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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include <linux/videodev2.h> | 5 #include <linux/videodev2.h> |
| 6 | 6 |
| 7 #include "base/numerics/safe_conversions.h" | 7 #include "base/numerics/safe_conversions.h" |
| 8 #include "content/common/gpu/media/exynos_v4l2_video_device.h" | 8 #include "content/common/gpu/media/exynos_v4l2_video_device.h" |
| 9 #include "content/common/gpu/media/tegra_v4l2_video_device.h" | 9 #include "content/common/gpu/media/tegra_v4l2_video_device.h" |
| 10 | 10 |
| 11 namespace content { | 11 namespace content { |
| 12 | 12 |
| 13 V4L2Device::~V4L2Device() {} | 13 V4L2Device::~V4L2Device() {} |
| 14 | 14 |
| 15 // static | 15 // static |
| 16 scoped_ptr<V4L2Device> V4L2Device::Create(Type type) { | 16 scoped_ptr<V4L2Device> V4L2Device::Create(Type type) { |
| 17 DVLOG(3) << __PRETTY_FUNCTION__; | 17 DVLOG(3) << __PRETTY_FUNCTION__; |
| 18 | 18 |
| 19 scoped_ptr<ExynosV4L2Device> exynos_device(new ExynosV4L2Device(type)); | 19 scoped_ptr<ExynosV4L2Device> exynos_device(new ExynosV4L2Device(type)); |
| 20 if (exynos_device->Initialize()) | 20 if (exynos_device->Initialize()) |
| 21 return exynos_device.PassAs<V4L2Device>(); | 21 return exynos_device.PassAs<V4L2Device>(); |
| 22 | 22 |
| 23 scoped_ptr<TegraV4L2Device> tegra_device(new TegraV4L2Device(type)); | 23 scoped_ptr<TegraV4L2Device> tegra_device(new TegraV4L2Device(type)); |
| 24 if (tegra_device->Initialize()) | 24 if (tegra_device->Initialize()) |
| 25 return tegra_device.PassAs<V4L2Device>(); | 25 return tegra_device.PassAs<V4L2Device>(); |
| 26 | 26 |
| 27 DLOG(ERROR) << "Failed to create V4L2Device"; | 27 LOG(ERROR) << "Failed to create V4L2Device"; |
| 28 return scoped_ptr<V4L2Device>(); | 28 return scoped_ptr<V4L2Device>(); |
| 29 } | 29 } |
| 30 | 30 |
| 31 // static | 31 // static |
| 32 media::VideoFrame::Format V4L2Device::V4L2PixFmtToVideoFrameFormat( | 32 media::VideoFrame::Format V4L2Device::V4L2PixFmtToVideoFrameFormat( |
| 33 uint32 pix_fmt) { | 33 uint32 pix_fmt) { |
| 34 switch (pix_fmt) { | 34 switch (pix_fmt) { |
| 35 case V4L2_PIX_FMT_NV12: | 35 case V4L2_PIX_FMT_NV12: |
| 36 case V4L2_PIX_FMT_NV12M: | 36 case V4L2_PIX_FMT_NV12M: |
| 37 return media::VideoFrame::NV12; | 37 return media::VideoFrame::NV12; |
| (...skipping 68 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 106 | 106 |
| 107 int horiz_bpp = | 107 int horiz_bpp = |
| 108 media::VideoFrame::PlaneHorizontalBitsPerPixel(frame_format, 0); | 108 media::VideoFrame::PlaneHorizontalBitsPerPixel(frame_format, 0); |
| 109 DVLOG(3) << __func__ << ": bytesperline=" << bytesperline | 109 DVLOG(3) << __func__ << ": bytesperline=" << bytesperline |
| 110 << ", sizeimage=" << sizeimage | 110 << ", sizeimage=" << sizeimage |
| 111 << ", visible_size=" << visible_size.ToString() << ", frame_format=" | 111 << ", visible_size=" << visible_size.ToString() << ", frame_format=" |
| 112 << media::VideoFrame::FormatToString(frame_format) | 112 << media::VideoFrame::FormatToString(frame_format) |
| 113 << ", horiz_bpp=" << horiz_bpp; | 113 << ", horiz_bpp=" << horiz_bpp; |
| 114 if (sizeimage == 0 || bytesperline == 0 || horiz_bpp == 0 || | 114 if (sizeimage == 0 || bytesperline == 0 || horiz_bpp == 0 || |
| 115 (bytesperline * 8) % horiz_bpp != 0) { | 115 (bytesperline * 8) % horiz_bpp != 0) { |
| 116 DLOG(ERROR) << "Invalid format provided"; | 116 LOG(ERROR) << "Invalid format provided"; |
| 117 return coded_size; | 117 return coded_size; |
| 118 } | 118 } |
| 119 | 119 |
| 120 // Round up sizeimage to full bytesperlines. sizeimage does not have to be | 120 // Round up sizeimage to full bytesperlines. sizeimage does not have to be |
| 121 // a multiple of bytesperline, as in V4L2 terms it's just a byte size of | 121 // a multiple of bytesperline, as in V4L2 terms it's just a byte size of |
| 122 // the buffer, unrelated to its payload. | 122 // the buffer, unrelated to its payload. |
| 123 sizeimage = ((sizeimage + bytesperline - 1) / bytesperline) * bytesperline; | 123 sizeimage = ((sizeimage + bytesperline - 1) / bytesperline) * bytesperline; |
| 124 | 124 |
| 125 coded_size.SetSize(bytesperline * 8 / horiz_bpp, sizeimage / bytesperline); | 125 coded_size.SetSize(bytesperline * 8 / horiz_bpp, sizeimage / bytesperline); |
| 126 DVLOG(3) << "coded_size=" << coded_size.ToString(); | 126 DVLOG(3) << "coded_size=" << coded_size.ToString(); |
| 127 | 127 |
| 128 // Sanity checks. Calculated coded size has to contain given visible size | 128 // Sanity checks. Calculated coded size has to contain given visible size |
| 129 // and fulfill buffer byte size requirements for each plane. | 129 // and fulfill buffer byte size requirements for each plane. |
| 130 DCHECK(gfx::Rect(coded_size).Contains(gfx::Rect(visible_size))); | 130 DCHECK(gfx::Rect(coded_size).Contains(gfx::Rect(visible_size))); |
| 131 | 131 |
| 132 if (V4L2_TYPE_IS_MULTIPLANAR(format.type)) { | 132 if (V4L2_TYPE_IS_MULTIPLANAR(format.type)) { |
| 133 for (size_t i = 0; i < format.fmt.pix_mp.num_planes; ++i) { | 133 for (size_t i = 0; i < format.fmt.pix_mp.num_planes; ++i) { |
| 134 DCHECK_EQ(format.fmt.pix_mp.plane_fmt[i].bytesperline, | 134 DCHECK_EQ(format.fmt.pix_mp.plane_fmt[i].bytesperline, |
| 135 base::checked_cast<__u32>(media::VideoFrame::RowBytes( | 135 base::checked_cast<__u32>(media::VideoFrame::RowBytes( |
| 136 i, frame_format, coded_size.width()))); | 136 i, frame_format, coded_size.width()))); |
| 137 } | 137 } |
| 138 } | 138 } |
| 139 | 139 |
| 140 return coded_size; | 140 return coded_size; |
| 141 } | 141 } |
| 142 | 142 |
| 143 } // namespace content | 143 } // namespace content |
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