demux_lmlm4.s

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· S 代码 · 共 1,616 行 · 第 1/2 页

j	$L152
subu	$3,$6,$5

$L218:
lw	$16,32($sp)
bltz	$16,$L216
lw	$17,16($18)

li	$2,262144			# 0x40000
slt	$2,$2,$16
bne	$2,$0,$L162
nop

blez	$16,$L122
nop

$L196:
lw	$6,40($17)
j	$L200
lw	$5,36($17)

$L170:
slt	$2,$16,$3
movn	$3,$16,$2
addu	$4,$5,$3
subu	$16,$16,$3
move	$5,$4
blez	$16,$L197
sw	$4,36($17)

$L200:
subu	$2,$6,$5
move	$4,$17
bne	$2,$0,$L170
move	$3,$2

jal	stream_fill_buffer
nop

beq	$2,$0,$L197
nop

lw	$5,36($17)
lw	$6,40($17)
j	$L170
subu	$3,$6,$5

$L99:
lw	$3,%lo(video)($2)
beq	$3,$0,$L224
li	$2,-1			# 0xffffffffffffffff

lw	$4,52($18)
lw	$3,68($4)
beq	$3,$2,$L225
nop

$L116:
li	$2,1			# 0x1
beq	$3,$2,$L226
lw	$16,32($sp)

bltz	$16,$L216
lw	$17,16($18)

li	$2,262144			# 0x40000
slt	$2,$2,$16
bne	$2,$0,$L126
nop

blez	$16,$L122
nop

lw	$6,40($17)
$L231:
j	$L202
lw	$5,36($17)

$L134:
slt	$2,$16,$3
movn	$3,$16,$2
addu	$4,$5,$3
subu	$16,$16,$3
move	$5,$4
blez	$16,$L197
sw	$4,36($17)

$L202:
subu	$2,$6,$5
move	$4,$17
bne	$2,$0,$L134
move	$3,$2

jal	stream_fill_buffer
nop

beq	$2,$0,$L197
nop

lw	$5,36($17)
lw	$6,40($17)
j	$L134
subu	$3,$6,$5

$L219:
j	$L136
sw	$16,%lo(video)($3)

$L179:
jal	stream_seek_long
move	$4,$17

lw	$31,68($sp)
lw	$21,64($sp)
lw	$20,60($sp)
lw	$18,56($sp)
lw	$17,52($sp)
lw	$16,48($sp)
li	$2,1			# 0x1
j	$31
addiu	$sp,$sp,72

$L221:
lw	$5,16($18)
lw	$2,4($18)
$L213:
lw	$6,32($sp)
sw	$20,16($sp)
sw	$21,20($sp)
sw	$2,24($sp)
jal	ds_read_packet
sw	$0,28($sp)

j	$L122
lw	$17,16($18)

$L216:
lw	$2,28($17)
andi	$2,$2,0x2
beq	$2,$0,$L122
nop

$L161:
lw	$4,44($17)
$L230:
lw	$2,36($17)
lw	$6,40($17)
addu	$2,$4,$2
subu	$2,$2,$6
addu	$5,$16,$2
slt	$3,$5,$4
beq	$3,$0,$L165
subu	$2,$4,$6

subu	$2,$5,$2
bltz	$2,$L165
nop

j	$L122
sw	$2,36($17)

$L222:
lw	$2,28($17)
andi	$2,$2,0x2
bne	$2,$0,$L174
li	$2,1			# 0x1

j	$L234
lw	$31,68($sp)

$L217:
move	$20,$0
j	$L95
move	$21,$0

$L220:
lw	$4,1092($18)
beq	$4,$0,$L227
li	$5,1			# 0x1

$L156:
li	$2,268435456			# 0x10000000
li	$3,1			# 0x1
ori	$2,$2,0x4
sw	$3,68($17)
sw	$2,12($4)
lw	$3,68($17)
j	$L154
sw	$4,92($17)

$L162:
lw	$2,28($17)
andi	$2,$2,0x4
beq	$2,$0,$L196
nop

j	$L230
lw	$4,44($17)

$L126:
lw	$2,28($17)
andi	$2,$2,0x4
bne	$2,$0,$L161
nop

j	$L231
lw	$6,40($17)

$L165:
jal	stream_seek_long
move	$4,$17

j	$L122
lw	$17,16($18)

