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Fix screensharing on displays with fractional scaling

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This commit is contained in:
Jan Grulich 2020-05-05 11:40:03 +02:00
parent 425b7745cc
commit 034c5b3d5e
1 changed files with 91 additions and 28 deletions
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117
firefox-pipewire.patch
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@ -65,7 +65,7 @@ index 1eb8ead26efa..316468eed1fc 100644
}; };
diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
index 379341c833de..d156be1c18a0 100644 index 379341c833de..58ab8279f4b7 100644
--- a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc --- a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
+++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc +++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
@@ -18,6 +18,11 @@ @@ -18,6 +18,11 @@
@ -108,7 +108,13 @@ index 379341c833de..d156be1c18a0 100644
// static // static
void BaseCapturerPipeWire::OnStateChanged(void* data, void BaseCapturerPipeWire::OnStateChanged(void* data,
pw_remote_state old_state, pw_remote_state old_state,
@@ -112,7 +138,7 @@ void BaseCapturerPipeWire::OnStreamFormatChanged(void* data, @@ -108,11 +134,13 @@ void BaseCapturerPipeWire::OnStreamFormatChanged(void* data,
auto stride = SPA_ROUND_UP_N(width * kBytesPerPixel, 4);
auto size = height * stride;
+ that->desktop_size_ = DesktopSize(width, height);
+
uint8_t buffer[1024] = {};
auto builder = spa_pod_builder{buffer, sizeof(buffer)}; auto builder = spa_pod_builder{buffer, sizeof(buffer)};
// Setup buffers and meta header for new format. // Setup buffers and meta header for new format.
@ -117,7 +123,7 @@ index 379341c833de..d156be1c18a0 100644
params[0] = reinterpret_cast<spa_pod*>(spa_pod_builder_object( params[0] = reinterpret_cast<spa_pod*>(spa_pod_builder_object(
&builder, &builder,
// id to enumerate buffer requirements // id to enumerate buffer requirements
@@ -141,8 +167,14 @@ void BaseCapturerPipeWire::OnStreamFormatChanged(void* data, @@ -141,8 +169,14 @@ void BaseCapturerPipeWire::OnStreamFormatChanged(void* data,
// Size: size of the metadata, specified as integer (i) // Size: size of the metadata, specified as integer (i)
":", that->pw_core_type_->param_meta.size, "i", ":", that->pw_core_type_->param_meta.size, "i",
sizeof(struct spa_meta_header))); sizeof(struct spa_meta_header)));
@ -134,7 +140,7 @@ index 379341c833de..d156be1c18a0 100644
} }
// static // static
@@ -150,15 +182,25 @@ void BaseCapturerPipeWire::OnStreamProcess(void* data) { @@ -150,15 +184,25 @@ void BaseCapturerPipeWire::OnStreamProcess(void* data) {
BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data); BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
RTC_DCHECK(that); RTC_DCHECK(that);
@ -164,7 +170,7 @@ index 379341c833de..d156be1c18a0 100644
} }
BaseCapturerPipeWire::BaseCapturerPipeWire(CaptureSourceType source_type) BaseCapturerPipeWire::BaseCapturerPipeWire(CaptureSourceType source_type)
@@ -197,10 +239,6 @@ BaseCapturerPipeWire::~BaseCapturerPipeWire() { @@ -197,10 +241,6 @@ BaseCapturerPipeWire::~BaseCapturerPipeWire() {
pw_loop_destroy(pw_loop_); pw_loop_destroy(pw_loop_);
} }
@ -175,7 +181,45 @@ index 379341c833de..d156be1c18a0 100644
if (start_request_signal_id_) { if (start_request_signal_id_) {
g_dbus_connection_signal_unsubscribe(connection_, start_request_signal_id_); g_dbus_connection_signal_unsubscribe(connection_, start_request_signal_id_);
} }
