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Unified Diff: content/common/gpu/media/v4l2_device.h

Issue 1882373004: Migrate content/common/gpu/media code to media/gpu (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Squash and rebase Created 4 years, 8 months ago
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Index: content/common/gpu/media/v4l2_device.h
diff --git a/content/common/gpu/media/v4l2_device.h b/content/common/gpu/media/v4l2_device.h
deleted file mode 100644
index 10905f6ad899db5d7df013e8d9c39642ecd2251b..0000000000000000000000000000000000000000
--- a/content/common/gpu/media/v4l2_device.h
+++ /dev/null
@@ -1,159 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-//
-// This file defines the V4L2Device interface which is used by the
-// V4L2DecodeAccelerator class to delegate/pass the device specific
-// handling of any of the functionalities.
-
-#ifndef CONTENT_COMMON_GPU_MEDIA_V4L2_DEVICE_H_
-#define CONTENT_COMMON_GPU_MEDIA_V4L2_DEVICE_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <linux/videodev2.h>
-
-#include "base/files/scoped_file.h"
-#include "base/memory/ref_counted.h"
-#include "content/common/content_export.h"
-#include "media/base/video_decoder_config.h"
-#include "media/base/video_frame.h"
-#include "media/video/video_decode_accelerator.h"
-#include "ui/gfx/geometry/size.h"
-#include "ui/gl/gl_bindings.h"
-
-// TODO(posciak): remove this once V4L2 headers are updated.
-#define V4L2_PIX_FMT_VP9 v4l2_fourcc('V', 'P', '9', '0')
-#define V4L2_PIX_FMT_H264_SLICE v4l2_fourcc('S', '2', '6', '4')
-#define V4L2_PIX_FMT_VP8_FRAME v4l2_fourcc('V', 'P', '8', 'F')
-#define V4L2_PIX_FMT_MT21 v4l2_fourcc('M', 'T', '2', '1')
-
-namespace content {
-
-class CONTENT_EXPORT V4L2Device
- : public base::RefCountedThreadSafe<V4L2Device> {
- public:
- // Utility format conversion functions
- static media::VideoPixelFormat V4L2PixFmtToVideoPixelFormat(uint32_t format);
- static uint32_t VideoPixelFormatToV4L2PixFmt(media::VideoPixelFormat format);
- static uint32_t VideoCodecProfileToV4L2PixFmt(
- media::VideoCodecProfile profile,
- bool slice_based);
- static uint32_t V4L2PixFmtToDrmFormat(uint32_t format);
- // Convert format requirements requested by a V4L2 device to gfx::Size.
- static gfx::Size CodedSizeFromV4L2Format(struct v4l2_format format);
-
- enum Type {
- kDecoder,
- kEncoder,
- kImageProcessor,
- kJpegDecoder,
- };
-
- // Creates and initializes an appropriate V4L2Device of |type| for the
- // current platform and returns a scoped_refptr<V4L2Device> on success, or
- // NULL.
- static scoped_refptr<V4L2Device> Create(Type type);
-
- // Parameters and return value are the same as for the standard ioctl() system
- // call.
- virtual int Ioctl(int request, void* arg) = 0;
-
- // This method sleeps until either:
- // - SetDevicePollInterrupt() is called (on another thread),
- // - |poll_device| is true, and there is new data to be read from the device,
- // or an event from the device has arrived; in the latter case
- // |*event_pending| will be set to true.
- // Returns false on error, true otherwise.
- // This method should be called from a separate thread.
- virtual bool Poll(bool poll_device, bool* event_pending) = 0;
-
- // These methods are used to interrupt the thread sleeping on Poll() and force
- // it to return regardless of device state, which is usually when the client
- // is no longer interested in what happens with the device (on cleanup,
- // client state change, etc.). When SetDevicePollInterrupt() is called, Poll()
- // will return immediately, and any subsequent calls to it will also do so
- // until ClearDevicePollInterrupt() is called.
- virtual bool SetDevicePollInterrupt() = 0;
- virtual bool ClearDevicePollInterrupt() = 0;
-
- // Wrappers for standard mmap/munmap system calls.
- virtual void* Mmap(void* addr,
- unsigned int len,
- int prot,
- int flags,
- unsigned int offset) = 0;
- virtual void Munmap(void* addr, unsigned int len) = 0;
-
- // Initializes the V4L2Device to operate as a device of |type|.
- // Returns true on success.
- virtual bool Initialize() = 0;
-
- // Return a vector of dmabuf file descriptors, exported for V4L2 buffer with
- // |index|, assuming the buffer contains |num_planes| V4L2 planes and is of
- // |type|. Return an empty vector on failure.
- // The caller is responsible for closing the file descriptors after use.
- virtual std::vector<base::ScopedFD> GetDmabufsForV4L2Buffer(
- int index,
- size_t num_planes,
- enum v4l2_buf_type type) = 0;
-
- // Return true if the given V4L2 pixfmt can be used in CreateEGLImage()
- // for the current platform.
- virtual bool CanCreateEGLImageFrom(uint32_t v4l2_pixfmt) = 0;
-
- // Create an EGLImage from provided |dmabuf_fds| and bind |texture_id| to it.
- // Some implementations may also require the V4L2 |buffer_index| of the buffer
- // for which |dmabuf_fds| have been exported.
- // The caller may choose to close the file descriptors after this method
- // returns, and may expect the buffers to remain valid for the lifetime of
- // the created EGLImage.
- // Return EGL_NO_IMAGE_KHR on failure.
- virtual EGLImageKHR CreateEGLImage(
- EGLDisplay egl_display,
- EGLContext egl_context,
- GLuint texture_id,
- const gfx::Size& size,
- unsigned int buffer_index,
- uint32_t v4l2_pixfmt,
- const std::vector<base::ScopedFD>& dmabuf_fds) = 0;
-
- // Destroys the EGLImageKHR.
- virtual EGLBoolean DestroyEGLImage(EGLDisplay egl_display,
- EGLImageKHR egl_image) = 0;
-
- // Returns the supported texture target for the V4L2Device.
- virtual GLenum GetTextureTarget() = 0;
-
- // Returns the preferred V4L2 input format or 0 if don't care.
- virtual uint32_t PreferredInputFormat() = 0;
-
- // Get minimum and maximum resolution for fourcc |pixelformat| and store to
- // |min_resolution| and |max_resolution|.
- void GetSupportedResolution(uint32_t pixelformat, gfx::Size* min_resolution,
- gfx::Size* max_resolution);
-
- // Return supported profiles for decoder, including only profiles for given
- // fourcc |pixelformats|.
- media::VideoDecodeAccelerator::SupportedProfiles GetSupportedDecodeProfiles(
- const size_t num_formats, const uint32_t pixelformats[]);
-
- // Return true if the device supports |profile|, taking into account only
- // fourccs from the given array of |pixelformats| of size |num_formats|.
- bool SupportsDecodeProfileForV4L2PixelFormats(
- media::VideoCodecProfile profile,
- const size_t num_formats,
- const uint32_t pixelformats[]);
-
- protected:
- friend class base::RefCountedThreadSafe<V4L2Device>;
- explicit V4L2Device(Type type);
- virtual ~V4L2Device();
-
- const Type type_;
-};
-
-} // namespace content
-
-#endif // CONTENT_COMMON_GPU_MEDIA_V4L2_DEVICE_H_

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