parse_es.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 438 行

	.file	1 "parse_es.c"
	.section .mdebug.abi32
	.previous
	.section	.text.read_video_packet,"ax",@progbits
	.align	2
	.align	5
	.globl	read_video_packet
	.ent	read_video_packet
	.type	read_video_packet, @function
read_video_packet:
	.frame	$sp,56,$31		# vars= 8, regs= 6/0, args= 24, gp= 0
	.mask	0x801f0000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-56
	sw	$18,40($sp)
	sw	$16,32($sp)
	sw	$31,52($sp)
	sw	$20,48($sp)
	sw	$19,44($sp)
	sw	$17,36($sp)
	lui	$16,%hi(videobuf_len)
	lw	$17,%lo(videobuf_len)($16)
	li	$8,1048576			# 0x100000
	subu	$2,$8,$17
	slt	$2,$2,5
	beq	$2,$0,$L2
	move	$18,$4

	move	$4,$0
	lw	$31,52($sp)
	lw	$20,48($sp)
	lw	$19,44($sp)
	lw	$18,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	move	$2,$4
	j	$31
	addiu	$sp,$sp,56

$L2:
	lui	$7,%hi(videobuffer)
	lw	$2,%lo(videobuffer)($7)
	lui	$19,%hi(next_nal)
	addu	$2,$2,$17
	sb	$0,0($2)
	lw	$3,%lo(videobuf_len)($16)
	lw	$2,%lo(videobuffer)($7)
	move	$20,$19
	addu	$2,$2,$3
	sb	$0,1($2)
	lw	$5,%lo(videobuf_len)($16)
	lw	$2,%lo(videobuffer)($7)
	li	$3,1
	addu	$2,$2,$5
	sb	$3,2($2)
	lw	$6,%lo(videobuf_len)($16)
	lw	$2,%lo(videobuffer)($7)
	lw	$5,%lo(next_nal)($19)
	addu	$2,$2,$6
	sb	$5,3($2)
	lw	$3,%lo(videobuf_len)($16)
	lw	$5,%lo(videobuffer)($7)
	addiu	$3,$3,4
	subu	$6,$8,$3
	addu	$5,$3,$5
	li	$2,256			# 0x100
	addiu	$7,$sp,24
	sw	$2,16($sp)
	jal	demux_pattern_3
	sw	$3,%lo(videobuf_len)($16)

	lw	$4,%lo(videobuf_len)($16)
	lw	$3,24($sp)
	addu	$3,$4,$3
	beq	$2,$0,$L5
	sw	$3,%lo(videobuf_len)($16)

	lw	$5,0($18)
	lw	$2,4($18)
	addiu	$3,$3,-3
	slt	$2,$5,$2
	beq	$2,$0,$L7
	sw	$3,%lo(videobuf_len)($16)

	lw	$2,8($18)
	addiu	$3,$5,1
	addu	$2,$2,$5
	lbu	$2,0($2)
	sw	$3,0($18)
$L9:
	bltz	$2,$L5
	sw	$2,%lo(next_nal)($20)

	lw	$2,%lo(videobuf_len)($16)
	li	$3,4			# 0x4
	subu	$4,$2,$17
	lui	$2,%hi(videobuf_code_len)
	sw	$3,%lo(videobuf_code_len)($2)
	lw	$31,52($sp)
	lw	$20,48($sp)
	lw	$19,44($sp)
	lw	$18,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	move	$2,$4
	j	$31
	addiu	$sp,$sp,56

$L7:
	jal	ds_fill_buffer
	move	$4,$18

	bne	$2,$0,$L15
	nop

	li	$2,-1			# 0xffffffffffffffff
	sw	$2,%lo(next_nal)($19)
$L5:
	lw	$2,%lo(videobuf_len)($16)
	li	$3,-1			# 0xffffffffffffffff
	subu	$4,$2,$17
	lui	$2,%hi(videobuf_code_len)
	sw	$0,%lo(videobuf_code_len)($2)
	sw	$3,%lo(next_nal)($20)
	lw	$31,52($sp)
	lw	$20,48($sp)
	lw	$19,44($sp)
	lw	$18,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	move	$2,$4
	j	$31
	addiu	$sp,$sp,56

