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* Copyright 2011, Google Inc.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "talk/app/webrtc/test/fileframesource.h"
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#include "talk/base/stream.h"
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FileFrameSource::FileFrameSource()
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: i420_file_(new talk_base::FileStream()) {}
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FileFrameSource::~FileFrameSource() {}
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FileFrameSource* FileFrameSource::Create(const std::string& file_name) {
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FileFrameSource* file_frame_source = new FileFrameSource();
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if (!file_frame_source->Init(file_name)) {
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delete file_frame_source;
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return file_frame_source;
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bool FileFrameSource::GetFrame(uint8* frame, size_t* size_in_bytes) {
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talk_base::StreamResult state = i420_file_->Read(
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GetI420FrameLengthInBytes(),
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if (state == talk_base::SR_EOS) {
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// Loop file if end is reached.
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if (!i420_file_->SetPosition(0)) {
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state = i420_file_->Read(frame, GetI420FrameLengthInBytes(), size_in_bytes,
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if (state != talk_base::SR_SUCCESS) {
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ASSERT(*size_in_bytes == GetI420FrameLengthInBytes());
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bool FileFrameSource::Init(const std::string& file_name) {
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const bool success = i420_file_->Open(file_name, "rb", &error);
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LOG(LS_ERROR) << "Opening file " << file_name <<
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"failed with error code: " << error << ".";
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size_t FileFrameSource::GetI420FrameLengthInBytes() {
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return webrtc_testing::GetI420FrameLengthInBytes(width_, height_);