[FFmpeg-trac] #7367(undetermined:new): Magic Lantern Video (MLV) looks green
FFmpeg
trac at avcodec.org
Mon Jan 25 22:06:25 EET 2021
#7367: Magic Lantern Video (MLV) looks green
-------------------------------------+-------------------------------------
Reporter: llogan | Owner:
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: git-master | Resolution:
Keywords: mlv | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Description changed by llogan:
Old description:
> {{{
> $ ./ffmpeg -i M16-1626.MLV -frames:v 1 output.png
> ffmpeg version N-91634-gc2eec1762d Copyright (c) 2000-2018 the FFmpeg
> developers
> built with gcc 8.2.0 (GCC)
> configuration:
> libavutil 56. 19.100 / 56. 19.100
> libavcodec 58. 23.100 / 58. 23.100
> libavformat 58. 17.103 / 58. 17.103
> libavdevice 58. 4.101 / 58. 4.101
> libavfilter 7. 26.100 / 7. 26.100
> libswscale 5. 2.100 / 5. 2.100
> libswresample 3. 2.100 / 3. 2.100
> [mlv @ 0x555e950c76c0] unsupported tag RAWC, size 16
> [mlv @ 0x555e950c76c0] unsupported tag VERS, size 164
> [mlv @ 0x555e950c76c0] unsupported tag VERS, size 156
> [mlv @ 0x555e950c76c0] unsupported tag VERS, size 164
> [mlv @ 0x555e950c76c0] Opening 'M16-1626.M00' for reading
> Input #0, mlv, from 'M16-1626.MLV':
> Metadata:
> guid : 0x9d14f8469a33a33a
> cameraName : Canon EOS REBEL T5i
> cameraModel : 2147484454
> cameraSerial : 13196E1243
> isoMode : manual
> isoValue : 100
> isoAnalog : 72
> digitalGain : 0
> shutterValue : 31152
> focalLength : 50
> focalDist : 0
> aperture : 320
> stabilizerMode : 0
> autofocusMode : 3
> flags : 0
> lensID : 29
> lensName : EF50mm f/1.8 II
> time : 2018-08-16 16:25:16
> wb_mode : 9
> kelvin : 3200
> wbgain_r : 855
> wbgain_g : 1024
> wbgain_b : 350
> wbs_gm : 0
> wbs_ba : 0
> Duration: 00:00:01.17, start: 0.000000, bitrate: 309417 kb/s
> Stream #0:0: Video: rawvideo (BIT[16] / 0x10544942), bayer_rggb16le,
> 1280x720, 23.97 tbr, 23.97 tbn, 23.97 tbc
> Stream mapping:
> Stream #0:0 -> #0:0 (rawvideo (native) -> png (native))
> Press [q] to stop, [?] for help
> Output #0, image2, to 'output.png':
> Metadata:
> guid : 0x9d14f8469a33a33a
> cameraName : Canon EOS REBEL T5i
> cameraModel : 2147484454
> cameraSerial : 13196E1243
> isoMode : manual
> isoValue : 100
> isoAnalog : 72
> digitalGain : 0
> shutterValue : 31152
> focalLength : 50
> focalDist : 0
> aperture : 320
> stabilizerMode : 0
> autofocusMode : 3
> flags : 0
> lensID : 29
> lensName : EF50mm f/1.8 II
> time : 2018-08-16 16:25:16
> wb_mode : 9
> kelvin : 3200
> wbgain_r : 855
> wbgain_g : 1024
> wbgain_b : 350
> wbs_gm : 0
> wbs_ba : 0
> encoder : Lavf58.17.103
> Stream #0:0: Video: png, rgb24, 1280x720, q=2-31, 200 kb/s, 23.97
> fps, 23.97 tbn, 23.97 tbc
> Metadata:
> encoder : Lavc58.23.100 png
> frame= 1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A
> speed=0.188x
> video:510kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
> muxing overhead: unknown
> }}}
>
> Sample:
> https://avmule.com/samples/M16-1626.MLV
>
> Created using magiclantern-Nightly.2018Jul03.700D115.zip. Subject is a
> gray card. Color is correct if played back in camera. mlvfs converts MLV
> to DNG and also creates a correct color output:
> https://avmule.com/samples/M16-1626_000000.dng
>
> The pink and purple artifacts in the center of the image are present in
> the source are not related to this "green" issue.
