netwerk/base/public/nsIStreamingProtocolController.idl

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
     2 /* vim: set sw=4 ts=4 et tw=80 : */
     3 /* This Source Code Form is subject to the terms of the Mozilla Public
     4  * License, v. 2.0. If a copy of the MPL was not distributed with this
     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     6 interface nsIURI;
     8 #include "nsISupports.idl"
    10 %{C++
    11 #define MEDIASTREAM_FRAMETYPE_NORMAL          0x00000001
    12 #define MEDIASTREAM_FRAMETYPE_DISCONTINUITY   0x00000002
    13 %}
    15 /**
    16  * Metadata of the media stream.
    17  */
    18 [uuid(294adb30-856c-11e2-9e96-0800200c9a66)]
    19 interface nsIStreamingProtocolMetaData : nsISupports
    20 {
    21     /**
    22      * Frame type.
    23      */
    24     attribute uint32_t frameType;
    26     /**
    27      * The total tracks for the given media stream session.
    28      */
    29     attribute uint32_t totalTracks;
    31     /**
    32      * The mime type of the track.
    33      */
    34     attribute ACString mimeType;
    36     /**
    37      * The width of the resolution.
    38      */
    39     attribute unsigned long width;
    41     /**
    42      * The height of the resolution.
    43      */
    44     attribute unsigned long height;
    46     /**
    47      * The duration of the media stream.
    48      */
    49     attribute unsigned long long duration;
    51     /**
    52      * The sample rate of the media stream.
    53      */
    54     attribute unsigned long sampleRate;
    56     /**
    57      * The timestamp indicates the stream absolute position
    58      * relative to the beginning of the presentation.
    59      */
    60     attribute unsigned long long timeStamp;
    62     /**
    63      * The total number of audio channels in the media stream.
    64      */
    65     attribute unsigned long channelCount;
    67     /**
    68      * The AAC audio codec specific data.
    69      */
    70     attribute ACString esdsData;
    72     /**
    73      * The AVCC format extradata of H.264 stream.
    74      */
    75     attribute ACString avccData;
    76 };
    78 /**
    79  * nsIStreamingProtocolListener
    80  */
    81 [scriptable, uuid(c4f6b660-892e-11e2-9e96-0800200c9a66)]
    82 interface nsIStreamingProtocolListener : nsISupports
    83 {
    84     /**
    85      * Called when the data may be read without blocking the calling thread.
    86      * @param index The track number of the media stream.
    87      * @param data Raw data of the media stream on given track number.
    88      * @param length The length of the raw data.
    89      * @param offset The offset in the data stream from the start of the media
    90      *               presentation in bytes.
    91      * @param meta The meta data of the frame.
    92      */
    93     void onMediaDataAvailable(in uint8_t index,
    94                               in ACString data,
    95                               in uint32_t length,
    96                               in uint32_t offset,
    97                               in nsIStreamingProtocolMetaData meta);
    99     /**
   100      * Called when the meta data for a given session is available.
   101      * @param index The track number of the media stream.
   102      * @param meta The meta data of the media stream.
   103      */
   104     void onConnected(in uint8_t index, in nsIStreamingProtocolMetaData meta);
   106     /**
   107      * Called when the Rtsp session is closed.
   108      * @param index Track number of the media stream.
   109      * @param reason The reason of disconnection.
   110      */
   111     void onDisconnected(in uint8_t index, in nsresult reason);
   112 };
   114 /**
   115  * Media stream controller API: control and retrieve meta data from media stream.
   116  */
   117 [uuid(a9bdd4b0-8559-11e2-9e96-0800200c9a66)]
   118 interface nsIStreamingProtocolController : nsISupports
   119 {
   120     /**
   121      * Preprare the URI before we can start the connection.
   122      * @param aUri The URI of the media stream.
   123      */
   124     void init(in nsIURI aUri);
   126     /**
   127      * Asynchronously open this controller.  Data is fed to the specified
   128      * media stream listener as it becomes available. If asyncOpen returns
   129      * successfully, the controller is responsible for keeping itself alive
   130      * until it has called onStopRequest on aListener.
   131      *
   132      * @param aListener The nsIStreamingProtocolListener implementation
   133      */
   134     void asyncOpen(in nsIStreamingProtocolListener aListener);
   136     /*
   137      * Get the metadata of a track.
   138      * @param index Index of a track.
   139      * @return A nsIStreamingProtocolMetaData.
   140      */
   141     nsIStreamingProtocolMetaData getTrackMetaData(in octet index);
   143     /*
   144      * Tell the streaming server to start sending media data.
   145      */
   146     void play();
   148     /*
   149      * Tell the streaming server to pause sending media data.
   150      */
   151     void pause();
   153     /*
   154      * Tell the streaming server to resume the suspended media stream.
   155      */
   156     void resume();
   158     /*
   159      * Tell the streaming server to suspend the media stream.
   160      */
   161     void suspend();
   163     /*
   164      * Tell the streaming server to send media data in specific time.
   165      * @param seekTimeUs Start time of the media stream in microseconds.
   166      */
   167     void seek(in unsigned long long seekTimeUs);
   169     /*
   170      * Tell the streaming server to stop the
   171      * media stream and close the connection.
   172      */
   173     void stop();
   175     /**
   176      * Total number of audio/video tracks.
   177      */
   178     readonly attribute octet totalTracks;
   179 };

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