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hybris_gl_sink.h
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/*
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* Copyright © 2014 Canonical Ltd.
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authored by: Thomas Voß <thomas.voss@canonical.com>
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*/
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#ifndef CORE_UBUNTU_MEDIA_VIDEO_HYBRIS_GL_SINK_H_
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#define CORE_UBUNTU_MEDIA_VIDEO_HYBRIS_GL_SINK_H_
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#include <
core/media/video/sink.h
>
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#include <
core/media/player.h
>
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#include <functional>
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namespace
core
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{
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namespace
ubuntu
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{
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namespace
media
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{
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namespace
video
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{
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class
HybrisGlSink
:
public
video::Sink
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{
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public
:
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// Returns a factory functor that allows for creating actual sink instances.
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static
std::function<video::Sink::Ptr(std::uint32_t)>
factory_for_key
(
const
media::Player::PlayerKey
&);
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// Need this to avoid std::unique_ptr complaining about forward-declared Private.
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~HybrisGlSink
();
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// The signal is emitted whenever a new frame is available and a subsequent
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// call to swap_buffers will not block and return true.
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const
core::Signal<void>&
frame_available
()
const override
;
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// Queries the transformation matrix for the current frame, placing the data into 'matrix'
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// and returns true or returns false and leaves 'matrix' unchanged in case
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// of issues.
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bool
transformation_matrix
(
float
* matrix)
const override
;
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// Releases the current buffer, and consumes the next buffer in the queue,
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// making it available for consumption by consumers of this API in an
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// implementation-specific way. Clients will usually rely on a GL texture
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// to receive the latest buffer.
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bool
swap_buffers
()
const override
;
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private
:
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// Creates a new instance for the given gl texture, connecting to the remote part known
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// under the given key or throw in case of issues.
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HybrisGlSink
(std::uint32_t gl_texture);
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struct
Private;
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std::unique_ptr<Private> d;
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};
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}
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}
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}
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}
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#endif // CORE_UBUNTU_MEDIA_VIDEO_HYBRIS_GL_SINK_H_
core::ubuntu::media::Player::PlayerKey
uint32_t PlayerKey
Definition:
player.h:47
player.h
core::ubuntu::media::video
Definition:
dimensions.h:31
core
Definition:
player.h:33
core::ubuntu::media::video::Sink
A video sink abstracts a queue of buffers, that receives a stream of decoded video buffers from an ar...
Definition:
sink.h:36
sink.h
core::ubuntu::media
Definition:
player.h:37
core::ubuntu::media::video::HybrisGlSink::transformation_matrix
bool transformation_matrix(float *matrix) const override
Queries the 4x4 transformation matrix for the current frame, placing the data into 'matrix'...
core::ubuntu::media::video::HybrisGlSink::factory_for_key
static std::function< video::Sink::Ptr(std::uint32_t)> factory_for_key(const media::Player::PlayerKey &)
core::ubuntu::media::video::HybrisGlSink::~HybrisGlSink
~HybrisGlSink()
core::ubuntu::media::video::HybrisGlSink::frame_available
const core::Signal< void > & frame_available() const override
The signal is emitted whenever a new frame is available and a subsequent call to swap_buffers will no...
core::ubuntu::media::video::HybrisGlSink::swap_buffers
bool swap_buffers() const override
Releases the current buffer, and consumes the next buffer in the queue, making it available for consu...
core::ubuntu::media::video::HybrisGlSink
Definition:
hybris_gl_sink.h:35
src
core
media
video
hybris_gl_sink.h
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