Transcoding media system
View Patent ↗A proxy subsystem for a media renderer comprises a network interface, a content transfer subsystem coupled to the network interface, a format transcoder coupled to the content transfer subsystem and capable of coupling to a rendering hardware. The proxy subsystem further comprises a connection manager service coupled to the content transfer subsystem and the format transcoder subsystem, and a rendering controller capable of coupling to the rendering hardware.
1. A computer system comprising:
a network controller;
an emulator interface controller coupled to the network controller;
an emulator processor coupled to the emulator interface controller and configured to emulate a storage device from information received from a network via the network controller;
a content bus interface coupled to the emulator interface controller; and
a format transcoder executable on the emulator processor that initiates content transfers by creating a navigation logfile containing frame identification and a related group of picture lists with file offsets.
2. The computer system according to claim 1 wherein the emulator interface controller is configured to couple to a computer bus and emulate bus data and control signals of the storage device.
3. The computer system according to claim 2 wherein the emulator interface controller executes on the emulator processor and is configured to execute multiple functions including control, data transfer, emulation, transcoding, data storage, interfacing, and test.
4. A computer system according to claim 2 further comprising:
a memory coupled to the emulator interface controller and storing data and program code executable on the emulator processor including program code for emulating bus data and control signals of a host, program code for emulating bus data and control signals of a device, and program code for selecting and seamlessly combining communication of actual bus data and control signals and emulated bus data and control signals on the computer bus.
5. A computer system according to claim 1 wherein the format transcoder executes one or more of a plurality of operations including:
initiating content transfers;
selectively activating modules that transfer, manipulate, and buffer audio and video streams; and
encoding frames.
6. A computer system according to claim 5 , wherein:
the format transcoder can selectively pass through audio and video streams without activating the transfer, manipulate, and buffer modules.
7. A computer system according to claim 6 wherein:
the manipulate modules include modules that selectively manipulate video frames including:
removing an arbitrary frame region for processing;
de-interlacing a video frame;
enlarging or reducing video width or height;
filtering for image resizing;
removing an arbitrary frame region for encoding;
downsampling of video width and height;
video frame flipping or mirror imaging;
gamma correction;
anti-aliasing; color manipulations; and
the manipulate modules include modules that selectively manipulate audio frames including:
volume changes;
audio stream resampling; and
synchronizing video and audio frames.