[PPAPI] API thunk for video media stream track.

BUG=330851

Review URL: https://codereview.chromium.org/126823007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244065 0039d316-1c4b-4281-b951-d872f2087c98

14 files changed, 270 insertions, 15 deletions

diff --git a/ppapi/api/ppb_media_stream_video_track.idl b/ppapi/api/ppb_media_stream_video_track.idl
index f6e1238..3052660 100644
--- a/ppapi/api/ppb_media_stream_video_track.idl
+++ b/ppapi/api/ppb_media_stream_video_track.idl
@@ -8,6 +8,9 @@
  * receiving video frames from a MediaStream video track in the browser.
  * This interface is still in development (Dev API status) and may change.
  */
+
+[generate_thunk]
+
 label Chrome {
   [channel=dev] M34 = 0.1
 };
@@ -65,6 +68,7 @@ interface PPB_MediaStreamVideoTrack {
    * @return A <code>PP_Bool</code> with <code>PP_TRUE</code> if the given
    * MediaStream track has ended or <code>PP_FALSE</code> otherwise.
    */
+  [on_failure=PP_TRUE]
   PP_Bool HasEnded([in] PP_Resource video_track);
 
   /**
@@ -75,11 +79,8 @@ interface PPB_MediaStreamVideoTrack {
    * a spot for another frame to be buffered.
    * If there are no frames in the input buffer,
    * <code>PP_OK_COMPLETIONPENDING</code> will be returned immediately and the
-   * <code>callback</code> will be called, when a new frame is received or an
+   * <code>callback</code> will be called when a new frame is received or an
    * error happens.
-   * If the caller holds a frame returned by the previous call of
-   * <code>GetFrame()</code>, <code>PP_ERROR_INPROGRESS</code> will be returned.
-   * The caller should recycle the previous frame before getting the next frame.
    *
    * @param[in] video_track A <code>PP_Resource</code> corresponding to a video
    * resource.
diff --git a/ppapi/api/ppb_video_frame.idl b/ppapi/api/ppb_video_frame.idl
index 1cb8336..e853b10 100644
--- a/ppapi/api/ppb_video_frame.idl
+++ b/ppapi/api/ppb_video_frame.idl
@@ -6,6 +6,9 @@
 /**
  * Defines the <code>PPB_VideoFrame</code> interface.
  */
+
+[generate_thunk]
+
 label Chrome {
   [channel=dev] M34 = 0.1
 };
@@ -62,6 +65,7 @@ interface PPB_VideoFrame {
    * @return A <code>PP_TimeDelta</code> containing the timestamp of the video
    * frame. Given in seconds since the start of the containing video stream.
    */
+  [on_failure=0.0]
   PP_TimeDelta GetTimestamp([in] PP_Resource frame);
 
   /**
@@ -85,6 +89,7 @@ interface PPB_VideoFrame {
    * @return A <code>PP_VideoFrame_Format</code> containing the format of the
    * video frame.
    */
+  [on_failure=PP_VIDEOFRAME_FORMAT_UNKNOWN]
   PP_VideoFrame_Format GetFormat([in] PP_Resource frame);
 
   /**
diff --git a/ppapi/c/ppb_media_stream_video_track.h b/ppapi/c/ppb_media_stream_video_track.h
index ff12c20..0979b2e 100644
--- a/ppapi/c/ppb_media_stream_video_track.h
+++ b/ppapi/c/ppb_media_stream_video_track.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From ppb_media_stream_video_track.idl modified Fri Dec 27 17:28:11 2013. */
+/* From ppb_media_stream_video_track.idl modified Thu Jan  9 14:02:56 2014. */
 
 #ifndef PPAPI_C_PPB_MEDIA_STREAM_VIDEO_TRACK_H_
 #define PPAPI_C_PPB_MEDIA_STREAM_VIDEO_TRACK_H_
@@ -87,11 +87,8 @@ struct PPB_MediaStreamVideoTrack_0_1 { /* dev */
    * a spot for another frame to be buffered.
    * If there are no frames in the input buffer,
    * <code>PP_OK_COMPLETIONPENDING</code> will be returned immediately and the
-   * <code>callback</code> will be called, when a new frame is received or an
+   * <code>callback</code> will be called when a new frame is received or an
    * error happens.
-   * If the caller holds a frame returned by the previous call of
-   * <code>GetFrame()</code>, <code>PP_ERROR_INPROGRESS</code> will be returned.
-   * The caller should recycle the previous frame before getting the next frame.
    *
    * @param[in] video_track A <code>PP_Resource</code> corresponding to a video
    * resource.
diff --git a/ppapi/c/ppb_video_frame.h b/ppapi/c/ppb_video_frame.h
index 02fdc80..4bf043f 100644
--- a/ppapi/c/ppb_video_frame.h
+++ b/ppapi/c/ppb_video_frame.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From ppb_video_frame.idl modified Fri Dec 27 17:21:52 2013. */
+/* From ppb_video_frame.idl modified Wed Jan  8 14:06:25 2014. */
 
