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/*
* libjingle
* Copyright 2008 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/base/gunit.h"
#include "talk/media/base/videocommon.h"
namespace cricket {
TEST(VideoCommonTest, TestCanonicalFourCC) {
// Canonical fourccs are not changed.
EXPECT_EQ(FOURCC_I420, CanonicalFourCC(FOURCC_I420));
// The special FOURCC_ANY value is not changed.
EXPECT_EQ(FOURCC_ANY, CanonicalFourCC(FOURCC_ANY));
// Aliases are translated to the canonical equivalent.
EXPECT_EQ(FOURCC_I420, CanonicalFourCC(FOURCC_IYUV));
EXPECT_EQ(FOURCC_I422, CanonicalFourCC(FOURCC_YU16));
EXPECT_EQ(FOURCC_I444, CanonicalFourCC(FOURCC_YU24));
EXPECT_EQ(FOURCC_YUY2, CanonicalFourCC(FOURCC_YUYV));
EXPECT_EQ(FOURCC_YUY2, CanonicalFourCC(FOURCC_YUVS));
EXPECT_EQ(FOURCC_UYVY, CanonicalFourCC(FOURCC_HDYC));
EXPECT_EQ(FOURCC_UYVY, CanonicalFourCC(FOURCC_2VUY));
EXPECT_EQ(FOURCC_MJPG, CanonicalFourCC(FOURCC_JPEG));
EXPECT_EQ(FOURCC_MJPG, CanonicalFourCC(FOURCC_DMB1));
EXPECT_EQ(FOURCC_BGGR, CanonicalFourCC(FOURCC_BA81));
EXPECT_EQ(FOURCC_RAW, CanonicalFourCC(FOURCC_RGB3));
EXPECT_EQ(FOURCC_24BG, CanonicalFourCC(FOURCC_BGR3));
EXPECT_EQ(FOURCC_BGRA, CanonicalFourCC(FOURCC_CM32));
EXPECT_EQ(FOURCC_RAW, CanonicalFourCC(FOURCC_CM24));
}
// Test conversion between interval and fps
TEST(VideoCommonTest, TestVideoFormatFps) {
EXPECT_EQ(VideoFormat::kMinimumInterval, VideoFormat::FpsToInterval(0));
EXPECT_EQ(talk_base::kNumNanosecsPerSec / 20, VideoFormat::FpsToInterval(20));
EXPECT_EQ(20, VideoFormat::IntervalToFps(talk_base::kNumNanosecsPerSec / 20));
}
// Test IsSize0x0
TEST(VideoCommonTest, TestVideoFormatIsSize0x0) {
VideoFormat format;
EXPECT_TRUE(format.IsSize0x0());
format.width = 320;
EXPECT_FALSE(format.IsSize0x0());
}
// Test ToString: print fourcc when it is printable.
TEST(VideoCommonTest, TestVideoFormatToString) {
VideoFormat format;
EXPECT_EQ("0x0x10000", format.ToString());
format.fourcc = FOURCC_I420;
format.width = 640;
format.height = 480;
format.interval = VideoFormat::FpsToInterval(20);
EXPECT_EQ("I420 640x480x20", format.ToString());
format.fourcc = FOURCC_ANY;
format.width = 640;
format.height = 480;
format.interval = VideoFormat::FpsToInterval(20);
EXPECT_EQ("640x480x20", format.ToString());
}
// Test comparison.
TEST(VideoCommonTest, TestVideoFormatCompare) {
VideoFormat format(640, 480, VideoFormat::FpsToInterval(20), FOURCC_I420);
VideoFormat format2;
EXPECT_NE(format, format2);
// Same pixelrate, different fourcc.
format2 = format;
format2.fourcc = FOURCC_YUY2;
EXPECT_NE(format, format2);
EXPECT_FALSE(format.IsPixelRateLess(format2) ||
format2.IsPixelRateLess(format2));
format2 = format;
format2.interval /= 2;
EXPECT_TRUE(format.IsPixelRateLess(format2));
format2 = format;
format2.width *= 2;
EXPECT_TRUE(format.IsPixelRateLess(format2));
}
TEST(VideoCommonTest, TestComputeScaleWithLowFps) {
int scaled_width, scaled_height;
// Request small enough. Expect no change.
