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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include <libdrm/drm_fourcc.h> | |
| 6 #include <linux/videodev2.h> | |
| 7 #include <string.h> | |
| 8 | |
| 9 #include "base/numerics/safe_conversions.h" | |
| 10 #include "build/build_config.h" | |
| 11 #include "content/common/gpu/media/generic_v4l2_device.h" | |
| 12 #if defined(ARCH_CPU_ARMEL) | |
| 13 #include "content/common/gpu/media/tegra_v4l2_device.h" | |
| 14 #endif | |
| 15 | |
| 16 namespace content { | |
| 17 | |
| 18 V4L2Device::V4L2Device(Type type) : type_(type) { | |
| 19 } | |
| 20 | |
| 21 V4L2Device::~V4L2Device() { | |
| 22 } | |
| 23 | |
| 24 // static | |
| 25 scoped_refptr<V4L2Device> V4L2Device::Create(Type type) { | |
| 26 DVLOG(3) << __PRETTY_FUNCTION__; | |
| 27 | |
| 28 scoped_refptr<GenericV4L2Device> generic_device(new GenericV4L2Device(type)); | |
| 29 if (generic_device->Initialize()) | |
| 30 return generic_device; | |
| 31 | |
| 32 #if defined(ARCH_CPU_ARMEL) | |
| 33 scoped_refptr<TegraV4L2Device> tegra_device(new TegraV4L2Device(type)); | |
| 34 if (tegra_device->Initialize()) | |
| 35 return tegra_device; | |
| 36 #endif | |
| 37 | |
| 38 DVLOG(1) << "Failed to create V4L2Device"; | |
| 39 return scoped_refptr<V4L2Device>(); | |
| 40 } | |
| 41 | |
| 42 // static | |
| 43 media::VideoPixelFormat V4L2Device::V4L2PixFmtToVideoPixelFormat( | |
| 44 uint32_t pix_fmt) { | |
| 45 switch (pix_fmt) { | |
| 46 case V4L2_PIX_FMT_NV12: | |
| 47 case V4L2_PIX_FMT_NV12M: | |
| 48 return media::PIXEL_FORMAT_NV12; | |
| 49 | |
| 50 case V4L2_PIX_FMT_MT21: | |
| 51 return media::PIXEL_FORMAT_MT21; | |
| 52 | |
| 53 case V4L2_PIX_FMT_YUV420: | |
| 54 case V4L2_PIX_FMT_YUV420M: | |
| 55 return media::PIXEL_FORMAT_I420; | |
| 56 | |
| 57 case V4L2_PIX_FMT_RGB32: | |
| 58 return media::PIXEL_FORMAT_ARGB; | |
| 59 | |
| 60 default: | |
| 61 LOG(FATAL) << "Add more cases as needed"; | |
| 62 return media::PIXEL_FORMAT_UNKNOWN; | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 // static | |
| 67 uint32_t V4L2Device::VideoPixelFormatToV4L2PixFmt( | |
| 68 media::VideoPixelFormat format) { | |
| 69 switch (format) { | |
| 70 case media::PIXEL_FORMAT_NV12: | |
| 71 return V4L2_PIX_FMT_NV12M; | |
| 72 | |
| 73 case media::PIXEL_FORMAT_MT21: | |
| 74 return V4L2_PIX_FMT_MT21; | |
| 75 | |
| 76 case media::PIXEL_FORMAT_I420: | |
| 77 return V4L2_PIX_FMT_YUV420M; | |
| 78 | |
| 79 default: | |
| 80 LOG(FATAL) << "Add more cases as needed"; | |
| 81 return 0; | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 // static | |
| 86 uint32_t V4L2Device::VideoCodecProfileToV4L2PixFmt( | |
| 87 media::VideoCodecProfile profile, | |
| 88 bool slice_based) { | |
| 89 if (profile >= media::H264PROFILE_MIN && | |
| 90 profile <= media::H264PROFILE_MAX) { | |
| 91 if (slice_based) | |
| 92 return V4L2_PIX_FMT_H264_SLICE; | |
| 93 else | |
| 94 return V4L2_PIX_FMT_H264; | |
| 95 } else if (profile >= media::VP8PROFILE_MIN && | |
| 96 profile <= media::VP8PROFILE_MAX) { | |
| 97 if (slice_based) | |
| 98 return V4L2_PIX_FMT_VP8_FRAME; | |
| 99 else | |
| 100 return V4L2_PIX_FMT_VP8; | |
| 101 } else if (profile >= media::VP9PROFILE_MIN && | |
| 102 profile <= media::VP9PROFILE_MAX) { | |
| 103 return V4L2_PIX_FMT_VP9; | |
| 104 } else { | |
| 105 LOG(FATAL) << "Add more cases as needed"; | |
