[PPAPI] API definition for video media stream artifacts

This API follows the design at
https://docs.google.com/a/google.com/document/d/1rlwmFhf7VCX8mfrBok8wqXNgvr_ERhL2k6Fqha-pgIo/edit?disco=AAAAAHos8Y8#


It defines new objects for the consumption of media video tracks based on the private VideoSource/VideoDestination classes.

BUG=330851

Review URL: https://codereview.chromium.org/107083004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243099 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 139 insertions, 0 deletions

diff --git a/ppapi/c/ppb_video_frame.h b/ppapi/c/ppb_video_frame.h
new file mode 100644
index 0000000..02fdc80
--- /dev/null
+++ b/ppapi/c/ppb_video_frame.h
@@ -0,0 +1,139 @@
+/* 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 Fri Dec 27 17:21:52 2013. */
+
+#ifndef PPAPI_C_PPB_VIDEO_FRAME_H_
+#define PPAPI_C_PPB_VIDEO_FRAME_H_
+
+#include "ppapi/c/pp_bool.h"
+#include "ppapi/c/pp_macros.h"
+#include "ppapi/c/pp_resource.h"
+#include "ppapi/c/pp_size.h"
+#include "ppapi/c/pp_stdint.h"
+#include "ppapi/c/pp_time.h"
+
+#define PPB_VIDEOFRAME_INTERFACE_0_1 "PPB_VideoFrame;0.1" /* dev */
+/**
+ * @file
+ * Defines the <code>PPB_VideoFrame</code> interface.
+ */
+
+
+/**
+ * @addtogroup Enums
+ * @{
+ */
+typedef enum {
+  /**
+   * Unknown format value.
+   */
+  PP_VIDEOFRAME_FORMAT_UNKNOWN = 0,
+  /**
+   * 12bpp YVU planar 1x1 Y, 2x2 VU samples.
+   */
+  PP_VIDEOFRAME_FORMAT_YV12 = 1,
+  /**
+   * 16bpp YVU planar 1x1 Y, 2x1 VU samples.
+   */
+  PP_VIDEOFRAME_FORMAT_YV16 = 2,
+  /**
+   * 12bpp YVU planar 1x1 Y, 2x2 VU samples.
+   */
+  PP_VIDEOFRAME_FORMAT_I420 = 3,
+  /**
+   * 20bpp YVU planar 1x1 Y, 2x2 VU, 1x1 A samples.
+   */
+  PP_VIDEOFRAME_FORMAT_YV12A = 4,
+  /**
+   * JPEG color range version of YV12.
+   */
+  PP_VIDEOFRAME_FORMAT_YV12J = 5
+} PP_VideoFrame_Format;
+/**
+ * @}
+ */
+
+/**
+ * @addtogroup Interfaces
+ * @{
+ */
+struct PPB_VideoFrame_0_1 { /* dev */
+  /**
+   * Determines if a resource is a VideoFrame resource.
+   *
+   * @param[in] resource The <code>PP_Resource</code> to test.
+   *
+   * @return A <code>PP_Bool</code> with <code>PP_TRUE</code> if the given
+   * resource is a VideoFrame resource or <code>PP_FALSE</code> otherwise.
+   */
+  PP_Bool (*IsVideoFrame)(PP_Resource resource);
+  /**
+   * Gets the timestamp of the video frame.
+   *
+   * @param[in] frame A <code>PP_Resource</code> corresponding to a video frame
+   * resource.
+   *
+   * @return A <code>PP_TimeDelta</code> containing the timestamp of the video
+   * frame. Given in seconds since the start of the containing video stream.
+   */
+  PP_TimeDelta (*GetTimestamp)(PP_Resource frame);
+  /**
+   * Sets the timestamp of the video frame. Given in seconds since the
+   * start of the containing video stream.
+   *
+   * @param[in] frame A <code>PP_Resource</code> corresponding to a video frame
+   * resource.
+   * @param[in] timestamp A <code>PP_TimeDelta</code> containing the timestamp
+   * of the video frame. Given in seconds since the start of the containing
+   * video stream.
+   */
+  void (*SetTimestamp)(PP_Resource frame, PP_TimeDelta timestamp);
+  /**
+   * Gets the format of the video frame.
+   *
+   * @param[in] frame A <code>PP_Resource</code> corresponding to a video frame
+   * resource.
+   *
+   * @return A <code>PP_VideoFrame_Format</code> containing the format of the
+   * video frame.
+   */
+  PP_VideoFrame_Format (*GetFormat)(PP_Resource frame);
+  /**
+   * Gets the size of the video frame.
+   *
+   * @param[in] frame A <code>PP_Resource</code> corresponding to a video frame
+   * resource.
+   * @param[out] size A <code>PP_Size</code>.
+   *
+   * @return A <code>PP_Bool</code> with <code>PP_TRUE</code> on success or
+   * <code>PP_FALSE</code> on failure.
+   */
+  PP_Bool (*GetSize)(PP_Resource frame, struct PP_Size* size);
+  /**
+   * Gets the data buffer for video frame pixels.
+   *
+   * @param[in] frame A <code>PP_Resource</code> corresponding to a video frame
+   * resource.
+   *
+   * @return A pointer to the beginning of the data buffer.
+   */
+  void* (*GetDataBuffer)(PP_Resource frame);
+  /**
+   * Gets the size of data buffer.
+   *
+   * @param[in] frame A <code>PP_Resource</code> corresponding to a video frame
+   * resource.
+   *
+   * @return The size of the data buffer.
+   */
+  uint32_t (*GetDataBufferSize)(PP_Resource frame);
+};
+/**
+ * @}
+ */
+
+#endif  /* PPAPI_C_PPB_VIDEO_FRAME_H_ */
+