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Linshizhi
ffmpeg.wasm-core
Commits
d55f7b65
Commit
d55f7b65
authored
Dec 13, 2003
by
Michael Niedermayer
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Plain Diff
cleanup
Originally committed as revision 2605 to
svn://svn.ffmpeg.org/ffmpeg/trunk
parent
0c11692a
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Side-by-side
Showing
4 changed files
with
12 additions
and
21 deletions
+12
-21
h263dec.c
libavcodec/h263dec.c
+1
-2
mpegvideo.c
libavcodec/mpegvideo.c
+2
-7
mpegvideo.h
libavcodec/mpegvideo.h
+0
-6
ratecontrol.c
libavcodec/ratecontrol.c
+9
-6
No files found.
libavcodec/h263dec.c
View file @
d55f7b65
...
...
@@ -85,7 +85,6 @@ int ff_h263_decode_init(AVCodecContext *avctx)
s
->
msmpeg4_version
=
5
;
break
;
case
CODEC_ID_H263I
:
s
->
h263_intel
=
1
;
break
;
case
CODEC_ID_FLV1
:
s
->
h263_flv
=
1
;
...
...
@@ -460,7 +459,7 @@ retry:
if
(
s
->
flags
&
CODEC_FLAG_LOW_DELAY
)
s
->
low_delay
=
1
;
}
else
if
(
s
->
h263_intel
)
{
}
else
if
(
s
->
codec_id
==
CODEC_ID_H263I
)
{
ret
=
intel_h263_decode_picture_header
(
s
);
}
else
if
(
s
->
h263_flv
)
{
ret
=
flv_h263_decode_picture_header
(
s
);
...
...
libavcodec/mpegvideo.c
View file @
d55f7b65
...
...
@@ -634,7 +634,6 @@ int MPV_encode_init(AVCodecContext *avctx)
avctx
->
pix_fmt
=
PIX_FMT_YUV420P
;
// FIXME
s
->
bit_rate
=
avctx
->
bit_rate
;
s
->
bit_rate_tolerance
=
avctx
->
bit_rate_tolerance
;
s
->
width
=
avctx
->
width
;
s
->
height
=
avctx
->
height
;
if
(
avctx
->
gop_size
>
600
){
...
...
@@ -642,13 +641,9 @@ int MPV_encode_init(AVCodecContext *avctx)
avctx
->
gop_size
=
600
;
}
s
->
gop_size
=
avctx
->
gop_size
;
s
->
max_qdiff
=
avctx
->
max_qdiff
;
s
->
qcompress
=
avctx
->
qcompress
;
s
->
qblur
=
avctx
->
qblur
;
s
->
avctx
=
avctx
;
s
->
flags
=
avctx
->
flags
;
s
->
max_b_frames
=
avctx
->
max_b_frames
;
s
->
b_frame_strategy
=
avctx
->
b_frame_strategy
;
s
->
codec_id
=
avctx
->
codec
->
id
;
s
->
luma_elim_threshold
=
avctx
->
luma_elim_threshold
;
s
->
chroma_elim_threshold
=
avctx
->
chroma_elim_threshold
;
...
...
@@ -1683,10 +1678,10 @@ static void select_input_picture(MpegEncContext *s){
av_log
(
s
->
avctx
,
AV_LOG_ERROR
,
"warning, too many bframes in a row
\n
"
);
b_frames
=
s
->
max_b_frames
;
}
}
else
if
(
s
->
b_frame_strategy
==
0
){
}
else
if
(
s
->
avctx
->
b_frame_strategy
==
0
){
b_frames
=
s
->
max_b_frames
;
while
(
b_frames
&&
!
s
->
input_picture
[
b_frames
])
b_frames
--
;
}
else
if
(
s
->
b_frame_strategy
==
1
){
}
else
if
(
s
->
avctx
->
b_frame_strategy
==
1
){
for
(
i
=
1
;
i
<
s
->
max_b_frames
+
1
;
i
++
){
if
(
s
->
input_picture
[
i
]
&&
s
->
input_picture
[
i
]
->
b_frame_score
==
0
){
s
->
input_picture
[
i
]
->
b_frame_score
=
...
...
libavcodec/mpegvideo.h
View file @
d55f7b65
...
...
@@ -236,25 +236,19 @@ typedef struct MpegEncContext {
int
gop_size
;
int
intra_only
;
///< if true, only intra pictures are generated
int
bit_rate
;
///< wanted bit rate
int
bit_rate_tolerance
;
///< amount of +- bits (>0)
enum
OutputFormat
out_format
;
///< output format
int
h263_pred
;
///< use mpeg4/h263 ac/dc predictions
/* the following codec id fields are deprecated in favor of codec_id */
int
h263_plus
;
///< h263 plus headers
int
h263_msmpeg4
;
///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)
int
h263_intel
;
///< use I263 intel h263 header
int
h263_flv
;
///< use flv h263 header
int
codec_id
;
/* see CODEC_ID_xxx */
int
fixed_qscale
;
///< fixed qscale if non zero
float
qcompress
;
///< amount of qscale change between easy & hard scenes (0.0-1.0)
float
qblur
;
///< amount of qscale smoothing over time (0.0-1.0)
int
max_qdiff
;
///< max qscale difference between frames
int
encoding
;
///< true if we are encoding (vs decoding)
int
flags
;
///< AVCodecContext.flags (HQ, MV4, ...)
int
max_b_frames
;
///< max number of b-frames for encoding
int
b_frame_strategy
;
int
luma_elim_threshold
;
int
chroma_elim_threshold
;
int
strict_std_compliance
;
///< strictly follow the std (MPEG4, ...)
