Commit graph

16 commits

Author SHA1 Message Date
Alessandro Decina
045a935871 applemedia: refactor GL context code
Rework the GL context code. Now both avfvideosrc and vtdec can create an
internal GL context for pushing textures. Both elements will still try to
use/switch to a local context where available (including after RECONFIGURE
events).
2016-01-29 15:10:32 +11:00
Alessandro Decina
e730b0a8ab applemedia: rename GstCoreVideoTextureCache to GstVideoTextureCache
First of a few commits to stop using CVOpenGLTextureCache on OSX and use
IOSurfaces directly instead. CVOpenGLTextureCache hasn't been updated for OpenGL
3 which is why texture sharing is currently disabled on OSX.
2015-12-16 17:03:03 +11:00
Alessandro Decina
119e09eac3 applemedia: vtdec: improve negotiation
Rework negotiation implementing GstVideoDecoder::negotiate. Make it possible to
switch texture sharing on and off at runtime. Useful to (eventually) turn
texture sharing on in pipelines where glimagesink is linked only after
decoding has already started (for example OWR).
2015-11-17 12:59:58 +11:00
Sebastian Dröge
160df421ea vtdec: Register a hardware-only vtdec_hw on OSX and give it a higher rank
while having the default vtdec at secondary rank. This allows decodebin/playbin
to prefer the hardware based decoders, and if that fails to initialize because
hardware resources are busy to fall back to e.g. the libav based h264 decoder
instead of the software based vtdec (which is slower), and only fall back to
the software based vtdec if there is no higher ranked decoder available.
2015-03-07 10:31:26 +01:00
Alessandro Decina
d95a12e185 vtdec: implement the GL texture upload meta 2015-01-15 14:10:43 +11:00
Alessandro Decina
00392a6d16 applemedia: vtdec: rename reorder_queue_frame_delay to reorder_queue_length 2013-12-11 08:12:37 +01:00
Alessandro Decina
b1a756fda7 applemedia: rewrite VideoToolbox decoder based on GstVideoDecoder 2013-12-08 15:13:26 +01:00
Andoni Morales Alastruey
2f36ffb7d0 applemedia: fix H264 streams with b-frames
The decoder output frames in DTS order, even with the flag
kVTDecodeFrame_EnableTemporalProcessing. We store a internal
queue of the decoded frames and push them PTS order.
2013-05-20 13:31:02 +02:00
Andoni Morales Alastruey
d9db0c2d4a applemedia: improve usage of the VT API
Add timing information to CV samples and pass the GstBuffer
as extra data in the decode function
2013-05-20 13:31:02 +02:00
Ole André Vadla Ravnås
519cefdeee applemedia: update contact information 2013-02-16 02:51:52 +01:00
Tim-Philipp Müller
9e1b75fda3 Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-04 00:09:59 +00:00
Alessandro Decina
8546458617 applemedia: port vtdec 2012-03-03 19:04:36 +01:00
Ole André Vadla Ravnås
ebd2a6d6e9 applemedia: don't push synchronously from callback
The codec that called us might be holding locks to shared resources, so
we should never push downstream from within its buffer callback.

Note that a GstBufferList is not used here because we need to preserve
the buffer metadata held by our GstBuffer subclasses.
2010-11-11 00:22:31 +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