mjpegdec.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 4,717 行 · 第 1/5 页

.file	1 "mjpegdec.c"
.section .mdebug.abi32
.previous
.section	.text.ff_mjpeg_decode_end,"ax",@progbits
.align	2
.align	5
.globl	ff_mjpeg_decode_end
.ent	ff_mjpeg_decode_end
.type	ff_mjpeg_decode_end, @function
ff_mjpeg_decode_end:
.frame	$sp,48,$31		# vars= 0, regs= 7/0, args= 16, gp= 0
.mask	0x803f0000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-48
sw	$31,40($sp)
sw	$21,36($sp)
sw	$20,32($sp)
sw	$19,28($sp)
sw	$18,24($sp)
sw	$17,20($sp)
sw	$16,16($sp)
lw	$16,136($4)
move	$19,$0
lw	$4,28($16)
jal	av_free
addiu	$18,$16,560

lw	$4,1176($16)
addiu	$20,$16,544
jal	av_free
addiu	$17,$16,592

li	$21,128			# 0x80
addiu	$16,$16,576
$L2:
jal	free_vlc
addu	$4,$19,$20

jal	free_vlc
move	$4,$18

jal	free_vlc
move	$4,$16

addiu	$19,$19,64
jal	free_vlc
move	$4,$17

addiu	$18,$18,64
addiu	$16,$16,64
bne	$19,$21,$L2
addiu	$17,$17,64

lw	$31,40($sp)
lw	$21,36($sp)
lw	$20,32($sp)
lw	$19,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$0
j	$31
addiu	$sp,$sp,48

.set	macro
.set	reorder
.end	ff_mjpeg_decode_end
.section	.rodata.str1.4,"aMS",@progbits,1
.align	2
$LC0:
.ascii	"dqt: 16bit precision\012\000"
.align	2
$LC1:
.ascii	"index=%d\012\000"
.align	2
$LC2:
.ascii	"qscale[%d]: %d\012\000"
.section	.text.ff_mjpeg_decode_dqt,"ax",@progbits
.align	2
.align	5
.globl	ff_mjpeg_decode_dqt
.ent	ff_mjpeg_decode_dqt
.type	ff_mjpeg_decode_dqt, @function
ff_mjpeg_decode_dqt:
.frame	$sp,48,$31		# vars= 0, regs= 5/0, args= 24, gp= 0
.mask	0x800f0000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-48
sw	$19,36($sp)
sw	$17,28($sp)
sw	$16,24($sp)
sw	$31,40($sp)
sw	$18,32($sp)
addiu	$16,$4,4
lw	$8,8($16)
lw	$2,4($4)
move	$17,$4
sra	$4,$8,3
addu	$4,$4,$2
lbu	$3,0($4)
lbu	$5,1($4)
lbu	$6,3($4)
lbu	$2,2($4)
sll	$3,$3,24
sll	$5,$5,16
or	$3,$3,$5
or	$3,$3,$6
sll	$2,$2,8
andi	$4,$8,0x7
or	$2,$2,$3
sll	$2,$2,$4
srl	$2,$2,16
addiu	$19,$2,-2
addiu	$8,$8,16
slt	$2,$19,65
bne	$2,$0,$L9
sw	$8,8($16)

$L22:
lw	$7,0($16)
sra	$4,$8,3
addu	$4,$4,$7
lbu	$3,0($4)
lbu	$5,1($4)
lbu	$6,3($4)
lbu	$2,2($4)
sll	$3,$3,24
sll	$5,$5,16
or	$3,$3,$5
or	$3,$3,$6
sll	$2,$2,8
andi	$4,$8,0x7
or	$2,$2,$3
sll	$2,$2,$4
move	$9,$8
srl	$2,$2,28
addiu	$8,$8,4
bne	$2,$0,$L24
sw	$8,8($16)

