ppapi/proxy/video_frame_resource.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ppapi/proxy/video_frame_resource.h"
   6
   7 #include "base/logging.h"
   8 #include "ppapi/c/pp_bool.h"
   9 #include "ppapi/shared_impl/var.h"
  10
  11 namespace ppapi {
  12 namespace proxy {
  13
  14 VideoFrameResource::VideoFrameResource(PP_Instance instance,
  15                                        int32_t index,
  16                                        MediaStreamBuffer* buffer)
  17     : Resource(OBJECT_IS_PROXY, instance),
  18       index_(index),
  19       buffer_(buffer) {
  20   DCHECK_EQ(buffer_->header.type, MediaStreamBuffer::TYPE_VIDEO);
  21 }
  22
  23 VideoFrameResource::~VideoFrameResource() {
  24   CHECK(!buffer_) << "An unused (or unrecycled) frame is destroyed.";
  25 }
  26
  27 thunk::PPB_VideoFrame_API* VideoFrameResource::AsPPB_VideoFrame_API() {
  28   return this;
  29 }
  30
  31 PP_TimeDelta VideoFrameResource::GetTimestamp() {
  32   if (!buffer_) {
  33     VLOG(1) << "Frame is invalid";
  34     return 0.0;
  35   }
  36   return buffer_->video.timestamp;
  37 }
  38
  39 void VideoFrameResource::SetTimestamp(PP_TimeDelta timestamp) {
  40   if (!buffer_) {
  41     VLOG(1) << "Frame is invalid";
  42     return;
  43   }
  44   buffer_->video.timestamp = timestamp;
  45 }
  46
  47 PP_VideoFrame_Format VideoFrameResource::GetFormat() {
  48   if (!buffer_) {
  49     VLOG(1) << "Frame is invalid";
  50     return PP_VIDEOFRAME_FORMAT_UNKNOWN;
  51   }
  52   return buffer_->video.format;
  53 }
  54
  55 PP_Bool VideoFrameResource::GetSize(PP_Size* size) {
  56   if (!buffer_) {
  57     VLOG(1) << "Frame is invalid";
  58     return PP_FALSE;
  59   }
  60   *size = buffer_->video.size;
  61   return PP_TRUE;
  62 }
  63
  64 void* VideoFrameResource::GetDataBuffer() {
  65   if (!buffer_) {
  66     VLOG(1) << "Frame is invalid";
  67     return NULL;
  68   }
  69   return buffer_->video.data;
  70 }
  71
  72 uint32_t VideoFrameResource::GetDataBufferSize() {
  73   if (!buffer_) {
  74     VLOG(1) << "Frame is invalid";
  75     return 0;
  76   }
  77   return buffer_->video.data_size;
  78 }
  79
  80 MediaStreamBuffer* VideoFrameResource::GetBuffer() {
  81   return buffer_;
  82 }
  83
  84 int32_t VideoFrameResource::GetBufferIndex() {
  85   return index_;
  86 }
  87
  88 void VideoFrameResource::Invalidate() {
  89   DCHECK(buffer_);
  90   DCHECK_GE(index_, 0);
  91   buffer_ = NULL;
  92   index_ = -1;
  93 }
  94
  95 }  // namespace proxy
  96 }  // namespace ppapi