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BC
public
external
ffmpeg
Commits
7da71a5c
Commit
7da71a5c
authored
Oct 22, 2002
by
Michael Niedermayer
Browse files
xvid qpel bug autodetect
Originally committed as revision 1064 to
svn://svn.ffmpeg.org/ffmpeg/trunk
parent
03e93d35
Changes
3
Hide whitespace changes
Inline
Side-by-side
libavcodec/h263.c
View file @
7da71a5c
...
...
@@ -4328,6 +4328,8 @@ static int decode_user_data(MpegEncContext *s, GetBitContext *gb){
skip_bits
(
gb
,
8
);
}
buf
[
255
]
=
0
;
/* divx detection */
e
=
sscanf
(
buf
,
"DivX%dBuild%d"
,
&
ver
,
&
build
);
if
(
e
!=
2
)
e
=
sscanf
(
buf
,
"DivX%db%d"
,
&
ver
,
&
build
);
...
...
@@ -4336,11 +4338,10 @@ static int decode_user_data(MpegEncContext *s, GetBitContext *gb){
s
->
divx_build
=
build
;
if
(
s
->
picture_number
==
0
){
printf
(
"This file was encoded with DivX%d Build%d
\n
"
,
ver
,
build
);
if
(
ver
==
500
&&
build
==
413
){
printf
(
"WARNING: this version of DivX is not MPEG4 compatible, trying to workaround these bugs...
\n
"
);
}
}
}
/* ffmpeg detection */
e
=
sscanf
(
buf
,
"FFmpeg%d.%d.%db%d"
,
&
ver
,
&
ver2
,
&
ver3
,
&
build
);
if
(
e
!=
4
)
e
=
sscanf
(
buf
,
"FFmpeg v%d.%d.%d / libavcodec build: %d"
,
&
ver
,
&
ver2
,
&
ver3
,
&
build
);
...
...
@@ -4356,6 +4357,15 @@ static int decode_user_data(MpegEncContext *s, GetBitContext *gb){
if
(
s
->
picture_number
==
0
)
printf
(
"This file was encoded with libavcodec build %d
\n
"
,
build
);
}
/* xvid detection */
e
=
sscanf
(
buf
,
"XviD%d"
,
&
build
);
if
(
e
==
1
){
s
->
xvid_build
=
build
;
if
(
s
->
picture_number
==
0
)
printf
(
"This file was encoded with XviD build %d
\n
"
,
build
);
}
//printf("User Data: %s\n", buf);
return
0
;
}
...
...
libavcodec/h263dec.c
View file @
7da71a5c
...
...
@@ -376,6 +376,13 @@ uint64_t time= rdtsc();
if
(
s
->
divx_version
){
s
->
workaround_bugs
|=
FF_BUG_QPEL_CHROMA
;
}
if
(
s
->
avctx
->
fourcc
==
ff_get_fourcc
(
"XVID"
)
&&
s
->
xvid_build
==
0
)
s
->
workaround_bugs
|=
FF_BUG_QPEL_CHROMA
;
if
(
s
->
xvid_build
&&
s
->
xvid_build
<=
1
)
s
->
workaround_bugs
|=
FF_BUG_QPEL_CHROMA
;
//printf("padding_bug_score: %d\n", s->padding_bug_score);
#if 0
if(s->divx_version==500)
...
...
libavcodec/mpegvideo.h
View file @
7da71a5c
...
...
@@ -413,6 +413,8 @@ typedef struct MpegEncContext {
UINT8
*
bitstream_buffer
;
//Divx 5.01 puts several frames in a single one, this is used to reorder them
int
bitstream_buffer_size
;
int
xvid_build
;
/* lavc specific stuff, used to workaround bugs in libavcodec */
int
ffmpeg_version
;
int
lavc_build
;
...
...
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