Automotive

At Qualcomm, worked as an Audio development lead and supported various automotive customers from Audio bring up to feature development on QC Sa6155 chipset.

multimedia , gstreamer, optimisation Linux kernel

• Define the design and architecture of the complete s/w solution using Trustzone technology.• As a member of BDA, interacted with partner(Fox studio) for specification review, test data verification during development phase as well as offering suggestions for efficient developments.• Technically managing a team of developers towards the complete development by setting short-term goals while motivating and offering technical guidance to meet the deadlines.•Technically contributed in development activities of some of the key modules apart from leading roles.• Executed all project milestones as per company guidelines starting from writing SRS, high level /detailed level design doc, maintaining project backlog, risk assessments etc.

✔ Video streaming Over Most (VOM) network on QNX • Worked as a module owner and held the responsibility to interact with customer for all the customer requirements. • Played a crucial role to root cause and fix the issues during production with very short turnaround time✔ MediaPlayer on QNX• Primarily worked on Multimedia framework related issues which surfaced extensive QA during start of production.• Fixed many issues related, to normal playback, fast forward, AV sync related problems, audio /video stutter irrespective of different demuxers, decoders.• Fixed problems like segmentation fault, hang during playback , other architectural issues in media framework.• Fixed issues like improper duration of WMA playback during trick mode, improper seeking, time stamp jumping back etc.• Added trick mode support to various demuxers.• Implemented multiple audio support in AVI, ASF, MP4 core parsers.• Implemented subtitle parsing support in MP4 core parsers.• Memory optimizations of various parsers.

Worked as an individual contributor in following projects.• Feasibility study and analysis of compressed domain scalable H264/AVC video decoder (Research based project)• Optimization of H264 Decoder Inverse Transform, deblocking function for Cortex A8• Optimization of H264 Decoder(MC, IDCT, DBlk etc) for ARM11 • Optimization of H264 Encoder(MC, ME, DCT, DBlk) for ARM9E• Generic optimization of JPEG Encoder and Decoder

Majorly worked on Message Passing Interface to develop efficient algorithm

• Worked on different codecs(H264, MPEG4, and VC1) in real time platforms like MAXIME, WinCE environment.• Worked on multi-thread based applications like MP4Writer, MP4Player, Picture in Picture (PIP) applications that use simultaneous encoding and decoding. • PORTING of MODS s/w to Windows VISTAAs the VISTA driver model (WDDM) changes completely from XP driver model (XDDM), The tests fail on VISTA as all the allocations of channel, objects and video memory are done by Operating system itself at boot up time.• Debugged in WinXP and Win VISTA driver stack through windbg (kernel debugger) and also windows remote debugger through IEEE1394 card.