Commit graph

24 commits

Author SHA1 Message Date
Andoni Morales Alastruey
bab2bf3f11 applemedia: fix release of null pointer 2013-06-18 13:33:14 +02:00
Andoni Morales Alastruey
5f4ac8c58f vtdec: simplify caps setting 2013-05-20 13:31:02 +02:00
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
3b249f6761 applemedia: fix segfault with dropped frames 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
Andoni Morales Alastruey
db49a77682 applemedia: add support for MPEG-1 too 2013-05-20 13:31:02 +02:00
Andoni Morales Alastruey
9645d1df2d applemedia: add support for MPEG-2 decoding 2013-05-20 13:31:02 +02:00
Andoni Morales Alastruey
5e09d61638 applemedia: use the best colorformat on each platform
This saves a colorspace conversion before the sink in OS X
2013-05-20 13:31:02 +02:00
Andoni Morales Alastruey
c69f41d299 applemedia: replace private function with its public variant
FigVideoFormatDescriptionCreateWithSampleDescriptionExtensionAtom
is an un-documented private function which might change its signature
as it already did in the past. Replace it with
CMVideoFormatDescriptionCreate and the also un-documented Extensions
dictionary.
2013-05-20 13:31:02 +02:00
Andoni Morales Alastruey
97bb1edf6c applemedia: don't use the dynamic API for public frameworks
Public frameworks don't need to build the API dynamically, we instead
use the framework directly.
The exception is for VideoToolbox which went public in the 10.8 SDK,
but it's still private in older version of the SDK and iOS. This allow
building the plugin against SDK's where it's not a public framework.
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
Ole André Vadla Ravnås
bace18bacc applemedia: replace usage of deprecated gst_pad_set_caps() in vtdec 2013-02-16 02:51:51 +01:00
Ole André Vadla Ravnås
af6df7292c applemedia: port vtapi to run on OS X 10.8 2013-02-16 02:51:51 +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
Mark Nauwelaerts
9cb0cc216d applemedia: init videoinfo 2012-09-18 13:19:37 +02:00
Alessandro Decina
8546458617 applemedia: port vtdec 2012-03-03 19:04:36 +01:00
Ole André Vadla Ravnås
f3d8e3920d applemedia: only enqueue buffers in the VideoToolbox callbacks
These callbacks may fire from any thread, hence we should only enqueue
buffers and let the streaming thread take care of the rest as soon as
the blocking encode or decode operation has finished.
2010-12-10 04:07:05 +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
d10e029f51 applemedia: biplanar is actually NV12, not I420
D'oh!
2010-11-08 23:58:25 +01:00
Ole André Vadla Ravnås
c2672f71cd applemedia: improve vtenc/vtdec performance
Profiling of H.264 encode and decode revealed that conversions
between packed and planar were happening behind the scenes.

Hence we now choose I420 instead of YUY2.
2010-11-08 14:02:50 +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
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