static gboolean webkitVideoSinkSetCaps(GstBaseSink* baseSink, GstCaps* caps)
{
WebKitVideoSink* sink = WEBKIT_VIDEO_SINK(baseSink);
WebKitVideoSinkPrivate* priv = sink->priv;
GST_DEBUG_OBJECT(sink, "Current caps %" GST_PTR_FORMAT ", setting caps %" GST_PTR_FORMAT, priv->currentCaps, caps);
#ifdef GST_API_VERSION_1
GstVideoInfo info;
if (!gst_video_info_from_caps(&info, caps)) {
GST_ERROR_OBJECT(sink, "Invalid caps %" GST_PTR_FORMAT, caps);
return FALSE;
}
#endif
gst_caps_replace(&priv->currentCaps, caps);
return TRUE;
}
static gboolean webkitVideoSinkProposeAllocation(GstBaseSink* baseSink, GstQuery* query)
{
GstCaps* caps;
gst_query_parse_allocation(query, &caps, 0);
if (!caps)
return FALSE;
WebKitVideoSink* sink = WEBKIT_VIDEO_SINK(baseSink);
if (!gst_video_info_from_caps(&sink->priv->info, caps))
return FALSE;
gst_query_add_allocation_meta(query, GST_VIDEO_META_API_TYPE, 0);
gst_query_add_allocation_meta(query, GST_VIDEO_CROP_META_API_TYPE, 0);
#if GST_CHECK_VERSION(1, 1, 0)
gst_query_add_allocation_meta(query, GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, 0);
#endif
return TRUE;
}
static void webkitVideoSinkGetProperty(GObject* object, guint propertyId, GValue* value, GParamSpec* parameterSpec)
{
WebKitVideoSink* sink = WEBKIT_VIDEO_SINK(object);
WebKitVideoSinkPrivate* priv = sink->priv;
switch (propertyId) {
case PROP_CAPS: {
GstCaps* caps = priv->currentCaps;
if (caps)
gst_caps_ref(caps);
g_value_take_boxed(value, caps);
break;
}
case PROP_SILENT:
g_value_set_boolean(value, priv->silent);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, propertyId, parameterSpec);
}
}
/**
* webkit_video_sink_new:
*
* Creates a new GStreamer video sink.
*
* Return value: a #GstElement for the newly created video sink
*/
GstElement* webkit_video_sink_new(WebCore::GStreamerGWorld* gstGWorld)
{
GstElement* element = GST_ELEMENT(g_object_new(WEBKIT_TYPE_VIDEO_SINK, 0));
WEBKIT_VIDEO_SINK(element)->priv->gstGWorld = gstGWorld;
return element;
}
static GstFlowReturn
webkit_video_sink_render(GstBaseSink* bsink, GstBuffer* buffer)
{
WebKitVideoSink* sink = WEBKIT_VIDEO_SINK(bsink);
WebKitVideoSinkPrivate* priv = sink->priv;
g_mutex_lock(priv->buffer_mutex);
if (priv->unlocked) {
g_mutex_unlock(priv->buffer_mutex);
return GST_FLOW_OK;
}
// Ignore buffers if the video is already in fullscreen using
// another sink.
if (priv->gstGWorld->isFullscreen()) {
g_mutex_unlock(priv->buffer_mutex);
return GST_FLOW_OK;
}
priv->buffer = gst_buffer_ref(buffer);
// For the unlikely case where the buffer has no caps, the caps
// are implicitely the caps of the pad. This shouldn't happen.
if (G_UNLIKELY(!GST_BUFFER_CAPS(buffer))) {
buffer = priv->buffer = gst_buffer_make_metadata_writable(priv->buffer);
gst_buffer_set_caps(priv->buffer, GST_PAD_CAPS(GST_BASE_SINK_PAD(bsink)));
}
GstCaps *caps = GST_BUFFER_CAPS(buffer);
GstVideoFormat format;
int width, height;
if (G_UNLIKELY(!gst_video_format_parse_caps(caps, &format, &width, &height))) {
gst_buffer_unref(buffer);
g_mutex_unlock(priv->buffer_mutex);
return GST_FLOW_ERROR;
}
// Cairo's ARGB has pre-multiplied alpha while GStreamer's doesn't.
