| |
|
QL305
H.264 Baseline/Main/High Profile High Definition Video/Audio codec companion chip
Overview
The QL305 is a part of Qpixel’s 3rd generation, low power, high definition H.264 audio and video codec processor, for digital consumer electronics and IT devices such as notebook and desktop PCs, webcams, mobile internet devices, and UMPCs,
- The QL305’s advanced video compression algorithms result in products supporting the best balance of superior video quality, low power consumption required in mobile devices for enhanced battery life, and affordability for the mass market consumer.
- The QL305, with a number of dedicated hardware blocks, has rich video features allowing support for multiple standard video formats, enhanced video effects, and customizable options. The on-chip audio codec is based on a dedicated ARC DSP to support multiple standard audio formats. The addition of the JPEG codec allows for simultaneous still image and video processing useful in several applications including camcorders and webcams.
- The QL303 provides multiple external interfaces to support key applications, minimizing system level cost and components, and maximizing design flexibility.
Key Features
Superior Video Quality
- H.264 Baseline, Main, and High Profile (up to Level 4.1) codec
- Supports resolutions ranging from QVGA up to full HD (1920x1080), including 720 60p and 1080 60i
- Advanced algorithms enable superior video quality in a small die size for competitive pricing
- JPEG still compression/decompression
- Half duplex at 1080i
- Full duplex at 720 30p
Mobile Focus = Extended Playback
- Innovative power management
- Advanced standby power savings
- 350mW typical (500 max)
Comprehensive Video Feature Set
- Advanced pre-processing such as scene change and motion detection
- Advanced noise reduction filter
- Entropy coding (CAVLC/CABAC support)
- User selectable GOP structure (I, IP, IPB)
- Optimized single-pass VBR and CBR encoding
- Video input and output scaling
- Full screen OSD with flicker filter and preview
Flexible Audio CODEC
- Dedicated ARC Sound DSP
- 8k, 16k, 24k, 32k, 44.1k, 48k sampling rate
- DSP architecture adds additional audio formats simply by changing firmware
Network Abstraction Layer
- MPEG Transport and Program Streams
- Elementary audio only and video only streams
- Apple Quick Time
Numerous Interfaces & Protocols
- Serial Flash
- USB 2.0 OTG
- PCI express Gen 1
- I2S Digital Audio
- ITU-R BT.656 Digital Video
- SMPTE 296 and 274
- I2C protocol
- 32-bit Mobile DDR memory support
- UART, GPIO
Key Application Targets
The QL305’s flexibility enables it to target a few key applications as listed below:
- Hardware video accelerator for notebook and desktop PCs for
- Transcoding and transrating
- Video chat
- Webcam
- MID (mobile internet device)
- UMPC
Fab Process Technology
|
|
|
