Commit graph

18 commits

Author SHA1 Message Date
Heinrich Fink
ab70d79c43 applemedia: vtenc: Register a hardware-only vtenc_h264_hw element on OSX
Similar to vtdec_hw, this commit adds a vtenc_h264_hw element that fails
caps negotiation unless a hardware encoder could actually be acquired.
This is useful in situations where a fallback to a software encoder
other than the vtenc_h264 software encoder is desired (e.g. to x264enc).

https://bugzilla.gnome.org/show_bug.cgi?id=767104
2016-06-02 11:22:09 +03:00
Ilya Konstantinov
94e7ed1323 vtenc: fix keyframe request race condition
It is incorrect to modify the frame properties after passing them, since
VTCompressionSessionEncodeFrame takes reference and we have no control
over when it's being used.

In fact, the code can be simplified. We just preallocate the frame
properties for keyframe requests, and pass NULL otherwise.

https://bugzilla.gnome.org/show_bug.cgi?id=748467
2015-06-01 13:32:03 +02:00
Alessandro Decina
21f8c96d75 vtenc: negotiate profile and level with downstream 2014-12-10 22:36:53 +11:00
Alessandro Decina
8166487a00 vtenc: report latency 2014-12-10 19:44:51 +11:00
Sebastian Dröge
b88e4304f1 vtenc: Add properties to specify the maximum keyframe interval in frames and seconds 2014-12-05 16:33:54 +01:00
Alessandro Decina
d25813c9bc vtenc: add quality property 2014-11-27 18:41:21 +01:00
Alessandro Decina
1d97516731 vtenc: add realtime and allow-frame-reordering properties 2014-11-07 00:22:08 +01:00
Sebastian Dröge
61c40523df vtenc: Properly handle keyframes
Especially set the SYNC_POINT flag on keyframes.
2014-09-18 13:11:05 +03:00
Sebastian Dröge
c6f17d6013 vtenc: Only drain the encoder in ::finish(), not on every frame
Otherwise quality and bitrate will be bad.
2014-09-17 17:08:57 +03:00
Sebastian Dröge
7fa9bbc3b0 vtenc: Port to GstVideoEncoder base class 2014-09-16 17:04:31 +03:00
Sebastian Dröge
f2eedb9cee vtenc: Port to the real VideoToolbox API instead of using our dlopen() wrapper
It's a public framework since a long time.
2014-09-16 15:47:29 +03:00
Dominik Röttsches
24c79af394 vtenc: Use correct strides, etc from the GstVideoFrame
https://bugzilla.gnome.org/show_bug.cgi?id=706211
2013-10-02 13:14:32 +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
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
d865feca82 vtenc: remove keyframe enforcement workaround
Was only needed for old iOS where the H.264 encoder didn't support
kVTEncodeFrameOptionKey_ForceKeyFrame.
2010-11-08 23:58:25 +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
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