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source: webrtc/talk/media/base/videocommon_unittest.cc @ 0:4bda6873e34c

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Last change on this file since 0:4bda6873e34c was 0:4bda6873e34c, checked in by Michael Prittie <mprittie@…>, 6 years ago

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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/base/gunit.h"
29#include "talk/media/base/videocommon.h"
30
31namespace cricket {
32
33TEST(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
56TEST(VideoCommonTest, TestVideoFormatFps) {
57  EXPECT_EQ(VideoFormat::kMinimumInterval, VideoFormat::FpsToInterval(0));
58  EXPECT_EQ(talk_base::kNumNanosecsPerSec / 20, VideoFormat::FpsToInterval(20));
59  EXPECT_EQ(20, VideoFormat::IntervalToFps(talk_base::kNumNanosecsPerSec / 20));
60}
61
62// Test IsSize0x0
63TEST(VideoCommonTest, TestVideoFormatIsSize0x0) {
64  VideoFormat format;
65  EXPECT_TRUE(format.IsSize0x0());
66  format.width = 320;
67  EXPECT_FALSE(format.IsSize0x0());
68}
69
70// Test ToString: print fourcc when it is printable.
71TEST(VideoCommonTest, TestVideoFormatToString) {
72  VideoFormat format;
73  EXPECT_EQ("0x0x10000", format.ToString());
74
75  format.fourcc = FOURCC_I420;
76  format.width = 640;
77  format.height = 480;
78  format.interval = VideoFormat::FpsToInterval(20);
79  EXPECT_EQ("I420 640x480x20", format.ToString());
80
81  format.fourcc = FOURCC_ANY;
82  format.width = 640;
83  format.height = 480;
84  format.interval = VideoFormat::FpsToInterval(20);
85  EXPECT_EQ("640x480x20", format.ToString());
86}
87
88// Test comparison.
89TEST(VideoCommonTest, TestVideoFormatCompare) {
90  VideoFormat format(640, 480, VideoFormat::FpsToInterval(20), FOURCC_I420);
91  VideoFormat format2;
92  EXPECT_NE(format, format2);
93
94  // Same pixelrate, different fourcc.
95  format2 = format;
96  format2.fourcc = FOURCC_YUY2;
97  EXPECT_NE(format, format2);
98  EXPECT_FALSE(format.IsPixelRateLess(format2) ||
99               format2.IsPixelRateLess(format2));
100
101  format2 = format;
102  format2.interval /= 2;
103  EXPECT_TRUE(format.IsPixelRateLess(format2));
104
105  format2 = format;
106  format2.width *= 2;
107  EXPECT_TRUE(format.IsPixelRateLess(format2));
108}
109
110TEST(VideoCommonTest, TestComputeScaleWithLowFps) {
111  int scaled_width, scaled_height;
112
113  // Request small enough. Expect no change.
114  ComputeScale(2560, 1600, 5, &scaled_width, &scaled_height);
115  EXPECT_EQ(2560, scaled_width);
116  EXPECT_EQ(1600, scaled_height);
117
118  // Request too many pixels. Expect 1/2 size.
119  ComputeScale(4096, 2560, 5, &scaled_width, &scaled_height);
120  EXPECT_EQ(2048, scaled_width);
121  EXPECT_EQ(1280, scaled_height);
122
123  // Request too many pixels and too wide and tall. Expect 1/4 size.
124  ComputeScale(16000, 10000, 5, &scaled_width, &scaled_height);
125  EXPECT_EQ(2000, scaled_width);
126  EXPECT_EQ(1250, scaled_height);
127
128  // Request too wide. (two 30 inch monitors). Expect 1/2 size.
129  ComputeScale(5120, 1600, 5, &scaled_width, &scaled_height);
130  EXPECT_EQ(2560, scaled_width);
131  EXPECT_EQ(800, scaled_height);
132
133  // Request too wide but not too many pixels. Expect 1/2 size.
134  ComputeScale(8192, 1024, 5, &scaled_width, &scaled_height);
135  EXPECT_EQ(4096, scaled_width);
136  EXPECT_EQ(512, scaled_height);
137
138  // Request too tall. Expect 1/4 size.
139  ComputeScale(1024, 8192, 5, &scaled_width, &scaled_height);
140  EXPECT_EQ(256, scaled_width);
141  EXPECT_EQ(2048, scaled_height);
142}
143
144// Same as TestComputeScale but with 15 fps instead of 5 fps.
