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Linshizhi
ffmpeg.wasm-core
Commits
ff4d1aa8
Commit
ff4d1aa8
authored
Sep 01, 2014
by
Gabriel Dume
Committed by
Diego Biurrun
Sep 02, 2014
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Plain Diff
flv: K&R formatting cosmetics
Signed-off-by:
Diego Biurrun
<
diego@biurrun.de
>
parent
f61e47dd
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Showing
3 changed files
with
56 additions
and
49 deletions
+56
-49
flv.h
libavcodec/flv.h
+5
-3
flvdec.c
libavcodec/flvdec.c
+9
-10
flvenc.c
libavcodec/flvenc.c
+42
-36
No files found.
libavcodec/flv.h
View file @
ff4d1aa8
/*
* FLV specific private header.
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
...
...
@@ -20,12 +21,13 @@
#ifndef AVCODEC_FLV_H
#define AVCODEC_FLV_H
#include "mpegvideo.h"
#include "get_bits.h"
#include "mpegvideo.h"
#include "put_bits.h"
void
ff_flv_encode_picture_header
(
MpegEncContext
*
s
,
int
picture_number
);
void
ff_flv2_encode_ac_esc
(
PutBitContext
*
pb
,
int
slevel
,
int
level
,
int
run
,
int
last
);
void
ff_flv_encode_picture_header
(
MpegEncContext
*
s
,
int
picture_number
);
void
ff_flv2_encode_ac_esc
(
PutBitContext
*
pb
,
int
slevel
,
int
level
,
int
run
,
int
last
);
int
ff_flv_decode_picture_header
(
MpegEncContext
*
s
);
void
ff_flv2_decode_ac_esc
(
GetBitContext
*
gb
,
int
*
level
,
int
*
run
,
int
*
last
);
...
...
libavcodec/flvdec.c
View file @
ff4d1aa8
/*
* FLV decoding.
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
...
...
@@ -17,21 +18,21 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "mpegvideo.h"
#include "h263.h"
#include "flv.h"
#include "libavutil/imgutils.h"
#include "flv.h"
#include "h263.h"
#include "mpegvideo.h"
void
ff_flv2_decode_ac_esc
(
GetBitContext
*
gb
,
int
*
level
,
int
*
run
,
int
*
last
)
{
int
is11
=
get_bits1
(
gb
);
*
last
=
get_bits1
(
gb
);
*
run
=
get_bits
(
gb
,
6
);
if
(
is11
)
{
if
(
is11
)
*
level
=
get_sbits
(
gb
,
11
);
}
else
{
else
*
level
=
get_sbits
(
gb
,
7
);
}
}
int
ff_flv_decode_picture_header
(
MpegEncContext
*
s
)
...
...
@@ -128,8 +129,6 @@ AVCodec ff_flv_decoder = {
.
close
=
ff_h263_decode_end
,
.
decode
=
ff_h263_decode_frame
,
.
capabilities
=
CODEC_CAP_DRAW_HORIZ_BAND
|
CODEC_CAP_DR1
,
.
pix_fmts
=
(
const
enum
AVPixelFormat
[])
{
AV_PIX_FMT_YUV420P
,
AV_PIX_FMT_NONE
},
.
pix_fmts
=
(
const
enum
AVPixelFormat
[])
{
AV_PIX_FMT_YUV420P
,
AV_PIX_FMT_NONE
},
};
libavcodec/flvenc.c
View file @
ff4d1aa8
/*
* FLV Encoding specific code.
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
...
...
@@ -17,58 +18,62 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "mpegvideo.h"
#include "h263.h"
#include "flv.h"
#include "h263.h"
#include "mpegvideo.h"
void
ff_flv_encode_picture_header
(
MpegEncContext
*
s
,
int
picture_number
)
void
ff_flv_encode_picture_header
(
MpegEncContext
*
s
,
int
picture_number
)
{
int
format
;
int
format
;
avpriv_align_put_bits
(
&
s
->
pb
);
avpriv_align_put_bits
(
&
s
->
pb
);
put_bits
(
&
s
->
pb
,
17
,
1
);
put_bits
(
&
s
->
pb
,
5
,
(
s
->
h263_flv
-
1
));
/* 0: h263 escape codes 1: 11-bit escape codes */
put_bits
(
&
s
->
pb
,
8
,
(((
int64_t
)
s
->
picture_number
*
30
*
s
->
avctx
->
time_base
.
num
)
/
//FIXME use timestamp
s
->
avctx
->
time_base
.
den
)
&
0xff
);
/* TemporalReference */
if
(
s
->
width
==
352
&&
s
->
height
==
288
)
put_bits
(
&
s
->
pb
,
17
,
1
);
/* 0: h263 escape codes 1: 11-bit escape codes */
put_bits
(
&
s
->
pb
,
5
,
(
s
->
h263_flv
-
1
));
put_bits
(
&
s
->
pb
,
8
,
(((
int64_t
)
s
->
picture_number
*
30
*
s
->
avctx
->
time_base
.
