分享我的h.264 decoder, Verilog源码与工程

eebinqiu

分享我的h.264 decoder, Verilog源码与工程。
这是我从2011年开始写的， 一开始只是支持640x480分辨率，在cyclone4 e40上的， 没有实现deblocking filter， 帧率也只有25fps。
最近接了个无人机h.264 fpga解码的项目， 需要实现720p 60fps及的blocking filter，经过几个月的修改。终于完成了。
这里公开我原来在cyclone4 e40上的的的源码与工程， 和在米尔zturn zynq7020开发板及黑金zynq 7020上能解码720p 60fps的sd卡镜像，有板子的朋友可以试试。
下面是最新版本的datasheet，希望有项目合作的机会。
Function Overview.

Osenlogic OSD10receives the h.264 NAL stream from a FIFO from external memory, and it decodesit to YUV 4:2:0, then store to external memory.

OsenLogic OSD10includes bitstream parser(expglomb and CAVLC), IDCT/Iquant(residual), Intrapredictor and inter predictor and deblocking filter.

All areimplemented in Verilog HDL. The decoder can work without CPU or with CPU.

block overview

3.Interface Signals

Signal Name	Direction	Description
rst_n	Input	Global reset
clk	Input	Main decoder clock
ext_mem_rd_clk	Input	The clock associated with the external memory reader
ext_mem_wr_clk	Input	The clock associated with the external memory writer
ena	Input	Enable the decoder
stream_mem_data_in	Input	The stream data from stream fifo
stream_data_valid	Input	High when stream data is avialible from stream fifo
stream_mem_rd	Output	High when the decoder request data from stream fifo
ext_mem_init_done	Input	High when external memory finished initialization
ext_mem_writer_burst	Output	Indicate the start of write burst
ext_mem_burst_len_minus1	Output	When ext_mem_writer_burst_len_minus1 is High, indicated the length of write burst
ext_mem_writer_ready	Input	High wehn external memory is able to accept data from memory
ext_mem_writer_addr	Output	Valid when ext_mem_writer_burst is high,indicate the address writing to external memory
ext_mem_writer_data	Output	The data from the decoder to external memory
ext_mem_writer_valid	Ouput	High wehn the data from the decoder is availible to external mem
ext_mem_reader_burst_ready	Input	High when external memory is ready to accept data from the decoder
ext_mem_reader_burst	Output	Indicate the start of read burst
ext_mem_reader_burst_len_minus1	Output	When ext_mem_reader_burst_len_minus1 is High, indicated the length of read burst
ext_mem_reader_ready	Output	High when decoder is able to accept data form exterl memory
ext_mem_reader_data	Input	Data being read from external memory
ext_mem_reader_valid	Input	High when external memory data is availible
pic_width_in_mbs	Output	Total MBs in width
pic_height_in_map_units	Output	Total MBs in height
total_mbs_one_frame	Output	Total MBs in frame
start_of_frame	Output	High when start of decoding frame
end_of_frame	Output	High when end of a decoding frame
pic_num	Output	Total decode frames
mb_index	Output	Current decoding mb_index

4.Specifications

Model	Osen Logic OSD10 h.264 decoder
Profile	Baseline
Level	3.1
Input Format	H.264 NAL stream
Output Format	YUV4:2:0
Slice type supported	I,SI,P,SP
Entropy Coding	CAVLC
Supported frme sizes	Max: 1920x1088 Min:640x480
Supported bitrate	0 to 10Mps No decode rate control
Max supported resolution at max frame rate	1920x1088 @ 30fps, decoder clock working at 75M
Required external memory size	32Mbyte
External memory reader interface data width	64bit
External memory writer interface data width	32bit

eebinqiu

源码和sd卡镜像
myir zynq 7020或黑金ax7020播放1080p镜像， 可以用dd或
Win32DiskImager写入sd卡，sd >=2GB

xiaoyunvsmm

回复 1# eebinqiu


     非常谢谢楼主的分享

weigaozu

分享我的h.264 decoder, Verilog源码与工程。
这是我从2011年开始写的， 一开始只是支持640x480分辨率，在 ...
eebinqiu 发表于 2017-5-24 18:50

                               
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    楼主很强，呵呵。

菜鸟要飞

楼主很强

alex_leexiao

强。。。

GeneralZhou

能贴出来就知道楼主很牛逼

anon1118

楼主，请问这个IP占多少FPGA资源？

eebinqiu

回复 8# anon1118


    zynq7020整个系统占70%，ip占57%，资源占的挺多的，但是并行度高，75M可完成1080p解码

yanjia2011

好东西必须得支持下