[FFmpeg-user] convert from bt601 to bt709
Gregory Ducatel
gducatel at gmail.com
Thu Jun 5 05:03:02 CEST 2014
Hi Guys,
I am trying to convert a DPX image sequence into a DNXHD movie.
My issue is that I am not able to properly convert the data from bt601 into
an output of bt701 using the following command line (on Windows 7 x64).
*Command line:*
ffmpeg.exe -y -threads 8 -f image2 -r 24000/1001 -i "Source_file.%04d.dpx"
-sws_flags full_chroma_inp+full_chroma_int+accurate_rnd+print_info -c:v
dnxhd -pix_fmt yuv422p -b:v 115M -vf "[in]scale=1920:1080,
colormatrix=bt601:bt709[out]" -movflags +faststart -aspect 1.777778
"c:\test_dnxhd.mov"
*Output result:*
ffmpeg version N-63746-gfbaf73a Copyright (c) 2000-2014 the FFmpeg
developers
built on Jun 3 2014 22:10:20 with gcc 4.8.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
--enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca
--enable-libfreetyp
e --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug
--enable-
libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libope
njpeg --enable-libopus --enable-librtmp --enable-libschroedinger
--enable-libsox
r --enable-libspeex --enable-libtheora --enable-libtwolame
--enable-libvidstab -
-enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx
--enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265
--enable-
libxavs --enable-libxvid --enable-decklink --enable-zlib
libavutil 52. 89.100 / 52. 89.100
libavcodec 55. 66.100 / 55. 66.100
libavformat 55. 42.100 / 55. 42.100
libavdevice 55. 13.101 / 55. 13.101
libavfilter 4. 5.100 / 4. 5.100
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
libpostproc 52. 3.100 / 52. 3.100
Input #0, image2, from 'R:\test.%04d.dpx':
Duration: 00:00:06.67, start: 0.000000, bitrate: N/A
Stream #0:0: Video: dpx, gbrp10le, 1920x1080 [SAR 1:1 DAR 16:9], 23.98
tbr,23.98 tbn, 23.98 tbc
[swscaler @ 0000000000383fc0] bicubic scaler, from gbrp10le to yuv422p10le
using MMXEXT
[swscaler @ 00000000003a7960] bicubic scaler, from yuv422p10le to yuv422p
using MMXEXT
[swscaler @ 00000000003a7960] using unscaled yuv422p10le -> yuv422p special
converter
Output #0, mov, to 'c:\test_dnxhd.mov':
Metadata:
encoder : Lavf55.42.100
Stream #0:0: Video: dnxhd (AVdn / 0x6E645641), yuv422p, 1920x1080 [SAR
1:1 D
AR 16:9], q=2-1024, 115000 kb/s, 23.98 fps, 19184 tbn, 23.98 tbc
Metadata:
encoder : Lavc55.66.100 dnxhd
Stream mapping:
Stream #0:0 -> #0:0 (dpx -> dnxhd)
Press [q] to stop, [?] for help
frame= 4 fps=0.0 q=1.0 size= 2368kB time=00:00:00.16
bitrate=116296.4kbits
frame= 7 fps=6.5 q=1.0 size= 4144kB time=00:00:00.29
bitrate=116295.9kbits
frame= 10 fps=6.1 q=1.0 size= 5920kB time=00:00:00.41
bitrate=116295.7kbits
frame= 13 fps=5.9 q=1.0 size= 7696kB time=00:00:00.54
bitrate=116295.6kbits
frame= 16 fps=5.8 q=1.0 size= 9472kB time=00:00:00.66
bitrate=116295.3kbits
frame= 19 fps=5.8 q=1.0 size= 11248kB time=00:00:00.79
bitrate=116295.3kbits
frame= 22 fps=5.7 q=1.0 size= 13024kB time=00:00:00.91
bitrate=116295.3kbits
frame= 25 fps=5.7 q=1.0 size= 14800kB time=00:00:01.04
bitrate=116295.3kbits
frame= 28 fps=5.7 q=1.0 size= 16576kB time=00:00:01.16
bitrate=116295.2kbits
frame= 31 fps=5.7 q=1.0 size= 18352kB time=00:00:01.29
bitrate=116295.2kbits
frame= 34 fps=5.6 q=1.0 size= 20128kB time=00:00:01.41
bitrate=116295.2kbits
frame= 37 fps=5.6 q=1.0 size= 21904kB time=00:00:01.54
bitrate=116295.2kbits
frame= 40 fps=5.6 q=1.0 size= 23680kB time=00:00:01.66
bitrate=116295.1kbits
frame= 43 fps=5.6 q=1.0 size= 25456kB time=00:00:01.79
