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source: webrtc/talk/media/base/videoframe.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 2011 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/videoframe.h"
29
30#include <cstring>
31
32#if !defined(DISABLE_YUV)
33#include "libyuv/compare.h"
34#include "libyuv/planar_functions.h"
35#include "libyuv/scale.h"
36#endif
37
38#include "talk/base/logging.h"
39#include "talk/media/base/videocommon.h"
40
41namespace cricket {
42
43// Round to 2 pixels because Chroma channels are half size.
44#define ROUNDTO2(v) (v & ~1)
45
46talk_base::StreamResult VideoFrame::Write(talk_base::StreamInterface* stream,
47                                          int* error) {
48  talk_base::StreamResult result = talk_base::SR_SUCCESS;
49  const uint8* src_y = GetYPlane();
50  const uint8* src_u = GetUPlane();
51  const uint8* src_v = GetVPlane();
52  if (!src_y || !src_u || !src_v) {
53    return result;  // Nothing to write.
54  }
55  const int32 y_pitch = GetYPitch();
56  const int32 u_pitch = GetUPitch();
57  const int32 v_pitch = GetVPitch();
58  const size_t width = GetWidth();
59  const size_t height = GetHeight();
60  const size_t half_width = (width + 1) >> 1;
61  const size_t half_height = (height + 1) >> 1;
62  // Write Y.
63  for (size_t row = 0; row < height; ++row) {
64    result = stream->Write(src_y + row * y_pitch, width, NULL, error);
65    if (result != talk_base::SR_SUCCESS) {
66      return result;
67    }
68  }
69  // Write U.
70  for (size_t row = 0; row < half_height; ++row) {
71    result = stream->Write(src_u + row * u_pitch, half_width, NULL, error);
72    if (result != talk_base::SR_SUCCESS) {
73      return result;
74    }
75  }
76  // Write V.
77  for (size_t row = 0; row < half_height; ++row) {
78    result = stream->Write(src_v + row * v_pitch, half_width, NULL, error);
79    if (result != talk_base::SR_SUCCESS) {
80      return result;
81    }
82  }
83  return result;
84}
85
86bool VideoFrame::CopyToPlanes(
87    uint8* dst_y, uint8* dst_u, uint8* dst_v,
88    int32 dst_pitch_y, int32 dst_pitch_u, int32 dst_pitch_v) const {
89#if !defined(DISABLE_YUV)
90  int32 src_width = static_cast<int>(GetWidth());
91  int32 src_height = static_cast<int>(GetHeight());
92  return libyuv::I420Copy(GetYPlane(), GetYPitch(),
93                          GetUPlane(), GetUPitch(),
94                          GetVPlane(), GetVPitch(),
95                          dst_y, dst_pitch_y,
96                          dst_u, dst_pitch_u,
97                          dst_v, dst_pitch_v,
98                          src_width, src_height) == 0;
99#else
100  int uv_size = GetUPitch() * GetChromaHeight();
101  memcpy(dst_y, GetYPlane(), GetWidth() * GetHeight());
102  memcpy(dst_u, GetUPlane(), uv_size);
103  memcpy(dst_v, GetVPlane(), uv_size);
104  return true;
105#endif
106}
107
108void VideoFrame::CopyToFrame(VideoFrame* dst) const {
109  if (!dst) {
110    LOG(LS_ERROR) << "NULL dst pointer.";
111    return;
112  }
113
114  CopyToPlanes(dst->GetYPlane(), dst->GetUPlane(), dst->GetVPlane(),
115               dst->GetYPitch(), dst->GetUPitch(), dst->GetVPitch());
116}
117
118// TODO(fbarchard): Handle odd width/height with rounding.
119void VideoFrame::StretchToPlanes(
120    uint8* dst_y, uint8* dst_u, uint8* dst_v,
121    int32 dst_pitch_y, int32 dst_pitch_u, int32 dst_pitch_v,
122    size_t width, size_t height, bool interpolate, bool vert_crop) const {
123  if (!GetYPlane() || !GetUPlane() || !GetVPlane()) {
124    LOG(LS_ERROR) << "NULL plane pointer.";
125    return;
126  }
127
128  size_t src_width = GetWidth();
129  size_t src_height = GetHeight();
130  if (width == src_width && height == src_height) {
131    CopyToPlanes(dst_y, dst_u, dst_v, dst_pitch_y, dst_pitch_u, dst_pitch_v);
132    return;
133  }
134  const uint8* src_y = GetYPlane();
135  const uint8* src_u = GetUPlane();
136  const uint8* src_v = GetVPlane();
137
138  if (vert_crop) {
139    // Adjust the input width:height ratio to be the same as the output ratio.
140    if (src_width * height > src_height * width) {
141      // Reduce the input width, but keep size/position aligned for YuvScaler
142      src_width = ROUNDTO2(src_height * width / height);
143      int32 iwidth_offset = ROUNDTO2((GetWidth() - src_width) / 2);
144      src_y += iwidth_offset;
145      src_u += iwidth_offset / 2;
146      src_v += iwidth_offset / 2;
147    } else if (src_width * height < src_height * width) {
148      // Reduce the input height.
