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/*
* libjingle
* Copyright 2004 Google 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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 "talk/media/webrtc/webrtcpassthroughrender.h"
#include "talk/base/common.h"
#include "talk/base/logging.h"
namespace cricket {
#define LOG_FIND_STREAM_ERROR(func, id) LOG(LS_ERROR) \
<< "" << func << " - Failed to find stream: " << id
class PassthroughStream: public webrtc::VideoRenderCallback {
public:
explicit PassthroughStream(const uint32_t stream_id)
: stream_id_(stream_id),
running_(false) {
}
virtual ~PassthroughStream() {
}
virtual int32_t RenderFrame(const uint32_t stream_id,
webrtc::I420VideoFrame& videoFrame) {
talk_base::CritScope cs(&stream_critical_);
// Send frame for rendering directly
if (running_ && renderer_) {
renderer_->RenderFrame(stream_id, videoFrame);
}
return 0;
}
int32_t SetRenderer(VideoRenderCallback* renderer) {
talk_base::CritScope cs(&stream_critical_);
renderer_ = renderer;
return 0;
}
int32_t StartRender() {
talk_base::CritScope cs(&stream_critical_);
running_ = true;
return 0;
}
int32_t StopRender() {
talk_base::CritScope cs(&stream_critical_);
running_ = false;
return 0;
}
private:
uint32_t stream_id_;
VideoRenderCallback* renderer_;
talk_base::CriticalSection stream_critical_;
bool running_;
};
WebRtcPassthroughRender::WebRtcPassthroughRender()
: window_(NULL) {
}
WebRtcPassthroughRender::~WebRtcPassthroughRender() {
while (!stream_render_map_.empty()) {
PassthroughStream* stream = stream_render_map_.begin()->second;
stream_render_map_.erase(stream_render_map_.begin());
delete stream;
}
}
webrtc::VideoRenderCallback* WebRtcPassthroughRender::AddIncomingRenderStream(
const uint32_t stream_id,
const uint32_t zOrder,
const float left, const float top,
const float right, const float bottom) {
talk_base::CritScope cs(&render_critical_);
// Stream already exist.
if (FindStream(stream_id) != NULL) {
LOG(LS_ERROR) << "AddIncomingRenderStream - Stream already exists: "
<< stream_id;
return NULL;
}
PassthroughStream* stream = new PassthroughStream(stream_id);
// Store the stream
stream_render_map_[stream_id] = stream;
return stream;
}
int32_t WebRtcPassthroughRender::DeleteIncomingRenderStream(
const uint32_t stream_id) {
talk_base::CritScope cs(&render_critical_);
PassthroughStream* stream = FindStream(stream_id);
if (stream == NULL) {
LOG_FIND_STREAM_ERROR("DeleteIncomingRenderStream", stream_id);
return -1;
}
delete stream;
stream_render_map_.erase(stream_id);
return 0;
}
int32_t WebRtcPassthroughRender::AddExternalRenderCallback(
const uint32_t stream_id,
webrtc::VideoRenderCallback* render_object) {
talk_base::CritScope cs(&render_critical_);
PassthroughStream* stream = FindStream(stream_id);
if (stream == NULL) {
LOG_FIND_STREAM_ERROR("AddExternalRenderCallback", stream_id);
return -1;
}
return stream->SetRenderer(render_object);
}
bool WebRtcPassthroughRender::HasIncomingRenderStream(
const uint32_t stream_id) const {
return (FindStream(stream_id) != NULL);
}
webrtc::RawVideoType WebRtcPassthroughRender::PreferredVideoType() const {
return webrtc::kVideoI420;
}
int32_t WebRtcPassthroughRender::StartRender(const uint32_t stream_id) {
talk_base::CritScope cs(&render_critical_);
PassthroughStream* stream = FindStream(stream_id);
if (stream == NULL) {
LOG_FIND_STREAM_ERROR("StartRender", stream_id);
return -1;
}
return stream->StartRender();
}
int32_t WebRtcPassthroughRender::StopRender(const uint32_t stream_id) {
talk_base::CritScope cs(&render_critical_);
PassthroughStream* stream = FindStream(stream_id);
if (stream == NULL) {
LOG_FIND_STREAM_ERROR("StopRender", stream_id);
return -1;
}
return stream->StopRender();
}
// TODO(ronghuawu): Is it ok to return non-const pointer to PassthroughStream
// from this const function FindStream.
PassthroughStream* WebRtcPassthroughRender::FindStream(
const uint32_t stream_id) const {
StreamMap::const_iterator it = stream_render_map_.find(stream_id);
if (it == stream_render_map_.end()) {
return NULL;
}
return it->second;
}
} // namespace cricket
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