$L225:
lw	$3,68($18)
beq	$3,$0,$L228
li	$5,1			# 0x1

$L118:
li	$2,80			# 0x50
sw	$16,68($4)
sw	$2,12($3)
sw	$3,92($4)
j	$L116
lw	$3,68($4)

$L228:
move	$4,$18
jal	new_sh_audio_aid
li	$6,1			# 0x1

lw	$4,52($18)
j	$L118
lw	$3,68($18)

$L226:
lw	$5,16($18)
j	$L213
lw	$2,4($18)

$L227:
move	$4,$18
jal	new_sh_video_vid
li	$6,1			# 0x1

lw	$17,56($18)
j	$L156
lw	$4,1092($18)

$L144:
lw	$2,28($17)
andi	$2,$2,0x4
beq	$2,$0,$L193
nop

$L142:
lw	$4,44($17)
lw	$2,36($17)
lw	$6,40($17)
addu	$2,$4,$2
subu	$2,$2,$6
addu	$5,$16,$2
slt	$3,$5,$4
beq	$3,$0,$L147
nop

subu	$2,$4,$6
subu	$2,$5,$2
bltz	$2,$L147
nop

sw	$2,36($17)
$L143:
lui	$6,%hi($LC7)
$L232:
addiu	$6,$6,%lo($LC7)
$L235:
li	$4,7			# 0x7
jal	mp_msg
li	$5,6			# 0x6

j	$L91
li	$2,-1			# 0xffffffffffffffff

$L224:
lw	$3,32($sp)
lw	$2,36($sp)
addu	$16,$3,$2
bltz	$16,$L229
lw	$17,16($18)

li	$2,262144			# 0x40000
slt	$2,$2,$16
bne	$2,$0,$L106
nop

blez	$16,$L105
nop

$L188:
lw	$6,40($17)
j	$L201
lw	$5,36($17)

$L114:
slt	$2,$16,$3
movn	$3,$16,$2
addu	$4,$5,$3
subu	$16,$16,$3
move	$5,$4
blez	$16,$L105
sw	$4,36($17)

$L201:
subu	$2,$6,$5
move	$4,$17
bne	$2,$0,$L114
move	$3,$2

jal	stream_fill_buffer
nop

beq	$2,$0,$L105
nop

lw	$5,36($17)
lw	$6,40($17)
j	$L114
subu	$3,$6,$5

$L106:
lw	$2,28($17)
andi	$2,$2,0x4
beq	$2,$0,$L188
nop

$L104:
lw	$4,44($17)
lw	$2,36($17)
lw	$6,40($17)
addu	$2,$4,$2
subu	$2,$2,$6
addu	$5,$16,$2
slt	$3,$5,$4
beq	$3,$0,$L109
nop

subu	$2,$4,$6
subu	$2,$5,$2
bltz	$2,$L109
nop

sw	$2,36($17)
$L105:
lui	$6,%hi($LC6)
$L233:
addiu	$6,$6,%lo($LC6)
$L236:
li	$4,7			# 0x7
jal	mp_msg
li	$5,6			# 0x6

j	$L91
li	$2,-1			# 0xffffffffffffffff

$L223:
lw	$2,28($17)
andi	$2,$2,0x2
bne	$2,$0,$L142
lui	$6,%hi($LC7)

j	$L235
addiu	$6,$6,%lo($LC7)

$L229:
lw	$2,28($17)
andi	$2,$2,0x2
bne	$2,$0,$L104
lui	$6,%hi($LC6)

j	$L236
addiu	$6,$6,%lo($LC6)

$L147:
jal	stream_seek_long
move	$4,$17

j	$L232
lui	$6,%hi($LC7)

$L109:
jal	stream_seek_long
move	$4,$17

j	$L233
lui	$6,%hi($LC6)

