H.264官方软件JM源代码分析

JM源码地址：

http://iphome.hhi.de/suehring/tml/download/

参考：

H.264官方软件JM源代码简单分析-编码器lencod

H.264官方软件JM源代码简单分析-解码器ldecod

HEVC官方软件HM源代码简单分析-编码器TAppEncoder

HEVC官方软件HM源代码简单分析-解码器TAppDecoder

我下载的经典版JM8.6

解压后，打开下面的文件

删除repdump项目

编码————————————————————————————

右击lencod，设置为启动项目

修改输出目录

点击编辑——》宏

设置调试的工作目录为刚才的目录

重新生成

道bin目录下生成了EXE文件

复制下面的文件，改名为encoder.cfg

                 

修改输入文件：

然后运行程序：

Parsing Configfile encoder.cfg...........................................................................................
 
-------------------------------------------------------------------------------
 Input YUV file                    : foreman_part_qcif.yuv
 Output H.264 bitstream            : test.264
 Output YUV file                   : test_rec.yuv
 Output log file                   : log.dat
 Output statistics file            : stat.dat
-------------------------------------------------------------------------------
  Frame  Bit/pic WP QP   SnrY    SnrU    SnrV    Time(ms) MET(ms) Frm/Fld   I D
-------------------------------------------------------------------------------
0000(NVB)     168
0000(IDR)   21960 0 28  37.387  41.260  42.850      274       0     FRM    99
0001(I)     21696 0 28  37.363  41.333  43.079      278       0     FRM    99
0002(I)     22240 0 28  37.399  41.280  42.818      285       0     FRM    99
--------------------------------------------------------------------------
 Total Frames:  3 (3)
 Leaky BucketRateFile does not have valid entries;
 using rate calculated from avg. rate
 Number Leaky Buckets: 8
     Rmin     Bmin     Fmin
   658950    22240    21966
   823680    22240    21960
   988410    22240    21960
  1153140    22240    21960
  1317870    22240    21960
  1482600    22240    21960
  1647330    22240    21960
  1812060    22240    21960
-------------------------------------------------------------------------------
 Freq. for encoded bitstream       : 30
 Hadamard transform                : Used
 Image format                      : 176x144
 Error robustness                  : Off
 Search range                      : 16
 No of ref. frames used in P pred  : 10
 Total encoding time for the seq.  : 0.837 sec
 Total ME time for sequence        : 0.000 sec
 Sequence type                     : IPPP (QP: I 28, P 28)
 Entropy coding method             : CAVLC
 Profile/Level IDC                 : (66,30)
 Search range restrictions         : none
 RD-optimized mode decision        : used
 Data Partitioning Mode            : 1 partition
 Output File Format                : H.264 Bit Stream File Format
------------------ Average data all frames  -----------------------------------
 SNR Y(dB)                         : 37.38
 SNR U(dB)                         : 41.29
 SNR V(dB)                         : 42.92
 Total bits                        : 66064 (I 21960, P 43936, NVB 168)
 Bit rate (kbit/s)  @ 30.00 Hz     : 660.64
 Bits to avoid Startcode Emulation : 0
 Bits for parameter sets           : 168
-------------------------------------------------------------------------------
Exit JM 8 encoder ver 8.6
请按任意键继续. . .

 

解码————————————————————————————

设置ldecod为启动项目

重新生成项目

如上修改工作目录和输出目录为  $(ProjectDir)bin

下面的配置文件decoder.cfg就可以用于解码

文件内容为

test.264                 ........H.264 coded bitstream
test_dec.yuv             ........Output file, YUV 4:2:0 format
test_rec.yuv             ........Ref sequence (for SNR)
10                       ........Decoded Picture Buffer size
0                        ........NAL mode (0=Annex B, 1: RTP packets)
0                        ........SNR computation offset
1                        ........Poc Scale (1 or 2)
500000                   ........Rate_Decoder
104000                   ........B_decoder
73000                    ........F_decoder
leakybucketparam.cfg     ........LeakyBucket Params
This is a file containing input parameters to the JVT H.264/AVC decoder.
The text line following each parameter is discarded by the decoder.

 

设置命令参数

运行结果：

--------------------------------------------------------------------------
 Decoder config file                    : decoder.cfg
--------------------------------------------------------------------------
 Input H.264 bitstream                  : test.264
 Output decoded YUV 4:2:0               : test_dec.yuv
 Output status file                     : log.dec
 Input reference file                   : test_rec.yuv
--------------------------------------------------------------------------
POC must = frame# or field# for SNRs to be correct
Frame    POC   QP  SnrY    SnrU    SnrV   Time(ms)
  0(I)    0    28  0.0000  0.0000  0.0000    27
  1(I)    2    28  0.0000  0.0000  0.0000    25
  2(I)    4    28  0.0000  0.0000  0.0000    22
-------------------- Average SNR all frames ------------------------------
 SNR Y(dB)           :  0.00
 SNR U(dB)           :  0.00
 SNR V(dB)           :  0.00
 Total decoding time : 0.074 sec
--------------------------------------------------------------------------
 Exit JM 8 decoder, ver 8.6
请按任意键继续. . .