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Code Issues Releases Activity

avcodec/mpegvideo_enc, motion_est: Pre-center fcode_tab

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2022-02-17 16:54:20 +01:00
parent c709a3d424
commit 85138c1434
5 changed files with 5 additions and 6 deletions
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2
libavcodec/ituh263enc.c
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@@ -843,7 +843,7 @@ av_cold void ff_h263_encode_init(MpegEncContext *s)
break; break;
case AV_CODEC_ID_H263P: case AV_CODEC_ID_H263P:
if(s->umvplus) if(s->umvplus)
s->fcode_tab= umv_fcode_tab; s->fcode_tab = umv_fcode_tab + MAX_MV;
if(s->modified_quant){ if(s->modified_quant){
s->min_qcoeff= -2047; s->min_qcoeff= -2047;
s->max_qcoeff= 2047; s->max_qcoeff= 2047;

3
libavcodec/motion_est.c
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@@ -1619,8 +1619,7 @@ int ff_get_best_fcode(MpegEncContext * s, const int16_t (*mv_table)[2], int type
if(s->mb_type[xy] & type){ if(s->mb_type[xy] & type){
int mx= mv_table[xy][0]; int mx= mv_table[xy][0];
int my= mv_table[xy][1]; int my= mv_table[xy][1];
int fcode= FFMAX(fcode_tab[mx + MAX_MV], int fcode = FFMAX(fcode_tab[mx], fcode_tab[my]);
fcode_tab[my + MAX_MV]);
int j; int j;
if (mx >= range || mx < -range || if (mx >= range || mx < -range ||

2
libavcodec/mpeg12enc.c
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@@ -1157,7 +1157,7 @@ av_cold void ff_mpeg1_encode_init(MpegEncContext *s)
s->c_dc_scale_table = ff_mpeg12_dc_scale_table[s->intra_dc_precision]; s->c_dc_scale_table = ff_mpeg12_dc_scale_table[s->intra_dc_precision];
s->me.mv_penalty = mv_penalty; s->me.mv_penalty = mv_penalty;
s->fcode_tab = fcode_tab; s->fcode_tab = fcode_tab + MAX_MV;
if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO) { if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
s->min_qcoeff = -255; s->min_qcoeff = -255;
s->max_qcoeff = 255; s->max_qcoeff = 255;

2
libavcodec/mpeg4videoenc.c
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@@ -1290,7 +1290,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
ff_thread_once(&init_static_once, mpeg4_encode_init_static); ff_thread_once(&init_static_once, mpeg4_encode_init_static);
s->fcode_tab = fcode_tab; s->fcode_tab = fcode_tab + MAX_MV;
s->min_qcoeff = -2048; s->min_qcoeff = -2048;
s->max_qcoeff = 2047; s->max_qcoeff = 2047;
s->intra_ac_vlc_length = uni_mpeg4_intra_rl_len; s->intra_ac_vlc_length = uni_mpeg4_intra_rl_len;

2
libavcodec/mpegvideo_enc.c
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@@ -286,7 +286,7 @@ static void mpv_encode_defaults(MpegEncContext *s)
ff_thread_once(&init_static_once, mpv_encode_init_static); ff_thread_once(&init_static_once, mpv_encode_init_static);
s->fcode_tab = default_fcode_tab; s->fcode_tab = default_fcode_tab + MAX_MV;
s->input_picture_number = 0; s->input_picture_number = 0;
s->picture_in_gop_number = 0; s->picture_in_gop_number = 0;