| 106 return 0; | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 // static | |
| 111 uint32_t V4L2Device::V4L2PixFmtToDrmFormat(uint32_t format) { | |
| 112 switch (format) { | |
| 113 case V4L2_PIX_FMT_NV12: | |
| 114 case V4L2_PIX_FMT_NV12M: | |
| 115 return DRM_FORMAT_NV12; | |
| 116 | |
| 117 case V4L2_PIX_FMT_YUV420: | |
| 118 case V4L2_PIX_FMT_YUV420M: | |
| 119 return DRM_FORMAT_YUV420; | |
| 120 | |
| 121 case V4L2_PIX_FMT_RGB32: | |
| 122 return DRM_FORMAT_ARGB8888; | |
| 123 | |
| 124 default: | |
| 125 DVLOG(1) << "Add more cases as needed"; | |
| 126 return 0; | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 // static | |
| 131 gfx::Size V4L2Device::CodedSizeFromV4L2Format(struct v4l2_format format) { | |
| 132 gfx::Size coded_size; | |
| 133 gfx::Size visible_size; | |
| 134 media::VideoPixelFormat frame_format = media::PIXEL_FORMAT_UNKNOWN; | |
| 135 size_t bytesperline = 0; | |
| 136 // Total bytes in the frame. | |
| 137 size_t sizeimage = 0; | |
| 138 | |
| 139 if (V4L2_TYPE_IS_MULTIPLANAR(format.type)) { | |
| 140 DCHECK_GT(format.fmt.pix_mp.num_planes, 0); | |
| 141 bytesperline = | |
| 142 base::checked_cast<int>(format.fmt.pix_mp.plane_fmt[0].bytesperline); | |
| 143 for (size_t i = 0; i < format.fmt.pix_mp.num_planes; ++i) { | |
| 144 sizeimage += | |
| 145 base::checked_cast<int>(format.fmt.pix_mp.plane_fmt[i].sizeimage); | |
| 146 } | |
| 147 visible_size.SetSize(base::checked_cast<int>(format.fmt.pix_mp.width), | |
| 148 base::checked_cast<int>(format.fmt.pix_mp.height)); | |
| 149 frame_format = | |
| 150 V4L2Device::V4L2PixFmtToVideoPixelFormat(format.fmt.pix_mp.pixelformat); | |
| 151 } else { | |
| 152 bytesperline = base::checked_cast<int>(format.fmt.pix.bytesperline); | |
| 153 sizeimage = base::checked_cast<int>(format.fmt.pix.sizeimage); | |
| 154 visible_size.SetSize(base::checked_cast<int>(format.fmt.pix.width), | |
| 155 base::checked_cast<int>(format.fmt.pix.height)); | |
| 156 frame_format = | |
| 157 V4L2Device::V4L2PixFmtToVideoPixelFormat(format.fmt.pix.pixelformat); | |
| 158 } | |
| 159 | |
| 160 // V4L2 does not provide per-plane bytesperline (bpl) when different | |
| 161 // components are sharing one physical plane buffer. In this case, it only | |
| 162 // provides bpl for the first component in the plane. So we can't depend on it | |
| 163 // for calculating height, because bpl may vary within one physical plane | |
| 164 // buffer. For example, YUV420 contains 3 components in one physical plane, | |
| 165 // with Y at 8 bits per pixel, and Cb/Cr at 4 bits per pixel per component, | |
| 166 // but we only get 8 pits per pixel from bytesperline in physical plane 0. | |
| 167 // So we need to get total frame bpp from elsewhere to calculate coded height. | |
| 168 | |
| 169 // We need bits per pixel for one component only to calculate | |
| 170 // coded_width from bytesperline. | |
| 171 int plane_horiz_bits_per_pixel = | |
| 172 media::VideoFrame::PlaneHorizontalBitsPerPixel(frame_format, 0); | |
| 173 | |
| 174 // Adding up bpp for each component will give us total bpp for all components. | |
| 175 int total_bpp = 0; | |
| 176 for (size_t i = 0; i < media::VideoFrame::NumPlanes(frame_format); ++i) | |
| 177 total_bpp += media::VideoFrame::PlaneBitsPerPixel(frame_format, i); | |
| 178 | |
| 179 if (sizeimage == 0 || bytesperline == 0 || plane_horiz_bits_per_pixel == 0 || | |
