H.264 BP/MP Encoder, BLACKFIN
H.264 BP/MP Encoder
顶部
概述
优势和特点
- Profile: Baseline Profile and Main Profile
- Level: Up to L3.0 inclusive, L4 and L5 for 1.3 and 5.0 Mega pixel encoding
- Frame types supported: I, P and B
- Input Encoding Modes - Progressive, Interlace. Interlace not supported for B frames
- Input Resolution: Up to 5 Mega Pixel, D1 inclusive
- Entropy Encoder: CABAC, CAVLC
- Number of Reference Frames: 1, 2 (for Interlace and B-frames)
- Motion vector resolution: Half pel and quarter pel
- In-loop de-blocking filter: Yes
- Pre-Processing: A simple 2:1 and 4:1 downscaling, de-interlacing for YUV422 input (in ITU-R BT.656 and progressive YUV422 from CMOS sensors) and YUV420 input.
- Separate Pre-processing APIs are provided to allow applications to plug-in its own pre- processing blocks into encode
- Scene Change Detection: Supported
- Scalability: Scalable Search Engine for MIPS and Quality trade-off
- Cache: I-Cache and D-Cache
- ROI : Region of Interest Encoding Support for YUV420 and YUV422 input formats
- ADSP-BF561/BF609 core loading: Symmetrical or Asymmetrical loading across two cores
- Bitrate control: VBR and CBR. Flexibility of switching between VBR and CBR during encoding
- Both NTSC & PAL format supported
- Release format: Object code module with C source wrapper
- Input format: ITU-R BT.656 format or YUV420 planar format or YUV422 progressive format from CMOS sensors
- Output format: H.264 BP/MP elementary bitstream in Annex-B output format
- Frame Rate: 2-30 frames per second
- Bit Rates: All bit rates specified by standard (VBR and CBR mode configurable for desired bit rates)
- Multiple instance: Support simultaneous multiple channel encoding
- Max Output Resolution:
- ADSP-BF561/BF609/BF707: Up to VGA at 30fps; 5MPixel at lower fps
- ADSP-BF533: up to 1/2 D1 at 30fps; D1 at 15fps; 5Mpixel at lower fps
产品详情
The H.264 BP/MP encoder has been highly optimized to run on the Analog Devices ADSP-BF5xx/6xx Blackfin processors. It is a self-contained software module that is fully compliant with the INTERNATIONAL STANDARD “ISO/IEC 14496-10:2005” Information Technology – Coding of audio-visual objects – Part 10: Advanced Video Coding.
The code has been implemented using Instruction and Data cache. To optimize video encoding performance, internal SRAMs for Program and Data memory and Memory DMA are also utilized effectively.
许可
Each module supports the Analog Devices, Inc. (ADI) Blackfin or SHARC Processor family and is a licensed product that is available in object code format. Recipients must sign or accept a license agreement with ADI prior to being shipped or downloading the modules identified in the license agreement.
性能指标
MIPS summary:
Movie Content - Baseline Profile:
Surveillance Content - Main Profile (CABAC):
Movie Content – Main Profile (CABAC):
| Code memory (KB) | Data RAM (KB) | Fame Buffer (MB) | Output Buffer (MB) | Input Buffer (MB) | Cycles/pel (MIPS) | |
| Average | Moving Average Peak | |||||
| 96.93 | 58.5 | 1.34 | 1.00 | 1.08 | 77 (798) | 95 (985) |
Movie Content - Baseline Profile:
| Code memory (KB) | Data RAM (KB) | Fame Buffer (MB) | Output Buffer (MB) | Input Buffer (MB) | Cycles/pel (MIPS) | |
| Average | Moving Average Peak | |||||
| 96.93 | 58.5 | 1.34 | 1.00 | 1.08 | 93 (964) | 116 (1202) |
Surveillance Content - Main Profile (CABAC):
| Code memory (KB) | Data RAM (KB) | Fame Buffer (MB) | Output Buffer (MB) | Input Buffer (MB) | Cycles/pel (MIPS) | |
| Average | Moving Average Peak | |||||
| 96.93 | 60.3 | 1.34 | 1.00 | 1.08 | 86 (892) | 116 (1203) |
Movie Content – Main Profile (CABAC):
| Code memory (KB) | Data RAM (KB) | Fame Buffer (MB) | Output Buffer (MB) | Input Buffer (MB) | Cycles/pel (MIPS) | |
| Average | Moving Average Peak | |||||
| 96.93 | 60.3 | 1.34 | 1.00 | 1.08 | 100 (1037) |
130 (1348) |
- MIPS measured using a bit rate of 1.0Mbps, 30 fps, 720x480 (NTSC D1) image size, ITU-R BT.656 input, NTSC format, ADSP-BF609 rev 0.2 processor, for Baseline Profile and Main Profile
- Measurements done with CCLK1=500, SCLK2=250 for ADSP-BF609
- Data cache and instruction cache are enabled. The cache is set in “write back” and “small cache” mode.
- Memory DMA is used with 32 bit DMA.
- “Data RAM” for one instance includes Stack, Scratch, Constant Data Tables, Encoder Instance Memory, Encoder Scratch Memory allocated by application for D1 PAL resolution
- Frame Buffer for one instance of encoder and D1 PAL resolution
- Minimum Input and Output Single Buffers, for ITU-R BT656 D1 PAL input
- 1 MB = 1024 KB; 1 KB = 1024 Bytes.
- The “Avg” and “Moving Avg Peak” in lists the cycle counts in terms of cycles/pixel.
- NOTE: In deriving the “Moving Avg Peak” value, an 8 consecutive frame sliding window was used. An average cycle count was measured for each window of frames, and the worst case average cycle from all the sliding window measurements was determined to be the “Moving Avg Peak” value.
系统要求
- Windows XP Professional SP3 (32-bit only).
- Windows Vista Business/Enterprise/Ultimate SP2 (32-bit only). It is recommended to install the software in a non-UAC-protected location.
- Windows 7 Professional/Enterprise/Ultimate (32 and 64-bit). It is recommended to install the software in a non-UAC-protected location.
- Minimum of 2 GHz single core processor, 3.3 GHz dual core is recommended.
- Minimum of 1 GB memory (RAM), 4 GB is recommended.
- Minimum of 2 GB hard disk (HDD) space is required.
- CrossCore Embedded Studio for Analog Devices Processors.
- VisualDSP++ for Analog Devices Processors.