// Here we convert to Cairo's ARGB.
if (format == GST_VIDEO_FORMAT_ARGB || format == GST_VIDEO_FORMAT_BGRA) {
// Because GstBaseSink::render() only owns the buffer reference in the
// method scope we can't use gst_buffer_make_writable() here. Also
// The buffer content should not be changed here because the same buffer
// could be passed multiple times to this method (in theory)
GstBuffer *newBuffer = gst_buffer_try_new_and_alloc(GST_BUFFER_SIZE(buffer));
// Check if allocation failed
if (G_UNLIKELY(!newBuffer)) {
gst_buffer_unref(buffer);
g_mutex_unlock(priv->buffer_mutex);
return GST_FLOW_ERROR;
}
gst_buffer_copy_metadata(newBuffer, buffer, (GstBufferCopyFlags) GST_BUFFER_COPY_ALL);
// We don't use Color::premultipliedARGBFromColor() here because
// one function call per video pixel is just too expensive:
// For 720p/PAL for example this means 1280*720*25=23040000
// function calls per second!
unsigned short alpha;
const guint8 *source = GST_BUFFER_DATA(buffer);
guint8 *destination = GST_BUFFER_DATA(newBuffer);
for (int x = 0; x < height; x++) {
for (int y = 0; y < width; y++) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
alpha = source[3];
destination[0] = (source[0] * alpha + 128) / 255;
destination[1] = (source[1] * alpha + 128) / 255;
destination[2] = (source[2] * alpha + 128) / 255;
destination[3] = alpha;
#else
alpha = source[0];
destination[0] = alpha;
destination[1] = (source[1] * alpha + 128) / 255;
destination[2] = (source[2] * alpha + 128) / 255;
destination[3] = (source[3] * alpha + 128) / 255;
#endif
source += 4;
destination += 4;
}
}
gst_buffer_unref(buffer);
buffer = priv->buffer = newBuffer;
}
// This should likely use a lower priority, but glib currently starves
// lower priority sources.
// See: https://bugzilla.gnome.org/show_bug.cgi?id=610830.
priv->timeout_id = g_timeout_add_full(G_PRIORITY_DEFAULT, 0,
webkit_video_sink_timeout_func,
gst_object_ref(sink),
(GDestroyNotify)gst_object_unref);
g_cond_wait(priv->data_cond, priv->buffer_mutex);
g_mutex_unlock(priv->buffer_mutex);
return GST_FLOW_OK;
}
static GstFlowReturn webkitVideoSinkRender(GstBaseSink* baseSink, GstBuffer* buffer)
{
WebKitVideoSink* sink = WEBKIT_VIDEO_SINK(baseSink);
WebKitVideoSinkPrivate* priv = sink->priv;
g_mutex_lock(priv->bufferMutex);
if (priv->unlocked) {
g_mutex_unlock(priv->bufferMutex);
return GST_FLOW_OK;
}
#if USE(NATIVE_FULLSCREEN_VIDEO)
// Ignore buffers if the video is already in fullscreen using
// another sink.
if (priv->gstGWorld->isFullscreen()) {
g_mutex_unlock(priv->bufferMutex);
return GST_FLOW_OK;
}
#endif
priv->buffer = gst_buffer_ref(buffer);
#ifndef GST_API_VERSION_1
// For the unlikely case where the buffer has no caps, the caps
// are implicitely the caps of the pad. This shouldn't happen.
if (UNLIKELY(!GST_BUFFER_CAPS(buffer))) {
buffer = priv->buffer = gst_buffer_make_metadata_writable(priv->buffer);
gst_buffer_set_caps(priv->buffer, GST_PAD_CAPS(GST_BASE_SINK_PAD(baseSink)));
}
GRefPtr<GstCaps> caps = GST_BUFFER_CAPS(buffer);
#else
GRefPtr<GstCaps> caps;
// The video info structure is valid only if the sink handled an allocation query.
if (GST_VIDEO_INFO_FORMAT(&priv->info) != GST_VIDEO_FORMAT_UNKNOWN)
caps = adoptGRef(gst_video_info_to_caps(&priv->info));
else
caps = priv->currentCaps;
#endif
GstVideoFormat format;
WebCore::IntSize size;
int pixelAspectRatioNumerator, pixelAspectRatioDenominator, stride;
if (!getVideoSizeAndFormatFromCaps(caps.get(), size, format, pixelAspectRatioNumerator, pixelAspectRatioDenominator, stride)) {
gst_buffer_unref(buffer);
g_mutex_unlock(priv->bufferMutex);
return GST_FLOW_ERROR;
}
// Cairo's ARGB has pre-multiplied alpha while GStreamer's doesn't.
// Here we convert to Cairo's ARGB.
if (format == GST_VIDEO_FORMAT_ARGB || format == GST_VIDEO_FORMAT_BGRA) {
// Because GstBaseSink::render() only owns the buffer reference in the
// method scope we can't use gst_buffer_make_writable() here. Also
// The buffer content should not be changed here because the same buffer
// could be passed multiple times to this method (in theory).
