Abstract: A statistical multiplexer that distributes the total bandwidth of a multiplexed signal among constituent multiplexed signals. Each multiplexed signal may have an associated priority weight and a complexity. In some embodiments, differences between the priority weights are dampened. In some embodiments the priority weights are used to reallocate complexity among the multiplexed signals.

Abstract: A statistical multiplexer that distributes the total bandwidth of a multiplexed signal among constituent multiplexed signals. Each multiplexed signal may have an associated priority weight and a complexity. In some embodiments, differences between the priority weights are dampened. In some embodiments the priority weights are used to reallocate complexity among the multiplexed signals.

Abstract: Techniques for synchronizing streams in an adaptive streaming environment include cross-chassis and intra-chassis synchronization of video and/or audio. In an adaptive streaming system that streams content in segments or chunks at varying levels of quality corresponding to different coding rates, implementations enable seamless switching between transcoded audio output streams. The streams synchronized may be those that have been ingested by the transcoder in a compressed format and transcoded into a different compressed format, as part of the transcoding process. The transcoded audio output streams may be synchronized such that audio frame boundaries contain identical pulse-code modulation (PCM) samples, packetized elementary stream (PES) location, and presentation time stamp (PTS) value.

Abstract: Techniques for synchronizing streams in an adaptive streaming environment include cross-chassis and intra-chassis synchronization of video and/or audio. In an adaptive streaming system that streams content in segments or chunks at varying levels of quality corresponding to different coding rates, implementations enable seamless switching between transcoded audio output streams. The streams synchronized may be those that have been ingested by the transcoder in a compressed format and transcoded into a different compressed format, as part of the transcoding process. The transcoded audio output streams may be synchronized such that audio frame boundaries contain identical pulse-code modulation (PCM) samples, packetized elementary stream (PES) location, and presentation time stamp (PTS) value.

Abstract: Coding may include receiving a source video bitstream including source frames and determining information from the source frames. The determined information may include timing information and grouping information and may be utilized in encoding synchronizing processed frames for a synchronized compressed video bitstream. Decoding may include receiving a synchronized compressed video bitstream including the encoding synchronizing processed frames. The decoding may include preparing video chunk files having boundaries defined by the encoding synchronizing processed frames and decoding the prepared video chunk files.

Abstract: A statistical multiplexer for coding and multiplexing multiple channels of digital television data, or multiple panels of HDTV digital television data. A bit rate need parameter is determined for each encoder in a stat mux group, and an encoding bit rate is allocated to each channel based on its need parameter. A transmission bit rate is allocated to each channel as a time-lagged version of its need parameter to minimize a rate mismatch between the output and the input of a decoder buffer. A packet processor checks for impending decoder buffer overflow or underflow events to set minimum and maximum limits on the transmission bit rate. Moreover, these limits are set based on whether a new transmission bit rate can be implemented before the decoding time stamp (DTS) of the current or next frame.

Abstract: A statistical multiplexer for coding and multiplexing multiple channels of digital television data, or multiple panels of HDTV digital television data. A bit rate need parameter is determined for each encoder in a stat mux group by scaling the complexities of previous pictures of the same and different picture types. Scaling factors based on an activity level, motion estimation score, and number of pictures of a certain type in a GOP, may be used. Moreover, the scaling factors may be bounded based on a linear or non-linear operator to prevent large variations in the factors. An encoding bit rate is allocated to each channel based on its need parameter.