@@ -332,8 +370,7 @@ void BaseCapturerPipeWire::CreateReceivingStream() { @@ -290,12 +330,7 @@ void BaseCapturerPipeWire::InitPipeWireTypes() {
void BaseCapturerPipeWire::CreateReceivingStream() {
spa_rectangle pwMinScreenBounds = spa_rectangle{1, 1};
- spa_rectangle pwScreenBounds =
- spa_rectangle{static_cast<uint32_t>(desktop_size_.width()),
- static_cast<uint32_t>(desktop_size_.height())};
-
- spa_fraction pwFrameRateMin = spa_fraction{0, 1};
- spa_fraction pwFrameRateMax = spa_fraction{60, 1};
+ spa_rectangle pwMaxScreenBounds = spa_rectangle{INT32_MAX, INT32_MAX};
pw_properties* reuseProps = pw_properties_new("pipewire.client.reuse", "1",
/*end of varargs*/ nullptr);
@@ -313,27 +348,19 @@ void BaseCapturerPipeWire::CreateReceivingStream() {
// then allowed formats are enumerated (e) and the format is undecided (u)
// to allow negotiation
":", pw_type_->format_video.format, "Ieu", pw_type_->video_format.BGRx,
- SPA_POD_PROP_ENUM(2, pw_type_->video_format.RGBx,
- pw_type_->video_format.BGRx),
+ SPA_POD_PROP_ENUM(
+ 4, pw_type_->video_format.RGBx, pw_type_->video_format.BGRx,
+ pw_type_->video_format.RGBA, pw_type_->video_format.BGRA),
// Video size: specified as rectangle (R), preferred size is specified as
// first parameter, then allowed size is defined as range (r) from min and
// max values and the format is undecided (u) to allow negotiation
- ":", pw_type_->format_video.size, "Rru", &pwScreenBounds, 2,
- &pwMinScreenBounds, &pwScreenBounds,
- // Frame rate: specified as fraction (F) and set to minimum frame rate
- // value
- ":", pw_type_->format_video.framerate, "F", &pwFrameRateMin,
- // Max frame rate: specified as fraction (F), preferred frame rate is set
- // to maximum value, then allowed frame rate is defined as range (r) from
- // min and max values and it is undecided (u) to allow negotiation
- ":", pw_type_->format_video.max_framerate, "Fru", &pwFrameRateMax, 2,
- &pwFrameRateMin, &pwFrameRateMax));
+ ":", pw_type_->format_video.size, "Rru", &pwMinScreenBounds,
+ SPA_POD_PROP_MIN_MAX(&pwMinScreenBounds, &pwMaxScreenBounds)));
pw_stream_add_listener(pw_stream_, &spa_stream_listener_, &pw_stream_events_, pw_stream_add_listener(pw_stream_, &spa_stream_listener_, &pw_stream_events_,
this); this);
pw_stream_flags flags = static_cast<pw_stream_flags>( pw_stream_flags flags = static_cast<pw_stream_flags>(
@ -185,7 +229,7 @@ index 379341c833de..d156be1c18a0 100644
if (pw_stream_connect(pw_stream_, PW_DIRECTION_INPUT, /*port_path=*/nullptr, if (pw_stream_connect(pw_stream_, PW_DIRECTION_INPUT, /*port_path=*/nullptr,
flags, params, flags, params,
/*n_params=*/1) != 0) { /*n_params=*/1) != 0) {
@@ -344,15 +381,77 @@ void BaseCapturerPipeWire::CreateReceivingStream() { @@ -344,15 +371,81 @@ void BaseCapturerPipeWire::CreateReceivingStream() {
} }
void BaseCapturerPipeWire::HandleBuffer(pw_buffer* buffer) { void BaseCapturerPipeWire::HandleBuffer(pw_buffer* buffer) {
@ -228,7 +272,10 @@ index 379341c833de..d156be1c18a0 100644
- uint32_t maxSize = spaBuffer->datas[0].maxsize; - uint32_t maxSize = spaBuffer->datas[0].maxsize;
- int32_t srcStride = spaBuffer->datas[0].chunk->stride; - int32_t srcStride = spaBuffer->datas[0].chunk->stride;
+ DesktopSize prev_crop_size = video_crop_size_.value_or(DesktopSize(0, 0)); + DesktopSize prev_crop_size = DesktopSize(0, 0);
+ if (video_crop_size_initialized_) {
+ prev_crop_size = video_crop_size_;
+ }
+ +
+ if ((video_crop = static_cast<struct spa_meta_video_crop*>( + if ((video_crop = static_cast<struct spa_meta_video_crop*>(
+ spa_buffer_find_meta(spaBuffer, pw_core_type_->meta.VideoCrop)))) { + spa_buffer_find_meta(spaBuffer, pw_core_type_->meta.VideoCrop)))) {