 #ifndef PPAPI_C_PPB_VIDEO_FRAME_H_
 #define PPAPI_C_PPB_VIDEO_FRAME_H_
diff --git a/ppapi/cpp/media_stream_video_track.h b/ppapi/cpp/media_stream_video_track.h
index 4151077..b056178 100644
--- a/ppapi/cpp/media_stream_video_track.h
+++ b/ppapi/cpp/media_stream_video_track.h
@@ -76,12 +76,8 @@ class MediaStreamVideoTrack : public Resource {
   /// a spot for another frame to be buffered.
   /// If there are no frames in the input buffer,
   /// <code>PP_OK_COMPLETIONPENDING</code> will be returned immediately and the
-  /// <code>callback</code> will be called, when a new frame is received or some
+  /// <code>callback</code> will be called when a new frame is received or some
   /// error happens.
-  /// If the caller holds a frame returned by the previous call of
-  /// <code>GetFrame()</code>, <code>PP_ERROR_INPROGRESS</code> will be
-  /// returned. The caller should recycle the previous frame before getting
-  /// the next frame.
   ///
   /// @param[in] callback A <code>PP_CompletionCallback</code> to be called upon
   /// completion of <code>GetFrame()</code>. If success, a VideoFrame will be
diff --git a/ppapi/ppapi_shared.gypi b/ppapi/ppapi_shared.gypi
index 8e5f50b..e87bf7c 100644
--- a/ppapi/ppapi_shared.gypi
+++ b/ppapi/ppapi_shared.gypi
@@ -201,6 +201,8 @@
           'thunk/ppb_instance_thunk.cc',
           'thunk/ppb_isolated_file_system_private_api.h',
           'thunk/ppb_isolated_file_system_private_thunk.cc',
+          'thunk/ppb_media_stream_video_track_api.h',
+          'thunk/ppb_media_stream_video_track_thunk.cc',
           'thunk/ppb_message_loop_api.h',
           'thunk/ppb_messaging_thunk.cc',
           'thunk/ppb_mouse_cursor_thunk.cc',
@@ -256,6 +258,8 @@
           'thunk/ppb_video_decoder_thunk.cc',
           'thunk/ppb_video_destination_private_api.h',
           'thunk/ppb_video_destination_private_thunk.cc',
+          'thunk/ppb_video_frame_api.h',
+          'thunk/ppb_video_frame_thunk.cc',
           'thunk/ppb_video_source_private_api.h',
           'thunk/ppb_video_source_private_thunk.cc',
           'thunk/ppb_view_api.h',
diff --git a/ppapi/ppapi_sources.gypi b/ppapi/ppapi_sources.gypi
index d84d9ec..9e83be1 100644
--- a/ppapi/ppapi_sources.gypi
+++ b/ppapi/ppapi_sources.gypi
@@ -61,6 +61,7 @@
       'c/ppb_var_array.h',
       'c/ppb_var_array_buffer.h',
       'c/ppb_var_dictionary.h',
+      'c/ppb_video_frame.h',
       'c/ppb_view.h',
       'c/ppb_websocket.h',
       'c/ppp.h',
diff --git a/ppapi/proxy/interface_list.cc b/ppapi/proxy/interface_list.cc
index c734710..154ffc1 100644
--- a/ppapi/proxy/interface_list.cc
+++ b/ppapi/proxy/interface_list.cc
@@ -43,6 +43,7 @@
 #include "ppapi/c/ppb_image_data.h"
 #include "ppapi/c/ppb_input_event.h"
 #include "ppapi/c/ppb_instance.h"
+#include "ppapi/c/ppb_media_stream_video_track.h"
 #include "ppapi/c/ppb_message_loop.h"
 #include "ppapi/c/ppb_messaging.h"
 #include "ppapi/c/ppb_mouse_lock.h"
@@ -61,6 +62,7 @@
 #include "ppapi/c/ppb_var_array.h"
 #include "ppapi/c/ppb_var_array_buffer.h"
 #include "ppapi/c/ppb_var_dictionary.h"
+#include "ppapi/c/ppb_video_frame.h"
 #include "ppapi/c/ppb_view.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/ppp_instance.h"
diff --git a/ppapi/shared_impl/resource.h b/ppapi/shared_impl/resource.h
index a3c15d1..6a11076 100644
--- a/ppapi/shared_impl/resource.h
+++ b/ppapi/shared_impl/resource.h
@@ -53,6 +53,7 @@
   F(PPB_InputEvent_API) \
   F(PPB_IsolatedFileSystem_Private_API) \
   F(PPB_LayerCompositor_API) \
+  F(PPB_MediaStreamVideoTrack_API) \
   F(PPB_MessageLoop_API) \
   F(PPB_NetAddress_API) \
   F(PPB_NetworkList_API) \
@@ -77,6 +78,7 @@
   F(PPB_VideoCapture_API) \
   F(PPB_VideoDecoder_API) \
   F(PPB_VideoDestination_Private_API) \
+  F(PPB_VideoFrame_API) \
   F(PPB_VideoLayer_API) \
   F(PPB_VideoSource_Private_API) \
   F(PPB_View_API) \
diff --git a/ppapi/thunk/interfaces_ppb_public_dev_channel.h b/ppapi/thunk/interfaces_ppb_public_dev_channel.h
index a70442b..1f5861d 100644
--- a/ppapi/thunk/interfaces_ppb_public_dev_channel.h
+++ b/ppapi/thunk/interfaces_ppb_public_dev_channel.h
@@ -8,5 +8,8 @@
 #include "ppapi/thunk/interfaces_preamble.h"
 
