Selective frame dropping based on hypothetical reference decoder buffer model for initial buffering delay reduction

Sachin Deshpande

doi:10.1117/12.766923

27 February 2008 Selective frame dropping based on hypothetical reference decoder buffer model for initial buffering delay reduction

Sachin Deshpande

Author Affiliations +

Proceedings Volume 6821, Multimedia on Mobile Devices 2008; 68210B (2008) https://doi.org/10.1117/12.766923
Event: Electronic Imaging, 2008, San Jose, California, United States

Abstract

We propose a method for selective frame dropping based on hypothetical reference decoder buffer model for initial buffering delay reduction. The client side buffering consists of two logical buffers: a de-jitter buffer and a pre-decoder buffer. To playback an encoded bit-stream without underflow the client must do a minimum initial buffering. This minimum initial buffering is a property of the bit-stream. The minimum initial buffering relates to the pre-decoder buffer. In addition the client can do additional initial buffering to handle network jitter and other bandwidth variations. Our proposed approach relates to reducing the minimum initial buffering delay for an already encoded bit-stream. We propose a method for selectively dropping frames to reduce the amount of initial buffering the client needs to do to avoid underflow during the streaming. Our proposed method is especially applicable to pre-stored content. The method is also particularly useful for variable bit-rate (VBR) encoded media. The method can be used by a streaming server. Alternatively the method can be implemented by a trans-rater/ transcoder. In a preferred embodiment our method can be applied in advance on a pre-stored bit-stream to decide which frames to drop to reduce the required minimum initial buffering.

Citation Download Citation

Sachin Deshpande "Selective frame dropping based on hypothetical reference decoder buffer model for initial buffering delay reduction", Proc. SPIE 6821, Multimedia on Mobile Devices 2008, 68210B (27 February 2008); https://doi.org/10.1117/12.766923

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