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webkit / WebKit / e12ac10e724723adaf506fbf217fb834af319788 / . / Source / WebCore / platform / graphics / gstreamer / MediaPlayerPrivateGStreamerBase.cpp
blob: d64787b5c2d0bf89596966fe2e92f68678315b5e [file] [log] [blame]
/*
* Copyright (C) 2007, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2007 Collabora Ltd. All rights reserved.
* Copyright (C) 2007 Alp Toker <alp@atoker.com>
* Copyright (C) 2009 Gustavo Noronha Silva <gns@gnome.org>
* Copyright (C) 2009, 2010, 2015, 2016 Igalia S.L
* Copyright (C) 2015, 2016 Metrological Group B.V.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* aint with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "MediaPlayerPrivateGStreamerBase.h"
#if ENABLE(VIDEO) && USE(GSTREAMER)
#include "GStreamerCommon.h"
#include "GraphicsContext.h"
#include "ImageGStreamer.h"
#include "ImageOrientation.h"
#include "IntRect.h"
#include "Logging.h"
#include "MediaPlayer.h"
#include "NotImplemented.h"
#include "VideoSinkGStreamer.h"
#include "WebKitWebSourceGStreamer.h"
#include <wtf/glib/GUniquePtr.h>
#include <wtf/text/AtomString.h>
#include <wtf/text/CString.h>
#include <wtf/MathExtras.h>
#include <wtf/StringPrintStream.h>
#include <gst/audio/streamvolume.h>
#include <gst/video/gstvideometa.h>
#if ENABLE(ENCRYPTED_MEDIA)
#include "CDMInstance.h"
#include "GStreamerEMEUtilities.h"
#include "SharedBuffer.h"
#include "WebKitCommonEncryptionDecryptorGStreamer.h"
#endif
#if USE(GSTREAMER_GL)
#define TEXTURE_COPIER_COLOR_CONVERT_FLAG VideoTextureCopierGStreamer::ColorConversion::NoConvert
#define GST_GL_CAPS_FORMAT "{ RGBx, RGBA, I420, Y444, YV12, Y41B, Y42B, NV12, NV21, VUYA }"
#include <gst/app/gstappsink.h>
#include "GLContext.h"
#if USE(GLX)
#include "GLContextGLX.h"
#include <gst/gl/x11/gstgldisplay_x11.h>
#endif
#if USE(EGL)
#include "GLContextEGL.h"
#include <gst/gl/egl/gstgldisplay_egl.h>
#endif
#if PLATFORM(X11)
#include "PlatformDisplayX11.h"
#endif
#if PLATFORM(WAYLAND)
#include "PlatformDisplayWayland.h"
#endif
#if USE(WPE_RENDERER)
#include "PlatformDisplayLibWPE.h"
#endif
// gstglapi.h may include eglplatform.h and it includes X.h, which
// defines None, breaking MediaPlayer::None enum
#if PLATFORM(X11) && GST_GL_HAVE_PLATFORM_EGL
#undef None
#endif // PLATFORM(X11) && GST_GL_HAVE_PLATFORM_EGL
#include "VideoTextureCopierGStreamer.h"
#endif // USE(GSTREAMER_GL)
#if USE(TEXTURE_MAPPER_GL)
#include "BitmapTextureGL.h"
#include "BitmapTexturePool.h"
#include "TextureMapperContextAttributes.h"
#include "TextureMapperPlatformLayerBuffer.h"
#include "TextureMapperPlatformLayerProxy.h"
#if USE(CAIRO) && ENABLE(ACCELERATED_2D_CANVAS)
#include <cairo-gl.h>
#endif
#endif // USE(TEXTURE_MAPPER_GL)
GST_DEBUG_CATEGORY(webkit_media_player_debug);
#define GST_CAT_DEFAULT webkit_media_player_debug
namespace WebCore {
using namespace std;
#if USE(GSTREAMER_HOLEPUNCH)
static const FloatSize s_holePunchDefaultFrameSize(1280, 720);
#endif
static int greatestCommonDivisor(int a, int b)
{
while (b) {
int temp = a;
a = b;
b = temp % b;
}
return ABS(a);
}
#if USE(TEXTURE_MAPPER_GL)
class GstVideoFrameHolder : public TextureMapperPlatformLayerBuffer::UnmanagedBufferDataHolder {
public:
explicit GstVideoFrameHolder(GstSample* sample, Optional<GstVideoDecoderPlatform> videoDecoderPlatform, TextureMapperGL::Flags flags, bool gstGLEnabled)
: m_videoDecoderPlatform(videoDecoderPlatform)
{
RELEASE_ASSERT(GST_IS_SAMPLE(sample));
GstVideoInfo videoInfo;
if (UNLIKELY(!getSampleVideoInfo(sample, videoInfo)))
return;
m_size = IntSize(GST_VIDEO_INFO_WIDTH(&videoInfo), GST_VIDEO_INFO_HEIGHT(&videoInfo));
m_hasAlphaChannel = GST_VIDEO_INFO_HAS_ALPHA(&videoInfo);
m_buffer = gst_sample_get_buffer(sample);
if (UNLIKELY(!GST_IS_BUFFER(m_buffer)))
return;
#if USE(GSTREAMER_GL)
m_flags = flags | (m_hasAlphaChannel ? TextureMapperGL::ShouldBlend : 0);
if (gstGLEnabled) {
m_isMapped = gst_video_frame_map(&m_videoFrame, &videoInfo, m_buffer, static_cast<GstMapFlags>(GST_MAP_READ | GST_MAP_GL));
if (m_isMapped) {
m_textureID = *reinterpret_cast<GLuint*>(m_videoFrame.data[0]);
m_hasMappedTextures = true;
}
} else
#else
UNUSED_PARAM(flags);
UNUSED_PARAM(gstGLEnabled);
#endif // USE(GSTREAMER_GL)
{
m_textureID = 0;
m_isMapped = gst_video_frame_map(&m_videoFrame, &videoInfo, m_buffer, GST_MAP_READ);
if (m_isMapped) {
// Right now the TextureMapper only supports chromas with one plane
ASSERT(GST_VIDEO_INFO_N_PLANES(&videoInfo) == 1);
}
}
}
virtual ~GstVideoFrameHolder()
{
if (UNLIKELY(!m_isMapped))
return;
gst_video_frame_unmap(&m_videoFrame);
}
#if USE(GSTREAMER_GL)
virtual void waitForCPUSync()
{
GstGLSyncMeta* meta = gst_buffer_get_gl_sync_meta(m_buffer);
if (meta) {
GstMemory* mem = gst_buffer_peek_memory(m_buffer, 0);
GstGLContext* context = ((GstGLBaseMemory*)mem)->context;
gst_gl_sync_meta_wait_cpu(meta, context);
}
}
#endif // USE(GSTREAMER_GL)
const IntSize& size() const { return m_size; }
bool hasAlphaChannel() const { return m_hasAlphaChannel; }
TextureMapperGL::Flags flags() const { return m_flags; }
GLuint textureID() const { return m_textureID; }
bool hasMappedTextures() const { return m_hasMappedTextures; }
const GstVideoFrame& videoFrame() const { return m_videoFrame; }
void updateTexture(BitmapTextureGL& texture)
{
ASSERT(!m_textureID);
GstVideoGLTextureUploadMeta* meta;
if (m_buffer && (meta = gst_buffer_get_video_gl_texture_upload_meta(m_buffer))) {
if (meta->n_textures == 1) { // BRGx & BGRA formats use only one texture.
