
File 'xq.mov' already exists. Overwrite ? [y/N] y
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> prores (native))
Press [q] to stop, [?] for help
Output #0, mov, to 'xq.mov':
Metadata:
encoder : Lavf58.23.100
Stream #0:0: Video: prores (XQ) (ap4x / 0x78347061), yuv444p10le,
320x240 [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc58.40.100 prores
frame=14747 fps=2015 q=-0.0 Lsize= 469689kB time=00:09:49.84
bitrate=6523.3kbits/s speed=80.6x
video:469627kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.013138%
Exiting normally, received signal 2.
telecine:ffmpeg administrator$ ./ffmpeg -i xq.mov
ffmpeg version N-92541-g598755603c Copyright (c) 2000-2018 the FFmpeg
developers
built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
configuration:
libavutil 56. 24.101 / 56. 24.101
libavcodec 58. 40.100 / 58. 40.100
libavformat 58. 23.100 / 58. 23.100
libavdevice 58. 6.100 / 58. 6.100
libavfilter 7. 46.100 / 7. 46.100
libswscale 5. 4.100 / 5. 4.100
libswresample 3. 4.100 / 3. 4.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'xq.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf58.23.100
Duration: 00:09:49.88, start: 0.000000, bitrate: 6522 kb/s
Stream #0:0(eng): Video: prores (XQ) (ap4x / 0x78347061),
yuv444p12le(tv, progressive), 320x240, 6521 kb/s, SAR 1:1 DAR 4:3, 25 fps,
25 tbr, 12800 tbn, 12800 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc58.40.100 prores
Best,
Kieran.
>
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