 // Interfaces go here.
+PROXIED_IFACE(PPB_MEDIASTREAMVIDEOTRACK_INTERFACE_0_1,
+              PPB_MediaStreamVideoTrack_0_1)
+PROXIED_IFACE(PPB_VIDEOFRAME_INTERFACE_0_1, PPB_VideoFrame_0_1)
 
 #include "ppapi/thunk/interfaces_postamble.h"
diff --git a/ppapi/thunk/ppb_media_stream_video_track_api.h b/ppapi/thunk/ppb_media_stream_video_track_api.h
new file mode 100644
index 0000000..065bf67
--- /dev/null
+++ b/ppapi/thunk/ppb_media_stream_video_track_api.h
@@ -0,0 +1,27 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PPAPI_THUNK_PPB_MEDIA_STREAM_VIDEO_TRACK_API_H_
+#define PPAPI_THUNK_PPB_MEDIA_STREAM_VIDEO_TRACK_API_H_
+
+namespace ppapi {
+namespace thunk {
+
+class PPAPI_THUNK_EXPORT PPB_MediaStreamVideoTrack_API {
+ public:
+  virtual ~PPB_MediaStreamVideoTrack_API() {}
+  virtual PP_Var GetId() = 0;
+  virtual PP_Bool HasEnded() = 0;
+  virtual int32_t Configure(uint32_t max_buffered_frames) = 0;
+  virtual int32_t GetFrame(
+      PP_Resource* frame,
+      scoped_refptr<ppapi::TrackedCallback> callback) = 0;
+  virtual int32_t RecycleFrame(PP_Resource frame) = 0;
+  virtual void Close() = 0;
+};
+
+}  // namespace thunk
+}  // namespace ppapi
+
+#endif  // PPAPI_THUNK_PPB_MEDIA_STREAM_VIDEO_TRACK_API_H_
diff --git a/ppapi/thunk/ppb_media_stream_video_track_thunk.cc b/ppapi/thunk/ppb_media_stream_video_track_thunk.cc
new file mode 100644
index 0000000..9a6b92a
--- /dev/null
+++ b/ppapi/thunk/ppb_media_stream_video_track_thunk.cc
@@ -0,0 +1,97 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// From ppb_media_stream_video_track.idl modified Wed Jan  8 14:08:11 2014.
+
+#include "ppapi/c/pp_completion_callback.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/c/ppb_media_stream_video_track.h"
+#include "ppapi/shared_impl/tracked_callback.h"
+#include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/ppb_instance_api.h"
+#include "ppapi/thunk/ppb_media_stream_video_track_api.h"
+#include "ppapi/thunk/resource_creation_api.h"
+#include "ppapi/thunk/thunk.h"
+
+namespace ppapi {
+namespace thunk {
+
+namespace {
+
+PP_Bool IsMediaStreamVideoTrack(PP_Resource resource) {
+  VLOG(4) << "PPB_MediaStreamVideoTrack::IsMediaStreamVideoTrack()";
+  EnterResource<PPB_MediaStreamVideoTrack_API> enter(resource, false);
+  return PP_FromBool(enter.succeeded());
+}
+
+int32_t Configure(PP_Resource video_track, uint32_t max_buffered_frames) {
+  VLOG(4) << "PPB_MediaStreamVideoTrack::Configure()";
+  EnterResource<PPB_MediaStreamVideoTrack_API> enter(video_track, true);
+  if (enter.failed())
+    return enter.retval();
+  return enter.object()->Configure(max_buffered_frames);
+}
+
+struct PP_Var GetId(PP_Resource video_track) {
+  VLOG(4) << "PPB_MediaStreamVideoTrack::GetId()";
+  EnterResource<PPB_MediaStreamVideoTrack_API> enter(video_track, true);