guint ids[4] = { texture.id(), 0, 0, 0 };
if (gst_video_gl_texture_upload_meta_upload(meta, ids))
return;
}
}
if (!m_isMapped)
return;
int stride = GST_VIDEO_FRAME_PLANE_STRIDE(&m_videoFrame, 0);
const void* srcData = GST_VIDEO_FRAME_PLANE_DATA(&m_videoFrame, 0);
if (!srcData)
return;
texture.updateContents(srcData, WebCore::IntRect(0, 0, m_size.width(), m_size.height()), WebCore::IntPoint(0, 0), stride);
}
std::unique_ptr<TextureMapperPlatformLayerBuffer> platformLayerBuffer()
{
if (!m_hasMappedTextures)
return nullptr;
using Buffer = TextureMapperPlatformLayerBuffer;
if ((GST_VIDEO_INFO_IS_RGB(&m_videoFrame.info) && GST_VIDEO_INFO_N_PLANES(&m_videoFrame.info) == 1))
return makeUnique<Buffer>(Buffer::TextureVariant { Buffer::RGBTexture { *static_cast<GLuint*>(m_videoFrame.data[0]) } }, m_size, m_flags, GL_RGBA);
if (GST_VIDEO_INFO_IS_YUV(&m_videoFrame.info)) {
if (GST_VIDEO_INFO_N_COMPONENTS(&m_videoFrame.info) < 3 || GST_VIDEO_INFO_N_PLANES(&m_videoFrame.info) > 3)
return nullptr;
if (m_videoDecoderPlatform && *m_videoDecoderPlatform == GstVideoDecoderPlatform::ImxVPU) {
// IMX VPU decoder decodes YUV data only into the Y texture from which the sampler
// then directly produces RGBA data. Textures for other planes aren't used, but
// that's decoder's problem. We have to treat that Y texture as having RGBA data.
return makeUnique<Buffer>(Buffer::TextureVariant { Buffer::RGBTexture { *static_cast<GLuint*>(m_videoFrame.data[0]) } }, m_size, m_flags, GL_RGBA);
}
unsigned numberOfPlanes = GST_VIDEO_INFO_N_PLANES(&m_videoFrame.info);
std::array<GLuint, 3> planes;
std::array<unsigned, 3> yuvPlane;
std::array<unsigned, 3> yuvPlaneOffset;
for (unsigned i = 0; i < numberOfPlanes; ++i)
planes[i] = *static_cast<GLuint*>(m_videoFrame.data[i]);
for (unsigned i = 0; i < 3; ++i) {
yuvPlane[i] = GST_VIDEO_INFO_COMP_PLANE(&m_videoFrame.info, i);
yuvPlaneOffset[i] = GST_VIDEO_INFO_COMP_POFFSET(&m_videoFrame.info, i);
}
std::array<GLfloat, 9> yuvToRgb;
if (gst_video_colorimetry_matches(&GST_VIDEO_INFO_COLORIMETRY(&m_videoFrame.info), GST_VIDEO_COLORIMETRY_BT709)) {
yuvToRgb = {
1.164f, 0.0f, 1.787f,
1.164f, -0.213f, -0.531f,
1.164f, 2.112f, 0.0f
};
} else {
// Default to bt601. This is the same behaviour as GStreamer's glcolorconvert element.
yuvToRgb = {
1.164f, 0.0f, 1.596f,
1.164f, -0.391f, -0.813f,
1.164f, 2.018f, 0.0f
};
}
return makeUnique<Buffer>( Buffer::TextureVariant { Buffer::YUVTexture { numberOfPlanes, planes, yuvPlane, yuvPlaneOffset, yuvToRgb } }, m_size, m_flags, GL_RGBA);
}
return nullptr;
}
private:
GstBuffer* m_buffer;
GstVideoFrame m_videoFrame { };
IntSize m_size;
bool m_hasAlphaChannel;
Optional<GstVideoDecoderPlatform> m_videoDecoderPlatform;
TextureMapperGL::Flags m_flags { };
GLuint m_textureID { 0 };
bool m_isMapped { false };
bool m_hasMappedTextures { false };
};
#endif
void MediaPlayerPrivateGStreamerBase::initializeDebugCategory()
{
GST_DEBUG_CATEGORY_INIT(webkit_media_player_debug, "webkitmediaplayer", 0, "WebKit media player");
}
MediaPlayerPrivateGStreamerBase::MediaPlayerPrivateGStreamerBase(MediaPlayer* player)
: m_notifier(MainThreadNotifier<MainThreadNotification>::create())
, m_player(player)
, m_fpsSink(nullptr)
, m_readyState(MediaPlayer::HaveNothing)
, m_networkState(MediaPlayer::Empty)
, m_drawTimer(RunLoop::main(), this, &MediaPlayerPrivateGStreamerBase::repaint)
#if USE(TEXTURE_MAPPER_GL)
#if USE(NICOSIA)
, m_nicosiaLayer(Nicosia::ContentLayer::create(Nicosia::ContentLayerTextureMapperImpl::createFactory(*this)))
#else
, m_platformLayerProxy(adoptRef(new TextureMapperPlatformLayerProxy()))
#endif
#endif
{
}
MediaPlayerPrivateGStreamerBase::~MediaPlayerPrivateGStreamerBase()
{
#if USE(GSTREAMER_GL)
if (m_videoDecoderPlatform == GstVideoDecoderPlatform::Video4Linux)
flushCurrentBuffer();
#endif
#if USE(TEXTURE_MAPPER_GL) && USE(NICOSIA)
downcast<Nicosia::ContentLayerTextureMapperImpl>(m_nicosiaLayer->impl()).invalidateClient();
#endif
m_notifier->invalidate();
if (m_videoSink) {
g_signal_handlers_disconnect_matched(m_videoSink.get(), G_SIGNAL_MATCH_DATA, 0, 0, nullptr, nullptr, this);
#if USE(GSTREAMER_GL)
if (GST_IS_BIN(m_videoSink.get())) {
GRefPtr<GstElement> appsink = adoptGRef(gst_bin_get_by_name(GST_BIN_CAST(m_videoSink.get()), "webkit-gl-video-sink"));
g_signal_handlers_disconnect_by_data(appsink.get(), this);
}
#endif
}
if (m_volumeElement)
g_signal_handlers_disconnect_matched(m_volumeElement.get(), G_SIGNAL_MATCH_DATA, 0, 0, nullptr, nullptr, this);
// This will release the GStreamer thread from m_drawCondition in non AC mode in case there's an ongoing triggerRepaint call
// waiting there, and ensure that any triggerRepaint call reaching the lock won't wait on m_drawCondition.
cancelRepaint(true);
#if ENABLE(ENCRYPTED_MEDIA)
m_cdmAttachmentSemaphore.signal();
#endif
// The change to GST_STATE_NULL state is always synchronous. So after this gets executed we don't need to worry
// about handlers running in the GStreamer thread.
if (m_pipeline)
gst_element_set_state(m_pipeline.get(), GST_STATE_NULL);
m_player = nullptr;
}
void MediaPlayerPrivateGStreamerBase::setPipeline(GstElement* pipeline)
{
m_pipeline = pipeline;
GRefPtr<GstBus> bus = adoptGRef(gst_pipeline_get_bus(GST_PIPELINE(m_pipeline.get())));
gst_bus_set_sync_handler(bus.get(), [](GstBus*, GstMessage* message, gpointer userData) {
auto& player = *static_cast<MediaPlayerPrivateGStreamerBase*>(userData);
if (player.handleSyncMessage(message)) {
gst_message_unref(message);
return GST_BUS_DROP;
}
return GST_BUS_PASS;
}, this, nullptr);
}
bool MediaPlayerPrivateGStreamerBase::handleSyncMessage(GstMessage* message)
{
UNUSED_PARAM(message);
if (GST_MESSAGE_TYPE(message) != GST_MESSAGE_NEED_CONTEXT)
return false;
const gchar* contextType;
gst_message_parse_context_type(message, &contextType);
GST_DEBUG_OBJECT(pipeline(), "Handling %s need-context message for %s", contextType, GST_MESSAGE_SRC_NAME(message));
if (!g_strcmp0(contextType, WEBKIT_WEB_SRC_PLAYER_CONTEXT_TYPE_NAME)) {
GRefPtr<GstContext> context = adoptGRef(gst_context_new(WEBKIT_WEB_SRC_PLAYER_CONTEXT_TYPE_NAME, FALSE));
GstStructure* contextStructure = gst_context_writable_structure(context.get());
ASSERT(m_player);
gst_structure_set(contextStructure, "player", G_TYPE_POINTER, m_player, nullptr);
gst_element_set_context(GST_ELEMENT(GST_MESSAGE_SRC(message)), context.get());
return true;
}
#if USE(GSTREAMER_GL)
GRefPtr<GstContext> elementContext = adoptGRef(requestGLContext(contextType));
if (elementContext) {
gst_element_set_context(GST_ELEMENT(message->src), elementContext.get());
return true;
}
#endif // USE(GSTREAMER_GL)
#if ENABLE(ENCRYPTED_MEDIA)
if (!g_strcmp0(contextType, "drm-preferred-decryption-system-id")) {
if (isMainThread()) {
GST_ERROR("can't handle drm-preferred-decryption-system-id need context message in the main thread");
ASSERT_NOT_REACHED();
return false;
}
GST_DEBUG_OBJECT(pipeline(), "handling drm-preferred-decryption-system-id need context message");
InitData initData;
{
LockHolder lock(m_protectionMutex);
ProtectionSystemEvents protectionSystemEvents(message);
GST_TRACE("found %zu protection events, %zu decryptors available", protectionSystemEvents.events().size(), protectionSystemEvents.availableSystems().size());
for (auto& event : protectionSystemEvents.events()) {
const char* eventKeySystemId = nullptr;
GstBuffer* data = nullptr;
gst_event_parse_protection(event.get(), &eventKeySystemId, &data, nullptr);
initData.append({eventKeySystemId, data});
m_handledProtectionEvents.add(GST_EVENT_SEQNUM(event.get()));
}
}
initializationDataEncountered(WTFMove(initData));
GST_INFO_OBJECT(pipeline(), "waiting for a CDM instance");
if (m_cdmAttachmentSemaphore.waitFor(4_s)
&& m_notifier->isValid() // Check the player is not being destroyed.
