blob: 0c8018eb427c80c59f6dd6f970315a9a11fafefa [file] [log] [blame]
// Copyright 2018 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.
module media.mojom;
import "media/mojo/interfaces/media_types.mojom";
// Encode errors (see media/video/jpeg_encode_accelerator.h).
enum EncodeStatus {
// GPU process interface exposed to the browser for encoding JPEG images.
interface JpegEncodeAccelerator {
// Initializes the JPEG encoder. Should be called once per encoder
// construction and before using EncodeWithFD(). This call returns true if
// initialization is successful.
Initialize() => (bool success);
// Encodes the given buffer that contains one I420 image.
// |input_fd| and |output_fd| are file descriptors of shared memory.
// The image is encoded from memory of |input_fd|
// with size |input_buffer_size|. The output buffer is associated with
// |buffer_id| and the dimension of I420 image is |coded_size_width| and
// |coded_size_height|.
// |exif_fd| is the shared memory buffer, with |exif_buffer_size| as size,
// containing Exif data which will be put onto APP1 segment in the output
// JPEG image.
// Encoded JPEG image will be put onto memory associated with |output_fd|
// with allocated size |output_buffer_size|.
// Returns |buffer_id| and |error| in a callback to notify the
// encode status. |buffer_id| is the id of |output_buffer| and |status| is the
// status code. |encoded_buffer_size| is the actual size of the encoded JPEG.
EncodeWithFD(int32 buffer_id, handle input_fd, uint32 input_buffer_size,
int32 coded_size_width, int32 coded_size_height,
handle exif_fd, uint32 exif_buffer_size,
handle output_fd, uint32 output_buffer_size)
=> (int32 buffer_id, uint32 encoded_buffer_size, EncodeStatus status);