| /* Copyright (c) 2012 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 <code>PPP_VideoDecoder_Dev</code> interface. |
| */ |
| label Chrome { |
| M21 = 0.11 |
| }; |
| |
| /** |
| * PPP_VideoDecoder_Dev structure contains the function pointers that the |
| * plugin MUST implement to provide services needed by the video decoder |
| * implementation. |
| * |
| * See PPB_VideoDecoder_Dev for general usage tips. |
| */ |
| interface PPP_VideoDecoder_Dev { |
| /** |
| * Callback function to provide buffers for the decoded output pictures. If |
| * succeeds plugin must provide buffers through AssignPictureBuffers function |
| * to the API. If |req_num_of_bufs| matching exactly the specification |
| * given in the parameters cannot be allocated decoder should be destroyed. |
| * |
| * Decoding will not proceed until buffers have been provided. |
| * |
| * Parameters: |
| * |instance| the plugin instance to which the callback is responding. |
| * |decoder| the PPB_VideoDecoder_Dev resource. |
| * |req_num_of_bufs| tells how many buffers are needed by the decoder. |
| * |dimensions| tells the dimensions of the buffer to allocate. |
| * |texture_target| the type of texture used. Sample targets in use are |
| * TEXTURE_2D (most platforms) and TEXTURE_EXTERNAL_OES (on ARM). |
| */ |
| [version=0.11] |
| void ProvidePictureBuffers( |
| [in] PP_Instance instance, |
| [in] PP_Resource decoder, |
| [in] uint32_t req_num_of_bufs, |
| [in] PP_Size dimensions, |
| [in] uint32_t texture_target); |
| |
| /** |
| * Callback function for decoder to deliver unneeded picture buffers back to |
| * the plugin. |
| * |
| * Parameters: |
| * |instance| the plugin instance to which the callback is responding. |
| * |decoder| the PPB_VideoDecoder_Dev resource. |
| * |picture_buffer| points to the picture buffer that is no longer needed. |
| */ |
| void DismissPictureBuffer( |
| [in] PP_Instance instance, |
| [in] PP_Resource decoder, |
| [in] int32_t picture_buffer_id); |
| |
| /** |
| * Callback function for decoder to deliver decoded pictures ready to be |
| * displayed. Decoder expects the plugin to return the buffer back to the |
| * decoder through ReusePictureBuffer function in PPB Video Decoder API. |
| * |
| * Parameters: |
| * |instance| the plugin instance to which the callback is responding. |
| * |decoder| the PPB_VideoDecoder_Dev resource. |
| * |picture| is the picture that is ready. |
| */ |
| void PictureReady( |
| [in] PP_Instance instance, |
| [in] PP_Resource decoder, |
| [in] PP_Picture_Dev picture); |
| |
| /** |
| * Error handler callback for decoder to deliver information about detected |
| * errors to the plugin. |
| * |
| * Parameters: |
| * |instance| the plugin instance to which the callback is responding. |
| * |decoder| the PPB_VideoDecoder_Dev resource. |
| * |error| error is the enumeration specifying the error. |
| */ |
| void NotifyError( |
| [in] PP_Instance instance, |
| [in] PP_Resource decoder, |
| [in] PP_VideoDecodeError_Dev error); |
| }; |