&& !m_cdmInstance->keySystem().isEmpty()) {
const char* preferredKeySystemUuid = GStreamerEMEUtilities::keySystemToUuid(m_cdmInstance->keySystem());
GST_INFO_OBJECT(pipeline(), "working with key system %s, continuing with key system %s on %s", m_cdmInstance->keySystem().utf8().data(), preferredKeySystemUuid, GST_MESSAGE_SRC_NAME(message));
GRefPtr<GstContext> context = adoptGRef(gst_context_new("drm-preferred-decryption-system-id", FALSE));
GstStructure* contextStructure = gst_context_writable_structure(context.get());
gst_structure_set(contextStructure, "decryption-system-id", G_TYPE_STRING, preferredKeySystemUuid, nullptr);
gst_element_set_context(GST_ELEMENT(GST_MESSAGE_SRC(message)), context.get());
} else
GST_WARNING("CDM instance not initializaed");
return true;
}
#endif // ENABLE(ENCRYPTED_MEDIA)
return false;
}
#if USE(GSTREAMER_GL)
GstContext* MediaPlayerPrivateGStreamerBase::requestGLContext(const char* contextType)
{
if (!ensureGstGLContext())
return nullptr;
if (!g_strcmp0(contextType, GST_GL_DISPLAY_CONTEXT_TYPE)) {
GstContext* displayContext = gst_context_new(GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);
gst_context_set_gl_display(displayContext, gstGLDisplay());
return displayContext;
}
if (!g_strcmp0(contextType, "gst.gl.app_context")) {
GstContext* appContext = gst_context_new("gst.gl.app_context", TRUE);
GstStructure* structure = gst_context_writable_structure(appContext);
#if GST_CHECK_VERSION(1, 12, 0)
gst_structure_set(structure, "context", GST_TYPE_GL_CONTEXT, gstGLContext(), nullptr);
#else
gst_structure_set(structure, "context", GST_GL_TYPE_CONTEXT, gstGLContext(), nullptr);
#endif
return appContext;
}
return nullptr;
}
bool MediaPlayerPrivateGStreamerBase::ensureGstGLContext()
{
if (m_glContext)
return true;
auto& sharedDisplay = PlatformDisplay::sharedDisplayForCompositing();
// The floating ref removal support was added in https://bugzilla.gnome.org/show_bug.cgi?id=743062.
bool shouldAdoptRef = webkitGstCheckVersion(1, 14, 0);
if (!m_glDisplay) {
#if PLATFORM(X11)
#if USE(GLX)
if (is<PlatformDisplayX11>(sharedDisplay)) {
GST_DEBUG_OBJECT(pipeline(), "Creating X11 shared GL display");
if (shouldAdoptRef)
m_glDisplay = adoptGRef(GST_GL_DISPLAY(gst_gl_display_x11_new_with_display(downcast<PlatformDisplayX11>(sharedDisplay).native())));
else
m_glDisplay = GST_GL_DISPLAY(gst_gl_display_x11_new_with_display(downcast<PlatformDisplayX11>(sharedDisplay).native()));
}
#elif USE(EGL)
if (is<PlatformDisplayX11>(sharedDisplay)) {
GST_DEBUG_OBJECT(pipeline(), "Creating X11 shared EGL display");
if (shouldAdoptRef)
m_glDisplay = adoptGRef(GST_GL_DISPLAY(gst_gl_display_egl_new_with_egl_display(downcast<PlatformDisplayX11>(sharedDisplay).eglDisplay())));
else
m_glDisplay = GST_GL_DISPLAY(gst_gl_display_egl_new_with_egl_display(downcast<PlatformDisplayX11>(sharedDisplay).eglDisplay()));
}
#endif
#endif
#if PLATFORM(WAYLAND)
if (is<PlatformDisplayWayland>(sharedDisplay)) {
GST_DEBUG_OBJECT(pipeline(), "Creating Wayland shared display");
if (shouldAdoptRef)
m_glDisplay = adoptGRef(GST_GL_DISPLAY(gst_gl_display_egl_new_with_egl_display(downcast<PlatformDisplayWayland>(sharedDisplay).eglDisplay())));
else
m_glDisplay = GST_GL_DISPLAY(gst_gl_display_egl_new_with_egl_display(downcast<PlatformDisplayWayland>(sharedDisplay).eglDisplay()));
}
#endif
#if USE(WPE_RENDERER)
if (is<PlatformDisplayLibWPE>(sharedDisplay)) {
GST_DEBUG_OBJECT(pipeline(), "Creating WPE shared EGL display");
if (shouldAdoptRef)
m_glDisplay = adoptGRef(GST_GL_DISPLAY(gst_gl_display_egl_new_with_egl_display(downcast<PlatformDisplayLibWPE>(sharedDisplay).eglDisplay())));
else
m_glDisplay = GST_GL_DISPLAY(gst_gl_display_egl_new_with_egl_display(downcast<PlatformDisplayLibWPE>(sharedDisplay).eglDisplay()));
}
#endif
ASSERT(m_glDisplay);
}
GLContext* webkitContext = sharedDisplay.sharingGLContext();
// EGL and GLX are mutually exclusive, no need for ifdefs here.
GstGLPlatform glPlatform = webkitContext->isEGLContext() ? GST_GL_PLATFORM_EGL : GST_GL_PLATFORM_GLX;
#if USE(OPENGL_ES)
GstGLAPI glAPI = GST_GL_API_GLES2;
#elif USE(OPENGL)
GstGLAPI glAPI = GST_GL_API_OPENGL;
#else
ASSERT_NOT_REACHED();
#endif
PlatformGraphicsContext3D contextHandle = webkitContext->platformContext();
if (!contextHandle)
return false;
if (shouldAdoptRef)
m_glContext = adoptGRef(gst_gl_context_new_wrapped(m_glDisplay.get(), reinterpret_cast<guintptr>(contextHandle), glPlatform, glAPI));
else
m_glContext = gst_gl_context_new_wrapped(m_glDisplay.get(), reinterpret_cast<guintptr>(contextHandle), glPlatform, glAPI);
// Activate and fill the GStreamer wrapped context with the Webkit's shared one.
auto previousActiveContext = GLContext::current();
webkitContext->makeContextCurrent();
if (gst_gl_context_activate(m_glContext.get(), TRUE)) {
GUniqueOutPtr<GError> error;
if (!gst_gl_context_fill_info(m_glContext.get(), &error.outPtr()))
GST_WARNING("Failed to fill in GStreamer context: %s", error->message);
gst_gl_context_activate(m_glContext.get(), FALSE);
} else
GST_WARNING("Failed to activate GStreamer context %" GST_PTR_FORMAT, m_glContext.get());
if (previousActiveContext)
previousActiveContext->makeContextCurrent();
return true;
}
#endif // USE(GSTREAMER_GL)
// Returns the size of the video
FloatSize MediaPlayerPrivateGStreamerBase::naturalSize() const
{
ASSERT(isMainThread());
#if USE(GSTREAMER_HOLEPUNCH)
// When using the holepuch we may not be able to get the video frames size, so we can't use
// it. But we need to report some non empty naturalSize for the player's GraphicsLayer
// to be properly created.