ComputeScale(2560, 1600, 5, &scaled_width, &scaled_height);
EXPECT_EQ(2560, scaled_width);
EXPECT_EQ(1600, scaled_height);
// Request too many pixels. Expect 1/2 size.
ComputeScale(4096, 2560, 5, &scaled_width, &scaled_height);
EXPECT_EQ(2048, scaled_width);
EXPECT_EQ(1280, scaled_height);
// Request too many pixels and too wide and tall. Expect 1/4 size.
ComputeScale(16000, 10000, 5, &scaled_width, &scaled_height);
EXPECT_EQ(2000, scaled_width);
EXPECT_EQ(1250, scaled_height);
// Request too wide. (two 30 inch monitors). Expect 1/2 size.
ComputeScale(5120, 1600, 5, &scaled_width, &scaled_height);
EXPECT_EQ(2560, scaled_width);
EXPECT_EQ(800, scaled_height);
// Request too wide but not too many pixels. Expect 1/2 size.
ComputeScale(8192, 1024, 5, &scaled_width, &scaled_height);
EXPECT_EQ(4096, scaled_width);
EXPECT_EQ(512, scaled_height);
// Request too tall. Expect 1/4 size.
ComputeScale(1024, 8192, 5, &scaled_width, &scaled_height);
EXPECT_EQ(256, scaled_width);
EXPECT_EQ(2048, scaled_height);
}
// Same as TestComputeScale but with 15 fps instead of 5 fps.
TEST(VideoCommonTest, TestComputeScaleWithHighFps) {
int scaled_width, scaled_height;
// Request small enough but high fps. Expect 1/2 size.
ComputeScale(2560, 1600, 15, &scaled_width, &scaled_height);
EXPECT_EQ(1280, scaled_width);
EXPECT_EQ(800, scaled_height);
// Request too many pixels. Expect 1/2 size.
ComputeScale(4096, 2560, 15, &scaled_width, &scaled_height);
EXPECT_EQ(2048, scaled_width);
EXPECT_EQ(1280, scaled_height);
// Request too many pixels and too wide and tall. Expect 1/16 size.
ComputeScale(64000, 40000, 15, &scaled_width, &scaled_height);
EXPECT_EQ(4000, scaled_width);
EXPECT_EQ(2500, scaled_height);
// Request too wide. (two 30 inch monitors). Expect 1/2 size.
ComputeScale(5120, 1600, 15, &scaled_width, &scaled_height);
EXPECT_EQ(2560, scaled_width);
EXPECT_EQ(800, scaled_height);
// Request too wide but not too many pixels. Expect 1/2 size.
ComputeScale(8192, 1024, 15, &scaled_width, &scaled_height);
EXPECT_EQ(4096, scaled_width);
EXPECT_EQ(512, scaled_height);
// Request too tall. Expect 1/4 size.
ComputeScale(1024, 8192, 15, &scaled_width, &scaled_height);
EXPECT_EQ(256, scaled_width);
EXPECT_EQ(2048, scaled_height);
}
TEST(VideoCommonTest, TestComputeCrop) {
int cropped_width, cropped_height;
// Request 16:9 to 16:9. Expect no cropping.
ComputeCrop(1280, 720, // Crop size 16:9
640, 360, // Frame is 4:3
1, 1, // Normal 1:1 pixels
0,
&cropped_width, &cropped_height);
EXPECT_EQ(640, cropped_width);
EXPECT_EQ(360, cropped_height);
// Request 4:3 to 16:9. Expect vertical.
ComputeCrop(640, 360, // Crop size 16:9
640, 480, // Frame is 4:3
1, 1, // Normal 1:1 pixels
0,
&cropped_width, &cropped_height);
EXPECT_EQ(640, cropped_width);
EXPECT_EQ(360, cropped_height);
// Request 16:9 to 4:3. Expect horizontal crop.
ComputeCrop(640, 480, // Crop size 4:3
640, 360, // Frame is 16:9
1, 1, // Normal 1:1 pixels
0,
&cropped_width, &cropped_height);
EXPECT_EQ(480, cropped_width);
EXPECT_EQ(360, cropped_height);
// Request 16:9 but VGA has 3:8 pixel aspect ratio. Expect no crop.
