1 /*
2 * libjingle
3 * Copyright 2008 Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include "talk/media/base/videocommon.h"
29 #include "webrtc/base/gunit.h"
30
31 namespace cricket {
32
TEST(VideoCommonTest,TestCanonicalFourCC)33 TEST(VideoCommonTest, TestCanonicalFourCC) {
34 // Canonical fourccs are not changed.
35 EXPECT_EQ(FOURCC_I420, CanonicalFourCC(FOURCC_I420));
36 // The special FOURCC_ANY value is not changed.
37 EXPECT_EQ(FOURCC_ANY, CanonicalFourCC(FOURCC_ANY));
38 // Aliases are translated to the canonical equivalent.
39 EXPECT_EQ(FOURCC_I420, CanonicalFourCC(FOURCC_IYUV));
40 EXPECT_EQ(FOURCC_I422, CanonicalFourCC(FOURCC_YU16));
41 EXPECT_EQ(FOURCC_I444, CanonicalFourCC(FOURCC_YU24));
42 EXPECT_EQ(FOURCC_YUY2, CanonicalFourCC(FOURCC_YUYV));
43 EXPECT_EQ(FOURCC_YUY2, CanonicalFourCC(FOURCC_YUVS));
44 EXPECT_EQ(FOURCC_UYVY, CanonicalFourCC(FOURCC_HDYC));
45 EXPECT_EQ(FOURCC_UYVY, CanonicalFourCC(FOURCC_2VUY));
46 EXPECT_EQ(FOURCC_MJPG, CanonicalFourCC(FOURCC_JPEG));
47 EXPECT_EQ(FOURCC_MJPG, CanonicalFourCC(FOURCC_DMB1));
48 EXPECT_EQ(FOURCC_BGGR, CanonicalFourCC(FOURCC_BA81));
49 EXPECT_EQ(FOURCC_RAW, CanonicalFourCC(FOURCC_RGB3));
50 EXPECT_EQ(FOURCC_24BG, CanonicalFourCC(FOURCC_BGR3));
51 EXPECT_EQ(FOURCC_BGRA, CanonicalFourCC(FOURCC_CM32));
52 EXPECT_EQ(FOURCC_RAW, CanonicalFourCC(FOURCC_CM24));
53 }
54
55 // Test conversion between interval and fps
TEST(VideoCommonTest,TestVideoFormatFps)56 TEST(VideoCommonTest, TestVideoFormatFps) {
57 EXPECT_EQ(VideoFormat::kMinimumInterval, VideoFormat::FpsToInterval(0));
58 EXPECT_EQ(rtc::kNumNanosecsPerSec / 20, VideoFormat::FpsToInterval(20));
59 EXPECT_EQ(20, VideoFormat::IntervalToFps(rtc::kNumNanosecsPerSec / 20));
60 EXPECT_EQ(0, VideoFormat::IntervalToFps(0));
61 }
62
63 // Test IsSize0x0
TEST(VideoCommonTest,TestVideoFormatIsSize0x0)64 TEST(VideoCommonTest, TestVideoFormatIsSize0x0) {
65 VideoFormat format;
66 EXPECT_TRUE(format.IsSize0x0());
67 format.width = 320;
68 EXPECT_FALSE(format.IsSize0x0());
69 }
70
71 // Test ToString: print fourcc when it is printable.
TEST(VideoCommonTest,TestVideoFormatToString)72 TEST(VideoCommonTest, TestVideoFormatToString) {
73 VideoFormat format;
74 EXPECT_EQ("0x0x0", format.ToString());
75
76 format.fourcc = FOURCC_I420;
77 format.width = 640;
78 format.height = 480;
79 format.interval = VideoFormat::FpsToInterval(20);
80 EXPECT_EQ("I420 640x480x20", format.ToString());
81
82 format.fourcc = FOURCC_ANY;
83 format.width = 640;
84 format.height = 480;
85 format.interval = VideoFormat::FpsToInterval(20);
86 EXPECT_EQ("640x480x20", format.ToString());
87 }
88
89 // Test comparison.
