mpegvideo_parser.mid

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」· MID 代码 · 共 424 行

	.file	1 "mpegvideo_parser.c"
	.section .mdebug.abi32
	.previous
	.section	.text.mpegvideo_split,"ax",@progbits
	.align	2
	.align	5
	.ent	mpegvideo_split
	.type	mpegvideo_split, @function
mpegvideo_split:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	blez	$6,$L2
	move	$7,$0

	li	$3,-1			# 0xffffffffffffffff
	li	$8,435			# 0x1b3
	li	$9,437			# 0x1b5
$L4:
	addu	$2,$5,$7
	lbu	$4,0($2)
	sll	$3,$3,8
	or	$3,$3,$4
	beq	$3,$8,$L5
	nop

	beq	$3,$9,$L5
	sltu	$2,$3,512

	beq	$2,$0,$L5
	sltu	$4,$3,256

	beq	$4,$0,$L14
	nop

$L5:
	addiu	$7,$7,1
	bne	$6,$7,$L4
	nop

$L2:
	j	$31
	move	$2,$0

$L14:
	j	$31
	addiu	$2,$7,-3

	.set	macro
	.set	reorder
	.end	mpegvideo_split
	.section	.text.mpegvideo_parse,"ax",@progbits
	.align	2
	.align	5
	.ent	mpegvideo_parse
	.type	mpegvideo_parse, @function
mpegvideo_parse:
	.frame	$sp,64,$31		# vars= 8, regs= 10/0, args= 16, gp= 0
	.mask	0xc0ff0000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-64
	sw	$22,48($sp)
	sw	$21,44($sp)
	sw	$31,60($sp)
	sw	$fp,56($sp)
	sw	$23,52($sp)
	sw	$20,40($sp)
	sw	$19,36($sp)
	sw	$18,32($sp)
	sw	$17,28($sp)
	sw	$16,24($sp)
	lw	$2,176($4)
	move	$22,$4
	andi	$2,$2,0x1
	move	$21,$5
	sw	$6,72($sp)
	sw	$7,76($sp)
	beq	$2,$0,$L16
	lw	$19,0($4)

	lw	$23,84($sp)
	move	$4,$23
$L18:
	lw	$3,80($sp)
	sw	$0,36($22)
	addu	$18,$3,$4
	sltu	$2,$3,$18
	beq	$2,$0,$L21
	move	$17,$3

	addiu	$fp,$sp,16
	j	$L23
	li	$20,-1			# 0xffffffffffffffff

$L52:
	beq	$3,$2,$L51
	slt	$2,$4,2

	addiu	$2,$3,-257
$L55:
	sltu	$2,$2,175
	bne	$2,$0,$L54
	lw	$4,84($sp)

$L29:
	sltu	$2,$17,$18
$L56:
	beq	$2,$0,$L54
	lw	$4,84($sp)

$L23:
	move	$4,$17
	move	$5,$18
	move	$6,$fp
	jal	ff_find_start_code
	sw	$20,16($sp)

	lw	$3,16($sp)
	move	$17,$2
	subu	$4,$18,$2
	li	$2,435			# 0x1b3
	beq	$3,$2,$L26
	sltu	$2,$3,436

	bne	$2,$0,$L52
	li	$2,256			# 0x100

	li	$2,437			# 0x1b5
	beq	$3,$2,$L27
	nop

	bne	$3,$20,$L55
	addiu	$2,$3,-257

	lw	$4,84($sp)
$L54:
	lw	$3,80($sp)
$L21:
	lw	$2,72($sp)
	sw	$3,0($2)
	lw	$2,76($sp)
	sw	$4,0($2)
$L20:
	move	$2,$23
	lw	$31,60($sp)
	lw	$fp,56($sp)
	lw	$23,52($sp)
	lw	$22,48($sp)
	lw	$21,44($sp)
	lw	$20,40($sp)
	lw	$19,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	j	$31
	addiu	$sp,$sp,64

$L26:
	slt	$2,$4,7
	bne	$2,$0,$L56
	sltu	$2,$17,$18

	lbu	$5,0($17)
	lbu	$2,1($17)
	sll	$5,$5,4
	srl	$2,$2,4
	or	$5,$5,$2
	sw	$5,44($19)
	lbu	$6,1($17)
	lbu	$2,2($17)
	andi	$6,$6,0xf
	sll	$6,$6,8
	or	$6,$6,$2
	move	$4,$21
	jal	avcodec_set_dimensions
	sw	$6,48($19)

	lbu	$3,3($17)
	lui	$2,%hi(ff_frame_rate_tab)
	andi	$3,$3,0xf
	addiu	$2,$2,%lo(ff_frame_rate_tab)
	sll	$3,$3,3
	addu	$3,$3,$2
	lw	$4,4($3)
	lw	$5,0($3)
	sw	$4,32($21)
	sw	$5,36($21)
	sw	$4,32($19)
	sw	$5,36($19)
	lbu	$2,4($17)
	lbu	$3,5($17)
	lbu	$4,6($17)
	sll	$3,$3,2
	sll	$2,$2,10
	or	$2,$2,$3
	srl	$4,$4,6
	or	$2,$2,$4
	sll	$5,$2,6
	sll	$2,$2,4
	addu	$2,$2,$5
	sll	$3,$2,2
	li	$4,1			# 0x1
	addu	$2,$2,$3
	sw	$2,4($21)
	sw	$4,16($21)
	j	$L29
	sw	$4,228($21)

