(re numlines)
I have a "log-file" of changes and removing/optimizing I and Joakim
Enerstam (also on the list) did when we played with the code. Maybe some
of them can be of use..
Unfortunately I don't have much time to play with mp3encoding and lame
nowadays..
Many changes are just to save mem for the DSP we used...
<logfile included>
Backup 28
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loop.c - removed an un-needed abs() in the ix_max function.
bitstr.c bitstrp.h bitstr.h main.c - removed some code for MPEG2 and
ancillary data in bitstr.c, that were never used in the code..
l3psy.c - changed size of energy to 465 for DSP_ASM eleminated energy_s
l3ps-pvt.h - changed partition_l size to 465
fft.c - changed calc_energy to just calculate 465 energy values
Backup 27
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l3ps-pvt.h, l3psy.c - moved partition_l, and _s to l3ps-pvt.h and changed
type from int to short to save some mem.
Also declared some variables to "far".
Backup 26
--------
Files changed:
main.c, loop.c, loop.h - removed unused static DOUBLE xr_dec[2][2][576]
variable. (saved 9k)
main.c, mdct.c, mdct.h - changed from pointers to static variables so no
malloc is needed..
l3psy.c - cleaned it up abit, moved short fft to be done only on short blocks
l3ps-pvt.h - using a SNR_s_new instead of SNR_s.
loop.c - optimized the quantanf_init and removed some #ifdef DEBUG:s
loop.c - removed all code using mixed_block_flag != 0 since its always 0.
bitstr.c - removed mixed_block code.. -this might be incorrect but I dont
think so..
added files:
main.bat - used for compiling main.c for the DSP
breakpoints.bpt - CTRL-b in simulator to set up breakpoints for:
main, exit and C$$EXIT.
Backup 25
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Files changed:
mdct.c - added more precalculated values so no init is used and no sqrt()
loop.c - changed all sqrt(2.0) to SQRT2=1.41.. because linker/compiler don't
understand
that it is constant..
main.c - commented unused variable i away..
l3ps-pvt.h - added const before all static declarations so..
enc-pvt.h - ..the DSP code get optimized, and so we can put..
mdct-pvt.h - ..the ".const" in another memory etc..
files loop.h loop-pvt.h bitstr.h bitstrp.h l3side.h loop.c main.c bitstr.c
changed to use short for the l3_enc[2][2][576] buffer. Lots of variables and
function-headers/declarations had to be changed.. look at diffs.tar for all
changes. (we saved 4Kb of datamem)
Backup 24:
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Files changed:
l3side.h - struct "III_input3" removed
bitstr.c - added a #define again for DSP.
removed MPEG2 section.
common.h - removed unused variables etc.
common.c - removed unused variables etc.
main.c - changed in-argument to l3psy to 44100 so I could remove vector in common
mdct.c - calculated init-vectors for mdct so no init-phase is needed
New files:
lnk.bat - for linking-only for dos DSP.
mdct-pvt.h - for init tables in mdct.c
Backup 23:
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Files changed:
fft.c - renamed energy function and the call, changed #ifdef DSP to #ifdef DSP_ASM
common.h - cleaned up unused #defines etc.
common.c - cleaned up unused variables etc.
bitstr.c - added a #define for the DSP
Makefile - added the DSP_ASM define
New files:
make.bat - make script for DSP compiling in dos
makke.bat - make for compiling 1 DSP .c-file in dos
lnk.cmd - memory file for the DSP linker
Backup 22:
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Changed files:
loop.c - included fakeHuffmanCode in bit_count function.
fft.c - removed all phi:s
l3psy.c - removed all phi:s, using a constant cw of 0.65 for spectral lines
7-200
Backup 21
Changed l3ps-pvt.h and l3psy.c to use
correct numlines vector.
Backup 20
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Changed files:
l3psy.c
fft.c
Added files:
fft-pvt.h
cfft.asm
Backup 19
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.
.
.
<end of logfile>
Note that we used only 16bit 44.1 samples at a bitrate of 128kbps, on the
DSP..
Sorry for not having time to check this myself :/
/Jan Peman (searching for a better free C166 compiler than GNU C16x)
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