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Side by Side Diff: ppapi/c/dev/ppb_video_decoder_dev.h

Issue 7021020: Clean up video frame sizes, types in Video Decode API (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: responses to CR Created 9 years, 5 months ago
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1 /* Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 /* Copyright (c) 2011 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 #ifndef PPAPI_C_DEV_PPB_VIDEO_DECODER_DEV_H_ 5 #ifndef PPAPI_C_DEV_PPB_VIDEO_DECODER_DEV_H_
6 #define PPAPI_C_DEV_PPB_VIDEO_DECODER_DEV_H_ 6 #define PPAPI_C_DEV_PPB_VIDEO_DECODER_DEV_H_
7 7
8 #include "ppapi/c/dev/pp_video_dev.h" 8 #include "ppapi/c/dev/pp_video_dev.h"
9 #include "ppapi/c/pp_completion_callback.h" 9 #include "ppapi/c/pp_completion_callback.h"
10 #include "ppapi/c/pp_var.h" 10 #include "ppapi/c/pp_var.h"
11 11
12 #define PPB_VIDEODECODER_DEV_INTERFACE_0_12 "PPB_VideoDecoder(Dev);0.12" 12 #define PPB_VIDEODECODER_DEV_INTERFACE_0_13 "PPB_VideoDecoder(Dev);0.13"
13 #define PPB_VIDEODECODER_DEV_INTERFACE PPB_VIDEODECODER_DEV_INTERFACE_0_12 13 #define PPB_VIDEODECODER_DEV_INTERFACE PPB_VIDEODECODER_DEV_INTERFACE_0_13
14 14
15 // Video decoder interface. 15 // Video decoder interface.
16 // 16 //
17 // Typical usage: 17 // Typical usage:
18 // - Use Create() to get a new PPB_VideoDecoder_Dev resource. 18 // - Use Create() to get a new PPB_VideoDecoder_Dev resource.
19 // - Call Initialize() to create the underlying resources in the GPU process and 19 // - Call Initialize() to create the underlying resources in the GPU process and
20 // configure the decoder there. 20 // configure the decoder there.
21 // - Call Decode() to decode some video data. 21 // - Call Decode() to decode some video data.
22 // - Receive ProvidePictureBuffers callback 22 // - Receive ProvidePictureBuffers callback
23 // - Supply the decoder with textures using AssignGLESBuffers. 23 // - Supply the decoder with textures using AssignPictureBuffers.
24 // - Receive PictureReady callbacks 24 // - Receive PictureReady callbacks
25 // - Hand the textures back to the decoder using ReusePictureBuffer. 25 // - Hand the textures back to the decoder using ReusePictureBuffer.
26 // - To signal EOS to the decoder: call Flush() and wait for NotifyFlushDone 26 // - To signal EOS to the decoder: call Flush() and wait for NotifyFlushDone
27 // callback. 27 // callback.
28 // - To reset the decoder (e.g. to implement Seek): call Reset() and wait for 28 // - To reset the decoder (e.g. to implement Seek): call Reset() and wait for
29 // NotifyResetDone callback. 29 // NotifyResetDone callback.
30 // - To tear down the decoder call Destroy(). 30 // - To tear down the decoder call Destroy().
31 // 31 //
32 // See PPP_VideoDecoder_Dev for the notifications the decoder may send the 32 // See PPP_VideoDecoder_Dev for the notifications the decoder may send the
33 // plugin. 33 // plugin.
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83 // 83 //
84 // This function should be called when the plugin has its 84 // This function should be called when the plugin has its
85 // ProvidePictureBuffers method called. The decoder will stall until it has 85 // ProvidePictureBuffers method called. The decoder will stall until it has
86 // received all the buffers it's asked for. 86 // received all the buffers it's asked for.
87 // 87 //
88 // Parameters: 88 // Parameters:
89 // |video_decoder| is the previously created handle to the decoder resource. 89 // |video_decoder| is the previously created handle to the decoder resource.
90 // |no_of_buffers| how many buffers are behind picture buffer pointer. 90 // |no_of_buffers| how many buffers are behind picture buffer pointer.
91 // |buffers| contains the reference to the picture buffer that was 91 // |buffers| contains the reference to the picture buffer that was
92 // allocated. 92 // allocated.
93 void (*AssignGLESBuffers)(PP_Resource video_decoder, uint32_t no_of_buffers, 93 void (*AssignPictureBuffers)(
94 const struct PP_GLESBuffer_Dev* buffers); 94 PP_Resource video_decoder, uint32_t no_of_buffers,
95 const struct PP_PictureBuffer_Dev* buffers);
95 96
96 // Tells the decoder to reuse the given picture buffer. Typical use of this 97 // Tells the decoder to reuse the given picture buffer. Typical use of this
97 // function is to call from PictureReady callback to recycle picture buffer 98 // function is to call from PictureReady callback to recycle picture buffer
98 // back to the decoder after blitting the image so that decoder can use the 99 // back to the decoder after blitting the image so that decoder can use the
99 // image for output again. 100 // image for output again.
100 // 101 //
101 // Parameters: 102 // Parameters:
102 // |video_decoder| is the previously created handle to the decoder resource. 103 // |video_decoder| is the previously created handle to the decoder resource.
103 // |picture_buffer_id| contains the id of the picture buffer that was 104 // |picture_buffer_id| contains the id of the picture buffer that was
104 // processed. 105 // processed.
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136 // may be freed asynchronously, after this method returns no more callbacks 137 // may be freed asynchronously, after this method returns no more callbacks
137 // will be made on the client. Any resources held by the client at that point 138 // will be made on the client. Any resources held by the client at that point
138 // may be freed. 139 // may be freed.
139 // 140 //
140 // Parameters: 141 // Parameters:
141 // |video_decoder| is the previously created handle to the decoder resource. 142 // |video_decoder| is the previously created handle to the decoder resource.
142 void (*Destroy)(PP_Resource video_decoder); 143 void (*Destroy)(PP_Resource video_decoder);
143 }; 144 };
144 145
145 #endif /* PPAPI_C_DEV_PPB_VIDEO_DECODER_DEV_H_ */ 146 #endif /* PPAPI_C_DEV_PPB_VIDEO_DECODER_DEV_H_ */
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