New description:
{{{
$ ./ffmpeg -i M16-1626.MLV -frames:v 1 output.png
ffmpeg version N-91634-gc2eec1762d Copyright (c) 2000-2018 the FFmpeg
developers
built with gcc 8.2.0 (GCC)
configuration:
libavutil 56. 19.100 / 56. 19.100
libavcodec 58. 23.100 / 58. 23.100
libavformat 58. 17.103 / 58. 17.103
libavdevice 58. 4.101 / 58. 4.101
libavfilter 7. 26.100 / 7. 26.100
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
[mlv @ 0x555e950c76c0] unsupported tag RAWC, size 16
[mlv @ 0x555e950c76c0] unsupported tag VERS, size 164
[mlv @ 0x555e950c76c0] unsupported tag VERS, size 156
[mlv @ 0x555e950c76c0] unsupported tag VERS, size 164
[mlv @ 0x555e950c76c0] Opening 'M16-1626.M00' for reading
Input #0, mlv, from 'M16-1626.MLV':
Metadata:
guid : 0x9d14f8469a33a33a
cameraName : Canon EOS REBEL T5i
cameraModel : 2147484454
cameraSerial : 13196E1243
isoMode : manual
isoValue : 100
isoAnalog : 72
digitalGain : 0
shutterValue : 31152
focalLength : 50
focalDist : 0
aperture : 320
stabilizerMode : 0
autofocusMode : 3
flags : 0
lensID : 29
lensName : EF50mm f/1.8 II
time : 2018-08-16 16:25:16
wb_mode : 9
kelvin : 3200
wbgain_r : 855
wbgain_g : 1024
wbgain_b : 350
wbs_gm : 0
wbs_ba : 0
Duration: 00:00:01.17, start: 0.000000, bitrate: 309417 kb/s
Stream #0:0: Video: rawvideo (BIT[16] / 0x10544942), bayer_rggb16le,
1280x720, 23.97 tbr, 23.97 tbn, 23.97 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> png (native))
Press [q] to stop, [?] for help
Output #0, image2, to 'output.png':
Metadata:
guid : 0x9d14f8469a33a33a
cameraName : Canon EOS REBEL T5i
cameraModel : 2147484454
cameraSerial : 13196E1243
isoMode : manual
isoValue : 100
isoAnalog : 72
digitalGain : 0
shutterValue : 31152
focalLength : 50
focalDist : 0
aperture : 320
stabilizerMode : 0
autofocusMode : 3
flags : 0
lensID : 29
lensName : EF50mm f/1.8 II
time : 2018-08-16 16:25:16
wb_mode : 9
kelvin : 3200
wbgain_r : 855
wbgain_g : 1024
wbgain_b : 350
wbs_gm : 0
wbs_ba : 0
encoder : Lavf58.17.103
Stream #0:0: Video: png, rgb24, 1280x720, q=2-31, 200 kb/s, 23.97 fps,
23.97 tbn, 23.97 tbc
Metadata:
encoder : Lavc58.23.100 png
frame= 1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A
speed=0.188x
video:510kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
}}}
Sample:
https://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket7367/M16-1626.MLV
Created using magiclantern-Nightly.2018Jul03.700D115.zip. Subject is a
gray card. Color is correct if played back in camera. mlvfs converts MLV
to DNG and also creates a correct color output.
The pink and purple artifacts in the center of the image are present in
the source are not related to this "green" issue.
--
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7367#comment:2>
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