return s_holePunchDefaultFrameSize;
#endif
if (!hasVideo())
return FloatSize();
if (!m_videoSize.isEmpty())
return m_videoSize;
auto sampleLocker = holdLock(m_sampleMutex);
if (!GST_IS_SAMPLE(m_sample.get()))
return FloatSize();
GstCaps* caps = gst_sample_get_caps(m_sample.get());
if (!caps)
return FloatSize();
m_videoSize = naturalSizeFromCaps(caps);
GST_DEBUG_OBJECT(pipeline(), "Natural size: %.0fx%.0f", m_videoSize.width(), m_videoSize.height());
return m_videoSize;
}
FloatSize MediaPlayerPrivateGStreamerBase::naturalSizeFromCaps(GstCaps* caps) const
{
ASSERT(caps);
// TODO: handle possible clean aperture data. See
// https://bugzilla.gnome.org/show_bug.cgi?id=596571
// TODO: handle possible transformation matrix. See
// https://bugzilla.gnome.org/show_bug.cgi?id=596326
// Get the video PAR and original size, if this fails the
// video-sink has likely not yet negotiated its caps.
int pixelAspectRatioNumerator, pixelAspectRatioDenominator, stride;
IntSize originalSize;
GstVideoFormat format;
if (!getVideoSizeAndFormatFromCaps(caps, originalSize, format, pixelAspectRatioNumerator, pixelAspectRatioDenominator, stride))
return FloatSize();
#if USE(TEXTURE_MAPPER_GL)
// When using accelerated compositing, if the video is tagged as rotated 90 or 270 degrees, swap width and height.
if (m_renderingCanBeAccelerated) {
if (m_videoSourceOrientation.usesWidthAsHeight())
originalSize = originalSize.transposedSize();
}
#endif
GST_DEBUG_OBJECT(pipeline(), "Original video size: %dx%d", originalSize.width(), originalSize.height());
GST_DEBUG_OBJECT(pipeline(), "Pixel aspect ratio: %d/%d", pixelAspectRatioNumerator, pixelAspectRatioDenominator);
// Calculate DAR based on PAR and video size.
int displayWidth = originalSize.width() * pixelAspectRatioNumerator;
int displayHeight = originalSize.height() * pixelAspectRatioDenominator;
// Divide display width and height by their GCD to avoid possible overflows.
int displayAspectRatioGCD = greatestCommonDivisor(displayWidth, displayHeight);
displayWidth /= displayAspectRatioGCD;
displayHeight /= displayAspectRatioGCD;
// Apply DAR to original video size. This is the same behavior as in xvimagesink's setcaps function.
guint64 width = 0, height = 0;
if (!(originalSize.height() % displayHeight)) {
GST_DEBUG_OBJECT(pipeline(), "Keeping video original height");
width = gst_util_uint64_scale_int(originalSize.height(), displayWidth, displayHeight);
height = static_cast<guint64>(originalSize.height());
} else if (!(originalSize.width() % displayWidth)) {
GST_DEBUG_OBJECT(pipeline(), "Keeping video original width");
height = gst_util_uint64_scale_int(originalSize.width(), displayHeight, displayWidth);
width = static_cast<guint64>(originalSize.width());
} else {
GST_DEBUG_OBJECT(pipeline(), "Approximating while keeping original video height");
width = gst_util_uint64_scale_int(originalSize.height(), displayWidth, displayHeight);
height = static_cast<guint64>(originalSize.height());
}
return FloatSize(static_cast<int>(width), static_cast<int>(height));
}
void MediaPlayerPrivateGStreamerBase::setVolume(float volume)
{
if (!m_volumeElement)
return;
GST_DEBUG_OBJECT(pipeline(), "Setting volume: %f", volume);
gst_stream_volume_set_volume(m_volumeElement.get(), GST_STREAM_VOLUME_FORMAT_LINEAR, static_cast<double>(volume));
}
float MediaPlayerPrivateGStreamerBase::volume() const
{
if (!m_volumeElement)
return 0;
return gst_stream_volume_get_volume(m_volumeElement.get(), GST_STREAM_VOLUME_FORMAT_LINEAR);
}
void MediaPlayerPrivateGStreamerBase::notifyPlayerOfVolumeChange()
{
if (!m_player || !m_volumeElement)
return;
double volume;
volume = gst_stream_volume_get_volume(m_volumeElement.get(), GST_STREAM_VOLUME_FORMAT_LINEAR);
// get_volume() can return values superior to 1.0 if the user
// applies software user gain via third party application (GNOME
// volume control for instance).
volume = CLAMP(volume, 0.0, 1.0);
m_player->volumeChanged(static_cast<float>(volume));
}
void MediaPlayerPrivateGStreamerBase::volumeChangedCallback(MediaPlayerPrivateGStreamerBase* player)
{
// This is called when m_volumeElement receives the notify::volume signal.
GST_DEBUG_OBJECT(player->pipeline(), "Volume changed to: %f", player->volume());
player->m_notifier->notify(MainThreadNotification::VolumeChanged, [player] {
player->notifyPlayerOfVolumeChange();
});
}
MediaPlayer::NetworkState MediaPlayerPrivateGStreamerBase::networkState() const
{
return m_networkState;
}
MediaPlayer::ReadyState MediaPlayerPrivateGStreamerBase::readyState() const
{
return m_readyState;
}
void MediaPlayerPrivateGStreamerBase::setMuted(bool mute)
{
if (!m_volumeElement)
return;
bool currentValue = muted();
if (currentValue == mute)
return;
GST_INFO_OBJECT(pipeline(), "Set muted to %s", toString(mute).utf8().data());
g_object_set(m_volumeElement.get(), "mute", mute, nullptr);
}
bool MediaPlayerPrivateGStreamerBase::muted() const
{
if (!m_volumeElement)
return false;
gboolean muted;
g_object_get(m_volumeElement.get(), "mute", &muted, nullptr);
GST_INFO_OBJECT(pipeline(), "Player is muted: %s", toString(static_cast<bool>(muted)).utf8().data());
return muted;
}
void MediaPlayerPrivateGStreamerBase::notifyPlayerOfMute()
{
if (!m_player || !m_volumeElement)
return;
gboolean muted;
g_object_get(m_volumeElement.get(), "mute", &muted, nullptr);
m_player->muteChanged(static_cast<bool>(muted));
}
void MediaPlayerPrivateGStreamerBase::muteChangedCallback(MediaPlayerPrivateGStreamerBase* player)
{
// This is called when m_volumeElement receives the notify::mute signal.