sra	$4,$8,3
addu	$4,$4,$7
lbu	$3,0($4)
lbu	$5,1($4)
lbu	$6,3($4)
lbu	$2,2($4)
sll	$3,$3,24
sll	$5,$5,16
or	$3,$3,$5
or	$3,$3,$6
sll	$2,$2,8
andi	$4,$8,0x7
or	$2,$2,$3
sll	$2,$2,$4
srl	$18,$2,28
addiu	$8,$9,8
slt	$2,$18,4
beq	$2,$0,$L25
sw	$8,8($16)

lw	$4,0($17)
lui	$6,%hi($LC1)
addiu	$6,$6,%lo($LC1)
li	$5,2			# 0x2
jal	av_log
move	$7,$18

lw	$8,8($16)
lw	$11,0($16)
move	$9,$0
sll	$10,$18,6
li	$12,64			# 0x40
$L16:
sra	$3,$8,3
addu	$3,$3,$11
lbu	$2,0($3)
lbu	$5,1($3)
lbu	$7,3($3)
lbu	$4,2($3)
sll	$5,$5,16
addu	$6,$17,$9
sll	$2,$2,24
or	$2,$2,$5
lbu	$3,1316($6)
or	$2,$2,$7
sll	$4,$4,8
or	$4,$4,$2
addu	$3,$10,$3
andi	$2,$8,0x7
sll	$4,$4,$2
sll	$3,$3,1
addiu	$5,$8,8
srl	$4,$4,24
addu	$3,$3,$17
addiu	$9,$9,1
move	$8,$5
sh	$4,32($3)
bne	$9,$12,$L16
sw	$5,8($16)

lbu	$2,1324($17)
lbu	$3,1317($17)
addu	$2,$10,$2
addu	$3,$10,$3
sll	$2,$2,1
sll	$3,$3,1
addu	$2,$2,$17
addu	$3,$3,$17
lh	$8,32($2)
lh	$5,32($3)
sll	$2,$18,2
slt	$3,$8,$5
movn	$8,$5,$3
sra	$8,$8,1
addu	$2,$2,$17
lw	$4,0($17)
lui	$6,%hi($LC2)
sw	$8,672($2)
addiu	$6,$6,%lo($LC2)
move	$7,$18
addiu	$19,$19,-65
li	$5,2			# 0x2
jal	av_log
sw	$8,16($sp)

slt	$2,$19,65
bne	$2,$0,$L26
lw	$31,40($sp)

j	$L22
lw	$8,8($16)

$L9:
lw	$31,40($sp)
$L26:
lw	$19,36($sp)
lw	$18,32($sp)
lw	$17,28($sp)
lw	$16,24($sp)
move	$2,$0
j	$31
addiu	$sp,$sp,48

$L24:
lw	$4,0($17)
lui	$6,%hi($LC0)
addiu	$6,$6,%lo($LC0)
jal	av_log
move	$5,$0

lw	$31,40($sp)
lw	$19,36($sp)
lw	$18,32($sp)
lw	$17,28($sp)
lw	$16,24($sp)
li	$2,-1			# 0xffffffffffffffff
j	$31
addiu	$sp,$sp,48

$L25:
lw	$31,40($sp)
lw	$19,36($sp)
lw	$18,32($sp)
lw	$17,28($sp)
lw	$16,24($sp)
li	$2,-1			# 0xffffffffffffffff
j	$31
addiu	$sp,$sp,48

