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Side by Side Diff: ppapi/c/private/ppb_video_destination_private.h

Issue 14192054: Rename PPAPI Video Stream APIs. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Straighten out naming confusion, improve comments. Created 7 years, 8 months ago
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1 /* Copyright (c) 2013 The Chromium Authors. All rights reserved. 1 /* Copyright (c) 2013 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 5
6 /* From ppb_video_writer.idl modified Fri Apr 5 15:46:57 2013. */ 6 /* From private/ppb_video_destination_private.idl,
7 * modified Thu Apr 25 11:51:30 2013.
8 */
7 9
8 #ifndef PPAPI_C_PPB_VIDEO_WRITER_H_ 10 #ifndef PPAPI_C_PRIVATE_PPB_VIDEO_DESTINATION_PRIVATE_H_
9 #define PPAPI_C_PPB_VIDEO_WRITER_H_ 11 #define PPAPI_C_PRIVATE_PPB_VIDEO_DESTINATION_PRIVATE_H_
10 12
11 #include "ppapi/c/pp_bool.h" 13 #include "ppapi/c/pp_bool.h"
12 #include "ppapi/c/pp_completion_callback.h" 14 #include "ppapi/c/pp_completion_callback.h"
13 #include "ppapi/c/pp_instance.h" 15 #include "ppapi/c/pp_instance.h"
14 #include "ppapi/c/pp_macros.h" 16 #include "ppapi/c/pp_macros.h"
15 #include "ppapi/c/pp_resource.h" 17 #include "ppapi/c/pp_resource.h"
16 #include "ppapi/c/pp_stdint.h" 18 #include "ppapi/c/pp_stdint.h"
17 #include "ppapi/c/pp_time.h" 19 #include "ppapi/c/pp_time.h"
18 #include "ppapi/c/pp_var.h" 20 #include "ppapi/c/pp_var.h"
19 #include "ppapi/c/pp_video_frame.h" 21 #include "ppapi/c/private/pp_video_frame_private.h"
20 22
21 #define PPB_VIDEOWRITER_INTERFACE_0_1 "PPB_VideoWriter;0.1" 23 #define PPB_VIDEODESTINATION_PRIVATE_INTERFACE_0_1 \
22 #define PPB_VIDEOWRITER_INTERFACE PPB_VIDEOWRITER_INTERFACE_0_1 24 "PPB_VideoDestination_Private;0.1"
25 #define PPB_VIDEODESTINATION_PRIVATE_INTERFACE \
26 PPB_VIDEODESTINATION_PRIVATE_INTERFACE_0_1
23 27
24 /** 28 /**
25 * @file 29 * @file
26 * This file defines the <code>PPB_VideoWriter</code> struct for a video writer 30 * This file defines the <code>PPB_VideoDestination_Private</code> interface
27 * resource. 31 * for a video destination resource, which sends video frames to a MediaStream
32 * video track in the browser.
28 */ 33 */
29 34
30 35
31 /** 36 /**
32 * @addtogroup Interfaces 37 * @addtogroup Interfaces
33 * @{ 38 * @{
34 */ 39 */
35 /** 40 /**
36 * The <code>PPB_VideoWriter</code> interface contains pointers to several 41 * The <code>PPB_VideoDestination_Private</code> interface contains pointers to
37 * functions for creating video writer resources and using them to generate 42 * several functions for creating video destination resources and using them to
38 * streams of video frames. 43 * send video frames to a MediaStream video track in the browser.
39 */ 44 */
40 struct PPB_VideoWriter_0_1 { 45 struct PPB_VideoDestination_Private_0_1 {
41 /** 46 /**
42 * Creates a video writer resource. 47 * Creates a video destination resource.
43 * 48 *
44 * @param[in] instance A <code>PP_Instance</code> identifying one instance 49 * @param[in] instance A <code>PP_Instance</code> identifying an instance of
45 * of a module. 50 * a module.
46 * 51 *
47 * @return A <code>PP_Resource</code> with a nonzero ID on success or zero on 52 * @return A <code>PP_Resource</code> with a nonzero ID on success or zero on
48 * failure. Failure means the instance was invalid. 53 * failure. Failure means the instance was invalid.
49 */ 54 */
50 PP_Resource (*Create)(PP_Instance instance); 55 PP_Resource (*Create)(PP_Instance instance);
51 /** 56 /**
52 * Determines if a given resource is a video writer. 57 * Determines if a resource is a video destination resource.
53 * 58 *
54 * @param[in] resource A <code>PP_Resource</code> corresponding to a resource. 59 * @param[in] resource The <code>PP_Resource</code> to test.
55 * 60 *
56 * @return A <code>PP_Bool</code> with <code>PP_TRUE</code> if the given 61 * @return A <code>PP_Bool</code> with <code>PP_TRUE</code> if the given
57 * resource is a video writer or <code>PP_FALSE</code> otherwise. 62 * resource is a video destination resource or <code>PP_FALSE</code>
63 * otherwise.