| 180 total_bpp == 0 || (bytesperline * 8) % plane_horiz_bits_per_pixel != 0) { | |
| 181 LOG(ERROR) << "Invalid format provided"; | |
| 182 return coded_size; | |
| 183 } | |
| 184 | |
| 185 // Coded width can be calculated by taking the first component's bytesperline, | |
| 186 // which in V4L2 always applies to the first component in physical plane | |
| 187 // buffer. | |
| 188 int coded_width = bytesperline * 8 / plane_horiz_bits_per_pixel; | |
| 189 // Sizeimage is coded_width * coded_height * total_bpp. | |
| 190 int coded_height = sizeimage * 8 / coded_width / total_bpp; | |
| 191 | |
| 192 coded_size.SetSize(coded_width, coded_height); | |
| 193 // It's possible the driver gave us a slightly larger sizeimage than what | |
| 194 // would be calculated from coded size. This is technically not allowed, but | |
| 195 // some drivers (Exynos) like to have some additional alignment that is not a | |
| 196 // multiple of bytesperline. The best thing we can do is to compensate by | |
| 197 // aligning to next full row. | |
| 198 if (sizeimage > media::VideoFrame::AllocationSize(frame_format, coded_size)) | |
| 199 coded_size.SetSize(coded_width, coded_height + 1); | |
| 200 DVLOG(3) << "coded_size=" << coded_size.ToString(); | |
| 201 | |
| 202 // Sanity checks. Calculated coded size has to contain given visible size | |
| 203 // and fulfill buffer byte size requirements. | |
| 204 DCHECK(gfx::Rect(coded_size).Contains(gfx::Rect(visible_size))); | |
| 205 DCHECK_LE(sizeimage, | |
| 206 media::VideoFrame::AllocationSize(frame_format, coded_size)); | |
| 207 | |
| 208 return coded_size; | |
| 209 } | |
| 210 | |
| 211 void V4L2Device::GetSupportedResolution(uint32_t pixelformat, | |
| 212 gfx::Size* min_resolution, | |
| 213 gfx::Size* max_resolution) { | |
| 214 max_resolution->SetSize(0, 0); | |
| 215 min_resolution->SetSize(0, 0); | |
| 216 v4l2_frmsizeenum frame_size; | |
| 217 memset(&frame_size, 0, sizeof(frame_size)); | |
| 218 frame_size.pixel_format = pixelformat; | |
| 219 for (; Ioctl(VIDIOC_ENUM_FRAMESIZES, &frame_size) == 0; ++frame_size.index) { | |
| 220 if (frame_size.type == V4L2_FRMSIZE_TYPE_DISCRETE) { | |
| 221 if (frame_size.discrete.width >= | |
| 222 base::checked_cast<uint32_t>(max_resolution->width()) && | |
| 223 frame_size.discrete.height >= | |
| 224 base::checked_cast<uint32_t>(max_resolution->height())) { | |
| 225 max_resolution->SetSize(frame_size.discrete.width, | |
| 226 frame_size.discrete.height); | |
| 227 } | |
| 228 if (min_resolution->IsEmpty() || | |
| 229 (frame_size.discrete.width <= | |
| 230 base::checked_cast<uint32_t>(min_resolution->width()) && | |
| 231 frame_size.discrete.height <= | |
| 232 base::checked_cast<uint32_t>(min_resolution->height()))) { | |
| 233 min_resolution->SetSize(frame_size.discrete.width, | |
| 234 frame_size.discrete.height); | |
| 235 } | |
| 236 } else if (frame_size.type == V4L2_FRMSIZE_TYPE_STEPWISE || | |
| 237 frame_size.type == V4L2_FRMSIZE_TYPE_CONTINUOUS) { | |
| 238 max_resolution->SetSize(frame_size.stepwise.max_width, | |
| 239 frame_size.stepwise.max_height); | |
| 240 min_resolution->SetSize(frame_size.stepwise.min_width, | |
| 241 frame_size.stepwise.min_height); | |
| 242 break; | |
| 243 } | |
| 244 } | |
| 245 if (max_resolution->IsEmpty()) { | |
| 246 max_resolution->SetSize(1920, 1088); | |
| 247 LOG(ERROR) << "GetSupportedResolution failed to get maximum resolution for " | |
