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| author | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-12-09 02:47:48 +0100 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2021-01-25 14:51:53 +0100 |
| commit | 27eea249cc99a53754ea61ccf29bdff9ae13f55e (patch) | |
| tree | 11c04f4cf9848b203971d50d1ec4416e44c2512e /libavcodec/h263.h | |
| parent | d90d0a715f08384bf44b004da60c6d1760a30beb (diff) | |
avcodec/msmpeg4dec: Reuse identical MV VLC
msmpeg4dec and ituh263dec both create VLCs with identical parameters out
of ff_mvtab. Given that ff_msmpeg4_decode_init() always (indirectly) calls
ff_h263_decode_init_vlc(), the VLC initialized by the latter can be
directly used by msmpeg4dec. Doing so saves a bit more than 2KB from the
.bss segment as well as the code to initialize a VLC.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Diffstat (limited to 'libavcodec/h263.h')
| -rw-r--r-- | libavcodec/h263.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/h263.h b/libavcodec/h263.h index f891f72379..998f7d0d59 100644 --- a/libavcodec/h263.h +++ b/libavcodec/h263.h @@ -34,6 +34,7 @@ // reading vlc values. Changing these may improve speed and data cache needs // be aware though that decreasing them may need the number of stages that is // passed to get_vlc* to be increased. +#define H263_MV_VLC_BITS 9 #define INTRA_MCBPC_VLC_BITS 6 #define INTER_MCBPC_VLC_BITS 7 #define CBPY_VLC_BITS 6 @@ -44,6 +45,7 @@ extern VLC ff_h263_intra_MCBPC_vlc; extern VLC ff_h263_inter_MCBPC_vlc; extern VLC ff_h263_cbpy_vlc; +extern VLC ff_h263_mv_vlc; extern const enum AVPixelFormat ff_h263_hwaccel_pixfmt_list_420[]; |