$L15:
	lw	$2,0($18)
	lw	$3,8($18)
	addiu	$4,$2,1
	addu	$3,$3,$2
	lbu	$2,0($3)
	j	$L9
	sw	$4,0($18)

	.set	macro
	.set	reorder
	.end	read_video_packet
	.section	.rodata.str1.4,"aMS",@progbits,1
	.align	2
$LC0:
	.ascii	"parse_es: could not sync video stream!\012\000"
	.section	.text.sync_video_packet,"ax",@progbits
	.align	2
	.align	5
	.globl	sync_video_packet
	.ent	sync_video_packet
	.type	sync_video_packet, @function
sync_video_packet:
	.frame	$sp,48,$31		# vars= 8, regs= 3/0, args= 24, gp= 0
	.mask	0x80030000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-48
	sw	$17,36($sp)
	sw	$16,32($sp)
	sw	$31,40($sp)
	lui	$17,%hi(videobuf_code_len)
	lw	$2,%lo(videobuf_code_len)($17)
	beq	$2,$0,$L33
	move	$16,$4

	lui	$4,%hi(next_nal)
$L17:
	lw	$2,%lo(next_nal)($4)
	lw	$31,40($sp)
	ori	$3,$2,0x100
	lw	$17,36($sp)
	lw	$16,32($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,48

$L33:
	li	$2,256			# 0x100
	move	$5,$0
	li	$6,10485760			# 0xa00000
	addiu	$7,$sp,24
	sw	$2,16($sp)
	jal	demux_pattern_3
	sw	$0,24($sp)

	beq	$2,$0,$L34
	lw	$3,24($sp)

	lw	$4,0($16)
	lw	$2,4($16)
	slt	$2,$4,$2
	beq	$2,$0,$L23
	addiu	$3,$4,1

	lw	$2,8($16)
	addu	$2,$2,$4
	lbu	$2,0($2)
	sw	$3,0($16)
$L25:
	lui	$4,%hi(next_nal)
	bltz	$2,$L21
	sw	$2,%lo(next_nal)($4)

	li	$2,4			# 0x4
	j	$L17
	sw	$2,%lo(videobuf_code_len)($17)

$L34:
	li	$2,10485760			# 0xa00000
	beq	$3,$2,$L35
	lui	$6,%hi($LC0)

	lui	$4,%hi(next_nal)
$L21:
	li	$2,-1			# 0xffffffffffffffff
$L36:
	sw	$2,%lo(next_nal)($4)
	sw	$0,%lo(videobuf_code_len)($17)
	move	$3,$0
	lw	$31,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,48

$L23:
	jal	ds_fill_buffer
	move	$4,$16

	beq	$2,$0,$L26
	lui	$4,%hi(next_nal)

	lw	$2,0($16)
	lw	$3,8($16)
	addiu	$4,$2,1
	addu	$3,$3,$2
	lbu	$2,0($3)
	j	$L25
	sw	$4,0($16)

$L26:
	li	$2,-1			# 0xffffffffffffffff
	j	$L36
	sw	$2,%lo(next_nal)($4)

$L35:
	li	$4,5			# 0x5
	addiu	$6,$6,%lo($LC0)
	jal	mp_msg
	li	$5,1			# 0x1

	j	$L21
	lui	$4,%hi(next_nal)