TEST(VideoCommonTest,TestVideoFormatCompare)90 TEST(VideoCommonTest, TestVideoFormatCompare) {
91 VideoFormat format(640, 480, VideoFormat::FpsToInterval(20), FOURCC_I420);
92 VideoFormat format2;
93 EXPECT_NE(format, format2);
94
95 // Same pixelrate, different fourcc.
96 format2 = format;
97 format2.fourcc = FOURCC_YUY2;
98 EXPECT_NE(format, format2);
99 EXPECT_FALSE(format.IsPixelRateLess(format2) ||
100 format2.IsPixelRateLess(format2));
101
102 format2 = format;
103 format2.interval /= 2;
104 EXPECT_TRUE(format.IsPixelRateLess(format2));
105
106 format2 = format;
107 format2.width *= 2;
108 EXPECT_TRUE(format.IsPixelRateLess(format2));
109 }
110
TEST(VideoCommonTest,TestComputeScaleWithLowFps)111 TEST(VideoCommonTest, TestComputeScaleWithLowFps) {
112 int scaled_width, scaled_height;
113
114 // Request small enough. Expect no change.
115 ComputeScale(2560, 1600, 5, &scaled_width, &scaled_height);
116 EXPECT_EQ(2560, scaled_width);
117 EXPECT_EQ(1600, scaled_height);
118
119 // Request too many pixels. Expect 1/2 size.
120 ComputeScale(4096, 2560, 5, &scaled_width, &scaled_height);
121 EXPECT_EQ(2048, scaled_width);
122 EXPECT_EQ(1280, scaled_height);
123
124 // Request too many pixels and too wide and tall. Expect 1/4 size.
125 ComputeScale(16000, 10000, 5, &scaled_width, &scaled_height);
126 EXPECT_EQ(2000, scaled_width);
127 EXPECT_EQ(1250, scaled_height);
128
129 // Request too wide. (two 30 inch monitors). Expect 1/2 size.
130 ComputeScale(5120, 1600, 5, &scaled_width, &scaled_height);
131 EXPECT_EQ(2560, scaled_width);
132 EXPECT_EQ(800, scaled_height);
133
134 // Request too wide but not too many pixels. Expect 1/2 size.
135 ComputeScale(8192, 1024, 5, &scaled_width, &scaled_height);
136 EXPECT_EQ(4096, scaled_width);
137 EXPECT_EQ(512, scaled_height);
138
139 // Request too tall. Expect 1/4 size.
140 ComputeScale(1024, 8192, 5, &scaled_width, &scaled_height);
141 EXPECT_EQ(256, scaled_width);
142 EXPECT_EQ(2048, scaled_height);
143 }
144
145 // Same as TestComputeScale but with 15 fps instead of 5 fps.
TEST(VideoCommonTest,TestComputeScaleWithHighFps)146 TEST(VideoCommonTest, TestComputeScaleWithHighFps) {
147 int scaled_width, scaled_height;
148
149 // Request small enough but high fps. Expect 1/2 size.
150 ComputeScale(2560, 1600, 15, &scaled_width, &scaled_height);
151 EXPECT_EQ(1280, scaled_width);
152 EXPECT_EQ(800, scaled_height);
153
154 // Request too many pixels. Expect 1/2 size.
155 ComputeScale(4096, 2560, 15, &scaled_width, &scaled_height);
156 EXPECT_EQ(2048, scaled_width);
157 EXPECT_EQ(1280, scaled_height);
158
159 // Request too many pixels and too wide and tall. Expect 1/16 size.
160 ComputeScale(64000, 40000, 15, &scaled_width, &scaled_height);
161 EXPECT_EQ(4000, scaled_width);
162 EXPECT_EQ(2500, scaled_height);
163
164 // Request too wide. (two 30 inch monitors). Expect 1/2 size.
