2 * Copyright (c) 2012 The WebM project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
10 #ifndef TEST_Y4M_VIDEO_SOURCE_H_
11 #define TEST_Y4M_VIDEO_SOURCE_H_
14 #include "test/video_source.h"
16 #include "./y4minput.h"
19 namespace libvpx_test {
21 // This class extends VideoSource to allow parsing of raw yv12
22 // so that we can do actual file encodes.
23 class Y4mVideoSource : public VideoSource {
25 Y4mVideoSource(const std::string &file_name,
26 unsigned int start, int limit)
27 : file_name_(file_name),
29 img_(new vpx_image_t()),
33 framerate_numerator_(0),
34 framerate_denominator_(0),
38 virtual ~Y4mVideoSource() {
39 vpx_img_free(img_.get());
40 y4m_input_close(&y4m_);
45 virtual void Begin() {
48 input_file_ = OpenTestDataFile(file_name_);
49 ASSERT_TRUE(input_file_ != NULL) << "Input file open failed. Filename: "
52 y4m_input_open(&y4m_, input_file_, NULL, 0, 0);
53 framerate_numerator_ = y4m_.fps_n;
54 framerate_denominator_ = y4m_.fps_d;
57 for (unsigned int i = 0; i < start_; i++) {
69 virtual vpx_image_t *img() const {
70 return (frame_ < limit_) ? img_.get() : NULL;
73 // Models a stream where Timebase = 1/FPS, so pts == frame.
74 virtual vpx_codec_pts_t pts() const { return frame_; }
76 virtual unsigned long duration() const { return 1; }
78 virtual vpx_rational_t timebase() const {
79 const vpx_rational_t t = { framerate_denominator_, framerate_numerator_ };
83 virtual unsigned int frame() const { return frame_; }
85 virtual unsigned int limit() const { return limit_; }
87 virtual void FillFrame() {
88 ASSERT_TRUE(input_file_ != NULL);
89 // Read a frame from input_file.
90 y4m_input_fetch_frame(&y4m_, input_file_, img_.get());
94 std::string file_name_;
96 testing::internal::scoped_ptr<vpx_image_t> img_;
100 int framerate_numerator_;
101 int framerate_denominator_;
105 } // namespace libvpx_test
107 #endif // TEST_Y4M_VIDEO_SOURCE_H_