58 */ 64 */
59 PP_Bool (*IsVideoWriter)(PP_Resource resource); 65 PP_Bool (*IsVideoDestination)(PP_Resource resource);
60 /** 66 /**
61 * Opens a video stream with the given id for writing. 67 * Opens a video destination for putting frames.
62 * 68 *
63 * @param[in] writer A <code>PP_Resource</code> corresponding to a video 69 * @param[in] destination A <code>PP_Resource</code> corresponding to a video
64 * writer resource. 70 * destination resource.
65 * @param[out] stream_id A <code>PP_Var</code> holding a string uniquely 71 * @param[in] stream_url A <code>PP_Var</code> string holding a URL
66 * identifying the stream. This string is generated by the host. 72 * identifying a MediaStream.
67 * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon 73 * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon
68 * completion of Open(). 74 * completion of Open().
69 * 75 *
70 * @return An int32_t containing an error code from <code>pp_errors.h</code>. 76 * @return An int32_t containing a result code from <code>pp_errors.h</code>.
71 * Returns PP_ERROR_BADRESOURCE if writer isn't a valid video writer. 77 * Returns PP_ERROR_BADRESOURCE if destination isn't a valid video
72 * Returns PP_ERROR_INPROGRESS if the writer has already opened a stream. 78 * destination.
79 * Returns PP_ERROR_INPROGRESS if destination is already open.
80 * Returns PP_ERROR_FAILED if the MediaStream doesn't exist or if there is
81 * some other browser error.
73 */ 82 */
74 int32_t (*Open)(PP_Resource writer, 83 int32_t (*Open)(PP_Resource destination,
75 struct PP_Var* stream_id, 84 struct PP_Var stream_url,
76 struct PP_CompletionCallback callback); 85 struct PP_CompletionCallback callback);
77 /** 86 /**
78 * Puts a frame of video to the writer's open stream. 87 * Puts a frame to the video destination.
79 * 88 *
80 * After this call, you should take care to release your references to the 89 * After this call, you should take care to release your references to the
81 * image embedded in the video frame. If you paint to the image after 90 * image embedded in the video frame. If you paint to the image after
82 * PutFrame(), there is the possibility of artifacts because the browser may 91 * PutFame(), there is the possibility of artifacts because the browser may
83 * still be copying the frame to the stream. 92 * still be copying the frame to the stream.
84 * 93 *
85 * @param[in] writer A <code>PP_Resource</code> corresponding to a video 94 * @param[in] destination A <code>PP_Resource</code> corresponding to a video
86 * writer resource. 95 * destination resource.
87 * @param[in] frame A <code>PP_VideoFrame</code> holding a video frame to 96 * @param[in] frame A <code>PP_VideoFrame_Private</code> holding the video
88 * write to the open stream. 97 * frame to send to the destination.
89 * 98 *
90 * @return An int32_t containing an error code from <code>pp_errors.h</code>. 99 * @return An int32_t containing a result code from <code>pp_errors.h</code>.
91 * Returns PP_ERROR_BADRESOURCE if writer isn't a valid video writer. 100 * Returns PP_ERROR_BADRESOURCE if destination isn't a valid video
92 * Returns PP_ERROR_FAILED if the writer has not opened a stream, if the video 101 * destination.
93 * frame has an invalid image data resource, or if some other error occurs. 102 * Returns PP_ERROR_FAILED if destination is not open, if the video frame has
103 * an invalid image data resource, or if some other browser error occurs.
94 */ 104 */
95 int32_t (*PutFrame)(PP_Resource writer, const struct PP_VideoFrame* frame); 105 int32_t (*PutFrame)(PP_Resource destination,
106 const struct PP_VideoFrame_Private* frame);
96 /** 107 /**
97 * Closes the writer's video stream. 108 * Closes the video destination.
98 * 109 *
99 * @param[in] writer A <code>PP_Resource</code> corresponding to a video 110 * @param[in] destination A <code>PP_Resource</code> corresponding to a video
100 * writer resource. 111 * destination.
101 */ 112 */
102 void (*Close)(PP_Resource writer); 113 void (*Close)(PP_Resource destination);
103 }; 114 };
104 115
105 typedef struct PPB_VideoWriter_0_1 PPB_VideoWriter; 116 typedef struct PPB_VideoDestination_Private_0_1 PPB_VideoDestination_Private;
106 /** 117 /**
107 * @} 118 * @}
108 */ 119 */
109 120
110 #endif /* PPAPI_C_PPB_VIDEO_WRITER_H_ */ 121 #endif /* PPAPI_C_PRIVATE_PPB_VIDEO_DESTINATION_PRIVATE_H_ */
111 122
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