player->m_notifier->notify(MainThreadNotification::MuteChanged, [player] {
player->notifyPlayerOfMute();
});
}
void MediaPlayerPrivateGStreamerBase::acceleratedRenderingStateChanged()
{
m_renderingCanBeAccelerated = m_player && m_player->client().mediaPlayerAcceleratedCompositingEnabled();
}
#if USE(TEXTURE_MAPPER_GL)
PlatformLayer* MediaPlayerPrivateGStreamerBase::platformLayer() const
{
#if USE(NICOSIA)
return m_nicosiaLayer.ptr();
#else
return const_cast<MediaPlayerPrivateGStreamerBase*>(this);
#endif
}
#if USE(NICOSIA)
void MediaPlayerPrivateGStreamerBase::swapBuffersIfNeeded()
{
#if USE(GSTREAMER_HOLEPUNCH)
pushNextHolePunchBuffer();
#endif
}
#else
RefPtr<TextureMapperPlatformLayerProxy> MediaPlayerPrivateGStreamerBase::proxy() const
{
return m_platformLayerProxy.copyRef();
}
void MediaPlayerPrivateGStreamerBase::swapBuffersIfNeeded()
{
#if USE(GSTREAMER_HOLEPUNCH)
pushNextHolePunchBuffer();
#endif
}
#endif
void MediaPlayerPrivateGStreamerBase::pushTextureToCompositor()
{
auto sampleLocker = holdLock(m_sampleMutex);
if (!GST_IS_SAMPLE(m_sample.get()))
return;
auto proxyOperation =
[this](TextureMapperPlatformLayerProxy& proxy)
{
LockHolder holder(proxy.lock());
if (!proxy.isActive())
return;
std::unique_ptr<GstVideoFrameHolder> frameHolder = makeUnique<GstVideoFrameHolder>(m_sample.get(), m_videoDecoderPlatform, m_textureMapperFlags, !m_usingFallbackVideoSink);
std::unique_ptr<TextureMapperPlatformLayerBuffer> layerBuffer;
if (frameHolder->hasMappedTextures()) {
layerBuffer = frameHolder->platformLayerBuffer();
if (!layerBuffer)
return;
layerBuffer->setUnmanagedBufferDataHolder(WTFMove(frameHolder));
} else {
layerBuffer = proxy.getAvailableBuffer(frameHolder->size(), GL_DONT_CARE);
if (UNLIKELY(!layerBuffer)) {
auto texture = BitmapTextureGL::create(TextureMapperContextAttributes::get());
texture->reset(frameHolder->size(), frameHolder->hasAlphaChannel() ? BitmapTexture::SupportsAlpha : BitmapTexture::NoFlag);
layerBuffer = makeUnique<TextureMapperPlatformLayerBuffer>(WTFMove(texture));
}
frameHolder->updateTexture(layerBuffer->textureGL());
layerBuffer->setExtraFlags(m_textureMapperFlags | (frameHolder->hasAlphaChannel() ? TextureMapperGL::ShouldBlend : 0));
}
proxy.pushNextBuffer(WTFMove(layerBuffer));
};
#if USE(NICOSIA)
proxyOperation(downcast<Nicosia::ContentLayerTextureMapperImpl>(m_nicosiaLayer->impl()).proxy());
#else
proxyOperation(*m_platformLayerProxy);
#endif
}
#endif // USE(TEXTURE_MAPPER_GL)
void MediaPlayerPrivateGStreamerBase::repaint()
{
ASSERT(m_sample);
ASSERT(isMainThread());
m_player->repaint();
LockHolder lock(m_drawMutex);
m_drawCondition.notifyOne();
}
bool MediaPlayerPrivateGStreamerBase::doSamplesHaveDifferentNaturalSizes(GstSample* sampleA, GstSample* sampleB) const
{
ASSERT(sampleA);
ASSERT(sampleB);
GstCaps* capsA = gst_sample_get_caps(sampleA);
GstCaps* capsB = gst_sample_get_caps(sampleB);
if (LIKELY(capsA == capsB))
return false;
return naturalSizeFromCaps(capsA) != naturalSizeFromCaps(capsB);
}
void MediaPlayerPrivateGStreamerBase::triggerRepaint(GstSample* sample)
{
bool triggerResize;
{
auto sampleLocker = holdLock(m_sampleMutex);
triggerResize = !m_sample || doSamplesHaveDifferentNaturalSizes(m_sample.get(), sample);
if (triggerResize)
m_videoSize = FloatSize(); // Force re-calculation in next call to naturalSize().
m_sample = sample;
}
if (triggerResize) {
GST_DEBUG_OBJECT(pipeline(), "First sample reached the sink, triggering video dimensions update");
m_notifier->notify(MainThreadNotification::SizeChanged, [this] {
m_player->sizeChanged();
});
}
if (!m_renderingCanBeAccelerated) {
LockHolder locker(m_drawMutex);
if (m_destroying)
return;
m_drawTimer.startOneShot(0_s);
m_drawCondition.wait(m_drawMutex);
return;
}
#if USE(TEXTURE_MAPPER_GL)
if (m_usingFallbackVideoSink) {
LockHolder lock(m_drawMutex);
auto proxyOperation =
[this](TextureMapperPlatformLayerProxy& proxy)
{
return proxy.scheduleUpdateOnCompositorThread([this] { this->pushTextureToCompositor(); });
};
#if USE(NICOSIA)
if (!proxyOperation(downcast<Nicosia::ContentLayerTextureMapperImpl>(m_nicosiaLayer->impl()).proxy()))
return;
#else
if (!proxyOperation(*m_platformLayerProxy))
return;
#endif
m_drawTimer.startOneShot(0_s);
m_drawCondition.wait(m_drawMutex);
} else
pushTextureToCompositor();
#endif // USE(TEXTURE_MAPPER_GL)
}
void MediaPlayerPrivateGStreamerBase::repaintCallback(MediaPlayerPrivateGStreamerBase* player, GstSample* sample)
{
player->triggerRepaint(sample);
}
void MediaPlayerPrivateGStreamerBase::cancelRepaint(bool destroying)
{
// The goal of this function is to release the GStreamer thread from m_drawCondition in triggerRepaint() in non-AC case,
// to avoid a deadlock if the player gets paused while waiting for drawing (see https://bugs.webkit.org/show_bug.cgi?id=170003):
// the main thread is waiting for the GStreamer thread to pause, but the GStreamer thread is locked waiting for the
// main thread to draw. This deadlock doesn't happen when using AC because the sample is processed (not painted) in the compositor
// thread, so the main thread can request the pause and wait if the GStreamer thread is waiting for the compositor thread.
//
// This function is also used when destroying the player (destroying parameter is true), to release the gstreamer thread from
// m_drawCondition and to ensure that new triggerRepaint calls won't wait on m_drawCondition.
if (!m_renderingCanBeAccelerated) {
LockHolder locker(m_drawMutex);
m_drawTimer.stop();
m_destroying = destroying;
m_drawCondition.notifyOne();
}
}
void MediaPlayerPrivateGStreamerBase::repaintCancelledCallback(MediaPlayerPrivateGStreamerBase* player)
{
player->cancelRepaint();
}
#if USE(GSTREAMER_GL)
GstFlowReturn MediaPlayerPrivateGStreamerBase::newSampleCallback(GstElement* sink, MediaPlayerPrivateGStreamerBase* player)
{
GRefPtr<GstSample> sample = adoptGRef(gst_app_sink_pull_sample(GST_APP_SINK(sink)));
player->triggerRepaint(sample.get());
return GST_FLOW_OK;
}
GstFlowReturn MediaPlayerPrivateGStreamerBase::newPrerollCallback(GstElement* sink, MediaPlayerPrivateGStreamerBase* player)
{
GRefPtr<GstSample> sample = adoptGRef(gst_app_sink_pull_preroll(GST_APP_SINK(sink)));
player->triggerRepaint(sample.get());
return GST_FLOW_OK;
}
void MediaPlayerPrivateGStreamerBase::flushCurrentBuffer()
{
auto sampleLocker = holdLock(m_sampleMutex);
if (m_sample) {
// Replace by a new sample having only the caps, so this dummy sample is still useful to get the dimensions.
// This prevents resizing problems when the video changes its quality and a DRAIN is performed.
const GstStructure* info = gst_sample_get_info(m_sample.get());
m_sample = adoptGRef(gst_sample_new(nullptr, gst_sample_get_caps(m_sample.get()),
gst_sample_get_segment(m_sample.get()), info ? gst_structure_copy(info) : nullptr));
}
bool shouldWait = m_videoDecoderPlatform == GstVideoDecoderPlatform::Video4Linux;
auto proxyOperation = [shouldWait, pipeline = pipeline()](TextureMapperPlatformLayerProxy& proxy) {
GST_DEBUG_OBJECT(pipeline, "Flushing video sample %s", shouldWait ? "synchronously" : "");
LockHolder locker(!shouldWait ? &proxy.lock() : nullptr);
if (proxy.isActive())
proxy.dropCurrentBufferWhilePreservingTexture(shouldWait);
};
#if USE(NICOSIA)
proxyOperation(downcast<Nicosia::ContentLayerTextureMapperImpl>(m_nicosiaLayer->impl()).proxy());
#else
proxyOperation(*m_platformLayerProxy);
#endif
}
#endif
void MediaPlayerPrivateGStreamerBase::setSize(const IntSize& size)
{
m_size = size;
}
void MediaPlayerPrivateGStreamerBase::paint(GraphicsContext& context, const FloatRect& rect)
{
if (context.paintingDisabled())
return;
if (!m_player->visible())
return;
auto sampleLocker = holdLock(m_sampleMutex);
if (!GST_IS_SAMPLE(m_sample.get()))
return;
#if USE(GSTREAMER_GL)
// Ensure the input is RGBA. We handle YUV video natively, so we need to do
// this conversion on-demand here.