149      src_height = src_width * height / width;
150      int32 iheight_offset = static_cast<int32>(
151          (GetHeight() - src_height) >> 2);
152      iheight_offset <<= 1;  // Ensure that iheight_offset is even.
153      src_y += iheight_offset * GetYPitch();
154      src_u += iheight_offset / 2 * GetUPitch();
155      src_v += iheight_offset / 2 * GetVPitch();
156    }
157  }
158
159  // TODO(fbarchard): Implement a simple scale for non-libyuv.
160#if !defined(DISABLE_YUV)
161  // Scale to the output I420 frame.
162  libyuv::Scale(src_y, src_u, src_v,
163                GetYPitch(), GetUPitch(), GetVPitch(),
164                static_cast<int>(src_width), static_cast<int>(src_height),
165                dst_y, dst_u, dst_v, dst_pitch_y, dst_pitch_u, dst_pitch_v,
166                static_cast<int>(width), static_cast<int>(height), interpolate);
167#endif
168}
169
170size_t VideoFrame::StretchToBuffer(size_t dst_width, size_t dst_height,
171                                   uint8* dst_buffer, size_t size,
172                                   bool interpolate, bool vert_crop) const {
173  if (!dst_buffer) {
174    LOG(LS_ERROR) << "NULL dst_buffer pointer.";
175    return 0;
176  }
177
178  size_t needed = SizeOf(dst_width, dst_height);
179  if (needed <= size) {
180    uint8* dst_y = dst_buffer;
181    uint8* dst_u = dst_y + dst_width * dst_height;
182    uint8* dst_v = dst_u + ((dst_width + 1) >> 1) * ((dst_height + 1) >> 1);
183    StretchToPlanes(dst_y, dst_u, dst_v,
184                    static_cast<int32>(dst_width),
185                    static_cast<int32>((dst_width + 1) >> 1),
186                    static_cast<int32>((dst_width + 1) >> 1),
187                    dst_width, dst_height, interpolate, vert_crop);
188  }
189  return needed;
190}
191
192void VideoFrame::StretchToFrame(VideoFrame* dst,
193                                bool interpolate, bool vert_crop) const {
194  if (!dst) {
195    LOG(LS_ERROR) << "NULL dst pointer.";
196    return;
197  }
198
199  StretchToPlanes(dst->GetYPlane(), dst->GetUPlane(), dst->GetVPlane(),
200                  dst->GetYPitch(), dst->GetUPitch(), dst->GetVPitch(),
201                  dst->GetWidth(), dst->GetHeight(),
202                  interpolate, vert_crop);
203  dst->SetElapsedTime(GetElapsedTime());
204  dst->SetTimeStamp(GetTimeStamp());
205}
206
207VideoFrame* VideoFrame::Stretch(size_t dst_width, size_t dst_height,
208                                bool interpolate, bool vert_crop) const {
209  VideoFrame* dest = CreateEmptyFrame(static_cast<int>(dst_width),
210                                      static_cast<int>(dst_height),
211                                      GetPixelWidth(), GetPixelHeight(),
212                                      GetElapsedTime(), GetTimeStamp());
213  if (dest) {
214    StretchToFrame(dest, interpolate, vert_crop);
215  }
216  return dest;
217}
218
219bool VideoFrame::SetToBlack() {
220#if !defined(DISABLE_YUV)
221  return libyuv::I420Rect(GetYPlane(), GetYPitch(),
222                          GetUPlane(), GetUPitch(),
223                          GetVPlane(), GetVPitch(),
224                          0, 0,
225                          static_cast<int>(GetWidth()),
226                          static_cast<int>(GetHeight()),
227                          16, 128, 128) == 0;
228#else
229  int uv_size = GetUPitch() * GetChromaHeight();
230  memset(GetYPlane(), 16, GetWidth() * GetHeight());
231  memset(GetUPlane(), 128, uv_size);
232  memset(GetVPlane(), 128, uv_size);
233  return true;
234#endif
235}
236
237static const size_t kMaxSampleSize = 1000000000u;
238// Returns whether a sample is valid
239bool VideoFrame::Validate(uint32 fourcc, int w, int h,
240                          const uint8 *sample, size_t sample_size) {
241  if (h < 0) {
242    h = -h;
243  }
244  // 16384 is maximum resolution for VP8 codec.