	.set	macro
	.set	reorder
	.end	sync_video_packet
	.section	.text.deinit_parse_ex,"ax",@progbits
	.align	2
	.align	5
	.globl	deinit_parse_ex
	.ent	deinit_parse_ex
	.type	deinit_parse_ex, @function
deinit_parse_ex:
	.frame	$sp,24,$31		# vars= 0, regs= 2/0, args= 16, gp= 0
	.mask	0x80010000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-24
	sw	$16,16($sp)
	lui	$16,%hi(videobuffer)
	lw	$2,%lo(videobuffer)($16)
	sw	$31,20($sp)
	beq	$2,$0,$L38
	move	$4,$2

	jal	uc_free
	nop

$L38:
	sw	$0,%lo(videobuffer)($16)
	lw	$31,20($sp)
	lw	$16,16($sp)
	j	$31
	addiu	$sp,$sp,24

	.set	macro
	.set	reorder
	.end	deinit_parse_ex
	.section	.text.skip_video_packet,"ax",@progbits
	.align	2
	.align	5
	.globl	skip_video_packet
	.ent	skip_video_packet
	.type	skip_video_packet, @function
skip_video_packet:
	.frame	$sp,48,$31		# vars= 8, regs= 3/0, args= 24, gp= 0
	.mask	0x80030000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-48
	sw	$17,36($sp)
	li	$2,256			# 0x100
	lui	$17,%hi(videobuf_code_len)
	move	$5,$0
	li	$6,10485760			# 0xa00000
	addiu	$7,$sp,24
	sw	$16,32($sp)
	sw	$31,40($sp)
	sw	$2,16($sp)
	sw	$0,24($sp)
	sw	$0,%lo(videobuf_code_len)($17)
	jal	demux_pattern_3
	move	$16,$4

	bne	$2,$0,$L42
	lw	$3,24($sp)

	li	$2,10485760			# 0xa00000
	beq	$3,$2,$L55
	lui	$6,%hi($LC0)

	lui	$4,%hi(next_nal)
$L44:
	li	$2,-1			# 0xffffffffffffffff
$L56:
	sw	$2,%lo(next_nal)($4)
	sw	$0,%lo(videobuf_code_len)($17)
	move	$3,$0
	lw	$31,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,48

$L42:
	lw	$4,0($16)
	lw	$2,4($16)
	slt	$2,$4,$2
	beq	$2,$0,$L46
	addiu	$3,$4,1

	lw	$2,8($16)
	addu	$2,$2,$4
	lbu	$2,0($2)
	sw	$3,0($16)
$L48:
	lui	$4,%hi(next_nal)
	bltz	$2,$L44
	sw	$2,%lo(next_nal)($4)

	ori	$3,$2,0x100
	li	$2,4			# 0x4
	sw	$2,%lo(videobuf_code_len)($17)
	lw	$31,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,48

$L46:
	jal	ds_fill_buffer
	move	$4,$16

	beq	$2,$0,$L49
	lui	$4,%hi(next_nal)

	lw	$2,0($16)
	lw	$3,8($16)
	addiu	$4,$2,1
	addu	$3,$3,$2
	lbu	$2,0($3)
	j	$L48
	sw	$4,0($16)

$L55:
	li	$4,5			# 0x5
	addiu	$6,$6,%lo($LC0)
	jal	mp_msg
	li	$5,1			# 0x1

	j	$L44
	lui	$4,%hi(next_nal)

$L49:
	li	$2,-1			# 0xffffffffffffffff
	j	$L56
	sw	$2,%lo(next_nal)($4)

	.set	macro
	.set	reorder
	.end	skip_video_packet
	.globl	videobuffer
	.section	.bss
	.align	2
	.type	videobuffer, @object
	.size	videobuffer, 4
videobuffer:
	.space	4
	.globl	videobuf_len
	.align	2
	.type	videobuf_len, @object
	.size	videobuf_len, 4
videobuf_len:
	.space	4
	.globl	next_nal
	.data
	.align	2
	.type	next_nal, @object
	.size	next_nal, 4
next_nal:
	.word	-1
	.globl	videobuf_code_len
	.section	.bss
	.align	2
	.type	videobuf_code_len, @object
	.size	videobuf_code_len, 4
videobuf_code_len:
	.space	4
	.ident	"GCC: (GNU) 4.1.2"