Commit graph

60 commits

Author SHA1 Message Date
Ole André Vadla Ravnås
86e2539816 qtkitvideosrc: implement zero-copy by using buffer-factory
This means we'll wrap each CoreVideo buffer inside a GstBuffer instead of
making a copy.
2010-11-04 17:52:05 +01:00
Ole André Vadla Ravnås
835b2988b6 bufferfactory: add support for wrapping CVBuffer 2010-11-04 17:52:05 +01:00
Ole André Vadla Ravnås
3a44d4c1f9 qtkitvideosrc: fix up refcounting
Should keep a strong reference to the device, but we don't need to manage
the reference count of elements of an NSMutableArray as it takes care of
that for us.
2010-11-04 17:52:04 +01:00
Ole André Vadla Ravnås
b39609b405 qtkitvideosrc: simplify timestamping algorithm
Aligning timestamps on duration boundaries, skipping frames and so forth
are clearly things that fall outside the scope of a video source.
2010-11-04 17:52:04 +01:00
Ole André Vadla Ravnås
3ba76f825d applemedia: add new iOS video source based on AVFoundation
This element makes use of the documented AVFoundation framework made
available starting with iOS 4.0, and hence this means we can finally
capture video using a public API.
2010-11-04 14:32:10 +01:00
Ole André Vadla Ravnås
50c6e05924 applemedia: fix stream-format caps used for H.264
The stream-format's "avc-sample" member is now called just "avc".
2010-11-04 14:32:09 +01:00
Ole André Vadla Ravnås
b873920eaa applemedia: update e-mail addresses 2010-11-04 14:32:09 +01:00
Ole André Vadla Ravnås
c6b32b42de applemedia: switch vtapi to CFTypeRef style typedefs 2010-11-02 23:14:26 +01:00
Ole André Vadla Ravnås
2e349576eb applemedia: support public version of CoreMedia
Also rename the relevant API so we mirror the public API more closely, and
switch to CoreFoundation CFTypeRef style typedefs. We still support the old
private CoreMedia in order to not break OS X support.

This means that vtenc and vtdec are now compatible with iOS 4.x, and in
theory also future versions of OS X, where this API may turn public like
it has on iOS.
2010-11-02 23:14:26 +01:00
Ole André Vadla Ravnås
0e4e351b83 applemedia: New plugin for Apple multimedia APIs
Provides the following elements:

qtkitvideosrc: OS X video source relying on the QTKit API. Comes with
hard-coded caps as the API does not provide any way of querying for
formats supported by the hardware. Hasn't been tested a lot, but seems
to work.

miovideosrc: OS X video source which uses the undocumented/private
CoreMediaIOServices API, which is also the one used by iChat.
Present on latest version of Leopard and all versions of Snow Leopard.
Has been tested extensively with built-in cameras and TANDBERG's
PrecisionHD USB camera.

vtenc, vtdec: Generic codec wrappers which make use of the undocumented/
private VideoToolbox API on OS X and iOS. List of codecs are currently
hard-coded to H.264 for vtenc, and H.264 + JPEG for vtdec. Can easily be
expanded by adding new entries to the lists, but haven't yet had time to
do that. Should probably also implement probing as available codecs depend
on the OS and its version, and there doesn't seem to be any way to
enumerate the available codecs.

vth264decbin, vth264encbin: Wrapper bins to make it easier to use
vtdec_h264/vtenc_h264 in live scenarios.

iphonecamerasrc: iPhone camera source relying on the undocumented/private
Celestial API. Tested on iOS 3.1 running on an iPhone 3GS. Stops working
after a few minutes, presumably because of a resource leak. Needs some
love.

Note that the iOS parts haven't yet been ported to iOS 4.x.
2010-10-28 15:08:08 +02:00