bitrate=116295.1kbits
frame= 46 fps=5.6 q=1.0 size= 27232kB time=00:00:01.91
bitrate=116295.1kbits
frame= 49 fps=5.6 q=1.0 size= 29008kB time=00:00:02.04
bitrate=116295.1kbits
frame= 52 fps=5.6 q=1.0 size= 30784kB time=00:00:02.16
bitrate=116295.1kbits
frame= 55 fps=5.6 q=1.0 size= 32560kB time=00:00:02.29
bitrate=116295.1kbits
frame= 58 fps=5.6 q=1.0 size= 34336kB time=00:00:02.41
bitrate=116295.1kbits
frame= 61 fps=5.6 q=1.0 size= 36112kB time=00:00:02.54
bitrate=116295.1kbits
frame= 64 fps=5.6 q=1.0 size= 37888kB time=00:00:02.66
bitrate=116295.0kbits
frame= 67 fps=5.6 q=1.0 size= 39664kB time=00:00:02.79
bitrate=116295.0kbits
frame= 70 fps=5.6 q=1.0 size= 41440kB time=00:00:02.91
bitrate=116295.1kbits
frame= 73 fps=5.6 q=1.0 size= 43216kB time=00:00:03.04
bitrate=116295.0kbits
frame= 76 fps=5.5 q=1.0 size= 44992kB time=00:00:03.16
bitrate=116295.0kbits
frame= 79 fps=5.5 q=1.0 size= 46768kB time=00:00:03.29
bitrate=116295.0kbits
frame= 82 fps=5.5 q=1.0 size= 48544kB time=00:00:03.41
bitrate=116295.0kbits
frame= 85 fps=5.5 q=1.0 size= 50320kB time=00:00:03.54
bitrate=116295.0kbits
frame= 88 fps=5.5 q=1.0 size= 52096kB time=00:00:03.66
bitrate=116295.0kbits
frame= 91 fps=5.5 q=1.0 size= 53872kB time=00:00:03.79
bitrate=116295.0kbits
frame= 94 fps=5.5 q=1.0 size= 55648kB time=00:00:03.91
bitrate=116295.0kbits
frame= 97 fps=5.5 q=1.0 size= 57424kB time=00:00:04.04
bitrate=116295.0kbits
frame= 100 fps=5.5 q=1.0 size= 59200kB time=00:00:04.17
bitrate=116295.0kbits
frame= 103 fps=5.5 q=1.0 size= 60976kB time=00:00:04.29
bitrate=116295.0kbits
frame= 106 fps=5.5 q=1.0 size= 62752kB time=00:00:04.42
bitrate=116295.0kbits
frame= 109 fps=5.5 q=1.0 size= 64528kB time=00:00:04.54
bitrate=116295.0kbits
frame= 112 fps=5.5 q=1.0 size= 66304kB time=00:00:04.67
bitrate=116295.0kbits
frame= 115 fps=5.5 q=1.0 size= 68080kB time=00:00:04.79
bitrate=116295.0kbits
frame= 118 fps=5.5 q=1.0 size= 69856kB time=00:00:04.92
bitrate=116295.0kbits
frame= 121 fps=5.5 q=1.0 size= 71632kB time=00:00:05.04
bitrate=116295.0kbits
frame= 124 fps=5.5 q=1.0 size= 73408kB time=00:00:05.17
bitrate=116295.0kbits
frame= 127 fps=5.5 q=1.0 size= 75184kB time=00:00:05.29
bitrate=116295.0kbits
frame= 130 fps=5.5 q=1.0 size= 76960kB time=00:00:05.42
bitrate=116295.0kbits
frame= 133 fps=5.5 q=1.0 size= 78736kB time=00:00:05.54
bitrate=116295.0kbits
frame= 136 fps=5.5 q=1.0 size= 80512kB time=00:00:05.67
bitrate=116295.0kbits
frame= 139 fps=5.5 q=1.0 size= 82288kB time=00:00:05.79
bitrate=116295.0kbits
frame= 142 fps=5.5 q=1.0 size= 84064kB time=00:00:05.92
bitrate=116295.0kbits
frame= 145 fps=5.5 q=1.0 size= 85840kB time=00:00:06.04
bitrate=116295.0kbits
frame= 148 fps=5.5 q=1.0 size= 87616kB time=00:00:06.17
bitrate=116295.0kbits
frame= 151 fps=5.5 q=1.0 size= 89392kB time=00:00:06.29
bitrate=116295.0kbits
frame= 154 fps=5.5 q=1.0 size= 91168kB time=00:00:06.42
bitrate=116295.0kbits
frame= 157 fps=5.5 q=1.0 size= 92944kB time=00:00:06.54
bitrate=116295.0kbits
frame= 160 fps=5.5 q=1.0 size= 94720kB time=00:00:06.67
bitrate=116295.0kbits
[mov @ 00000000003836c0] Starting second pass: moving the moov atom to the
beginning of the file
frame= 160 fps=5.4 q=1.0 Lsize= 94721kB time=00:00:06.67
bitrate=116296.8kbits/s
video:94720kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.001571%
When I open the file inside QuickTime, it is like the color matrix was not
apply and the gamma is always set to 2.2... Any advice or help?
Thanks.
Greg
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