2fb29ff7f9
Adds a test that ensures the application is able to trigger frame size changes via vpx_codec_enc_config_set() Change-Id: I231c062e533d75c8d63c5f8a5544650117429a63
117 lines
3.0 KiB
C++
117 lines
3.0 KiB
C++
/*
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* Copyright (c) 2012 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef TEST_VIDEO_SOURCE_H_
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#define TEST_VIDEO_SOURCE_H_
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#include "vpx/vpx_encoder.h"
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namespace libvpx_test {
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// Abstract base class for test video sources, which provide a stream of
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// vpx_image_t images with associated timestamps and duration.
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class VideoSource {
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public:
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virtual ~VideoSource() {}
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// Prepare the stream for reading, rewind/open as necessary.
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virtual void Begin() = 0;
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// Advance the cursor to the next frame
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virtual void Next() = 0;
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// Get the current video frame, or NULL on End-Of-Stream.
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virtual vpx_image_t *img() const = 0;
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// Get the presentation timestamp of the current frame.
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virtual vpx_codec_pts_t pts() const = 0;
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// Get the current frame's duration
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virtual unsigned long duration() const = 0;
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// Get the timebase for the stream
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virtual vpx_rational_t timebase() const = 0;
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// Get the current frame counter, starting at 0.
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virtual unsigned int frame() const = 0;
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};
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class DummyVideoSource : public VideoSource {
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public:
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DummyVideoSource() : img_(NULL), limit_(100), width_(0), height_(0) {
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SetSize(80, 64);
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}
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virtual ~DummyVideoSource() { vpx_img_free(img_); }
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virtual void Begin() {
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frame_ = 0;
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FillFrame();
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}
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virtual void Next() {
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++frame_;
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FillFrame();
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}
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virtual vpx_image_t *img() const {
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return (frame_ < limit_) ? img_ : NULL;
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}
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// Models a stream where Timebase = 1/FPS, so pts == frame.
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virtual vpx_codec_pts_t pts() const { return frame_; }
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virtual unsigned long duration() const { return 1; }
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virtual vpx_rational_t timebase() const {
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const vpx_rational_t t = {1, 30};
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return t;
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}
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virtual unsigned int frame() const { return frame_; }
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void SetSize(unsigned int width, unsigned int height) {
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if (width != width_ || height != height_) {
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vpx_img_free(img_);
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raw_sz_ = ((width + 31)&~31) * height * 3 / 2;
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img_ = vpx_img_alloc(NULL, VPX_IMG_FMT_VPXI420, width, height, 32);
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width_ = width;
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height_ = height;
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}
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}
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protected:
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virtual void FillFrame() { memset(img_->img_data, 0, raw_sz_); }
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vpx_image_t *img_;
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size_t raw_sz_;
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unsigned int limit_;
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unsigned int frame_;
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unsigned int width_;
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unsigned int height_;
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};
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class RandomVideoSource : public DummyVideoSource {
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protected:
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// 15 frames of noise, followed by 15 static frames. Reset to 0 rather
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// than holding previous frames to encourage keyframes to be thrown.
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virtual void FillFrame() {
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if (frame_ % 30 < 15)
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for (size_t i = 0; i < raw_sz_; ++i)
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img_->img_data[i] = rand();
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else
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memset(img_->img_data, 0, raw_sz_);
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}
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};
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} // namespace libvpx_test
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#endif // TEST_VIDEO_SOURCE_H_
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