165 ComputeScale(5120, 1600, 15, &scaled_width, &scaled_height);
166 EXPECT_EQ(2560, scaled_width);
167 EXPECT_EQ(800, scaled_height);
168
169 // Request too wide but not too many pixels. Expect 1/2 size.
170 ComputeScale(8192, 1024, 15, &scaled_width, &scaled_height);
171 EXPECT_EQ(4096, scaled_width);
172 EXPECT_EQ(512, scaled_height);
173
174 // Request too tall. Expect 1/4 size.
175 ComputeScale(1024, 8192, 15, &scaled_width, &scaled_height);
176 EXPECT_EQ(256, scaled_width);
177 EXPECT_EQ(2048, scaled_height);
178 }
179
TEST(VideoCommonTest,TestComputeCrop)180 TEST(VideoCommonTest, TestComputeCrop) {
181 int cropped_width, cropped_height;
182
183 // Request 16:9 to 16:9. Expect no cropping.
184 ComputeCrop(1280, 720, // Crop size 16:9
185 640, 360, // Frame is 4:3
186 1, 1, // Normal 1:1 pixels
187 0,
188 &cropped_width, &cropped_height);
189 EXPECT_EQ(640, cropped_width);
190 EXPECT_EQ(360, cropped_height);
191
192 // Request 4:3 to 16:9. Expect vertical.
193 ComputeCrop(640, 360, // Crop size 16:9
194 640, 480, // Frame is 4:3
195 1, 1, // Normal 1:1 pixels
196 0,
197 &cropped_width, &cropped_height);
198 EXPECT_EQ(640, cropped_width);
199 EXPECT_EQ(360, cropped_height);
200
201 // Request 16:9 to 4:3. Expect horizontal crop.
202 ComputeCrop(640, 480, // Crop size 4:3
203 640, 360, // Frame is 16:9
204 1, 1, // Normal 1:1 pixels
205 0,
206 &cropped_width, &cropped_height);
207 EXPECT_EQ(480, cropped_width);
208 EXPECT_EQ(360, cropped_height);
209
210 // Request 16:9 but VGA has 3:8 pixel aspect ratio. Expect no crop.
211 // This occurs on HP4110 on OSX 10.5/10.6/10.7
212 ComputeCrop(640, 360, // Crop size 16:9
213 640, 480, // Frame is 4:3
214 3, 8, // Pixel aspect ratio is tall
215 0,
216 &cropped_width, &cropped_height);
217 EXPECT_EQ(640, cropped_width);
218 EXPECT_EQ(480, cropped_height);
219
220 // Request 16:9 but QVGA has 15:11 pixel aspect ratio. Expect horizontal crop.
221 // This occurs on Logitech B910 on OSX 10.5/10.6/10.7 in Hangouts.
222 ComputeCrop(640, 360, // Crop size 16:9
223 320, 240, // Frame is 4:3
224 15, 11, // Pixel aspect ratio is wide
225 0,
226 &cropped_width, &cropped_height);
227 EXPECT_EQ(312, cropped_width);
228 EXPECT_EQ(240, cropped_height);
229
230 // Request 16:10 but QVGA has 15:11 pixel aspect ratio.
231 // Expect horizontal crop.
232 // This occurs on Logitech B910 on OSX 10.5/10.6/10.7 in gmail.
233 ComputeCrop(640, 400, // Crop size 16:10
234 320, 240, // Frame is 4:3
235 15, 11, // Pixel aspect ratio is wide
236 0,
237 &cropped_width, &cropped_height);
238 EXPECT_EQ(280, cropped_width);
239 EXPECT_EQ(240, cropped_height);
240
241 // Request 16:9 but VGA has 6:5 pixel aspect ratio. Expect vertical crop.