145TEST(VideoCommonTest, TestComputeScaleWithHighFps) {
146  int scaled_width, scaled_height;
147
148  // Request small enough but high fps. Expect 1/2 size.
149  ComputeScale(2560, 1600, 15, &scaled_width, &scaled_height);
150  EXPECT_EQ(1280, scaled_width);
151  EXPECT_EQ(800, scaled_height);
152
153  // Request too many pixels. Expect 1/2 size.
154  ComputeScale(4096, 2560, 15, &scaled_width, &scaled_height);
155  EXPECT_EQ(2048, scaled_width);
156  EXPECT_EQ(1280, scaled_height);
157
158  // Request too many pixels and too wide and tall. Expect 1/16 size.
159  ComputeScale(64000, 40000, 15, &scaled_width, &scaled_height);
160  EXPECT_EQ(4000, scaled_width);
161  EXPECT_EQ(2500, scaled_height);
162
163  // Request too wide. (two 30 inch monitors). Expect 1/2 size.
164  ComputeScale(5120, 1600, 15, &scaled_width, &scaled_height);
165  EXPECT_EQ(2560, scaled_width);
166  EXPECT_EQ(800, scaled_height);
167
168  // Request too wide but not too many pixels. Expect 1/2 size.
169  ComputeScale(8192, 1024, 15, &scaled_width, &scaled_height);
170  EXPECT_EQ(4096, scaled_width);
171  EXPECT_EQ(512, scaled_height);
172
173  // Request too tall. Expect 1/4 size.
174  ComputeScale(1024, 8192, 15, &scaled_width, &scaled_height);
175  EXPECT_EQ(256, scaled_width);
176  EXPECT_EQ(2048, scaled_height);
177}
178
179TEST(VideoCommonTest, TestComputeCrop) {
180  int cropped_width, cropped_height;
181
182  // Request 16:9 to 16:9.  Expect no cropping.
183  ComputeCrop(1280, 720,  // Crop size 16:9
184              640, 360,  // Frame is 4:3
185              1, 1,  // Normal 1:1 pixels
186              0,
187              &cropped_width, &cropped_height);
188  EXPECT_EQ(640, cropped_width);
189  EXPECT_EQ(360, cropped_height);
190
191  // Request 4:3 to 16:9.  Expect vertical.
192  ComputeCrop(640, 360,  // Crop size 16:9
193              640, 480,  // Frame is 4:3
194              1, 1,  // Normal 1:1 pixels
195              0,
196              &cropped_width, &cropped_height);
197  EXPECT_EQ(640, cropped_width);
198  EXPECT_EQ(360, cropped_height);
199
200  // Request 16:9 to 4:3.  Expect horizontal crop.
201  ComputeCrop(640, 480,  // Crop size 4:3
202              640, 360,  // Frame is 16:9
203              1, 1,  // Normal 1:1 pixels
204              0,
205              &cropped_width, &cropped_height);
206  EXPECT_EQ(480, cropped_width);
207  EXPECT_EQ(360, cropped_height);
208
209  // Request 16:9 but VGA has 3:8 pixel aspect ratio. Expect no crop.
210  // This occurs on HP4110 on OSX 10.5/10.6/10.7
211  ComputeCrop(640, 360,  // Crop size 16:9
212              640, 480,  // Frame is 4:3
213              3, 8,  // Pixel aspect ratio is tall
214              0,
215              &cropped_width, &cropped_height);
216  EXPECT_EQ(640, cropped_width);
217  EXPECT_EQ(480, cropped_height);
218
219  // Request 16:9 but QVGA has 15:11 pixel aspect ratio. Expect horizontal crop.
220  // This occurs on Logitech B910 on OSX 10.5/10.6/10.7 in Hangouts.
221  ComputeCrop(640, 360,  // Crop size 16:9
222              320, 240,  // Frame is 4:3
223              15, 11,  // Pixel aspect ratio is wide
224              0,
225              &cropped_width, &cropped_height);
226  EXPECT_EQ(312, cropped_width);
227  EXPECT_EQ(240, cropped_height);
228
229  // Request 16:10 but QVGA has 15:11 pixel aspect ratio.
230  // Expect horizontal crop.
231  // This occurs on Logitech B910 on OSX 10.5/10.6/10.7 in gmail.
