Summary
Overview
Work History
Education
Timeline
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Padmassri Chandrashekar

Bangalore,India

Summary

Leadership: Around 18 plus years of experience in the area of Multimedia, DSP and Embedded 
Systems. 
 Significant experience working with software engineering leadership, technical teams and individual contributors and people management. Involved in hiring and building strong team to build to build next-generation IPTV solutions Product definition and engineering delivery for next gen streaming solution, content streaming app for US retail market for Linux and Android platform Driving the engineering solutions team for Linux based STB development Driving the engineering solutions team for Android based streamer solutions. Driving operation excellence to ensure world class, on time and high quality deliverable

Overview

15
15
years of professional experience

Work History

Intel IPP Library
  • Expertise in development and optimization of algorithm related to HEVC encoding.
  • Integration of Digital Audio Sub System Frame Work on Multimedia Platforms.
  • Knowledge of multimedia standards for audio/video coding and digital broadcast.
  • Expertise in audio, video and speech codecs.
  • Extensive experience in developing optimized C and assembly 
implementations of codecs and post processing algorithms.
  • Extensive experience with multiple DSP processors (TI, ARM Intel).
  • Hands on in different programming languages such as C, C++ and Vectorization techniques using 
ARM-NEON and Intel-SSE intrinsic.
  • Hands on experience in different DSP low level assembly 
programming languages such as, TI DSPs.

Senior Engineering Manager

Xperi Corporation India Private Limited, former TiVO

Principal Software Engineer

ARRIS India Private Limited, Motorola Mobility
07.2006 - 01.2017

Senior Software Engineer

Celstream Technologies Pvt Ltd
12.2003 - 07.2006

Brandwidth Technologies Pvt Ltd
02.2002 - 12.2003
  • Accomplishments/Recognitions:.
  • 15 patent applications and 11 granted patents, many are filed an in the process of publication.
  • Https://uspto.report/patent/search/Padmassri.
  • Around 20 patent application filed at Xperi, in the process on getting published.
  • Multiple HiFi Awards received at TiVO.
  • Multiple Bravo awards for outstanding contribution at Motorola mobility.
  • Go Getter Award” at Celstream Technologies for consistent performance.
  • Was also given a spot award for Erroneous Bit Stream Generation and Error Management in AC3 Decoder at Celstream Technologies Projects:
 Video Quality Improvement on AVC video for Transcoder product (MPEG2 to MPEG4).
  • Extensively involved in video quality improvement both PSNR and subjective quality of AVC transcoder.
  • Extensive algorithmic changes to get the desired quality and retaining the CPU performance for real time.
  • Involved in implementing RDO and optimized mode decisions algorithms.
  • Re-architecture of scheduler to improve the usage of multiple cores.
  • Involved in planning and driving the whole effort.
  • Algorithmic changes to reduce mosquito noise.
  • Overlay of text over active video and related algorithmic changes for Motion Compensation Integration of HEVC decoder on Legacy Transcoder product.
  • Designed API interface to integrate HEVC decoder to the transcoder.
  • Integrated decoder with the existing system level, handled changes done both at the decoder as well as 
system level changes.
  • Handled customer reported bugs.
  • Involved in planning and driving the whole effort.
  • Development of HEVC Encoder and Decoder on iPad (iOS) and Nexus (Android) tablets Intel platform.
  • Design and development of novel mode decision algorithm for HEVC encoder(same has be patented).
  • Development CPU intense modules in assembly, red.
  • Architecture and design of modules to suit vector programming.
  • Handled cache optimization and cache analysis.
  • Designed the decoder and encode such that atomic level parallel programming can be achieved (same has be patented).
  • Multi-core programming on iOS using GCD and threaded programming on Intel platforms.
  • Involved in planning and driving the whole effort.
  • Developed CDS (Content Directory Service of DLNA) of Set Top Boxes to support DVR to PC.
  • This project required CDS support to stream content from DVR based set-top to PCs via DLNA.
  • Design and development of CDS on Set Top Devices.
  • Designed and developed APIs for Client Application to interface with CDS(involved closely with customer 
for technical discussions).
  • Handled from design to delivery of the whole CDS system (same has been patented).
  • Involved in planning and driving the whole effort 
 Development and support of features related to DVR module on Set Top Boxes.
  • Involved in support and enhancement of features like Trick play, Home Media Network, Targeted Advertising.
  • Developed features like port Harding, trick play(end of content).
  • Handled various critical customer issues 
 DSP Audio Sub System Frame Work Development on OMAP3430 for Windows Mobile at Motorola Mobility.
  • Development of DSP subsystem for windows mobile devices on OMAP33430/2420 platform.
  • This also involved integrating multimedia features to the frame work.
  • Integration of Post Processing Audio Modules (Noise Suppressors).
  • Development of Mixer and Integrating to Mixer.
  • Good understanding of TI Multimedia Frame Work.
  • Also handling customer issues 
 Development of EAAC plus Decoder on 64plus and integrating to OMAP3430 at Motorola.
  • Project involves optimization of decoder on OMAP3430 and making the codec XDAIS compliant.
  • Getting the codec up on the device.
  • Played a lead role in getting the codec up and integrating it on to the Windows Mobile.
  • Algorithmic optimization of Huffman Module.
  • Handling field issues 
 H264 Encoder and decoder integration to FPGA and RTSP on 64x - Motorola.
  • Project involves interfacing H246 (codec) on FPGA, which interacts with camera application and add streaming support.
  • RTSP support and testing system for streaming support.
  • Handled field issues 
 Memory Optimization on MPEG4 AAC at THOMSON Multimedia.
  • AAC decoder, involved in Memory Optimization of few of the tables.
  • Implemented techniques like Spline Cubical Techniques for Optimization.
  • Was responsible for analysis, development and testing w.r.t memory optimization.
  • Evaluation of Master control software for MP3 player (TCI5) at THOMSON Multimedia – Rennes.
  • Analysis of the specifications provided by the clients.
  • Design and Development.
  • Coding, Testing and Review.

Education

B.E - Electronics and Communication

Dayananda Sagar College of Engineering

Timeline

Principal Software Engineer

ARRIS India Private Limited, Motorola Mobility
07.2006 - 01.2017

Senior Software Engineer

Celstream Technologies Pvt Ltd
12.2003 - 07.2006

Brandwidth Technologies Pvt Ltd
02.2002 - 12.2003

B.E - Electronics and Communication

Dayananda Sagar College of Engineering

Senior Engineering Manager

Xperi Corporation India Private Limited, former TiVO

Intel IPP Library

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