num
)
/
// FIXME use timestamp
s
->
avctx
->
time_base
.
den
)
&
0xff
);
/* TemporalReference */
if
(
s
->
width
==
352
&&
s
->
height
==
288
)
format
=
2
;
else
if
(
s
->
width
==
176
&&
s
->
height
==
144
)
else
if
(
s
->
width
==
176
&&
s
->
height
==
144
)
format
=
3
;
else
if
(
s
->
width
==
128
&&
s
->
height
==
96
)
else
if
(
s
->
width
==
128
&&
s
->
height
==
96
)
format
=
4
;
else
if
(
s
->
width
==
320
&&
s
->
height
==
240
)
else
if
(
s
->
width
==
320
&&
s
->
height
==
240
)
format
=
5
;
else
if
(
s
->
width
==
160
&&
s
->
height
==
120
)
else
if
(
s
->
width
==
160
&&
s
->
height
==
120
)
format
=
6
;
else
if
(
s
->
width
<=
255
&&
s
->
height
<=
255
)
format
=
0
;
/* use 1 byte width & height */
else
format
=
1
;
/* use 2 bytes width & height */
put_bits
(
&
s
->
pb
,
3
,
format
);
/* PictureSize */
if
(
format
==
0
)
{
else
if
(
s
->
width
<=
255
&&
s
->
height
<=
255
)
format
=
0
;
/* use 1 byte width & height */
else
format
=
1
;
/* use 2 bytes width & height */
put_bits
(
&
s
->
pb
,
3
,
format
);
/* PictureSize */
if
(
format
==
0
)
{
put_bits
(
&
s
->
pb
,
8
,
s
->
width
);
put_bits
(
&
s
->
pb
,
8
,
s
->
height
);
}
else
if
(
format
==
1
)
{
}
else
if
(
format
==
1
)
{
put_bits
(
&
s
->
pb
,
16
,
s
->
width
);
put_bits
(
&
s
->
pb
,
16
,
s
->
height
);
}
put_bits
(
&
s
->
pb
,
2
,
s
->
pict_type
==
AV_PICTURE_TYPE_P
);
/* PictureType */
put_bits
(
&
s
->
pb
,
1
,
1
);
/* DeblockingFlag: on */
put_bits
(
&
s
->
pb
,
5
,
s
->
qscale
);
/* Quantizer */
put_bits
(
&
s
->
pb
,
1
,
0
);
/* ExtraInformation */
}
put_bits
(
&
s
->
pb
,
2
,
s
->
pict_type
==
AV_PICTURE_TYPE_P
);
/* PictureType */
put_bits
(
&
s
->
pb
,
1
,
1
);
/* DeblockingFlag: on */
put_bits
(
&
s
->
pb
,
5
,
s
->
qscale
);
/* Quantizer */
put_bits
(
&
s
->
pb
,
1
,
0
);
/* ExtraInformation */
if
(
s
->
h263_aic
)
{
s
->
y_dc_scale_table
=
s
->
c_dc_scale_table
=
ff_aic_dc_scale_table
;
}
else
{
s
->
y_dc_scale_table
=
s
->
c_dc_scale_table
=
ff_mpeg1_dc_scale_table
;
}
if
(
s
->
h263_aic
)
{
s
->
y_dc_scale_table
=
s
->
c_dc_scale_table
=
ff_aic_dc_scale_table
;
}
else
{
s
->
y_dc_scale_table
=
s
->
c_dc_scale_table
=
ff_mpeg1_dc_scale_table
;
}
}
void
ff_flv2_encode_ac_esc
(
PutBitContext
*
pb
,
int
slevel
,
int
level
,
int
run
,
int
last
){
if
(
level
<
64
)
{
// 7-bit level
void
ff_flv2_encode_ac_esc
(
PutBitContext
*
pb
,
int
slevel
,
int
level
,
int
run
,
int
last
)
{
if
(
level
<
64
)
{
// 7-bit level
put_bits
(
pb
,
1
,
0
);
put_bits
(
pb
,
1
,
last
);
put_bits
(
pb
,
6
,
run
);
...
...
@@ -95,6 +100,7 @@ AVCodec ff_flv_encoder = {
.
init
=
ff_mpv_encode_init
,
.
encode2
=
ff_mpv_encode_picture
,
.
close
=
ff_mpv_encode_end
,
.
pix_fmts
=
(
const
enum
AVPixelFormat
[]){
AV_PIX_FMT_YUV420P
,
AV_PIX_FMT_NONE
},
.
pix_fmts
=
(
const
enum
AVPixelFormat
[])
{
AV_PIX_FMT_YUV420P
,
AV_PIX_FMT_NONE
},
.
priv_class
=
&
flv_class
,
};
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