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Code Issues Releases Activity

avcodec/msmpeg4enc: Don't use code for static init that can fail

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-12-10 06:01:45 +01:00 committed by Andreas Rheinhardt
parent afa511ad34
commit f0042e573e
3 changed files with 10 additions and 18 deletions
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3
libavcodec/mpegvideo_enc.c
View File

@ -1008,8 +1008,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
ff_h263_encode_init(s);
if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
if ((ret = ff_msmpeg4_encode_init(s)) < 0)
return ret;
ff_msmpeg4_encode_init(s);
if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
&& s->out_format == FMT_MPEG1)
ff_mpeg1_encode_init(s);

2
libavcodec/msmpeg4.h
View File

@ -50,7 +50,7 @@ void ff_msmpeg4_encode_motion(MpegEncContext * s, int mx, int my);
int ff_msmpeg4_coded_block_pred(MpegEncContext * s, int n,
uint8_t **coded_block_ptr);
int ff_msmpeg4_encode_init(MpegEncContext *s);
void ff_msmpeg4_encode_init(MpegEncContext *s);
void ff_msmpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
void ff_msmpeg4_encode_ext_header(MpegEncContext *s);
void ff_msmpeg4_encode_mb(MpegEncContext *s, int16_t block[6][64],

23
libavcodec/msmpeg4enc.c
View File

@ -32,7 +32,6 @@
#include "libavutil/attributes.h"
#include "libavutil/avutil.h"
#include "libavutil/mem.h"
#include "mpegvideo.h"
#include "h263.h"
#include "internal.h"
@ -46,13 +45,11 @@
static uint8_t rl_length[NB_RL_TABLES][MAX_LEVEL+1][MAX_RUN+1][2];
/* build the table which associate a (x,y) motion vector to a vlc */
static av_cold int init_mv_table(MVTable *tab)
static av_cold void init_mv_table(MVTable *tab, uint16_t table_mv_index[4096])
{
int i, x, y;
tab->table_mv_index = av_malloc(sizeof(uint16_t) * 4096);
if (!tab->table_mv_index)
return AVERROR(ENOMEM);
tab->table_mv_index = table_mv_index;
/* mark all entries as not used */
for(i=0;i<4096;i++)
@ -63,8 +60,6 @@ static av_cold int init_mv_table(MVTable *tab)
y = tab->table_mvy[i];
tab->table_mv_index[(x << 6) | y] = i;
}
return 0;
}
void ff_msmpeg4_code012(PutBitContext *pb, int n)
@ -118,10 +113,10 @@ static int get_size_of_code(MpegEncContext * s, RLTable *rl, int last, int run,
return size;
}
av_cold int ff_msmpeg4_encode_init(MpegEncContext *s)
av_cold void ff_msmpeg4_encode_init(MpegEncContext *s)
{
static int init_done=0;
int i, ret;
int i;
ff_msmpeg4_common_init(s);
if(s->msmpeg4_version>=4){
@ -130,12 +125,12 @@ av_cold int ff_msmpeg4_encode_init(MpegEncContext *s)
}
if (!init_done) {
static uint16_t mv_index_tables[2][4096];
/* init various encoding tables */
init_done = 1;
if ((ret = init_mv_table(&ff_mv_tables[0])) < 0)
return ret;
if ((ret = init_mv_table(&ff_mv_tables[1])) < 0)
return ret;
init_mv_table(&ff_mv_tables[0], mv_index_tables[0]);
init_mv_table(&ff_mv_tables[1], mv_index_tables[1]);
for(i=0;i<NB_RL_TABLES;i++)
ff_rl_init(&ff_rl_table[i], ff_static_rl_table_store[i]);
@ -152,8 +147,6 @@ av_cold int ff_msmpeg4_encode_init(MpegEncContext *s)
}
}
}
return 0;
}
static void find_best_tables(MpegEncContext * s)