An adaptive transcoder is provided that includes a shared memory containing a plurality of decoder buffers to store incoming data packets, a plurality of decoder instances to control a decoding process to generate image raw data based on the incoming data packets, and a plurality of encoder instances configured to control an encoding process to generate outgoing packets based on the image raw data; and a data processing element containing a plurality of processing cores, and a core controller. Each decoder instance is paired with an encoder instance; and each decoder buffer is associated with a decoder instance. Each decoder buffer includes a monitoring element to monitor a respective decoder buffer, and provide buffer data corresponding to the status of the decoder buffer. Each encoder instance is associated with a processing core; and the core controller uses the buffer data to associate each decoder instance with a processing core.
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1. An adaptive transcoder, comprising: a shared memory containing a channel instance configured to provide instructions and memory for translating a plurality of incoming data packets from a first format to a second format; and a data processing element configured to provide the data processing for translating the plurality of incoming data packets from the first format to the second format, wherein the channel instance includes: a decoder FIFO buffer configured to store the plurality of incoming data packets, and to provide FIFO data indicating how many packets are contained in the FIFO buffer and FIFO data indicators of the status of the FIFO Buffer; a decoder instance configured to control a decoding process from the first format to generate a plurality of image raw data based on the plurality of incoming data packets; and an encoder instance configured to control an encoding process to generate a plurality of outgoing packets in the second format based on the image raw data; wherein the data processing element includes: a plurality of processing cores, each configured to perform the decoding process based on the decoder instance, or the encoding process based on the encoder instance; and a core controller is configured to assign the decoder an instance one of the plurality of processing cores; wherein the FIFO data indicators include: a warning indicator indicating whether the FIFO buffer has reached a first threshold of stored packets; an alert indicator indicating whether the FIFO buffer has reached a second threshold of stored packets, the second threshold being greater than the first threshold; and a critical alert indicator indicating whether the FIFO buffer has reached a third threshold of stored packets, the third threshold being greater than the second threshold.
2. The adaptive transcoder of claim 1 , wherein the core controller is configured to assign the FIFO buffer and the decoder instance to the one of the plurality of processing cores of based on a value of the warning indicator.
3. The adaptive transcoder of claim 1 , wherein the core controller is configured to control the encoding process to drop packets during encoding when the critical alert indicator indicates that the respective decoder buffer has reached the third threshold of stored packets.
4. The adaptive transcoder of claim 1 , wherein the channel instance further comprises an image processor instance configured to perform image processing operations on the image raw data after the decoding process and before the encoding processor, and wherein the image processor instance is configured to reduce the amount of image processing performed during the image processing operations when the alert indicator indicates that the respective decoder buffer has reached the second threshold of stored packets.
5. The adaptive transcoder of claim 1 , wherein the shared memory further comprises a plurality of channel instances.
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June 1, 2012
February 23, 2016
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