+  if (enter.failed())
+    return PP_MakeUndefined();
+  return enter.object()->GetId();
+}
+
+PP_Bool HasEnded(PP_Resource video_track) {
+  VLOG(4) << "PPB_MediaStreamVideoTrack::HasEnded()";
+  EnterResource<PPB_MediaStreamVideoTrack_API> enter(video_track, true);
+  if (enter.failed())
+    return PP_TRUE;
+  return enter.object()->HasEnded();
+}
+
+int32_t GetFrame(PP_Resource video_track,
+                 PP_Resource* frame,
+                 struct PP_CompletionCallback callback) {
+  VLOG(4) << "PPB_MediaStreamVideoTrack::GetFrame()";
+  EnterResource<PPB_MediaStreamVideoTrack_API> enter(video_track,
+                                                     callback,
+                                                     true);
+  if (enter.failed())
+    return enter.retval();
+  return enter.SetResult(enter.object()->GetFrame(frame, enter.callback()));
+}
+
+int32_t RecycleFrame(PP_Resource video_track, PP_Resource frame) {
+  VLOG(4) << "PPB_MediaStreamVideoTrack::RecycleFrame()";
+  EnterResource<PPB_MediaStreamVideoTrack_API> enter(video_track, true);
+  if (enter.failed())
+    return enter.retval();
+  return enter.object()->RecycleFrame(frame);
+}
+
+void Close(PP_Resource video_track) {
+  VLOG(4) << "PPB_MediaStreamVideoTrack::Close()";
+  EnterResource<PPB_MediaStreamVideoTrack_API> enter(video_track, true);
+  if (enter.failed())
+    return;
+  enter.object()->Close();
+}
+
+const PPB_MediaStreamVideoTrack_0_1 g_ppb_mediastreamvideotrack_thunk_0_1 = {
+  &IsMediaStreamVideoTrack,
+  &Configure,
+  &GetId,
+  &HasEnded,
+  &GetFrame,
+  &RecycleFrame,
+  &Close
+};
+
+}  // namespace
+
+const PPB_MediaStreamVideoTrack_0_1* GetPPB_MediaStreamVideoTrack_0_1_Thunk() {
+  return &g_ppb_mediastreamvideotrack_thunk_0_1;
+}
+
+}  // namespace thunk
+}  // namespace ppapi
diff --git a/ppapi/thunk/ppb_video_frame_api.h b/ppapi/thunk/ppb_video_frame_api.h
new file mode 100644
index 0000000..50f2247
--- /dev/null
+++ b/ppapi/thunk/ppb_video_frame_api.h
@@ -0,0 +1,28 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PPAPI_THUNK_PPB_VIDEO_FRAME_API_H_
+#define PPAPI_THUNK_PPB_VIDEO_FRAME_API_H_
+
+#include "ppapi/c/ppb_video_frame.h"
+#include "ppapi/thunk/ppapi_thunk_export.h"
+
+namespace ppapi {
+namespace thunk {
+
+class PPAPI_THUNK_EXPORT PPB_VideoFrame_API {
+ public:
+  virtual ~PPB_VideoFrame_API() {}
+  virtual PP_TimeDelta GetTimestamp() = 0;
+  virtual void SetTimestamp(PP_TimeDelta timestamp) = 0;
+  virtual PP_VideoFrame_Format GetFormat() = 0;
+  virtual PP_Bool GetSize(PP_Size* size) = 0;
+  virtual void* GetDataBuffer() = 0;
+  virtual uint32_t GetDataBufferSize() = 0;
+};
+
+}  // namespace thunk
+}  // namespace ppapi
+
+#endif  // PPAPI_THUNK_PPB_VIDEO_FRAME_API_H_
