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/*
* Copyright (C) 2013 Cable Television Laboratories, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#if ENABLE(VIDEO) && USE(GSTREAMER)
#include "VideoTrackPrivateGStreamer.h"
#include "GStreamerCommon.h"
#include "MediaPlayerPrivateGStreamer.h"
#include <gst/pbutils/pbutils.h>
#include <wtf/Scope.h>
namespace WebCore {
VideoTrackPrivateGStreamer::VideoTrackPrivateGStreamer(WeakPtr<MediaPlayerPrivateGStreamer> player, unsigned index, GRefPtr<GstPad>&& pad, bool shouldHandleStreamStartEvent)
: TrackPrivateBaseGStreamer(TrackPrivateBaseGStreamer::TrackType::Video, this, index, WTFMove(pad), shouldHandleStreamStartEvent)
, m_player(player)
{
}
VideoTrackPrivateGStreamer::VideoTrackPrivateGStreamer(WeakPtr<MediaPlayerPrivateGStreamer> player, unsigned index, GstStream* stream)
: TrackPrivateBaseGStreamer(TrackPrivateBaseGStreamer::TrackType::Video, this, index, stream)
, m_player(player)
{
int kind;
auto tags = adoptGRef(gst_stream_get_tags(m_stream.get()));
if (tags && gst_tag_list_get_int(tags.get(), "webkit-media-stream-kind", &kind) && kind == static_cast<int>(VideoTrackPrivate::Kind::Main)) {
auto streamFlags = gst_stream_get_stream_flags(m_stream.get());
gst_stream_set_stream_flags(m_stream.get(), static_cast<GstStreamFlags>(streamFlags | GST_STREAM_FLAG_SELECT));
}
g_signal_connect_swapped(m_stream.get(), "notify::caps", G_CALLBACK(+[](VideoTrackPrivateGStreamer* track) {
track->m_taskQueue.enqueueTask([track]() {
track->updateConfigurationFromCaps();
});
}), this);
g_signal_connect_swapped(m_stream.get(), "notify::tags", G_CALLBACK(+[](VideoTrackPrivateGStreamer* track) {
if (isMainThread())
track->updateConfigurationFromTags();
else
track->m_taskQueue.enqueueTask([track]() {
track->updateConfigurationFromTags();
});
}), this);
updateConfigurationFromCaps();
updateConfigurationFromTags();
}
void VideoTrackPrivateGStreamer::updateConfigurationFromTags()
{
ASSERT(isMainThread());
if (!m_stream)
return;
auto tags = adoptGRef(gst_stream_get_tags(m_stream.get()));
unsigned bitrate;
if (!tags || !gst_tag_list_get_uint(tags.get(), GST_TAG_BITRATE, &bitrate))
return;
auto configuration = this->configuration();
configuration.bitrate = bitrate;
setConfiguration(WTFMove(configuration));
}
void VideoTrackPrivateGStreamer::updateConfigurationFromCaps()
{
ASSERT(isMainThread());
if (!m_stream)
return;
auto caps = adoptGRef(gst_stream_get_caps(m_stream.get()));
if (!caps || !gst_caps_is_fixed(caps.get()))
return;
// We might be notified of RTP caps here, when an incoming video track is re-enabled. Since
// those caps most likely do not contain the information we need (width, height, colorimetry,
// ...), keep previous configuration and return early.
if (!doCapsHaveType(caps.get(), GST_VIDEO_CAPS_TYPE_PREFIX))
return;
auto configuration = this->configuration();
auto scopeExit = makeScopeExit([&] {
setConfiguration(WTFMove(configuration));
});
if (areEncryptedCaps(caps.get())) {
if (auto videoResolution = getVideoResolutionFromCaps(caps.get())) {
configuration.width = videoResolution->width();
configuration.height = videoResolution->height();
}
return;
}
GstVideoInfo info;
if (gst_video_info_from_caps(&info, caps.get())) {
if (GST_VIDEO_INFO_FPS_N(&info)) {
double framerate;
gst_util_fraction_to_double(GST_VIDEO_INFO_FPS_N(&info), GST_VIDEO_INFO_FPS_D(&info), &framerate);
configuration.framerate = framerate;
}
configuration.width = GST_VIDEO_INFO_WIDTH(&info);
configuration.height = GST_VIDEO_INFO_HEIGHT(&info);
configuration.colorSpace = videoColorSpaceFromInfo(info);
}
#if GST_CHECK_VERSION(1, 20, 0)
GUniquePtr<char> codec(gst_codec_utils_caps_get_mime_codec(caps.get()));
configuration.codec = String::fromLatin1(codec.get());
#endif
}
VideoTrackPrivate::Kind VideoTrackPrivateGStreamer::kind() const
{
if (m_stream && gst_stream_get_stream_flags(m_stream.get()) & GST_STREAM_FLAG_SELECT)
return VideoTrackPrivate::Kind::Main;
return VideoTrackPrivate::kind();
}
void VideoTrackPrivateGStreamer::disconnect()
{
m_taskQueue.startAborting();
if (m_stream)
g_signal_handlers_disconnect_matched(m_stream.get(), G_SIGNAL_MATCH_DATA, 0, 0, nullptr, nullptr, this);
m_player = nullptr;
TrackPrivateBaseGStreamer::disconnect();
m_taskQueue.finishAborting();
}
void VideoTrackPrivateGStreamer::setSelected(bool selected)
{
if (selected == this->selected())
return;
VideoTrackPrivate::setSelected(selected);
if (m_player)
m_player->updateEnabledVideoTrack();
}
} // namespace WebCore
#endif // ENABLE(VIDEO) && USE(GSTREAMER)
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