| 248 << "fourcc " << std::hex << pixelformat | |
| 249 << ", fall back to " << max_resolution->ToString(); | |
| 250 } | |
| 251 if (min_resolution->IsEmpty()) { | |
| 252 min_resolution->SetSize(16, 16); | |
| 253 LOG(ERROR) << "GetSupportedResolution failed to get minimum resolution for " | |
| 254 << "fourcc " << std::hex << pixelformat | |
| 255 << ", fall back to " << min_resolution->ToString(); | |
| 256 } | |
| 257 } | |
| 258 | |
| 259 media::VideoDecodeAccelerator::SupportedProfiles | |
| 260 V4L2Device::GetSupportedDecodeProfiles(const size_t num_formats, | |
| 261 const uint32_t pixelformats[]) { | |
| 262 DCHECK_EQ(type_, kDecoder); | |
| 263 media::VideoDecodeAccelerator::SupportedProfiles profiles; | |
| 264 media::VideoDecodeAccelerator::SupportedProfile profile; | |
| 265 v4l2_fmtdesc fmtdesc; | |
| 266 memset(&fmtdesc, 0, sizeof(fmtdesc)); | |
| 267 fmtdesc.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; | |
| 268 | |
| 269 for (; Ioctl(VIDIOC_ENUM_FMT, &fmtdesc) == 0; ++fmtdesc.index) { | |
| 270 if (std::find(pixelformats, pixelformats + num_formats, | |
| 271 fmtdesc.pixelformat) == pixelformats + num_formats) | |
| 272 continue; | |
| 273 int min_profile, max_profile; | |
| 274 switch (fmtdesc.pixelformat) { | |
| 275 case V4L2_PIX_FMT_H264: | |
| 276 case V4L2_PIX_FMT_H264_SLICE: | |
| 277 min_profile = media::H264PROFILE_MIN; | |
| 278 max_profile = media::H264PROFILE_MAX; | |
| 279 break; | |
| 280 case V4L2_PIX_FMT_VP8: | |
| 281 case V4L2_PIX_FMT_VP8_FRAME: | |
| 282 min_profile = media::VP8PROFILE_MIN; | |
| 283 max_profile = media::VP8PROFILE_MAX; | |
| 284 break; | |
| 285 case V4L2_PIX_FMT_VP9: | |
| 286 min_profile = media::VP9PROFILE_MIN; | |
| 287 max_profile = media::VP9PROFILE_MAX; | |
| 288 break; | |
| 289 default: | |
| 290 NOTREACHED() << "Unhandled pixelformat " << std::hex | |
| 291 << fmtdesc.pixelformat; | |
| 292 return profiles; | |
| 293 } | |
| 294 GetSupportedResolution(fmtdesc.pixelformat, &profile.min_resolution, | |
| 295 &profile.max_resolution); | |
| 296 for (int media_profile = min_profile; media_profile <= max_profile; | |
| 297 ++media_profile) { | |
| 298 profile.profile = static_cast<media::VideoCodecProfile>(media_profile); | |
| 299 profiles.push_back(profile); | |
| 300 } | |
| 301 } | |
| 302 return profiles; | |
| 303 } | |
| 304 | |
| 305 bool V4L2Device::SupportsDecodeProfileForV4L2PixelFormats( | |
| 306 media::VideoCodecProfile profile, | |
| 307 const size_t num_formats, | |
| 308 const uint32_t pixelformats[]) { | |
| 309 // Get all supported profiles by this device, taking into account only fourccs | |
| 310 // in pixelformats. | |
| 311 const auto supported_profiles = | |
| 312 GetSupportedDecodeProfiles(num_formats, pixelformats); | |
| 313 | |
| 314 // Try to find requested profile among the returned supported_profiles. | |
| 315 const auto iter = std::find_if( | |
| 316 supported_profiles.begin(), supported_profiles.end(), | |
| 317 [profile](const media::VideoDecodeAccelerator::SupportedProfile& p) { | |
| 318 return profile == p.profile; | |
| 319 }); | |
| 320 | |
| 321 return iter != supported_profiles.end(); | |
| 322 } | |
| 323 | |
| 324 } // namespace content | |
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Chromium Code Reviews
Issue 1939683002:
Test X11 header pollution (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master