GstBuffer* buffer = gst_sample_get_buffer(m_sample.get());
if (UNLIKELY(!GST_IS_BUFFER(buffer)))
return;
GstCaps* caps = gst_sample_get_caps(m_sample.get());
GstVideoInfo videoInfo;
gst_video_info_init(&videoInfo);
if (!gst_video_info_from_caps(&videoInfo, caps))
return;
if (!GST_VIDEO_INFO_IS_RGB(&videoInfo)) {
if (!m_colorConvert) {
GstMemory* mem = gst_buffer_peek_memory(buffer, 0);
GstGLContext* context = ((GstGLBaseMemory*)mem)->context;
m_colorConvert = adoptGRef(gst_gl_color_convert_new(context));
}
if (!m_colorConvertInputCaps || !gst_caps_is_equal(m_colorConvertInputCaps.get(), caps)) {
m_colorConvertInputCaps = caps;
m_colorConvertOutputCaps = adoptGRef(gst_caps_copy(caps));
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
const gchar* formatString = GST_VIDEO_INFO_HAS_ALPHA(&videoInfo) ? "RGBA" : "BGRx";
#else
const gchar* formatString = GST_VIDEO_INFO_HAS_ALPHA(&videoInfo) ? "RGBA" : "RGBx";
#endif
gst_caps_set_simple(m_colorConvertOutputCaps.get(), "format", G_TYPE_STRING, formatString, nullptr);
if (!gst_gl_color_convert_set_caps(m_colorConvert.get(), caps, m_colorConvertOutputCaps.get()))
return;
}
GRefPtr<GstBuffer> rgbBuffer = adoptGRef(gst_gl_color_convert_perform(m_colorConvert.get(), buffer));
if (UNLIKELY(!GST_IS_BUFFER(rgbBuffer.get())))
return;
const GstStructure* info = gst_sample_get_info(m_sample.get());
m_sample = adoptGRef(gst_sample_new(rgbBuffer.get(), m_colorConvertOutputCaps.get(),
gst_sample_get_segment(m_sample.get()), info ? gst_structure_copy(info) : nullptr));
}
#endif
auto gstImage = ImageGStreamer::createImage(m_sample.get());
if (!gstImage)
return;
context.drawImage(gstImage->image(), rect, gstImage->rect(), { CompositeCopy, m_renderingCanBeAccelerated ? m_videoSourceOrientation : ImageOrientation() });
}
#if USE(GSTREAMER_GL)
bool MediaPlayerPrivateGStreamerBase::copyVideoTextureToPlatformTexture(GraphicsContext3D* context, Platform3DObject outputTexture, GC3Denum outputTarget, GC3Dint level, GC3Denum internalFormat, GC3Denum format, GC3Denum type, bool premultiplyAlpha, bool flipY)
{
UNUSED_PARAM(context);
if (m_usingFallbackVideoSink)
return false;
if (premultiplyAlpha)
return false;
auto sampleLocker = holdLock(m_sampleMutex);
if (!GST_IS_SAMPLE(m_sample.get()))
return false;
std::unique_ptr<GstVideoFrameHolder> frameHolder = makeUnique<GstVideoFrameHolder>(m_sample.get(), m_videoDecoderPlatform, m_textureMapperFlags, true);
std::unique_ptr<TextureMapperPlatformLayerBuffer> layerBuffer = frameHolder->platformLayerBuffer();
if (!layerBuffer)
return false;
auto size = frameHolder->size();
if (m_videoSourceOrientation.usesWidthAsHeight())
size = size.transposedSize();
if (!m_videoTextureCopier)
m_videoTextureCopier = makeUnique<VideoTextureCopierGStreamer>(TEXTURE_COPIER_COLOR_CONVERT_FLAG);
frameHolder->waitForCPUSync();
return m_videoTextureCopier->copyVideoTextureToPlatformTexture(*layerBuffer.get(), size, outputTexture, outputTarget, level, internalFormat, format, type, flipY, m_videoSourceOrientation);
}
NativeImagePtr MediaPlayerPrivateGStreamerBase::nativeImageForCurrentTime()
{
#if USE(CAIRO) && ENABLE(ACCELERATED_2D_CANVAS)
if (m_usingFallbackVideoSink)
return nullptr;
auto sampleLocker = holdLock(m_sampleMutex);
if (!GST_IS_SAMPLE(m_sample.get()))
return nullptr;
std::unique_ptr<GstVideoFrameHolder> frameHolder = makeUnique<GstVideoFrameHolder>(m_sample.get(), m_videoDecoderPlatform, m_textureMapperFlags, true);
std::unique_ptr<TextureMapperPlatformLayerBuffer> layerBuffer = frameHolder->platformLayerBuffer();
if (!layerBuffer)
return nullptr;
auto size = frameHolder->size();
if (m_videoSourceOrientation.usesWidthAsHeight())
size = size.transposedSize();
GLContext* context = PlatformDisplay::sharedDisplayForCompositing().sharingGLContext();
context->makeContextCurrent();
if (!m_videoTextureCopier)
m_videoTextureCopier = makeUnique<VideoTextureCopierGStreamer>(TEXTURE_COPIER_COLOR_CONVERT_FLAG);
frameHolder->waitForCPUSync();
if (!m_videoTextureCopier->copyVideoTextureToPlatformTexture(*layerBuffer.get(), size, 0, GL_TEXTURE_2D, 0, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, false, m_videoSourceOrientation))
return nullptr;
return adoptRef(cairo_gl_surface_create_for_texture(context->cairoDevice(), CAIRO_CONTENT_COLOR_ALPHA, m_videoTextureCopier->resultTexture(), size.width(), size.height()));
#else
return nullptr;
#endif
}
#endif // USE(GSTREAMER_GL)
void MediaPlayerPrivateGStreamerBase::setVideoSourceOrientation(ImageOrientation orientation)
{
if (m_videoSourceOrientation == orientation)
return;
m_videoSourceOrientation = orientation;
#if USE(TEXTURE_MAPPER_GL)
updateTextureMapperFlags();
#endif
}
#if USE(TEXTURE_MAPPER_GL)
void MediaPlayerPrivateGStreamerBase::updateTextureMapperFlags()
{
switch (m_videoSourceOrientation) {
case ImageOrientation::OriginTopLeft:
m_textureMapperFlags = 0;
break;
case ImageOrientation::OriginRightTop:
m_textureMapperFlags = TextureMapperGL::ShouldRotateTexture90;
break;
case ImageOrientation::OriginBottomRight:
m_textureMapperFlags = TextureMapperGL::ShouldRotateTexture180;
break;
case ImageOrientation::OriginLeftBottom:
m_textureMapperFlags = TextureMapperGL::ShouldRotateTexture270;
break;
default:
// FIXME: Handle OriginTopRight, OriginBottomLeft, OriginLeftTop and OriginRightBottom?
m_textureMapperFlags = 0;
break;
}
}
#endif
bool MediaPlayerPrivateGStreamerBase::supportsFullscreen() const
{
return true;
}
MediaPlayer::MovieLoadType MediaPlayerPrivateGStreamerBase::movieLoadType() const
{
if (m_readyState == MediaPlayer::HaveNothing)
return MediaPlayer::Unknown;
if (isLiveStream())
return MediaPlayer::LiveStream;
return MediaPlayer::Download;
}
#if USE(GSTREAMER_GL)
GstElement* MediaPlayerPrivateGStreamerBase::createGLAppSink()
{
GstElement* appsink = gst_element_factory_make("appsink", "webkit-gl-video-sink");
if (!appsink)
return nullptr;
g_object_set(appsink, "enable-last-sample", FALSE, "emit-signals", TRUE, "max-buffers", 1, nullptr);
g_signal_connect(appsink, "new-sample", G_CALLBACK(newSampleCallback), this);
g_signal_connect(appsink, "new-preroll", G_CALLBACK(newPrerollCallback), this);
GRefPtr<GstPad> pad = adoptGRef(gst_element_get_static_pad(appsink, "sink"));
gst_pad_add_probe(pad.get(), static_cast<GstPadProbeType>(GST_PAD_PROBE_TYPE_PUSH | GST_PAD_PROBE_TYPE_QUERY_DOWNSTREAM | GST_PAD_PROBE_TYPE_EVENT_FLUSH), [] (GstPad*, GstPadProbeInfo* info, gpointer userData) -> GstPadProbeReturn {
// In some platforms (e.g. OpenMAX on the Raspberry Pi) when a resolution change occurs the
// pipeline has to be drained before a frame with the new resolution can be decoded.
// In this context, it's important that we don't hold references to any previous frame
// (e.g. m_sample) so that decoding can continue.
