| OLD | NEW |
|---|
| (Empty) |
| 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/shared_impl/media_stream_frame_buffer.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "ppapi/c/pp_errors.h" | |
| 9 | |
| 10 namespace ppapi { | |
| 11 | |
| 12 MediaStreamFrameBuffer::Delegate::~Delegate() {} | |
| 13 | |
| 14 void MediaStreamFrameBuffer::Delegate::OnNewFrameEnqueued() { | |
| 15 } | |
| 16 | |
| 17 MediaStreamFrameBuffer::MediaStreamFrameBuffer(Delegate* delegate) | |
| 18 : delegate_(delegate), | |
| 19 frame_size_(0), | |
| 20 number_of_frames_(0) { | |
| 21 DCHECK(delegate_); | |
| 22 } | |
| 23 | |
| 24 MediaStreamFrameBuffer::~MediaStreamFrameBuffer() { | |
| 25 } | |
| 26 | |
| 27 bool MediaStreamFrameBuffer::SetFrames( | |
| 28 int32_t number_of_frames, | |
| 29 int32_t frame_size, | |
| 30 scoped_ptr<base::SharedMemory> shm, | |
| 31 bool enqueue_all_frames) { | |
| 32 DCHECK(shm); | |
| 33 DCHECK(!shm_); | |
| 34 DCHECK_GT(number_of_frames, 0); | |
| 35 DCHECK_GT(frame_size, static_cast<int32_t>(sizeof(MediaStreamFrame::Header))); | |
| 36 DCHECK_EQ(frame_size & 0x3, 0); | |
| 37 | |
| 38 number_of_frames_ = number_of_frames; | |
| 39 frame_size_ = frame_size; | |
| 40 | |
| 41 int32_t size = number_of_frames_ * frame_size; | |
| 42 shm_ = shm.Pass(); | |
| 43 if (!shm_->Map(size)) | |
| 44 return false; | |
| 45 | |
| 46 uint8_t* p = reinterpret_cast<uint8_t*>(shm_->memory()); | |
| 47 for (int32_t i = 0; i < number_of_frames; ++i) { | |
| 48 if (enqueue_all_frames) | |
| 49 frame_queue_.push_back(i); | |
| 50 frames_.push_back(reinterpret_cast<MediaStreamFrame*>(p)); | |
| 51 p += frame_size_; | |
| 52 } | |
| 53 return true; | |
| 54 } | |
| 55 | |
| 56 int32_t MediaStreamFrameBuffer::DequeueFrame() { | |
| 57 if (frame_queue_.empty()) | |
| 58 return PP_ERROR_FAILED; | |
| 59 int32_t frame = frame_queue_.front(); | |
| 60 frame_queue_.pop_front(); | |
| 61 return frame; | |
| 62 } | |
| 63 | |
| 64 void MediaStreamFrameBuffer::EnqueueFrame(int32_t index) { | |
| 65 DCHECK_GE(index, 0); | |
| 66 DCHECK_LT(index, number_of_frames_); | |
| 67 frame_queue_.push_back(index); | |
| 68 delegate_->OnNewFrameEnqueued(); | |
| 69 } | |
| 70 | |
| 71 MediaStreamFrame* MediaStreamFrameBuffer::GetFramePointer( | |
| 72 int32_t index) { | |
| 73 DCHECK_GE(index, 0); | |
| 74 DCHECK_LT(index, number_of_frames_); | |
| 75 return frames_[index]; | |
| 76 } | |
| 77 | |
| 78 } // namespace ppapi | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 142023008:
[PPAPI][MediaStream] Rename AudioFrame to AudioBuffer (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master