.set	macro
.set	reorder
.end	demux_lmlm4_fill_buffer
.section	.rodata.str1.4
.align	2
$LC8:
.ascii	"Checking for LMLM4 Stream Format\012\000"
.align	2
$LC9:
.ascii	"LMLM4 Stream Format not found\012\000"
.align	2
$LC10:
.ascii	"LMLM4: first=0x%08X\012\000"
.align	2
$LC11:
.ascii	"LMLM4: not mpeg audio\012\000"
.align	2
$LC12:
.ascii	"LMLM4: not layer-2\012\000"
.align	2
$LC13:
.ascii	"LMLM4: invalid audio sampelrate\012\000"
.align	2
$LC14:
.ascii	"LMLM4: first packet is audio, header checks OK!\012\000"
.align	2
$LC15:
.ascii	"LMLM4 Stream Format found\012\000"
.section	.text.lmlm4_check_file,"ax",@progbits
.align	2
.align	5
.ent	lmlm4_check_file
.type	lmlm4_check_file, @function
lmlm4_check_file:
.frame	$sp,56,$31		# vars= 16, regs= 6/0, args= 16, gp= 0
.mask	0x801f0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-56
lui	$6,%hi($LC8)
sw	$18,40($sp)
addiu	$6,$6,%lo($LC8)
move	$18,$4
li	$5,6			# 0x6
li	$4,7			# 0x7
sw	$31,52($sp)
sw	$20,48($sp)
sw	$19,44($sp)
sw	$17,36($sp)
jal	mp_msg
sw	$16,32($sp)

move	$4,$18
jal	getFrame
addiu	$5,$sp,16

li	$3,1			# 0x1
beq	$2,$3,$L238
nop

lw	$4,16($18)
lw	$2,28($4)
andi	$2,$2,0x2
bne	$2,$0,$L280
nop

$L240:
lui	$6,%hi($LC9)
$L287:
addiu	$6,$6,%lo($LC9)
li	$4,7			# 0x7
jal	mp_msg
li	$5,6			# 0x6

move	$2,$0
$L245:
lw	$31,52($sp)
lw	$20,48($sp)
lw	$19,44($sp)
lw	$18,40($sp)
lw	$17,36($sp)
lw	$16,32($sp)
j	$31
addiu	$sp,$sp,56

$L280:
lw	$6,44($4)
lw	$2,36($4)
lw	$7,40($4)
addu	$2,$6,$2
subu	$2,$2,$7
addiu	$5,$2,-8
slt	$3,$5,$6
beq	$3,$0,$L242
subu	$2,$6,$7

subu	$2,$5,$2
bltz	$2,$L242
nop

j	$L240
sw	$2,36($4)

$L238:
lw	$16,16($18)
lw	$3,36($16)
lw	$4,40($16)
sltu	$2,$3,$4
beq	$2,$0,$L246
addiu	$5,$3,1

lw	$2,80($16)
addu	$2,$3,$2
lbu	$3,0($2)
sw	$5,36($16)
sll	$20,$3,8
$L248:
sltu	$2,$5,$4
beq	$2,$0,$L251
nop

lw	$2,80($16)
addu	$2,$5,$2
lbu	$3,0($2)
addiu	$5,$5,1
move	$19,$3
sw	$5,36($16)
$L253:
sltu	$2,$5,$4
beq	$2,$0,$L256
nop

lw	$2,80($16)
addu	$2,$5,$2
lbu	$3,0($2)
addiu	$5,$5,1
move	$17,$3
sw	$5,36($16)
$L258:
sltu	$2,$5,$4
beq	$2,$0,$L261
nop

lw	$2,80($16)
addu	$2,$5,$2
lbu	$3,0($2)
addiu	$5,$5,1
move	$7,$3
sw	$5,36($16)
$L263:
lw	$4,16($18)
or	$2,$19,$20
sll	$2,$2,8
lw	$3,28($4)
or	$2,$2,$17
sll	$2,$2,8
andi	$3,$3,0x2
beq	$3,$0,$L266
or	$16,$2,$7

lw	$6,44($4)
lw	$2,36($4)
lw	$7,40($4)
addu	$2,$6,$2
subu	$2,$2,$7
addiu	$5,$2,-12
slt	$3,$5,$6
beq	$3,$0,$L268
subu	$2,$6,$7

subu	$2,$5,$2
bltz	$2,$L268
nop

sw	$2,36($4)
$L266:
lui	$6,%hi($LC10)
$L288:
li	$4,5			# 0x5
addiu	$6,$6,%lo($LC10)
li	$5,6			# 0x6
jal	mp_msg
move	$7,$16

lw	$4,24($sp)
li	$2,4			# 0x4
beq	$4,$2,$L281
lui	$6,%hi($LC15)

