| Index: third_party/libvpx/source/libvpx/test/ivf_video_source.h
|
| diff --git a/third_party/libvpx/source/libvpx/test/ivf_video_source.h b/third_party/libvpx/source/libvpx/test/ivf_video_source.h
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..824a39d7e669c672b708314f7ef42bf3bb36a617
|
| --- /dev/null
|
| +++ b/third_party/libvpx/source/libvpx/test/ivf_video_source.h
|
| @@ -0,0 +1,111 @@
|
| +/*
|
| + * Copyright (c) 2012 The WebM project authors. All Rights Reserved.
|
| + *
|
| + * Use of this source code is governed by a BSD-style license
|
| + * that can be found in the LICENSE file in the root of the source
|
| + * tree. An additional intellectual property rights grant can be found
|
| + * in the file PATENTS. All contributing project authors may
|
| + * be found in the AUTHORS file in the root of the source tree.
|
| + */
|
| +#ifndef TEST_IVF_VIDEO_SOURCE_H_
|
| +#define TEST_IVF_VIDEO_SOURCE_H_
|
| +#include <cstdio>
|
| +#include <cstdlib>
|
| +#include <new>
|
| +#include <string>
|
| +#include "test/video_source.h"
|
| +
|
| +namespace libvpx_test {
|
| +const unsigned int kCodeBufferSize = 256 * 1024;
|
| +const unsigned int kIvfFileHdrSize = 32;
|
| +const unsigned int kIvfFrameHdrSize = 12;
|
| +
|
| +static unsigned int MemGetLe32(const uint8_t *mem) {
|
| + return (mem[3] << 24) | (mem[2] << 16) | (mem[1] << 8) | (mem[0]);
|
| +}
|
| +
|
| +// This class extends VideoSource to allow parsing of ivf files,
|
| +// so that we can do actual file decodes.
|
| +class IVFVideoSource : public CompressedVideoSource {
|
| + public:
|
| + explicit IVFVideoSource(const std::string &file_name)
|
| + : file_name_(file_name),
|
| + input_file_(NULL),
|
| + compressed_frame_buf_(NULL),
|
| + frame_sz_(0),
|
| + frame_(0),
|
| + end_of_file_(false) {
|
| + }
|
| +
|
| + virtual ~IVFVideoSource() {
|
| + delete[] compressed_frame_buf_;
|
| +
|
| + if (input_file_)
|
| + fclose(input_file_);
|
| + }
|
| +
|
| + virtual void Init() {
|
| + // Allocate a buffer for read in the compressed video frame.
|
| + compressed_frame_buf_ = new uint8_t[libvpx_test::kCodeBufferSize];
|
| + ASSERT_TRUE(compressed_frame_buf_ != NULL)
|
| + << "Allocate frame buffer failed";
|
| + }
|
| +
|
| + virtual void Begin() {
|
| + input_file_ = OpenTestDataFile(file_name_);
|
| + ASSERT_TRUE(input_file_ != NULL) << "Input file open failed. Filename: "
|
| + << file_name_;
|
| +
|
| + // Read file header
|
| + uint8_t file_hdr[kIvfFileHdrSize];
|
| + ASSERT_EQ(kIvfFileHdrSize, fread(file_hdr, 1, kIvfFileHdrSize, input_file_))
|
| + << "File header read failed.";
|
| + // Check file header
|
| + ASSERT_TRUE(file_hdr[0] == 'D' && file_hdr[1] == 'K' && file_hdr[2] == 'I'
|
| + && file_hdr[3] == 'F') << "Input is not an IVF file.";
|
| +
|
| + FillFrame();
|
| + }
|
| +
|
| + virtual void Next() {
|
| + ++frame_;
|
| + FillFrame();
|
| + }
|
| +
|
| + void FillFrame() {
|
| + ASSERT_TRUE(input_file_ != NULL);
|
| + uint8_t frame_hdr[kIvfFrameHdrSize];
|
| + // Check frame header and read a frame from input_file.
|
| + if (fread(frame_hdr, 1, kIvfFrameHdrSize, input_file_)
|
| + != kIvfFrameHdrSize) {
|
| + end_of_file_ = true;
|
| + } else {
|
| + end_of_file_ = false;
|
| +
|
| + frame_sz_ = MemGetLe32(frame_hdr);
|
| + ASSERT_LE(frame_sz_, kCodeBufferSize)
|
| + << "Frame is too big for allocated code buffer";
|
| + ASSERT_EQ(frame_sz_,
|
| + fread(compressed_frame_buf_, 1, frame_sz_, input_file_))
|
| + << "Failed to read complete frame";
|
| + }
|
| + }
|
| +
|
| + virtual const uint8_t *cxdata() const {
|
| + return end_of_file_ ? NULL : compressed_frame_buf_;
|
| + }
|
| + virtual size_t frame_size() const { return frame_sz_; }
|
| + virtual unsigned int frame_number() const { return frame_; }
|
| +
|
| + protected:
|
| + std::string file_name_;
|
| + FILE *input_file_;
|
| + uint8_t *compressed_frame_buf_;
|
| + size_t frame_sz_;
|
| + unsigned int frame_;
|
| + bool end_of_file_;
|
| +};
|
| +
|
| +} // namespace libvpx_test
|
| +
|
| +#endif // TEST_IVF_VIDEO_SOURCE_H_
|
|
|