.set	macro
.set	reorder
.end	ff_mjpeg_decode_dqt
.section	.rodata.str1.4
.align	2
$LC3:
.ascii	"only 8 bits/component accepted\012\000"
.align	2
$LC4:
.ascii	"sof0: picture: %dx%d\012\000"
.align	2
$LC5:
.ascii	"only <= 8 bits/component or 16-bit gray accepted for JPE"
.ascii	"G-LS\012\000"
.align	2
$LC6:
.ascii	"component %d %d:%d id: %d quant:%d\012\000"
.align	2
$LC7:
.ascii	"Subsampling in JPEG-LS is not supported.\012\000"
.align	2
$LC8:
.ascii	"pix fmt id %x\012\000"
.align	2
$LC9:
.ascii	"Unhandled pixel format 0x%x\012\000"
.align	2
$LC10:
.ascii	"get_buffer() failed\012\000"
.align	2
$LC11:
.ascii	"decode_sof0: error, len(%d) mismatch\012\000"
.section	.text.ff_mjpeg_decode_sof,"ax",@progbits
.align	2
.align	5
.globl	ff_mjpeg_decode_sof
.ent	ff_mjpeg_decode_sof
.type	ff_mjpeg_decode_sof, @function
ff_mjpeg_decode_sof:
.frame	$sp,88,$31		# vars= 16, regs= 10/0, args= 32, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
addiu	$sp,$sp,-88
sw	$18,56($sp)
sw	$16,48($sp)
sw	$31,84($sp)
sw	$fp,80($sp)
sw	$23,76($sp)
sw	$22,72($sp)
sw	$21,68($sp)
sw	$20,64($sp)
sw	$19,60($sp)
sw	$17,52($sp)
addiu	$16,$4,4
lw	$21,8($16)
lw	$3,4($4)
addiu	$6,$21,16
sra	$2,$21,3
addu	$2,$2,$3
sra	$5,$6,3
addu	$5,$5,$3
lbu	$3,3($2)
move	$18,$4
sw	$3,40($sp)
lbu	$4,1($2)
lbu	$fp,0($2)
sw	$4,32($sp)
lbu	$2,2($2)
sw	$6,8($16)
sw	$2,36($sp)
lbu	$3,0($5)
lbu	$4,1($5)
lbu	$7,3($5)
lbu	$2,2($5)
sll	$4,$4,16
sll	$3,$3,24
or	$3,$3,$4
or	$3,$3,$7
addiu	$4,$21,24
sll	$2,$2,8
sw	$4,8($16)
or	$2,$2,$3
andi	$6,$6,0x7
sll	$2,$2,$6
lw	$3,724($18)
srl	$4,$2,24
.set	noreorder
.set	nomacro
beq	$3,$0,$L28
sw	$4,728($18)
.set	macro
.set	reorder

li	$2,9			# 0x9
sw	$2,728($18)
$L31:
lw	$2,704($18)
.set	noreorder
.set	nomacro
beq	$2,$0,$L184
lui	$6,%hi($LC3)
.set	macro
.set	reorder

lw	$9,8($16)
$L201:
lw	$3,0($16)
addiu	$10,$9,16
sra	$2,$9,3
addu	$2,$2,$3
sra	$5,$10,3
addu	$5,$5,$3
lbu	$12,3($2)
lbu	$7,2($2)
lbu	$4,0($2)
lbu	$8,1($2)
sw	$10,8($16)
lbu	$2,0($5)
lbu	$6,1($5)
lbu	$11,3($5)
lbu	$3,2($5)
sll	$4,$4,24
sll	$8,$8,16
sll	$2,$2,24
sll	$6,$6,16
addiu	$5,$9,32
or	$4,$4,$8
or	$2,$2,$6
or	$2,$2,$11
or	$4,$4,$12
sw	$5,8($16)
sll	$7,$7,8
sll	$3,$3,8
or	$3,$3,$2
or	$7,$7,$4
andi	$10,$10,0x7
andi	$9,$9,0x7
lw	$2,696($18)
sll	$7,$7,$9
sll	$3,$3,$10
srl	$19,$7,16
.set	noreorder
.set	nomacro
bne	$2,$0,$L185
srl	$20,$3,16
.set	macro
.set	reorder