232  ComputeCrop(640, 400,  // Crop size 16:10
233              320, 240,  // Frame is 4:3
234              15, 11,  // Pixel aspect ratio is wide
235              0,
236              &cropped_width, &cropped_height);
237  EXPECT_EQ(280, cropped_width);
238  EXPECT_EQ(240, cropped_height);
239
240  // Request 16:9 but VGA has 6:5 pixel aspect ratio. Expect vertical crop.
241  // This occurs on Logitech QuickCam Pro C9000 on OSX
242  ComputeCrop(640, 360,  // Crop size 16:9
243              640, 480,  // Frame is 4:3
244              6, 5,  // Pixel aspect ratio is wide
245              0,
246              &cropped_width, &cropped_height);
247  EXPECT_EQ(640, cropped_width);
248  EXPECT_EQ(432, cropped_height);
249
250  // Request 16:10 but HD is 16:9. Expect horizontal crop.
251  // This occurs in settings and local preview with HD experiment.
252  ComputeCrop(1280, 800,  // Crop size 16:10
253              1280, 720,  // Frame is 4:3
254              1, 1,  // Pixel aspect ratio is wide
255              0,
256              &cropped_width, &cropped_height);
257  EXPECT_EQ(1152, cropped_width);
258  EXPECT_EQ(720, cropped_height);
259
260  // Request 16:9 but HD has 3:4 pixel aspect ratio. Expect vertical crop.
261  // This occurs on Logitech B910 on OSX 10.5/10.6.7 but not OSX 10.6.8 or 10.7
262  ComputeCrop(1280, 720,  // Crop size 16:9
263              1280, 720,  // Frame is 4:3
264              3, 4,  // Pixel aspect ratio is wide
265              0,
266              &cropped_width, &cropped_height);
267  EXPECT_EQ(1280, cropped_width);
268  EXPECT_EQ(540, cropped_height);
269
270  // Request 16:9 to 3:4 (portrait).  Expect no cropping.
271  ComputeCrop(640, 360,  // Crop size 16:9
272              640, 480,  // Frame is 3:4 portrait
273              1, 1,  // Normal 1:1 pixels
274              90,
275              &cropped_width, &cropped_height);
276  EXPECT_EQ(640, cropped_width);
277  EXPECT_EQ(480, cropped_height);
278
279  // Request 9:16 from VGA rotated (portrait).  Expect crop.
280  ComputeCrop(360, 640,  // Crop size 9:16
281              640, 480,  // Frame is 3:4 portrait
282              1, 1,  // Normal 1:1 pixels
283              90,
284              &cropped_width, &cropped_height);
285  EXPECT_EQ(640, cropped_width);
286  EXPECT_EQ(360, cropped_height);
287
288  // Cropped size 0x0.  Expect no cropping.
289  // This is used when adding multiple capturers
290  ComputeCrop(0, 0,  // Crop size 0x0
291              1024, 768,  // Frame is 3:4 portrait
292              1, 1,  // Normal 1:1 pixels
293              0,
294              &cropped_width, &cropped_height);
295  EXPECT_EQ(1024, cropped_width);
296  EXPECT_EQ(768, cropped_height);
297}
298
299TEST(VideoCommonTest, TestComputeScaleToSquarePixels) {
300  int scaled_width, scaled_height;
301
302  // Pixel aspect ratio is 4:3.  Logical aspect ratio is 16:9.  Expect scale
303  // to square pixels with physical aspect ratio of 16:9.
304  ComputeScaleToSquarePixels(640, 480,
305                             4, 3,  // 4 x 3 pixel aspect ratio
306                             &scaled_width, &scaled_height);
307  EXPECT_EQ(640, scaled_width);
308  EXPECT_EQ(360, scaled_height);
309
310  // Pixel aspect ratio is 3:8.  Physical aspect ratio is 4:3.  Expect scale
311  // to square pixels with logical aspect ratio of 1:2.
312  // Note that 640x1280 will be scaled down by video adapter to view request
313  // of 640*360 and will end up using 320x640.
314  ComputeScaleToSquarePixels(640, 480,
315                             3, 8,  // 4 x 3 pixel aspect ratio
316                             &scaled_width, &scaled_height);
317  EXPECT_EQ(640, scaled_width);
318  EXPECT_EQ(1280, scaled_height);
319}
320
321}  // namespace cricket
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