@ -237,37 +284,38 @@ index 379341c833de..d156be1c18a0 100644
+ if ((video_crop->width != desktop_size_.width() || + if ((video_crop->width != desktop_size_.width() ||
+ video_crop->height != desktop_size_.height()) && video_crop->width && video_crop->height) { + video_crop->height != desktop_size_.height()) && video_crop->width && video_crop->height) {
+ video_crop_size_ = DesktopSize(video_crop->width, video_crop->height); + video_crop_size_ = DesktopSize(video_crop->width, video_crop->height);
+ video_crop_size_initialized_ = true;
+ } else { + } else {
+ video_crop_size_.reset(); + video_crop_size_initialized_ = false;
+ } + }
+ } else { + } else {
+ video_crop_size_.reset(); + video_crop_size_initialized_ = false;
+ } + }
+ +
+ size_t frame_size; + size_t frame_size;
+ if (video_crop_size_) { + if (video_crop_size_initialized_) {
+ frame_size = + frame_size =
+ video_crop_size_->width() * video_crop_size_->height() * kBytesPerPixel; + video_crop_size_.width() * video_crop_size_.height() * kBytesPerPixel;
+ } else { + } else {
+ frame_size = + frame_size =
+ desktop_size_.width() * desktop_size_.height() * kBytesPerPixel; + desktop_size_.width() * desktop_size_.height() * kBytesPerPixel;
+ } + }
+ +
+ if (!current_frame_ || + if (!current_frame_ ||
+ (video_crop_size_ && !video_crop_size_->equals(prev_crop_size))) { + (video_crop_size_initialized_ && !video_crop_size_.equals(prev_crop_size))) {
+ current_frame_ = std::make_unique<uint8_t[]>(frame_size); + current_frame_ = std::make_unique<uint8_t[]>(frame_size);
+ } + }
+ RTC_DCHECK(current_frame_ != nullptr); + RTC_DCHECK(current_frame_ != nullptr);
+ +
+ const int32_t dstStride = video_crop_size_ + const int32_t dstStride = video_crop_size_initialized_
+ ? video_crop_size_->width() * kBytesPerPixel + ? video_crop_size_.width() * kBytesPerPixel
+ : desktop_size_.width() * kBytesPerPixel; + : desktop_size_.width() * kBytesPerPixel;
+ const int32_t srcStride = spaBuffer->datas[0].chunk->stride; + const int32_t srcStride = spaBuffer->datas[0].chunk->stride;
+ +
if (srcStride != (desktop_size_.width() * kBytesPerPixel)) { if (srcStride != (desktop_size_.width() * kBytesPerPixel)) {
RTC_LOG(LS_ERROR) << "Got buffer with stride different from screen stride: " RTC_LOG(LS_ERROR) << "Got buffer with stride different from screen stride: "
<< srcStride << srcStride
@@ -361,21 +460,39 @@ void BaseCapturerPipeWire::HandleBuffer(pw_buffer* buffer) { @@ -361,21 +454,39 @@ void BaseCapturerPipeWire::HandleBuffer(pw_buffer* buffer) {
return; return;
} }
@ -276,18 +324,18 @@ index 379341c833de..d156be1c18a0 100644
+ dst = current_frame_.get(); + dst = current_frame_.get();
+ +
+ // Adjust source content based on crop video position + // Adjust source content based on crop video position
+ if (video_crop_size_ && + if (video_crop_size_initialized_ &&
+ (video_crop->y + video_crop_size_->height() <= desktop_size_.height())) { + (video_crop->y + video_crop_size_.height() <= desktop_size_.height())) {
+ for (int i = 0; i < video_crop->y; ++i) { + for (int i = 0; i < video_crop->y; ++i) {
+ src += srcStride; + src += srcStride;
+ } + }
+ } + }
+ const int xOffset = + const int xOffset =
+ video_crop_size_ && (video_crop->x + video_crop_size_->width() <= + video_crop_size_initialized_ && (video_crop->x + video_crop_size_.width() <=
+ desktop_size_.width()) + desktop_size_.width())
+ ? video_crop->x * kBytesPerPixel + ? video_crop->x * kBytesPerPixel
+ : 0; + : 0;