$L36:
lw	$4,0($18)
lui	$6,%hi($LC4)
addiu	$6,$6,%lo($LC4)
li	$5,2			# 0x2
move	$7,$20
.set	noreorder
.set	nomacro
jal	av_log
sw	$19,16($sp)
.set	macro
.set	reorder

lw	$4,0($18)
move	$5,$20
.set	noreorder
.set	nomacro
jal	avcodec_check_dimensions
move	$6,$19
.set	macro
.set	reorder

beq	$2,$0,$L186
$L40:
li	$2,-1			# 0xffffffffffffffff
$L35:
lw	$31,84($sp)
lw	$fp,80($sp)
lw	$23,76($sp)
lw	$22,72($sp)
lw	$21,68($sp)
lw	$20,64($sp)
lw	$19,60($sp)
lw	$18,56($sp)
lw	$17,52($sp)
lw	$16,48($sp)
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,88
.set	macro
.set	reorder

$L28:
li	$2,9			# 0x9
.set	noreorder
.set	nomacro
beq	$4,$2,$L187
li	$2,8			# 0x8
.set	macro
.set	reorder

lw	$3,728($18)
bne	$3,$2,$L31
.set	noreorder
.set	nomacro
j	$L201
lw	$9,8($16)
.set	macro
.set	reorder

$L185:
lw	$2,756($18)
.set	noreorder
.set	nomacro
bne	$20,$2,$L36
addiu	$2,$19,1
.set	macro
.set	reorder

lw	$3,760($18)
lw	$4,0($18)
xor	$2,$3,$2
lui	$6,%hi($LC4)
movz	$19,$3,$2
addiu	$6,$6,%lo($LC4)
li	$5,2			# 0x2
move	$7,$20
.set	noreorder
.set	nomacro
jal	av_log
sw	$19,16($sp)
.set	macro
.set	reorder

lw	$4,0($18)
move	$5,$20
.set	noreorder
.set	nomacro
jal	avcodec_check_dimensions
move	$6,$19
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
bne	$2,$0,$L35
li	$2,-1			# 0xffffffffffffffff
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
j	$L202
lw	$6,8($16)
.set	macro
.set	reorder

$L187:
li	$2,1			# 0x1
lw	$3,728($18)
sw	$2,720($18)
li	$2,8			# 0x8
bne	$3,$2,$L31
.set	noreorder
.set	nomacro
j	$L201
lw	$9,8($16)
.set	macro
.set	reorder

$L186:
lw	$6,8($16)
$L202:
lw	$8,0($16)
sra	$4,$6,3
addu	$4,$4,$8
lbu	$3,0($4)
lbu	$5,1($4)
lbu	$7,3($4)
lbu	$2,2($4)
sll	$3,$3,24
sll	$5,$5,16
or	$3,$3,$5
or	$3,$3,$7
sll	$2,$2,8
or	$2,$2,$3
andi	$4,$6,0x7
sll	$2,$2,$4
srl	$23,$2,24
addiu	$3,$23,-1
addiu	$6,$6,8
sltu	$3,$3,4
.set	noreorder
.set	nomacro
beq	$3,$0,$L40
sw	$6,8($16)
.set	macro
.set	reorder

lw	$3,708($18)
.set	noreorder
.set	nomacro
beq	$3,$0,$L205
li	$4,1			# 0x1
.set	macro
.set	reorder

lw	$2,728($18)
slt	$2,$2,9
bne	$2,$0,$L205
li	$2,1			# 0x1
bne	$23,$2,$L188
$L205:
li	$2,1			# 0x1
sw	$2,920($18)
sw	$4,924($18)
.set	noreorder
.set	nomacro
blez	$23,$L47
sw	$23,772($18)
.set	macro
.set	reorder

move	$17,$18
.set	noreorder
.set	nomacro
j	$L49
move	$22,$0
.set	macro
.set	reorder