$L27:
	blez	$4,$L29
	li	$5,1			# 0x1

	lbu	$2,0($17)
	srl	$3,$2,4
	beq	$3,$5,$L33
	li	$2,8			# 0x8

	bne	$3,$2,$L56
	sltu	$2,$17,$18

	slt	$2,$4,5
	bne	$2,$0,$L56
	sltu	$2,$17,$18

	lbu	$4,3($17)
	lbu	$3,2($17)
	andi	$2,$4,0x2
	beq	$2,$0,$L37
	lbu	$6,4($17)

	lw	$2,40($19)
	beq	$2,$0,$L39
	andi	$2,$6,0x80

	andi	$2,$4,0x80
	beq	$2,$0,$L41
	li	$2,2			# 0x2

	li	$2,4			# 0x4
	sw	$2,36($22)
$L37:
	andi	$3,$3,0x3
	li	$2,3			# 0x3
	beq	$3,$2,$L56
	sltu	$2,$17,$18

	j	$L56
	sw	$20,36($22)

$L51:
	bne	$2,$0,$L56
	sltu	$2,$17,$18

	lbu	$2,1($17)
	srl	$2,$2,3
	andi	$2,$2,0x7
	j	$L29
	sw	$2,32($22)

$L16:
	lui	$3,%hi(ff_mpeg1_find_frame_end_funcp)
	lw	$6,84($sp)
	lw	$5,80($sp)
	lw	$2,%lo(ff_mpeg1_find_frame_end_funcp)($3)
	jal	$2
	move	$4,$19

	move	$5,$2
	move	$4,$19
	addiu	$6,$sp,80
	addiu	$7,$sp,84
	jal	ff_combine_frame
	move	$23,$2

	bltz	$2,$L53
	lw	$4,84($sp)

	j	$L18
	lw	$19,0($22)

$L33:
	slt	$2,$4,6
	bne	$2,$0,$L56
	sltu	$2,$17,$18

	lbu	$4,1($17)
	lbu	$5,2($17)
	andi	$3,$4,0x8
	lbu	$16,5($17)
	lbu	$7,3($17)
	sw	$3,40($19)
	lbu	$2,5($17)
	andi	$4,$4,0x1
	srl	$2,$2,7
	sltu	$2,$2,1
	sw	$2,268($21)
	srl	$3,$5,7
	andi	$2,$5,0x1f
	sll	$4,$4,1
	lw	$6,48($19)
	or	$4,$4,$3
	srl	$7,$7,1
	lw	$3,44($19)
	sll	$2,$2,7
	sll	$5,$5,7
	or	$2,$2,$7
	sll	$4,$4,12
	andi	$5,$5,0x3000
	or	$3,$3,$4
	or	$6,$6,$5
	sll	$4,$2,24
	sll	$2,$2,22
	sw	$3,44($19)
	sw	$6,48($19)
	addu	$2,$2,$4
	lw	$3,4($21)
	sll	$4,$2,2
	addu	$2,$2,$4
	addu	$3,$3,$2
	sw	$3,4($21)
	lw	$5,44($19)
	lw	$6,48($19)
	jal	avcodec_set_dimensions
	move	$4,$21

	srl	$2,$16,5
	lw	$3,36($19)
	lw	$4,32($19)
	andi	$2,$2,0x3
	andi	$16,$16,0x1f
	addiu	$2,$2,1
	addiu	$16,$16,1
	mul	$3,$3,$2
	mul	$4,$4,$16
	li	$2,2			# 0x2
	sw	$3,36($21)
	sw	$4,32($21)
	sw	$2,16($21)
	j	$L29
	sw	$2,228($21)

$L53:
	lw	$2,72($sp)
	lw	$23,84($sp)
	sw	$0,0($2)
	lw	$2,76($sp)
	j	$L20
	sw	$0,0($2)

$L39:
	beq	$2,$0,$L37
	nop

	j	$L37
	sw	$5,36($22)

$L41:
	j	$L37
	sw	$2,36($22)

	.set	macro
	.set	reorder
	.end	mpegvideo_parse
	.globl	ff_frame_rate_tab
	.rdata
	.align	2
	.type	ff_frame_rate_tab, @object
	.size	ff_frame_rate_tab, 120
ff_frame_rate_tab:
	.word	0
	.word	0
	.word	24000
	.word	1001
	.word	24
	.word	1
	.word	25
	.word	1
	.word	30000
	.word	1001
	.word	30
	.word	1
	.word	50
	.word	1
	.word	60000
	.word	1001
	.word	60
	.word	1
	.word	15
	.word	1
	.word	5
	.word	1
	.word	10
	.word	1
	.word	12
	.word	1
	.word	15
	.word	1
	.word	0
	.word	0
	.globl	mpegvideo_parser
	.data
	.align	2
	.type	mpegvideo_parser, @object
	.size	mpegvideo_parser, 44
mpegvideo_parser:
	.word	1
	.word	2
	.space	12
	.word	60
	.word	0
	.word	mpegvideo_parse
	.word	ff_parse1_close
	.word	mpegvideo_split
	.space	4

	.comm	ff_mpeg1_find_frame_end_funcp,4,4
	.ident	"GCC: (GNU) 4.1.2"