[FFmpeg-user] convert YV12 stream to ProRes

[Roee Kashi]

1. I need to convert that input to ProRes indeed for editing.
2. video is tested in VLC player.
3. images attached (the blue one is the original, and pink one is after
converting to prores)

[image: תמונה מוטבעת 2][image: תמונה מוטבעת 1]


2014-06-17 10:18 GMT+03:00 Christoph Gerstbauer <
christophgerstbauer at gmail.com>:

> can you provide a screenshot of source and prores output?
>
> bg Chris
>
> Am 16.06.2014 22:43, schrieb Roee Kashi:
>
>  of course, and it works but the output is more red then the original
>> because the U and V are opposite probably.
>>
>>
>> 2014-06-16 22:48 GMT+03:00 Christoph Gerstbauer <
>> christophgerstbauer at gmail.com>:
>>
>>  Did you try it without the -vtag option?
>>>
>>> (ProRes is alsways 10bit 4:2:2)
>>>
>>> bg chris
>>>
>>>
>>> Am 16.06.14 21:21, schrieb Roee Kashi:
>>>
>>>  Hi,
>>>>
>>>> I'm decoding an IP camera stream which outputs YV12 frames.
>>>> using named pipes, I pass this stream to ffmpeg (Zeranoe build version
>>>> 2014-06-15) and wish to convert it to ProRes format.
>>>> I tried the following command:
>>>>
>>>>  ffmpeg.exe -y -f rawvideo -vcodec rawvideo -s 352x288 -r 25 -pix_fmt
>>>>>
>>>>>  yuv420p -i \\.\pipe\yv12Pipe -vcodec prores -qp 0 -vtag YV12
>>>> d:\\out123.mov
>>>>
>>>> when i convert it to AVI it works ok, but for ProRes it doesn't and it's
>>>> probably because the vtag YV12 cannot be applied on ProRes which defines
>>>> its pixel format.
>>>>
>>>> what i'm seeking is an additional input pix_fmt for YV12 (or perhaps
>>>> yvu420p?).
>>>>
>>>> When I tried to do that in 2 steps (convert it to AVI then to ProRes) it
>>>> works, terribly slow - but works.
>>>> here is the output of this process:
>>>>
>>>>   ffmpeg -i "d:\out123.avi" -vcodec prores d:\out.mov
>>>> ffmpeg version N-63968-g73d820e Copyright (c) 2000-2014 the FFmpeg
>>>> developers
>>>>     built on Jun 15 2014 00:52:21 with gcc 4.8.3 (GCC)
>>>>     configuration: --enable-gpl --enable-version3 --disable-w32threads
>>>> --enable-avisynth --enable-bzlib --enable-fontconfig --e
>>>> tls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca
>>>> --enable-libfreetype --enable-libgme --enable-libgsm -
>>>> libmodplug --enable-libmp3lame --enable-libopencore-amrnb
>>>> --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --
>>>> ibschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora
>>>> --enable-libtwolame --enable-libvidstab --enable-libvo-a
>>>> benc --enable-libvorbis --enable-libvpx --enable-libwavpack
>>>> --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxa
>>>> ble-decklink --enable-zlib
>>>>     libavutil      52. 89.100 / 52. 89.100
>>>>     libavcodec     55. 66.101 / 55. 66.101
>>>>     libavformat    55. 43.100 / 55. 43.100
>>>>     libavdevice    55. 13.101 / 55. 13.101
>>>>     libavfilter     4.  8.100 /  4.  8.100
>>>>     libswscale      2.  6.100 /  2.  6.100
>>>>     libswresample   0. 19.100 /  0. 19.100
>>>>     libpostproc    52.  3.100 / 52.  3.100
>>>> Input #0, avi, from 'd:\out123.avi':
>>>>     Metadata:
>>>>       encoder         : Lavf55.21.102
>>>>     Duration: 00:11:18.36, start: 0.000000, bitrate: 30417 kb/s
>>>>       Stream #0:0: Video: rawvideo (YV12 / 0x32315659), yuv420p,
>>>> 352x288,
>>>> 30414 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
>>>> [prores @ 0000000000315d40] encoding with ProRes standard (apcn) profile
>>>> [prores @ 000000000034f680] encoding with ProRes standard (apcn) profile
>>>> [prores @ 0000000000354ce0] encoding with ProRes standard (apcn) profile
>>>> [prores @ 0000000000357f60] encoding with ProRes standard (apcn) profile
>>>> [prores @ 00000000003001a0] encoding with ProRes standard (apcn) profile
>>>> Output #0, mov, to 'd:\out.mov':
>>>>     Metadata:
>>>>       encoder         : Lavf55.43.100
>>>>       Stream #0:0: Video: prores (apcn) (apcn / 0x6E637061),
>>>> yuv422p10le,
>>>> 352x288, q=2-31, 200 kb/s, 25 fps, 12800 tbn, 25 tbc
>>>>       Metadata:
>>>>         encoder         : Lavc55.66.101 prores
>>>> Stream mapping:
>>>>     Stream #0:0 -> #0:0 (rawvideo (native) -> prores (prores))
>>>> Press [q] to stop, [?] for help
>>>> frame=16959 fps=220 q=0.0 Lsize=  606784kB time=00:11:18.36
>>>> bitrate=7327.6kbits/s
>>>> video:606713kB audio:0kB subtitle:0kB other streams:0kB global
>>>> headers:0kB
>>>> muxing overhead: 0.011810%
>>>>
>>>> So I believe there should be a way to do improve it with a single
>>>> operation.
>>>>
>>>> Regards,
>>>> Roee.
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>>>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>>>>
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>
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