Im using DM8107 DVR, 16-channel usecase is running, memory mapping is like this
var TOTAL_MEM_SIZE = 512*MB;
/* first 256MB */
var LINUX_SIZE = 128*MB;
var SR1_SIZE = 90*MB;
var VIDEO_M3_CODE_SIZE = 3*MB;
var VIDEO_M3_DATA_SIZE = 5*MB;
var VIDEO_M3_BSS_SIZE = 11*MB;
var DSS_M3_CODE_SIZE = 2*MB;
var DSS_M3_DATA_SIZE = 5*MB;
var DSS_M3_BSS_SIZE = 12*MB;
/* second 256MB */
var TILER_SIZE = 100*MB;
var SR2_FRAME_BUFFER_SIZE = 147*MB + 320*KB;
var SR0_SIZE = 6*MB - 256*KB;
var VIDEO_M3_EXCEPTION_CTX_SIZE= 128*KB;
var VPSS_M3_EXCEPTION_CTX_SIZE = 128*KB;
var HDVPSS_DESC_SIZE = 2*MB;
var HDVPSS_SHARED_SIZE = 512*KB;
var NOTIFY_SHARED_SIZE = 128*KB;
var REMOTE_DEBUG_SIZE = 64*KB;
free memory usage is like this
| FREE SPACE : 16 channel | |
| System Heap | 185592 B, Mbx |
| SR0 Heap | 1267200 B (1 MB) |
| SR2.Frame Buffer | 6905600 B (6 MB) |
| SR1.Bitstream Buffer | 27479424 B (26 MB) |
| Tiler 8-bit | 6766592 B (6 MB) - TILER ON |
| Tiler 16-bit | 13344768 B (12 MB) - TILER ON |
How to get more memory free from SR0,SR1,SR2? Also how the memory is exactly allocated?
I#define UTILS_ENCDEC_GET_BITBUF_SIZE(width,height,bitrate,framerate)
\
((width) * (height))
by changing this macro i can very SR1, how other shared memory regions can be changed?