// We are also not supposed to keep the original frame after a flush.
if (info->type & GST_PAD_PROBE_TYPE_QUERY_DOWNSTREAM) {
if (GST_QUERY_TYPE(GST_PAD_PROBE_INFO_QUERY(info)) != GST_QUERY_DRAIN)
return GST_PAD_PROBE_OK;
GST_DEBUG("Acting upon DRAIN query");
}
if (info->type & GST_PAD_PROBE_TYPE_EVENT_FLUSH) {
if (GST_EVENT_TYPE(GST_PAD_PROBE_INFO_EVENT(info)) != GST_EVENT_FLUSH_START)
return GST_PAD_PROBE_OK;
GST_DEBUG("Acting upon flush-start event");
}
auto* player = static_cast<MediaPlayerPrivateGStreamerBase*>(userData);
player->flushCurrentBuffer();
return GST_PAD_PROBE_OK;
}, this, nullptr);
return appsink;
}
GstElement* MediaPlayerPrivateGStreamerBase::createVideoSinkGL()
{
gboolean result = TRUE;
GstElement* videoSink = gst_bin_new(nullptr);
GstElement* upload = gst_element_factory_make("glupload", nullptr);
GstElement* colorconvert = gst_element_factory_make("glcolorconvert", nullptr);
GstElement* appsink = createGLAppSink();
// glsinkbin is not used because it includes glcolorconvert which only process RGBA,
// but we can display YUV formats too.
if (!appsink || !upload || !colorconvert) {
GST_WARNING("Failed to create GstGL elements");
gst_object_unref(videoSink);
if (upload)
gst_object_unref(upload);
if (colorconvert)
gst_object_unref(colorconvert);
if (appsink)
gst_object_unref(appsink);
g_warning("WebKit wasn't able to find the GStreamer opengl plugin. Hardware-accelerated zero-copy video rendering can't be enabled without this plugin.");
return nullptr;
}
gst_bin_add_many(GST_BIN(videoSink), upload, colorconvert, appsink, nullptr);
GRefPtr<GstCaps> caps = adoptGRef(gst_caps_from_string("video/x-raw, format = (string) " GST_GL_CAPS_FORMAT));
gst_caps_set_features(caps.get(), 0, gst_caps_features_new(GST_CAPS_FEATURE_MEMORY_GL_MEMORY, nullptr));
g_object_set(appsink, "caps", caps.get(), nullptr);
result &= gst_element_link_many(upload, colorconvert, appsink, nullptr);
GRefPtr<GstPad> pad = adoptGRef(gst_element_get_static_pad(upload, "sink"));
gst_element_add_pad(videoSink, gst_ghost_pad_new("sink", pad.get()));
if (!result) {
GST_WARNING("Failed to link GstGL elements");
gst_object_unref(videoSink);
videoSink = nullptr;
}
return videoSink;
}
void MediaPlayerPrivateGStreamerBase::ensureGLVideoSinkContext()
{
if (!m_glDisplayElementContext)
m_glDisplayElementContext = adoptGRef(requestGLContext(GST_GL_DISPLAY_CONTEXT_TYPE));
if (m_glDisplayElementContext)
gst_element_set_context(m_videoSink.get(), m_glDisplayElementContext.get());
if (!m_glAppElementContext)
m_glAppElementContext = adoptGRef(requestGLContext("gst.gl.app_context"));
if (m_glAppElementContext)
gst_element_set_context(m_videoSink.get(), m_glAppElementContext.get());
}
#endif // USE(GSTREAMER_GL)
#if USE(GSTREAMER_HOLEPUNCH)
static void setRectangleToVideoSink(GstElement* videoSink, const IntRect& rect)
{
// Here goes the platform-dependant code to set to the videoSink the size
// and position of the video rendering window. Mark them unused as default.
UNUSED_PARAM(videoSink);
UNUSED_PARAM(rect);
}
class GStreamerHolePunchClient : public TextureMapperPlatformLayerBuffer::HolePunchClient {
public:
GStreamerHolePunchClient(GRefPtr<GstElement>&& videoSink) : m_videoSink(WTFMove(videoSink)) { };
void setVideoRectangle(const IntRect& rect) final { setRectangleToVideoSink(m_videoSink.get(), rect); }
private:
GRefPtr<GstElement> m_videoSink;
};
GstElement* MediaPlayerPrivateGStreamerBase::createHolePunchVideoSink()
{
// Here goes the platform-dependant code to create the videoSink. As a default
// we use a fakeVideoSink so nothing is drawn to the page.
GstElement* videoSink = gst_element_factory_make("fakevideosink", nullptr);
return videoSink;
}
void MediaPlayerPrivateGStreamerBase::pushNextHolePunchBuffer()
{
auto proxyOperation =
[this](TextureMapperPlatformLayerProxy& proxy)
{
LockHolder holder(proxy.lock());
std::unique_ptr<TextureMapperPlatformLayerBuffer> layerBuffer = makeUnique<TextureMapperPlatformLayerBuffer>(0, m_size, TextureMapperGL::ShouldNotBlend, GL_DONT_CARE);
std::unique_ptr<GStreamerHolePunchClient> holePunchClient = makeUnique<GStreamerHolePunchClient>(m_videoSink.get());
layerBuffer->setHolePunchClient(WTFMove(holePunchClient));
proxy.pushNextBuffer(WTFMove(layerBuffer));
};
#if USE(NICOSIA)
proxyOperation(downcast<Nicosia::ContentLayerTextureMapperImpl>(m_nicosiaLayer->impl()).proxy());
#else
proxyOperation(*m_platformLayerProxy);
#endif
}
#endif
GstElement* MediaPlayerPrivateGStreamerBase::createVideoSink()
{
acceleratedRenderingStateChanged();
#if USE(GSTREAMER_HOLEPUNCH)
m_videoSink = createHolePunchVideoSink();
pushNextHolePunchBuffer();
return m_videoSink.get();
#endif
#if USE(GSTREAMER_GL)
if (m_renderingCanBeAccelerated)
m_videoSink = createVideoSinkGL();
#endif
if (!m_videoSink) {
m_usingFallbackVideoSink = true;
m_videoSink = webkitVideoSinkNew();
g_signal_connect_swapped(m_videoSink.get(), "repaint-requested", G_CALLBACK(repaintCallback), this);
g_signal_connect_swapped(m_videoSink.get(), "repaint-cancelled", G_CALLBACK(repaintCancelledCallback), this);
}
GstElement* videoSink = nullptr;
#if ENABLE(MEDIA_STATISTICS)
m_fpsSink = gst_element_factory_make("fpsdisplaysink", "sink");
if (m_fpsSink) {
g_object_set(m_fpsSink.get(), "silent", TRUE , nullptr);
// Turn off text overlay unless tracing is enabled.
if (gst_debug_category_get_threshold(webkit_media_player_debug) < GST_LEVEL_TRACE)
g_object_set(m_fpsSink.get(), "text-overlay", FALSE , nullptr);
if (g_object_class_find_property(G_OBJECT_GET_CLASS(m_fpsSink.get()), "video-sink")) {
g_object_set(m_fpsSink.get(), "video-sink", m_videoSink.get(), nullptr);
videoSink = m_fpsSink.get();
} else
m_fpsSink = nullptr;
}
#endif
if (!m_fpsSink)
videoSink = m_videoSink.get();
ASSERT(videoSink);
return videoSink;
}
void MediaPlayerPrivateGStreamerBase::setStreamVolumeElement(GstStreamVolume* volume)
{
ASSERT(!m_volumeElement);
m_volumeElement = volume;
// We don't set the initial volume because we trust the sink to keep it for us. See
// https://bugs.webkit.org/show_bug.cgi?id=118974 for more information.