$L190:
lw	$2,792($17)
lw	$3,808($17)
lw	$8,776($17)
lw	$4,0($18)
lui	$6,%hi($LC6)
move	$7,$22
addiu	$6,$6,%lo($LC6)
li	$5,2			# 0x2
addiu	$22,$22,1
sw	$2,16($sp)
sw	$3,20($sp)
sw	$8,24($sp)
sw	$9,28($sp)
.set	noreorder
.set	nomacro
jal	av_log
addiu	$17,$17,4
.set	macro
.set	reorder

beq	$23,$22,$L189
lw	$8,0($16)
$L49:
lw	$6,8($16)
sra	$4,$6,3
addu	$4,$4,$8
lbu	$3,0($4)
lbu	$5,1($4)
lbu	$7,3($4)
lbu	$2,2($4)
sll	$5,$5,16
sll	$3,$3,24
or	$3,$3,$5
or	$3,$3,$7
sll	$2,$2,8
andi	$4,$6,0x7
or	$2,$2,$3
sll	$2,$2,$4
srl	$2,$2,24
addiu	$6,$6,8
addiu	$2,$2,-1
sw	$6,8($16)
sw	$2,776($17)
lw	$6,8($16)
sra	$4,$6,3
addu	$4,$4,$8
lbu	$3,0($4)
lbu	$5,1($4)
lbu	$7,3($4)
lbu	$2,2($4)
sll	$5,$5,16
sll	$3,$3,24
or	$3,$3,$5
or	$3,$3,$7
sll	$2,$2,8
andi	$4,$6,0x7
or	$2,$2,$3
sll	$2,$2,$4
srl	$2,$2,28
addiu	$6,$6,4
sw	$6,8($16)
sw	$2,792($17)
lw	$6,8($16)
sra	$4,$6,3
addu	$4,$4,$8
lbu	$3,0($4)
lbu	$5,1($4)
lbu	$7,3($4)
lbu	$2,2($4)
sll	$3,$3,24
sll	$5,$5,16
addiu	$4,$6,4
or	$3,$3,$5
sw	$4,8($16)
or	$3,$3,$7
sll	$2,$2,8
or	$2,$2,$3
andi	$6,$6,0x7
lw	$4,792($17)
lw	$3,920($18)
sll	$2,$2,$6
srl	$2,$2,28
slt	$3,$3,$4
.set	noreorder
.set	nomacro
beq	$3,$0,$L50
sw	$2,808($17)
.set	macro
.set	reorder

sw	$4,920($18)
$L50:
lw	$3,808($17)
lw	$2,924($18)
slt	$2,$2,$3
beq	$2,$0,$L52
sw	$3,924($18)
$L52:
lw	$6,8($16)
sra	$4,$6,3
addu	$4,$4,$8
lbu	$3,0($4)
lbu	$5,1($4)
lbu	$7,3($4)
lbu	$2,2($4)
sll	$3,$3,24
sll	$5,$5,16
or	$3,$3,$5
or	$3,$3,$7
sll	$2,$2,8
andi	$4,$6,0x7
or	$2,$2,$3
sll	$2,$2,$4
srl	$9,$2,24
addiu	$6,$6,8
slt	$2,$9,4
sw	$6,8($16)
.set	noreorder
.set	nomacro
bne	$2,$0,$L190
sw	$9,928($17)
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
j	$L35
li	$2,-1			# 0xffffffffffffffff
.set	macro
.set	reorder

$L184:
lw	$4,0($18)
addiu	$6,$6,%lo($LC3)
.set	noreorder
.set	nomacro
jal	av_log
move	$5,$0
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
j	$L35
li	$2,-1			# 0xffffffffffffffff
.set	macro
.set	reorder

$L189:
lw	$3,708($18)
$L47:
beq	$3,$0,$L164
lw	$2,920($18)
slt	$2,$2,2
beq	$2,$0,$L57
lw	$4,924($18)
slt	$2,$4,2
bne	$2,$0,$L55
$L57:
lw	$4,0($18)
lui	$6,%hi($LC7)
addiu	$6,$6,%lo($LC7)
.set	noreorder
.set	nomacro
jal	av_log
move	$5,$0
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
j	$L35
li	$2,-1			# 0xffffffffffffffff
.set	macro
.set	reorder