+ const int height = video_crop_size_ ? video_crop_size_->height() : desktop_size_.height(); + const int height = video_crop_size_initialized_ ? video_crop_size_.height() : desktop_size_.height();
+ for (int i = 0; i < height; ++i) { + for (int i = 0; i < height; ++i) {
+ // Adjust source content based on crop video position if needed + // Adjust source content based on crop video position if needed
+ src += xOffset; + src += xOffset;
@ -320,12 +368,26 @@ index 379341c833de..d156be1c18a0 100644
} }
} }
@@ -813,10 +930,12 @@ void BaseCapturerPipeWire::CaptureFrame() { @@ -725,10 +836,6 @@ void BaseCapturerPipeWire::OnStartRequestResponseSignal(
g_variant_get(variant, "(u@a{sv})", &stream_id, &options);
RTC_DCHECK(options != nullptr);
- g_variant_lookup(options, "size", "(ii)", &width, &height);
-
- that->desktop_size_.set(width, height);
-
g_variant_unref(options);
g_variant_unref(variant);
}
@@ -813,10 +920,15 @@ void BaseCapturerPipeWire::CaptureFrame() {
return; return;
} }
- std::unique_ptr<DesktopFrame> result(new BasicDesktopFrame(desktop_size_)); - std::unique_ptr<DesktopFrame> result(new BasicDesktopFrame(desktop_size_));
+ DesktopSize frame_size = video_crop_size_.value_or(desktop_size_); + DesktopSize frame_size = desktop_size_;
+ if (video_crop_size_initialized_) {
+ frame_size = video_crop_size_;
+ }
+ +
+ std::unique_ptr<DesktopFrame> result(new BasicDesktopFrame(frame_size)); + std::unique_ptr<DesktopFrame> result(new BasicDesktopFrame(frame_size));
result->CopyPixelsFrom( result->CopyPixelsFrom(
@ -336,7 +398,7 @@ index 379341c833de..d156be1c18a0 100644
if (!result) { if (!result) {
callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr); callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr);
return; return;
@@ -837,4 +956,22 @@ bool BaseCapturerPipeWire::SelectSource(SourceId id) { @@ -837,4 +949,22 @@ bool BaseCapturerPipeWire::SelectSource(SourceId id) {
return true; return true;
} }
@ -360,7 +422,7 @@ index 379341c833de..d156be1c18a0 100644
+ +
} // namespace webrtc } // namespace webrtc
diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
index 56b101acbaa6..56af57891379 100644 index 56b101acbaa6..ef90a86a5a4b 100644
--- a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h --- a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
+++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h +++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
@@ -32,7 +32,11 @@ class PipeWireType { @@ -32,7 +32,11 @@ class PipeWireType {
@ -398,11 +460,12 @@ index 56b101acbaa6..56af57891379 100644
// <-- end of PipeWire types // <-- end of PipeWire types
@@ -78,10 +88,11 @@ class BaseCapturerPipeWire : public DesktopCapturer { @@ -78,10 +88,12 @@ class BaseCapturerPipeWire : public DesktopCapturer {
guint sources_request_signal_id_ = 0; guint sources_request_signal_id_ = 0;
guint start_request_signal_id_ = 0; guint start_request_signal_id_ = 0;
+ std::optional<DesktopSize> video_crop_size_ = std::nullopt; + bool video_crop_size_initialized_ = false;
+ DesktopSize video_crop_size_;;
DesktopSize desktop_size_ = {}; DesktopSize desktop_size_ = {};
DesktopCaptureOptions options_ = {}; DesktopCaptureOptions options_ = {};
@ -411,7 +474,7 @@ index 56b101acbaa6..56af57891379 100644
Callback* callback_ = nullptr; Callback* callback_ = nullptr;
bool portal_init_failed_ = false; bool portal_init_failed_ = false;
@@ -95,6 +106,7 @@ class BaseCapturerPipeWire : public DesktopCapturer { @@ -95,6 +107,7 @@ class BaseCapturerPipeWire : public DesktopCapturer {
void ConvertRGBxToBGRx(uint8_t* frame, uint32_t size); void ConvertRGBxToBGRx(uint8_t* frame, uint32_t size);