...
...
libavcodec/ratecontrol.c
View file @
d55f7b65
...
...
@@ -236,6 +236,7 @@ int ff_vbv_update(MpegEncContext *s, int frame_size){
*/
static
double
get_qscale
(
MpegEncContext
*
s
,
RateControlEntry
*
rce
,
double
rate_factor
,
int
frame_num
){
RateControlContext
*
rcc
=
&
s
->
rc_context
;
AVCodecContext
*
a
=
s
->
avctx
;
double
q
,
bits
;
const
int
pict_type
=
rce
->
new_pict_type
;
const
double
mb_num
=
s
->
mb_num
;
...
...
@@ -256,7 +257,7 @@ static double get_qscale(MpegEncContext *s, RateControlEntry *rce, double rate_f
rce
->
pict_type
==
P_TYPE
,
rce
->
pict_type
==
B_TYPE
,
rcc
->
qscale_sum
[
pict_type
]
/
(
double
)
rcc
->
frame_count
[
pict_type
],
s
->
qcompress
,
a
->
qcompress
,
/* rcc->last_qscale_for[I_TYPE],
rcc->last_qscale_for[P_TYPE],
rcc->last_qscale_for[B_TYPE],
...
...
@@ -577,6 +578,7 @@ float ff_rate_estimate_qscale(MpegEncContext *s)
int
picture_number
=
s
->
picture_number
;
int64_t
wanted_bits
;
RateControlContext
*
rcc
=
&
s
->
rc_context
;
AVCodecContext
*
a
=
s
->
avctx
;
RateControlEntry
local_rce
,
*
rce
;
double
bits
;
double
rate_factor
;
...
...
@@ -606,7 +608,7 @@ float ff_rate_estimate_qscale(MpegEncContext *s)
}
diff
=
s
->
total_bits
-
wanted_bits
;
br_compensation
=
(
s
->
bit_rate_tolerance
-
diff
)
/
s
->
bit_rate_tolerance
;
br_compensation
=
(
a
->
bit_rate_tolerance
-
diff
)
/
a
->
bit_rate_tolerance
;
if
(
br_compensation
<=
0
.
0
)
br_compensation
=
0
.
001
;
var
=
pict_type
==
I_TYPE
?
pic
->
mb_var_sum
:
pic
->
mc_mb_var_sum
;
...
...
@@ -658,8 +660,8 @@ float ff_rate_estimate_qscale(MpegEncContext *s)
assert
(
q
>
0
.
0
);
if
(
pict_type
==
P_TYPE
||
s
->
intra_only
){
//FIXME type dependant blur like in 2-pass
rcc
->
short_term_qsum
*=
s
->
qblur
;
rcc
->
short_term_qcount
*=
s
->
qblur
;
rcc
->
short_term_qsum
*=
a
->
qblur
;
rcc
->
short_term_qcount
*=
a
->
qblur
;
rcc
->
short_term_qsum
+=
q
;
rcc
->
short_term_qcount
++
;
...
...
@@ -711,6 +713,7 @@ float ff_rate_estimate_qscale(MpegEncContext *s)
static
int
init_pass2
(
MpegEncContext
*
s
)
{
RateControlContext
*
rcc
=
&
s
->
rc_context
;
AVCodecContext
*
a
=
s
->
avctx
;
int
i
;
double
fps
=
(
double
)
s
->
avctx
->
frame_rate
/
(
double
)
s
->
avctx
->
frame_rate_base
;
double
complexity
[
5
]
=
{
0
,
0
,
0
,
0
,
0
};
// aproximate bits at quant=1
...
...
@@ -722,7 +725,7 @@ static int init_pass2(MpegEncContext *s)
double
rate_factor
=
0
;
double
step
;
//int last_i_frame=-10000000;
const
int
filter_size
=
(
int
)(
s
->
qblur
*
4
)
|
1
;
const
int
filter_size
=
(
int
)(
a
->
qblur
*
4
)
|
1
;
double
expected_bits
;
double
*
qscale
,
*
blured_qscale
;
...
...
@@ -803,7 +806,7 @@ static int init_pass2(MpegEncContext *s)
for
(
j
=
0
;
j
<
filter_size
;
j
++
){
int
index
=
i
+
j
-
filter_size
/
2
;
double
d
=
index
-
i
;
double
coeff
=
s
->
qblur
==
0
?
1
.
0
:
exp
(
-
d
*
d
/
(
s
->
qblur
*
s
->
qblur
));
double
coeff
=
a
->
qblur
==
0
?
1
.
0
:
exp
(
-
d
*
d
/
(
a
->
qblur
*
a
->
qblur
));
if
(
index
<
0
||
index
>=
rcc
->
num_entries
)
continue
;
if
(
pict_type
!=
rcc
->
entry
[
index
].
new_pict_type
)
continue
;
...
...
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