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◆ VIEW_CLASS
◆ COLOR_CLASS
◆ IMAGE_CLASS
◆ AgoraRtcMediaPlayerCustomSourceOnReadCallback
| typedef int(^ AgoraRtcMediaPlayerCustomSourceOnReadCallback) (id< AgoraRtcMediaPlayerProtocol > _Nonnull playerKit, unsigned char *_Nullable buffer, int bufferSize) |
Occurs when the SDK reads the media resource data.
When you call the openWithMediaSource: method to open a media resource, the SDK triggers this callback and request you to pass in the buffer of the media resource data.
- Parameters
-
| playerKit | Media player protocol. See AgoraRtcMediaPlayerProtocol. |
| buffer | An input parameter. Data buffer (bytes). Write the bufferSize data reported by the SDK into this parameter. |
| bufferSize | The length of the data buffer (bytes). |
- Returns
- If the data is read successfully, pass in the length of the data (bytes) you actually read in the return value.
- If reading the data fails, pass in 0 in the return value.
◆ AgoraRtcMediaPlayerCustomSourceOnSeekCallback
| typedef long long(^ AgoraRtcMediaPlayerCustomSourceOnSeekCallback) (id< AgoraRtcMediaPlayerProtocol > _Nonnull playerKit, long long offset, int whence) |
Occurs when the SDK seeks the media resource data.
When you call the openWithMediaSource: or open:startPos: method to open a custom media resource, the SDK triggers this callback to request the specified location in the media resource.
- Parameters
-
| playerKit | Media player protocol. See AgoraRtcMediaPlayerProtocol. |
| offset | An input parameter. The offset of the target position relative to the starting point, in bytes. The value can be positive or negative. |
| whence | An input parameter. The starting point. You can set it as one of the following values:
- 0: The starting point is the head of the data, and the actual data offset after seeking is
offset.
- 1: The starting point is the current position, and the actual data offset after seeking is the current position plus
offset.
- 2: The starting point is the end of the data, and the actual data offset after seeking is the whole data length plus
offset.
- 65536: Do not perform position seeking, return the file size. Agora recommends that you use this parameter value when playing pure audio files such as MP3 and WAV.
|
- Returns
- When
whence is 65536, the media file size is returned.
- When
whence is 0, 1, or 2, the actual data offset after the seeking is returned.
- -1: Seeking failed.