242 // This occurs on Logitech QuickCam Pro C9000 on OSX
243 ComputeCrop(640, 360, // Crop size 16:9
244 640, 480, // Frame is 4:3
245 6, 5, // Pixel aspect ratio is wide
246 0,
247 &cropped_width, &cropped_height);
248 EXPECT_EQ(640, cropped_width);
249 EXPECT_EQ(432, cropped_height);
250
251 // Request 16:10 but HD is 16:9. Expect horizontal crop.
252 // This occurs in settings and local preview with HD experiment.
253 ComputeCrop(1280, 800, // Crop size 16:10
254 1280, 720, // Frame is 4:3
255 1, 1, // Pixel aspect ratio is wide
256 0,
257 &cropped_width, &cropped_height);
258 EXPECT_EQ(1152, cropped_width);
259 EXPECT_EQ(720, cropped_height);
260
261 // Request 16:9 but HD has 3:4 pixel aspect ratio. Expect vertical crop.
262 // This occurs on Logitech B910 on OSX 10.5/10.6.7 but not OSX 10.6.8 or 10.7
263 ComputeCrop(1280, 720, // Crop size 16:9
264 1280, 720, // Frame is 4:3
265 3, 4, // Pixel aspect ratio is wide
266 0,
267 &cropped_width, &cropped_height);
268 EXPECT_EQ(1280, cropped_width);
269 EXPECT_EQ(540, cropped_height);
270
271 // Request 16:9 to 3:4 (portrait). Expect no cropping.
272 ComputeCrop(640, 360, // Crop size 16:9
273 640, 480, // Frame is 3:4 portrait
274 1, 1, // Normal 1:1 pixels
275 90,
276 &cropped_width, &cropped_height);
277 EXPECT_EQ(640, cropped_width);
278 EXPECT_EQ(480, cropped_height);
279
280 // Request 9:16 from VGA rotated (portrait). Expect crop.
281 ComputeCrop(360, 640, // Crop size 9:16
282 640, 480, // Frame is 3:4 portrait
283 1, 1, // Normal 1:1 pixels
284 90,
285 &cropped_width, &cropped_height);
286 EXPECT_EQ(640, cropped_width);
287 EXPECT_EQ(360, cropped_height);
288
289 // Cropped size 0x0. Expect no cropping.
290 // This is used when adding multiple capturers
291 ComputeCrop(0, 0, // Crop size 0x0
292 1024, 768, // Frame is 3:4 portrait
293 1, 1, // Normal 1:1 pixels
294 0,
295 &cropped_width, &cropped_height);
296 EXPECT_EQ(1024, cropped_width);
297 EXPECT_EQ(768, cropped_height);
298 }
299
TEST(VideoCommonTest,TestComputeScaleToSquarePixels)300 TEST(VideoCommonTest, TestComputeScaleToSquarePixels) {
301 int scaled_width, scaled_height;
302
303 // Pixel aspect ratio is 4:3. Logical aspect ratio is 16:9. Expect scale
304 // to square pixels with physical aspect ratio of 16:9.
305 ComputeScaleToSquarePixels(640, 480,
306 4, 3, // 4 x 3 pixel aspect ratio
307 &scaled_width, &scaled_height);
308 EXPECT_EQ(640, scaled_width);
309 EXPECT_EQ(360, scaled_height);
310
311 // Pixel aspect ratio is 3:8. Physical aspect ratio is 4:3. Expect scale
312 // to square pixels with logical aspect ratio of 1:2.
313 // Note that 640x1280 will be scaled down by video adapter to view request
314 // of 640*360 and will end up using 320x640.
315 ComputeScaleToSquarePixels(640, 480,
316 3, 8, // 4 x 3 pixel aspect ratio
317 &scaled_width, &scaled_height);
318 EXPECT_EQ(640, scaled_width);
319 EXPECT_EQ(1280, scaled_height);
320 }
321
322 } // namespace cricket
323