GstBuffer* newBuffer = createGstBuffer(buffer);
// Check if allocation failed.
if (UNLIKELY(!newBuffer)) {
g_mutex_unlock(priv->bufferMutex);
return GST_FLOW_ERROR;
}
// We don't use Color::premultipliedARGBFromColor() here because
// one function call per video pixel is just too expensive:
// For 720p/PAL for example this means 1280*720*25=23040000
// function calls per second!
#ifndef GST_API_VERSION_1
const guint8* source = GST_BUFFER_DATA(buffer);
guint8* destination = GST_BUFFER_DATA(newBuffer);
#else
GstMapInfo sourceInfo;
GstMapInfo destinationInfo;
gst_buffer_map(buffer, &sourceInfo, GST_MAP_READ);
const guint8* source = const_cast<guint8*>(sourceInfo.data);
gst_buffer_map(newBuffer, &destinationInfo, GST_MAP_WRITE);
guint8* destination = static_cast<guint8*>(destinationInfo.data);
#endif
for (int x = 0; x < size.height(); x++) {
for (int y = 0; y < size.width(); y++) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
unsigned short alpha = source[3];
destination[0] = (source[0] * alpha + 128) / 255;
destination[1] = (source[1] * alpha + 128) / 255;
destination[2] = (source[2] * alpha + 128) / 255;
destination[3] = alpha;
#else
unsigned short alpha = source[0];
destination[0] = alpha;
destination[1] = (source[1] * alpha + 128) / 255;
destination[2] = (source[2] * alpha + 128) / 255;
destination[3] = (source[3] * alpha + 128) / 255;
#endif
source += 4;
destination += 4;
}
}
#ifdef GST_API_VERSION_1
gst_buffer_unmap(buffer, &sourceInfo);
gst_buffer_unmap(newBuffer, &destinationInfo);
#endif
gst_buffer_unref(buffer);
buffer = priv->buffer = newBuffer;
}
// This should likely use a lower priority, but glib currently starves
// lower priority sources.
// See: https://bugzilla.gnome.org/show_bug.cgi?id=610830.
priv->timeoutId = g_timeout_add_full(G_PRIORITY_DEFAULT, 0, webkitVideoSinkTimeoutCallback,
gst_object_ref(sink), reinterpret_cast<GDestroyNotify>(gst_object_unref));
g_cond_wait(priv->dataCondition, priv->bufferMutex);
g_mutex_unlock(priv->bufferMutex);
return GST_FLOW_OK;
}
static GstFlowReturn webkitVideoSinkRender(GstBaseSink* baseSink, GstBuffer* buffer)
{
WebKitVideoSink* sink = WEBKIT_VIDEO_SINK(baseSink);
WebKitVideoSinkPrivate* priv = sink->priv;
g_mutex_lock(&priv->bufferMutex);
if (priv->unlocked) {
g_mutex_unlock(&priv->bufferMutex);
return GST_FLOW_OK;
}
priv->buffer = gst_buffer_ref(buffer);
GstCaps* caps;
// The video info structure is valid only if the sink handled an allocation query.
if (GST_VIDEO_INFO_FORMAT(&priv->info) != GST_VIDEO_FORMAT_UNKNOWN)
caps = gst_video_info_to_caps(&priv->info);
else
caps = priv->currentCaps;
GstVideoFormat format;
IntSize size;
int pixelAspectRatioNumerator, pixelAspectRatioDenominator, stride;
if (!getVideoSizeAndFormatFromCaps(caps, &size, &format, &pixelAspectRatioNumerator, &pixelAspectRatioDenominator, &stride)) {
gst_caps_unref(caps);
gst_buffer_unref(buffer);
g_mutex_unlock(&priv->bufferMutex);
return GST_FLOW_ERROR;
}
gst_caps_unref(caps);
// Cairo's ARGB has pre-multiplied alpha while GStreamer's doesn't.
// Here we convert to Cairo's ARGB.
if (format == GST_VIDEO_FORMAT_ARGB || format == GST_VIDEO_FORMAT_BGRA) {
// Because GstBaseSink::render() only owns the buffer reference in the
// method scope we can't use gst_buffer_make_writable() here. Also
// The buffer content should not be changed here because the same buffer
// could be passed multiple times to this method (in theory).
GstBuffer* newBuffer = createGstBuffer(buffer);
// Check if allocation failed.
if (G_UNLIKELY(!newBuffer)) {
g_mutex_unlock(&priv->bufferMutex);
return GST_FLOW_ERROR;
}
// We don't use Color::premultipliedARGBFromColor() here because
// one function call per video pixel is just too expensive:
// For 720p/PAL for example this means 1280*720*25=23040000
// function calls per second!