diff --git a/ppapi/thunk/ppb_video_frame_thunk.cc b/ppapi/thunk/ppb_video_frame_thunk.cc
new file mode 100644
index 0000000..82457fd
--- /dev/null
+++ b/ppapi/thunk/ppb_video_frame_thunk.cc
@@ -0,0 +1,92 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// From ppb_video_frame.idl modified Wed Jan  8 13:30:05 2014.
+
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/c/ppb_video_frame.h"
+#include "ppapi/shared_impl/tracked_callback.h"
+#include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/ppb_instance_api.h"
+#include "ppapi/thunk/ppb_video_frame_api.h"
+#include "ppapi/thunk/resource_creation_api.h"
+#include "ppapi/thunk/thunk.h"
+
+namespace ppapi {
+namespace thunk {
+
+namespace {
+
+PP_Bool IsVideoFrame(PP_Resource resource) {
+  VLOG(4) << "PPB_VideoFrame::IsVideoFrame()";
+  EnterResource<PPB_VideoFrame_API> enter(resource, false);
+  return PP_FromBool(enter.succeeded());
+}
+
+PP_TimeDelta GetTimestamp(PP_Resource frame) {
+  VLOG(4) << "PPB_VideoFrame::GetTimestamp()";
+  EnterResource<PPB_VideoFrame_API> enter(frame, true);
+  if (enter.failed())
+    return 0.0;
+  return enter.object()->GetTimestamp();
+}
+
+void SetTimestamp(PP_Resource frame, PP_TimeDelta timestamp) {
+  VLOG(4) << "PPB_VideoFrame::SetTimestamp()";
+  EnterResource<PPB_VideoFrame_API> enter(frame, true);
+  if (enter.failed())
+    return;
+  enter.object()->SetTimestamp(timestamp);
+}
+
+PP_VideoFrame_Format GetFormat(PP_Resource frame) {
+  VLOG(4) << "PPB_VideoFrame::GetFormat()";
+  EnterResource<PPB_VideoFrame_API> enter(frame, true);
+  if (enter.failed())
+    return PP_VIDEOFRAME_FORMAT_UNKNOWN;
+  return enter.object()->GetFormat();
+}
+
+PP_Bool GetSize(PP_Resource frame, struct PP_Size* size) {
+  VLOG(4) << "PPB_VideoFrame::GetSize()";
+  EnterResource<PPB_VideoFrame_API> enter(frame, true);
+  if (enter.failed())
+    return PP_FALSE;
+  return enter.object()->GetSize(size);
+}
+
+void* GetDataBuffer(PP_Resource frame) {
+  VLOG(4) << "PPB_VideoFrame::GetDataBuffer()";
+  EnterResource<PPB_VideoFrame_API> enter(frame, true);
+  if (enter.failed())
+    return NULL;
+  return enter.object()->GetDataBuffer();
+}
+
+uint32_t GetDataBufferSize(PP_Resource frame) {
+  VLOG(4) << "PPB_VideoFrame::GetDataBufferSize()";
+  EnterResource<PPB_VideoFrame_API> enter(frame, true);
+  if (enter.failed())
+    return 0;
+  return enter.object()->GetDataBufferSize();
+}
+
+const PPB_VideoFrame_0_1 g_ppb_videoframe_thunk_0_1 = {
+  &IsVideoFrame,
+  &GetTimestamp,
+  &SetTimestamp,
+  &GetFormat,
+  &GetSize,
+  &GetDataBuffer,
+  &GetDataBufferSize
+};
+
+}  // namespace
+
+const PPB_VideoFrame_0_1* GetPPB_VideoFrame_0_1_Thunk() {
+  return &g_ppb_videoframe_thunk_0_1;
+}
+
+}  // namespace thunk
+}  // namespace ppapi