[FFmpeg-devel] Sample: MPO file format for stereoscopic photos

[Paul B Mahol]

On 12/31/11, Reimar Doeffinger <Reimar.Doeffinger at gmx.de> wrote:
> On Sat, Dec 31, 2011 at 03:49:10PM +0000, Paul B Mahol wrote:
>> On 12/31/11, Reimar Doeffinger <Reimar.Doeffinger at gmx.de> wrote:
>> > On Sat, Dec 31, 2011 at 10:41:53AM +0000, Paul B Mahol wrote:
>> >> On 11/17/11, Michael Niedermayer <michaelni at gmx.at> wrote:
>> >> > On Wed, Nov 16, 2011 at 09:48:31PM +0100, Martin Lambers wrote:
>> >> >> Hi,
>> >> >>
>> >> >> as per a request made here:
>> >> >> <http://savannah.nongnu.org/bugs/?33366>, I
>> >> >> uploaded a sample MPO file with the name stereoscopic_photo.mpo
>> >> >> (info
>> >> >> text: stereoscopic_photo.txt).
>> >> >>
>> >> >> The MPO file format is used by the Fujifilm FinePix Real 3D camera
>> >> >> (and
>> >> >> others) to store stereoscopic photo pairs. It basically contains two
>> >> >> JPEG images, left and right view. Some image readers (but not
>> >> >> FFmpeg)
>> >> >> treat MPO files as single-image JPEG files and show the left image
>> >> >> only.
>> >> >
>> >> > support added, we decode both frames one after the other now.
>> >>
>> >> Please revert that "support".
>> >
>> > Could you please say why? Without that it's at very least a somewhat
>> > impolite request.
>>
>> Isn't this obvious? mpo format is unrelated to mjpeg. Feel free to
>> write demuxer.
>
> Uh, looking at the patch the MPO format _is_ MJPEG so I have no idea why
> you'd call it "unrelated"?!?

Look at MPO format specifications posted by OP.