Oct 2014 – Feb 2020 · 5 yrs 4 mos · San Francisco Bay Area

• WmDRM tools for packaging compressed stream in cloud
• TimedText inspection and transformation backend pipeline. Integrated and delivered the first high quality production system rendering Japanese subtitles for Ja launch. Participated in TTML WG towards TTML 2.0 standardization.
• Extended the TimedText pipeline to include non-latin languages for subtitle localization.
• Championed the effort for Netflix Media Database (Highly scalable/queryable database with spatio-temporal modeling for multimedia assets).

Apr 2013 – Oct 2014 · 1 yr 6 mos · Cupertino

• Worked in the Frameworks teams to release an awesome product called FireTv from Amazon. Was primarily responsible for multimedia components in developing and enhancing FireOS Framework. With a team developed HTML-5 based solution that would play secure video content using latest premium extensions.
• Designed and developed features related to Amazon FireTv remote and gamepads.
• All the effort resulted in 6 patent in the field of multimedia streaming and 3 patents in general Framework design and Architecture

Mar 2010 – Apr 2013 · 3 yrs 1 mo · San Diego

• At Qualcomm have been largely responsible for video driver stack design and architecture for next gen smartphones targeting Android/Qnx/Windows platforms. With a team my responsibilities include productization and integration of the video stack in overall multimedia framework as well
• Responsible for discussion with customer interfacing teams and suggest/implement solution from driver's perspective. Carving out requirement for FW and video core for various application (e.g. ISDBT, WFD, Video-Chat etc.)
• Also responsible to overlooking testing/release and cutomer queries for video FW features

Oct 2009 – Feb 2010 · 4 mos · Bangalore

• Led a team to develop Ittiam's SVC solution for broadcast and conferencing applications. Experimented with various schemes for PSNR scalability including Qp selection, coefficient selection, Qp offset modelling, Key picture selection etc.
• Helped the team to come with time different schemes and mode selection for temporal and spatial scalability.
• Additional responsibilities included Firmware architecture design for encoders and different tools for TI's DaVinci series of processors.
• Also interacted with various customers and maketing team cater to their requirements, possible delivery schedules. With the help of a release team handled 4-5 customers for deliveries and requests on tool specific implementations/optimizations.
• Briefly supported customers (Cisco) onsite/offsite in integration and debugging network issues for video quality etc. Also flushed out issues related interoperability of MCUs and VC systems

Mar 2007 – Oct 2009 · 2 yrs 7 mos · Bangalore

• With a small team (3-5) contributed in algorithmic optimization of ME/MC and mode decision blocks for H.264 Baseline and Main profile encoders.
• Also wrote rate control algorithms for different application flavors (Low-delay, storage and multi-rate VBR channels). Wrote the FW for TI's DM64xx series of processors with video accelerators implementing AVC encoder
• Along with algorithm team helped in optimization of Adaptive Intra Refresh algorithm for video resilience. Participated actively in content generation and channel loss simulation in helping to test the algorithm. Independently took care of productizing the algorithm on Ti series of platforms
• Encoder was mainly consumed for personal video recorder/videophones and broadcasting products.

Jun 2004 – Mar 2007 · 2 yrs 9 mos · Bangalore

• Individually contributed in optimizing H.264 Baseline encoder for video conferencing solution. The product included porting and optimziation for Ti DM642. Wrote hand coded assembly for Ti's C64x Instruction Set Architecture.

Aug 2008 – Nov 2009 · 1 yr 3 mos · San Jose

• Worked closely with a team designing MCU for Cisco Tele-Conferencing Solution. Role involved customer interaction to gather requirement and suggest possible algorithmic/DSP solution, taking care of deliveries from Ittiam's side, integration of video codecs into the MCU.
• Large part of the integration involved sorting out frame-work issues, suggestion on frame-work design improvements, debugging video quality issues triggered by network packet losses and jitter along with troubleshooting SIP and codec level inter-operability issues with other available conferencing solutions.