$L164:
lw	$4,924($18)
$L55:
li	$2,1			# 0x1
beq	$4,$2,$L191
$L59:
lw	$2,756($18)
bne	$20,$2,$L63
lw	$2,760($18)
beq	$19,$2,$L65
$L63:
.set	noreorder
.set	nomacro
jal	av_freep
addiu	$4,$18,1176
.set	macro
.set	reorder

lw	$2,692($18)
sw	$20,756($18)
sw	$19,760($18)
.set	noreorder
.set	nomacro
beq	$2,$0,$L66
sw	$0,696($18)
.set	macro
.set	reorder

lw	$3,688($18)
.set	noreorder
.set	nomacro
beq	$3,$0,$L66
sll	$2,$3,1
.set	macro
.set	reorder

addu	$2,$2,$3
addiu	$4,$2,3
slt	$3,$2,0
movn	$2,$4,$3
sra	$2,$2,2
slt	$2,$19,$2
.set	noreorder
.set	nomacro
beq	$2,$0,$L66
li	$3,1			# 0x1
.set	macro
.set	reorder

lw	$4,4576($18)
sltu	$2,$4,1
sw	$3,1124($18)
sw	$2,1128($18)
sw	$3,696($18)
sw	$4,700($18)
sll	$19,$19,1
$L66:
lw	$4,0($18)
move	$5,$20
.set	noreorder
.set	nomacro
jal	avcodec_set_dimensions
move	$6,$19
.set	macro
.set	reorder

lw	$2,756($18)
addiu	$4,$2,15
slt	$3,$4,0
addiu	$2,$2,30
movn	$4,$2,$3
.set	noreorder
.set	nomacro
jal	av_mallocz
sra	$4,$4,4
.set	macro
.set	reorder

sw	$2,1176($18)
sw	$0,692($18)
$L65:
lw	$2,696($18)
beq	$2,$0,$L72
lw	$2,4576($18)
lw	$3,700($18)
sltu	$2,$2,1
.set	noreorder
.set	nomacro
beq	$3,$2,$L35
move	$2,$0
.set	macro
.set	reorder

$L72:
lw	$3,792($18)
lw	$5,808($18)
lw	$2,796($18)
lw	$4,812($18)
lw	$6,800($18)
lw	$7,816($18)
sll	$5,$5,16
sll	$4,$4,8
sll	$3,$3,20
sll	$2,$2,12
or	$3,$3,$5
or	$2,$2,$4
sll	$6,$6,4
or	$2,$2,$7
or	$3,$3,$6
or	$16,$3,$2
lw	$4,0($18)
lui	$6,%hi($LC8)
addiu	$6,$6,%lo($LC8)
li	$5,2			# 0x2
.set	noreorder
.set	nomacro
jal	av_log
move	$7,$16
.set	macro
.set	reorder

li	$2,2162688			# 0x210000
ori	$2,$2,0x1111
.set	noreorder
.set	nomacro
beq	$16,$2,$L79
slt	$2,$2,$16
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
bne	$2,$0,$L81
li	$3,2228224			# 0x220000
.set	macro
.set	reorder

li	$3,1114112			# 0x110000
ori	$2,$3,0x1111
.set	noreorder
.set	nomacro
beq	$16,$2,$L77
li	$2,1179648			# 0x120000
.set	macro
.set	reorder

ori	$2,$2,0x1111
.set	noreorder
.set	nomacro
beq	$16,$2,$L78
li	$4,38			# 0x26
.set	macro
.set	reorder

beq	$16,$3,$L76
$L75:
lw	$4,0($18)
lui	$6,%hi($LC9)
addiu	$6,$6,%lo($LC9)
move	$7,$16
.set	noreorder
.set	nomacro