GstMapInfo sourceInfo;
GstMapInfo destinationInfo;
gst_buffer_map(buffer, &sourceInfo, GST_MAP_READ);
const guint8* source = sourceInfo.data;
gst_buffer_map(newBuffer, &destinationInfo, GST_MAP_WRITE);
guint8* destination = destinationInfo.data;
for (int x = 0; x < size.Height; x++) {
for (int y = 0; y < size.Width; y++) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
unsigned short alpha = source[3];
destination[0] = (source[0] * alpha + 128) / 255;
destination[1] = (source[1] * alpha + 128) / 255;
destination[2] = (source[2] * alpha + 128) / 255;
destination[3] = alpha;
#else
unsigned short alpha = source[0];
destination[0] = alpha;
destination[1] = (source[1] * alpha + 128) / 255;
destination[2] = (source[2] * alpha + 128) / 255;
destination[3] = (source[3] * alpha + 128) / 255;
#endif
source += 4;
destination += 4;
}
}
gst_buffer_unmap(buffer, &sourceInfo);
gst_buffer_unmap(newBuffer, &destinationInfo);
gst_buffer_unref(buffer);
buffer = priv->buffer = newBuffer;
}
// This should likely use a lower priority, but glib currently starves
// lower priority sources.
// See: https://bugzilla.gnome.org/show_bug.cgi?id=610830.
priv->timeoutId = g_timeout_add_full(G_PRIORITY_DEFAULT, 0, webkitVideoSinkTimeoutCallback,
gst_object_ref(sink), (GDestroyNotify) gst_object_unref);
g_source_set_name_by_id(priv->timeoutId, "[WebKit] webkitVideoSinkTimeoutCallback");
if (!priv->silent)
print_buffer_metadata(sink, buffer);
g_cond_wait(&priv->dataCondition, &priv->bufferMutex);
g_mutex_unlock(&priv->bufferMutex);
return GST_FLOW_OK;
}
static gboolean webkitVideoSinkProposeAllocation(GstBaseSink* baseSink, GstQuery* query)
{
WebKitVideoSink* sink = WEBKIT_VIDEO_SINK(baseSink);
GstCaps* caps = NULL;
gboolean need_pool;
gst_query_parse_allocation(query, &caps, &need_pool);
if (!caps)
return FALSE;
if (!gst_video_info_from_caps(&sink->priv->info, caps))
return FALSE;
#if USE(OPENGL_ES_2) && GST_CHECK_VERSION(1, 3, 0)
// Code adapted from gst-plugins-bad's glimagesink.
GstBufferPool* pool;
GstStructure* config;
guint size;
GstAllocator* allocator = 0;
GstAllocationParams params;
if (!_ensure_gl_setup(sink))
return FALSE;
if ((pool = sink->priv->pool))
gst_object_ref(pool);
if (pool) {
GstCaps* pcaps;
// We had a pool, check its caps.
GST_DEBUG_OBJECT (sink, "check existing pool caps");
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_get_params(config, &pcaps, &size, 0, 0);
if (!gst_caps_is_equal(caps, pcaps)) {
GST_DEBUG_OBJECT(sink, "pool has different caps");
// Different caps, we can't use this pool.
gst_object_unref(pool);
pool = 0;
}
gst_structure_free(config);
}
if (need_pool && !pool) {
GstVideoInfo info;
if (!gst_video_info_from_caps(&info, caps)) {
GST_DEBUG_OBJECT(sink, "invalid caps specified");
return FALSE;
}
GST_DEBUG_OBJECT(sink, "create new pool");
pool = gst_gl_buffer_pool_new(sink->priv->context);
// The normal size of a frame.
size = info.size;
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_set_params(config, caps, size, 0, 0);
if (!gst_buffer_pool_set_config(pool, config)) {
GST_DEBUG_OBJECT(sink, "failed setting config");
return FALSE;
}
}
// [WiP] Let's require 8 buffers for now. The player holds to the last 3
// ones and the sink holds only the last one so in theory 5 should
// be enough.
if (pool) {
gst_query_add_allocation_pool(query, pool, size, 8, 0);
gst_object_unref(pool);
}
gst_query_add_allocation_meta(query, GST_VIDEO_META_API_TYPE, 0);
gst_allocation_params_init(¶ms);
allocator = gst_allocator_find(GST_EGL_IMAGE_MEMORY_TYPE);
gst_query_add_allocation_param(query, allocator, ¶ms);
gst_object_unref(allocator);
#else
gst_query_add_allocation_meta(query, GST_VIDEO_META_API_TYPE, 0);
gst_query_add_allocation_meta(query, GST_VIDEO_CROP_META_API_TYPE, 0);
gst_query_add_allocation_meta(query, GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, 0);
#endif
return TRUE;
}