$L289:
addiu	$6,$6,%lo($LC15)
li	$4,7			# 0x7
jal	mp_msg
li	$5,6			# 0x6

lw	$31,52($sp)
lw	$20,48($sp)
lw	$19,44($sp)
lw	$18,40($sp)
lw	$17,36($sp)
lw	$16,32($sp)
li	$2,34			# 0x22
j	$31
addiu	$sp,$sp,56

$L242:
jal	stream_seek_long
nop

j	$L287
lui	$6,%hi($LC9)

$L261:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L282
nop

lw	$3,36($16)
lw	$2,80($16)
addiu	$5,$3,1
addu	$2,$2,$3
lbu	$4,0($2)
sw	$5,36($16)
j	$L263
move	$7,$4

$L256:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L283
nop

lw	$5,36($16)
lw	$2,80($16)
lw	$4,40($16)
addu	$2,$2,$5
lbu	$3,0($2)
addiu	$5,$5,1
move	$17,$3
j	$L258
sw	$5,36($16)

$L251:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L284
nop

lw	$5,36($16)
lw	$2,80($16)
lw	$4,40($16)
addu	$2,$2,$5
lbu	$3,0($2)
addiu	$5,$5,1
move	$19,$3
j	$L253
sw	$5,36($16)

$L246:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L285
nop

lw	$5,36($16)
lw	$2,80($16)
lw	$4,40($16)
addu	$2,$2,$5
lbu	$3,0($2)
addiu	$5,$5,1
sll	$20,$3,8
j	$L248
sw	$5,36($16)

$L281:
li	$3,-2097152			# 0xffffffffffe00000
and	$2,$16,$3
beq	$2,$3,$L273
lui	$6,%hi($LC11)

addiu	$6,$6,%lo($LC11)
li	$4,5			# 0x5
jal	mp_msg
li	$5,6			# 0x6

j	$L245
move	$2,$0

$L268:
jal	stream_seek_long
nop

j	$L288
lui	$6,%hi($LC10)

$L285:
lw	$5,36($16)
lw	$4,40($16)
j	$L248
li	$20,-65536			# 0xffffffffffff0000

$L284:
lw	$5,36($16)
lw	$4,40($16)
j	$L253
li	$19,-256			# 0xffffffffffffff00

$L283:
lw	$5,36($16)
lw	$4,40($16)
j	$L258
li	$17,-256			# 0xffffffffffffff00

$L282:
j	$L263
li	$7,-256			# 0xffffffffffffff00

$L273:
srl	$2,$16,17
andi	$2,$2,0x3
addiu	$3,$4,-2
beq	$2,$3,$L275
lui	$6,%hi($LC12)

addiu	$6,$6,%lo($LC12)
li	$4,5			# 0x5
jal	mp_msg
li	$5,6			# 0x6

j	$L245
move	$2,$0

$L275:
srl	$2,$16,10
andi	$2,$2,0x3
li	$3,3			# 0x3
beq	$2,$3,$L286
lui	$6,%hi($LC14)

addiu	$6,$6,%lo($LC14)
li	$4,5			# 0x5
jal	mp_msg
li	$5,6			# 0x6

j	$L289
lui	$6,%hi($LC15)

$L286:
lui	$6,%hi($LC13)
addiu	$6,$6,%lo($LC13)
li	$4,5			# 0x5
jal	mp_msg
li	$5,6			# 0x6

j	$L245
move	$2,$0

.set	macro
.set	reorder
.end	lmlm4_check_file
.globl	demuxer_desc_lmlm4
.section	.rodata.str1.4
.align	2
$LC16:
.ascii	"LMLM4 MPEG4 Compression Card stream demuxer\000"
.align	2
$LC17:
.ascii	"lmlm4\000"
.align	2
$LC18:
.ascii	"RAW LMLM4\000"
.align	2
$LC19:
.ascii	"Maxim Yevtyushkin\000"
.subsection	-1
.align	2
$LC20:
.ascii	"\000"
.data
.align	2
.type	demuxer_desc_lmlm4, @object
.size	demuxer_desc_lmlm4, 52
demuxer_desc_lmlm4:
.word	$LC16
.word	$LC17
.word	$LC18
.word	$LC19
.word	$LC20
.word	34
.word	0
.word	lmlm4_check_file
.word	demux_lmlm4_fill_buffer
.word	demux_open_lmlm4
.word	demux_close_lmlm4
.word	0
.word	0
.local	frames
.comm	frames,4,4
.local	video
.comm	video,4,4
.ident	"GCC: (GNU) 4.1.2"