245  if (w < 1 || w > 16384 || h < 1 || h > 16384) {
246    LOG(LS_ERROR) << "Invalid dimensions: " << w << "x" << h;
247    return false;
248  }
249  uint32 format = CanonicalFourCC(fourcc);
250  int expected_bpp = 8;
251  switch (format) {
252    case FOURCC_I400:
253    case FOURCC_RGGB:
254    case FOURCC_BGGR:
255    case FOURCC_GRBG:
256    case FOURCC_GBRG:
257      expected_bpp = 8;
258      break;
259    case FOURCC_I420:
260    case FOURCC_I411:
261    case FOURCC_YU12:
262    case FOURCC_YV12:
263    case FOURCC_M420:
264    case FOURCC_Q420:
265    case FOURCC_NV21:
266    case FOURCC_NV12:
267      expected_bpp = 12;
268      break;
269    case FOURCC_I422:
270    case FOURCC_YV16:
271    case FOURCC_YUY2:
272    case FOURCC_UYVY:
273    case FOURCC_RGBP:
274    case FOURCC_RGBO:
275    case FOURCC_R444:
276      expected_bpp = 16;
277      break;
278    case FOURCC_I444:
279    case FOURCC_YV24:
280    case FOURCC_24BG:
281    case FOURCC_RAW:
282      expected_bpp = 24;
283      break;
284
285    case FOURCC_ABGR:
286    case FOURCC_BGRA:
287    case FOURCC_ARGB:
288      expected_bpp = 32;
289      break;
290
291    case FOURCC_MJPG:
292    case FOURCC_H264:
293      expected_bpp = 0;
294      break;
295    default:
296      expected_bpp = 8;  // Expect format is at least 8 bits per pixel.
297      break;
298  }
299  size_t expected_size = (w * expected_bpp + 7) / 8 * h;
300  // For compressed formats, expect 4 bits per 16 x 16 macro.  I420 would be
301  // 6 bits, but grey can be 4 bits.
302  if (expected_bpp == 0) {
303    expected_size = ((w + 15) / 16) * ((h + 15) / 16) * 4 / 8;
304  }
305  if (sample == NULL) {
306    LOG(LS_ERROR) << "NULL sample pointer."
307                  << " format: " << GetFourccName(format)
308                  << " bpp: " << expected_bpp
309                  << " size: " << w << "x" << h
310                  << " expected: " << expected_size
311                  << " " << sample_size;
312    return false;
313  }
314  if (sample_size < expected_size) {
315    LOG(LS_ERROR) << "Size field is too small."
316                  << " format: " << GetFourccName(format)
317                  << " bpp: " << expected_bpp
318                  << " size: " << w << "x" << h
319                  << " " << sample_size
320                  << " expected: " << expected_size
321                  << " sample[0..3]: " << static_cast<int>(sample[0])
322                  << ", " << static_cast<int>(sample[1])
323                  << ", " << static_cast<int>(sample[2])
324                  << ", " << static_cast<int>(sample[3]);
325    return false;
326  }
327  if (sample_size > kMaxSampleSize) {
328    LOG(LS_WARNING) << "Size field is invalid."
329                    << " format: " << GetFourccName(format)
330                    << " bpp: " << expected_bpp
331                    << " size: " << w << "x" << h
332                    << " " << sample_size
333                    << " expected: " << 2 * expected_size
334                    << " sample[0..3]: " << static_cast<int>(sample[0])
335                    << ", " << static_cast<int>(sample[1])
336                    << ", " << static_cast<int>(sample[2])
337                    << ", " << static_cast<int>(sample[3]);
338    return false;
339  }
340  // Show large size warning once every 100 frames.
341  static int large_warn100 = 0;
342  size_t large_expected_size = expected_size * 2;
343  if (expected_bpp >= 8 &&
344      (sample_size > large_expected_size || sample_size > kMaxSampleSize) &&
345      large_warn100 % 100 == 0) {
346    ++large_warn100;
347    LOG(LS_WARNING) << "Size field is too large."
348                    << " format: " << GetFourccName(format)
349                    << " bpp: " << expected_bpp
350                    << " size: " << w << "x" << h
351                    << " bytes: " << sample_size
352                    << " expected: " << large_expected_size
353                    << " sample[0..3]: " << static_cast<int>(sample[0])
354                    << ", " << static_cast<int>(sample[1])
355                    << ", " << static_cast<int>(sample[2])
356                    << ", " << static_cast<int>(sample[3]);
357  }
358  // Scan pages to ensure they are there and don't contain a single value and
359  // to generate an error.
360  if (!memcmp(sample + sample_size - 8, sample + sample_size - 4, 4) &&
361      !memcmp(sample, sample + 4, sample_size - 4)) {
362    LOG(LS_WARNING) << "Duplicate value for all pixels."
363                    << " format: " << GetFourccName(format)
364                    << " bpp: " << expected_bpp
365                    << " size: " << w << "x" << h
366                    << " bytes: " << sample_size
367                    << " expected: " << expected_size
368                    << " sample[0..3]: " << static_cast<int>(sample[0])
369                    << ", " << static_cast<int>(sample[1])
370                    << ", " << static_cast<int>(sample[2])
371                    << ", " << static_cast<int>(sample[3]);
372  }
373
374  static bool valid_once = true;
375  if (valid_once) {
376    valid_once = false;
377    LOG(LS_INFO) << "Validate frame passed."
378                 << " format: " << GetFourccName(format)
379                 << " bpp: " << expected_bpp
380                 << " size: " << w << "x" << h
381                 << " bytes: " << sample_size
382                 << " expected: " << expected_size
383                 << " sample[0..3]: " << static_cast<int>(sample[0])
384                 << ", " << static_cast<int>(sample[1])
385                 << ", " << static_cast<int>(sample[2])
386                 << ", " << static_cast<int>(sample[3]);
387  }
388  return true;
389}
390
391}  // namespace cricket
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