[FFmpeg-devel] [PATCH] jpeg2000: use of lowres parameter from avcodec.h

[Benjamin GIGON]

I've tested on Linux and MacOS.


For MacOS :

port install libopenjpeg
export CFLAGS="-I/opt/local/include/"
export LDFLAGS="-L/opt//local/lib/"
./configure --enable-libopenjpeg --prefix=/your/path/of/ffmpeg/
make

./ffplay -lowres 2
dcp/synchrojpeg2000-feature/jp2k_d9842703-519f-b145-91fa-8de1a220f16b_video.mxf

Playing...

Input #0, mxf, from
'dcp/synchrojpeg2000-feature/jp2k_d9842703-519f-b145-91fa-8de1a220f16b_video.mxf':
  Metadata:
    company_name    : Doremi Labs, Inc.
    product_name    : Orca
    product_version : 1.2.9
    product_uid     : a1ed80d7-c157-6f4c-9b6b-03955342f5b9
    modification_date: 2006-02-02 01:11:58
    uid             : d601a4de-3338-b448-8d37-bec4526a321d
    generation_uid  : cb7f50b0-8935-1441-973a-3e6fa50df97f
    timecode        : 00:00:00:00
  Duration: 00:01:03.92, start: 0.000000, bitrate: 8686 kb/s
    Stream #0:0: Video: jpeg2000 (JPEG 2000 digital cinema 2K),
xyz12le, 2048x1080, 24 tbr, 24 tbn, 24 tbc
   0.85 A-V:  0.000 fd=   0 aq=    0KB vq=  864KB sq=    0B f=0/0


Works with lowres 1 to 3.
I see some freeze in some DCP

In attachment, 2 outputs display.
First: DCP Test from Eclair Laboratoires
Second: DCP Terminator Salvation.

( http://s23.postimg.org/uzx5csxjf/Capture_d_cran_2013_04_29_14_42_37.png )

[image:
http://s23.postimg.org/uzx5csxjf/Capture_d_cran_2013_04_29_14_42_37.png]<http://s23.postimg.org/uzx5csxjf/Capture_d_cran_2013_04_29_14_42_37.png>

( http://s21.postimg.org/p0jjqx1vb/Capture_d_cran_2013_04_29_14_43_55.png )

[image:
http://s21.postimg.org/p0jjqx1vb/Capture_d_cran_2013_04_29_14_43_55.png]<http://s21.postimg.org/p0jjqx1vb/Capture_d_cran_2013_04_29_14_43_55.png>

Colorspace seems to be good for me (I should do this test on a DCP2000
player when it's possible).

Good job guys ;-)



Original post here: https://ffmpeg.org/trac/ffmpeg/ticket/1279#comment:32


2013/4/29 Wolfgang Woehl <tito at online.de>

> On 29.04.2013, at 14:22, Benjamin GIGON <benjaming at doremitechno.org>
> wrote:
> >
> > Note: ffmpeg-dci.patch = dci.patch + dci2.patch + dci3.patch
> >
> > cd ffmpeg-devel
> > patch -p1 < one-of-this.patch
>
> Works. Hey, big D in on this? And me little mouse here is the last to
> learn :) Thanks Benjamin, much appreciated.
>
> Bar some possible color issues this is great. I'll leave and have a
> heart-attack now.
>
> Wolfgang
>
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