Information processing apparatus and cellular phone
View Patent ↗According to an aspect of the invention, there is provided an information processing apparatus including: a storing unit configured to store a coded audio data corresponding to one of a plurality of codec types, an acquiring unit configured to acquire first information which indicate codec types supported by an external device, a receiving unit configured to receive second information, which designates a codec type to be used for decoding received coded audio data, from the external device, a determining unit configured to determine whether the designated codec types is acceptable to transmit the coded audio data stored in the storing unit by comparing codec type corresponding to the coded audio data and the codec type designated by the external device, and a requesting unit configured to request the external device to switch the designated codec type to another codec type which is one of the codec types detected based on the second information.
1. An information processing apparatus comprising:
a storing unit configured to store a coded audio data corresponding to one of a plurality of codec types;
an acquiring unit configured to acquire first information which indicates codec types supported by an external device;
a receiving unit configured to receive second information which indicates a codec type selected by the external device to be used for encoding;
a determining unit configured to determine whether the codec type indicated by the second information is an optimum codec type for encoding the audio data among the codec types indicated by the first information; and
a requesting unit configured to send a notice to the external device upon determination by the determining unit that the codec type indicated by the second information is not the optimum codec type, the notice indicating that a codec type for encoding the audio data is changed from the codec type by the second information to another codec type that is one of the codec types indicated by the first information.
2. The information processing apparatus according to claim 1 , further comprising:
a clipping unit configured to clip the coded audio data in a unit of frame which has a size appropriate for the one of the plurality of codec types and generate a plurality of packets to be transmitted to the external device; and
a transmitting unit configured to transmit the plurality of packets to the external device.
3. The information processing apparatus according to claim 1 , wherein the first information includes at least one of coding method, sampling rate, and bit rate.
4. The information processing apparatus according to claim 1 , further comprising:
a session establishing unit configured to establish a control session with the external device,
wherein the acquiring unit acquires the first information when the session establishing unit establishes a control session with the external device.
5. The information processing apparatus according to claim 2 , further comprising:
a session establishing unit configured to establish a control session and a transport session with the external device,
wherein, the acquiring unit acquires the first information when the session establishing unit establishes a control session with the external device, and the transmitting unit transmits the plurality of packets to the external device via the transport session.
6. The information processing apparatus according to claim 5 , wherein the requesting unit requests the external device to switch the codec type selected by the external device to the another codec type after the transport session has been established.
7. A cellular phone connectable to a base station, comprising:
a storing unit configured to store a coded audio data corresponding to one of a plurality of codec types;
an acquiring unit configured to acquire first information which indicate codec types supported by a rendering device;
a receiving unit configured to receive second information which indicates a codec type selected by the rendering device to be used for encoding;
a determining unit configured to determine whether the codec type indicated by the second information is an optimum codec type for encoding the audio data among the codec types indicated by the first information; and
a requesting unit configured to send a notice to the rendering device upon determination by the determining unit that the codec type indicated by the second information is not the optimum codec type, the notice indicating that a codec type for encoding the audio data is changed from the codec type indicated by the second information to another codec type that is one of the codec types indicated by the first information.
8. The cellular phone according to claim 7 , further comprising:
a clipping unit configured to clip the coded audio data in a unit of frame which has a size appropriate for the one of the plurality of codec types and to generate a plurality of packets to be transmitted to the rendering device; and
a transmitting unit configured to transmit the plurality of packets to the rendering device.
9. The cellular phone according to claim 7 , wherein the first information includes at least one of coding method, sampling rate, and bit rate.
10. The information processing apparatus according to claim 7 , further comprising:
a session establishing unit configured to establish a control session with the rendering device,
wherein the acquiring unit acquires the first information when the session establishing unit establishes a control session with the rendering device.
11. The cellular phone according to claim 8 , further comprising:
a session establishing unit configured to establish a control session and a transport session with the rendering device,
wherein, the acquiring unit acquires the first information when the session establishing unit establishes a control session with the rendering device, and the transmitting unit transmits the plurality of packets to the rendering device via the transport session.
12. The cellular phone according to claim 11 , wherein the requesting unit requests the rendering device to switch the codec type selected by the rendering device to another codec type after the transport session has been established.
13. The cellular phone according to claim 7 , wherein the rendering device is a headset.