if (!m_player->platformVolumeConfigurationRequired()) {
GST_DEBUG_OBJECT(pipeline(), "Setting stream volume to %f", m_player->volume());
gst_stream_volume_set_volume(m_volumeElement.get(), GST_STREAM_VOLUME_FORMAT_LINEAR, static_cast<double>(m_player->volume()));
} else
GST_DEBUG_OBJECT(pipeline(), "Not setting stream volume, trusting system one");
GST_DEBUG_OBJECT(pipeline(), "Setting stream muted %s", toString(m_player->muted()).utf8().data());
g_object_set(m_volumeElement.get(), "mute", m_player->muted(), nullptr);
g_signal_connect_swapped(m_volumeElement.get(), "notify::volume", G_CALLBACK(volumeChangedCallback), this);
g_signal_connect_swapped(m_volumeElement.get(), "notify::mute", G_CALLBACK(muteChangedCallback), this);
}
unsigned MediaPlayerPrivateGStreamerBase::decodedFrameCount() const
{
guint64 decodedFrames = 0;
if (m_fpsSink)
g_object_get(m_fpsSink.get(), "frames-rendered", &decodedFrames, nullptr);
return static_cast<unsigned>(decodedFrames);
}
unsigned MediaPlayerPrivateGStreamerBase::droppedFrameCount() const
{
guint64 framesDropped = 0;
if (m_fpsSink)
g_object_get(m_fpsSink.get(), "frames-dropped", &framesDropped, nullptr);
return static_cast<unsigned>(framesDropped);
}
unsigned MediaPlayerPrivateGStreamerBase::audioDecodedByteCount() const
{
GstQuery* query = gst_query_new_position(GST_FORMAT_BYTES);
gint64 position = 0;
if (audioSink() && gst_element_query(audioSink(), query))
gst_query_parse_position(query, 0, &position);
gst_query_unref(query);
return static_cast<unsigned>(position);
}
unsigned MediaPlayerPrivateGStreamerBase::videoDecodedByteCount() const
{
GstQuery* query = gst_query_new_position(GST_FORMAT_BYTES);
gint64 position = 0;
if (gst_element_query(m_videoSink.get(), query))
gst_query_parse_position(query, 0, &position);
gst_query_unref(query);
return static_cast<unsigned>(position);
}
#if ENABLE(ENCRYPTED_MEDIA)
void MediaPlayerPrivateGStreamerBase::initializationDataEncountered(InitData&& initData)
{
ASSERT(!isMainThread());
RunLoop::main().dispatch([weakThis = makeWeakPtr(*this), initData = WTFMove(initData)] {
if (!weakThis)
return;
GST_DEBUG("scheduling initializationDataEncountered event of size %zu", initData.payload()->size());
GST_MEMDUMP("init datas", reinterpret_cast<const uint8_t*>(initData.payload()->data()), initData.payload()->size());
weakThis->m_player->initializationDataEncountered(initData.payloadContainerType(), initData.payload()->tryCreateArrayBuffer());
});
}
void MediaPlayerPrivateGStreamerBase::cdmInstanceAttached(CDMInstance& instance)
{
ASSERT(isMainThread());
if (m_cdmInstance == &instance)
return;
if (!m_pipeline) {
GST_ERROR("no pipeline yet");
ASSERT_NOT_REACHED();
return;
}
m_cdmInstance = &instance;
GRefPtr<GstContext> context = adoptGRef(gst_context_new("drm-cdm-instance", FALSE));
GstStructure* contextStructure = gst_context_writable_structure(context.get());
gst_structure_set(contextStructure, "cdm-instance", G_TYPE_POINTER, m_cdmInstance->proxyCDM().get(), nullptr);
gst_element_set_context(GST_ELEMENT(m_pipeline.get()), context.get());
GST_DEBUG_OBJECT(m_pipeline.get(), "CDM proxy instance %p dispatched as context", m_cdmInstance->proxyCDM().get());
m_cdmAttachmentSemaphore.signal();
}
void MediaPlayerPrivateGStreamerBase::cdmInstanceDetached(CDMInstance& instance)
{
ASSERT(isMainThread());
if (m_cdmInstance != &instance) {
GST_WARNING("passed CDMInstance %p is different from stored one %p", &instance, m_cdmInstance.get());
ASSERT_NOT_REACHED();
return;
}
ASSERT(m_pipeline);
GST_DEBUG_OBJECT(m_pipeline.get(), "detaching CDM instance %p, setting empty context", m_cdmInstance.get());
m_cdmInstance = nullptr;
GRefPtr<GstContext> context = adoptGRef(gst_context_new("drm-cdm-instance", FALSE));
gst_element_set_context(GST_ELEMENT(m_pipeline.get()), context.get());
}
void MediaPlayerPrivateGStreamerBase::attemptToDecryptWithInstance(CDMInstance& instance)
{
ASSERT(m_cdmInstance.get() == &instance);
GST_TRACE("instance %p, current stored %p", &instance, m_cdmInstance.get());
attemptToDecryptWithLocalInstance();
}
void MediaPlayerPrivateGStreamerBase::attemptToDecryptWithLocalInstance()
{
bool eventHandled = gst_element_send_event(pipeline(), gst_event_new_custom(GST_EVENT_CUSTOM_DOWNSTREAM_OOB, gst_structure_new_empty("attempt-to-decrypt")));
GST_DEBUG("attempting to decrypt, event handled %s", boolForPrinting(eventHandled));
}
void MediaPlayerPrivateGStreamerBase::handleProtectionEvent(GstEvent* event)
{
{
LockHolder lock(m_protectionMutex);
if (m_handledProtectionEvents.contains(GST_EVENT_SEQNUM(event))) {
GST_DEBUG_OBJECT(pipeline(), "event %u already handled", GST_EVENT_SEQNUM(event));
return;
}
}
GST_DEBUG_OBJECT(pipeline(), "handling event %u from MSE", GST_EVENT_SEQNUM(event));
const char* eventKeySystemUUID = nullptr;
GstBuffer* initData = nullptr;
gst_event_parse_protection(event, &eventKeySystemUUID, &initData, nullptr);
initializationDataEncountered({eventKeySystemUUID, initData});
}
void MediaPlayerPrivateGStreamerBase::setWaitingForKey(bool waitingForKey)
{
// We bail out if values did not change or if we are requested to not wait anymore but there are still waiting decryptors.
GST_TRACE("waitingForKey %s, m_waitingForKey %s", boolForPrinting(waitingForKey), boolForPrinting(m_waitingForKey));
if (waitingForKey == m_waitingForKey || (!waitingForKey && this->waitingForKey()))
return;
m_waitingForKey = waitingForKey;
GST_DEBUG("waiting for key changed %s", boolForPrinting(m_waitingForKey));
m_player->waitingForKeyChanged();
}
bool MediaPlayerPrivateGStreamerBase::waitingForKey() const
{
if (!m_pipeline)
return false;
GstState state;
gst_element_get_state(m_pipeline.get(), &state, nullptr, 0);
bool result = false;
GRefPtr<GstQuery> query = adoptGRef(gst_query_new_custom(GST_QUERY_CUSTOM, gst_structure_new_empty("any-decryptor-waiting-for-key")));
if (state >= GST_STATE_PAUSED) {
result = gst_element_query(m_pipeline.get(), query.get());
GST_TRACE("query result %s, on %s", boolForPrinting(result), gst_element_state_get_name(state));
} else if (state >= GST_STATE_READY) {
// Running a query in the pipeline is easier but it only works when the pipeline is set up and running, otherwise we need to inspect it and ask the decryptors directly.
GUniquePtr<GstIterator> iterator(gst_bin_iterate_recurse(GST_BIN(m_pipeline.get())));
GstIteratorResult iteratorResult;
do {
iteratorResult = gst_iterator_fold(iterator.get(), [](const GValue *item, GValue *, gpointer data) -> gboolean {
GstElement* element = GST_ELEMENT(g_value_get_object(item));
GstQuery* query = GST_QUERY(data);
return !WEBKIT_IS_MEDIA_CENC_DECRYPT(element) || !gst_element_query(element, query);
}, nullptr, query.get());
if (iteratorResult == GST_ITERATOR_RESYNC)
gst_iterator_resync(iterator.get());
} while (iteratorResult == GST_ITERATOR_RESYNC);
if (iteratorResult == GST_ITERATOR_ERROR)
GST_WARNING("iterator returned an error");
result = iteratorResult == GST_ITERATOR_OK;
GST_TRACE("iterator result %d, waiting %s", iteratorResult, boolForPrinting(result));
}
return result;
}
#endif
bool MediaPlayerPrivateGStreamerBase::supportsKeySystem(const String& keySystem, const String& mimeType)
{
bool result = false;
#if ENABLE(ENCRYPTED_MEDIA)
result = GStreamerEMEUtilities::isClearKeyKeySystem(keySystem);
#endif
GST_DEBUG("checking for KeySystem support with %s and type %s: %s", keySystem.utf8().data(), mimeType.utf8().data(), boolForPrinting(result));
return result;
}
MediaPlayer::SupportsType MediaPlayerPrivateGStreamerBase::extendedSupportsType(const MediaEngineSupportParameters& parameters, MediaPlayer::SupportsType result)
{
UNUSED_PARAM(parameters);
return result;
}
}
#endif // USE(GSTREAMER)