// This occurs on HP4110 on OSX 10.5/10.6/10.7
ComputeCrop(640, 360, // Crop size 16:9
640, 480, // Frame is 4:3
3, 8, // Pixel aspect ratio is tall
0,
&cropped_width, &cropped_height);
EXPECT_EQ(640, cropped_width);
EXPECT_EQ(480, cropped_height);
// Request 16:9 but QVGA has 15:11 pixel aspect ratio. Expect horizontal crop.
// This occurs on Logitech B910 on OSX 10.5/10.6/10.7 in Hangouts.
ComputeCrop(640, 360, // Crop size 16:9
320, 240, // Frame is 4:3
15, 11, // Pixel aspect ratio is wide
0,
&cropped_width, &cropped_height);
EXPECT_EQ(312, cropped_width);
EXPECT_EQ(240, cropped_height);
// Request 16:10 but QVGA has 15:11 pixel aspect ratio.
// Expect horizontal crop.
// This occurs on Logitech B910 on OSX 10.5/10.6/10.7 in gmail.
ComputeCrop(640, 400, // Crop size 16:10
320, 240, // Frame is 4:3
15, 11, // Pixel aspect ratio is wide
0,
&cropped_width, &cropped_height);
EXPECT_EQ(280, cropped_width);
EXPECT_EQ(240, cropped_height);
// Request 16:9 but VGA has 6:5 pixel aspect ratio. Expect vertical crop.
// This occurs on Logitech QuickCam Pro C9000 on OSX
ComputeCrop(640, 360, // Crop size 16:9
640, 480, // Frame is 4:3
6, 5, // Pixel aspect ratio is wide
0,
&cropped_width, &cropped_height);
EXPECT_EQ(640, cropped_width);
EXPECT_EQ(432, cropped_height);
// Request 16:10 but HD is 16:9. Expect horizontal crop.
// This occurs in settings and local preview with HD experiment.
ComputeCrop(1280, 800, // Crop size 16:10
1280, 720, // Frame is 4:3
1, 1, // Pixel aspect ratio is wide
0,
&cropped_width, &cropped_height);
EXPECT_EQ(1152, cropped_width);
EXPECT_EQ(720, cropped_height);
// Request 16:9 but HD has 3:4 pixel aspect ratio. Expect vertical crop.
// This occurs on Logitech B910 on OSX 10.5/10.6.7 but not OSX 10.6.8 or 10.7
ComputeCrop(1280, 720, // Crop size 16:9
1280, 720, // Frame is 4:3
3, 4, // Pixel aspect ratio is wide
0,
&cropped_width, &cropped_height);
EXPECT_EQ(1280, cropped_width);
EXPECT_EQ(540, cropped_height);
// Request 16:9 to 3:4 (portrait). Expect no cropping.
ComputeCrop(640, 360, // Crop size 16:9
640, 480, // Frame is 3:4 portrait
1, 1, // Normal 1:1 pixels
90,
&cropped_width, &cropped_height);
EXPECT_EQ(640, cropped_width);
EXPECT_EQ(480, cropped_height);
// Cropped size 0x0. Expect no cropping.
// This is used when adding multiple capturers
ComputeCrop(0, 0, // Crop size 0x0
1024, 768, // Frame is 3:4 portrait
1, 1, // Normal 1:1 pixels
0,
&cropped_width, &cropped_height);
EXPECT_EQ(1024, cropped_width);
EXPECT_EQ(768, cropped_height);
}
TEST(VideoCommonTest, TestComputeScaleToSquarePixels) {
int scaled_width, scaled_height;
// Pixel aspect ratio is 4:3. Logical aspect ratio is 16:9. Expect scale
// to square pixels with physical aspect ratio of 16:9.
ComputeScaleToSquarePixels(640, 480,
4, 3, // 4 x 3 pixel aspect ratio
&scaled_width, &scaled_height);
EXPECT_EQ(640, scaled_width);
EXPECT_EQ(360, scaled_height);
// Pixel aspect ratio is 3:8. Physical aspect ratio is 4:3. Expect scale
// to square pixels with logical aspect ratio of 1:2.
// Note that 640x1280 will be scaled down by video adapter to view request
// of 640*360 and will end up using 320x640.
ComputeScaleToSquarePixels(640, 480,
3, 8, // 4 x 3 pixel aspect ratio
&scaled_width, &scaled_height);
EXPECT_EQ(640, scaled_width);
EXPECT_EQ(1280, scaled_height);
}
} // namespace cricket