From a34a609fc1c21f6ab07ce0469e38c76a2ae077d1 Mon Sep 17 00:00:00 2001 From: Mans Rullgard Date: Wed, 19 Sep 2012 22:30:06 +0100 Subject: [PATCH] motion_est: fix use of inline on extern functions Inline functions declared without extern do not provide an external definition in standard C99. This code only works because most compilers do not implement the inline semantics correctly. With a stricter compiler, linking fails with unresolved references to these functions. Declaring the functions extern inline works correctly with some compilers while some others still fail to create external definitions. For maximum portability, create a static inline version with an externally visible wrapper for ff_get_mb_score. ff_epzs_motion_search is so large that no sane compiler inlines it anyway, so there the inline keyword can simply be dropped with no effect. Signed-off-by: Mans Rullgard --- libavcodec/motion_est.c | 6 +++--- libavcodec/motion_est_template.c | 18 +++++++++++++----- 2 files changed, 16 insertions(+), 8 deletions(-) diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c index 4cf8a68df7..12e12571b1 100644 --- a/libavcodec/motion_est.c +++ b/libavcodec/motion_est.c @@ -1140,7 +1140,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s, dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16); if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip) - dmin= ff_get_mb_score(s, mx, my, 0, 0, 0, 16, 1); + dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1); if((s->flags&CODEC_FLAG_4MV) && !c->skip && varc>50<<8 && vard>10<<8){ @@ -1312,7 +1312,7 @@ static int ff_estimate_motion_b(MpegEncContext * s, dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, ref_index, 0, 16); if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip) - dmin= ff_get_mb_score(s, mx, my, 0, ref_index, 0, 16, 1); + dmin= get_mb_score(s, mx, my, 0, ref_index, 0, 16, 1); //printf("%d %d %d %d//", s->mb_x, s->mb_y, mx, my); // s->mb_type[mb_y*s->mb_width + mb_x]= mb_type; @@ -1624,7 +1624,7 @@ static inline int direct_search(MpegEncContext * s, int mb_x, int mb_y) dmin = hpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16); if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip) - dmin= ff_get_mb_score(s, mx, my, 0, 0, 0, 16, 1); + dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1); get_limits(s, 16*mb_x, 16*mb_y); //restore c->?min/max, maybe not needed diff --git a/libavcodec/motion_est_template.c b/libavcodec/motion_est_template.c index d0d4b4107a..136d8b8494 100644 --- a/libavcodec/motion_est_template.c +++ b/libavcodec/motion_est_template.c @@ -160,8 +160,9 @@ static int no_sub_motion_search(MpegEncContext * s, return dmin; } -inline int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index, - int ref_index, int size, int h, int add_rate) +static inline int get_mb_score(MpegEncContext *s, int mx, int my, + int src_index, int ref_index, int size, + int h, int add_rate) { // const int check_luma= s->dsp.me_sub_cmp != s->dsp.mb_cmp; MotionEstContext * const c= &s->me; @@ -190,6 +191,12 @@ inline int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index, return d; } +int ff_get_mb_score(MpegEncContext *s, int mx, int my, int src_index, + int ref_index, int size, int h, int add_rate) +{ + return get_mb_score(s, mx, my, src_index, ref_index, size, h, add_rate); +} + #define CHECK_QUARTER_MV(dx, dy, x, y)\ {\ const int hx= 4*(x)+(dx);\ @@ -972,9 +979,10 @@ static av_always_inline int epzs_motion_search_internal(MpegEncContext * s, int } //this function is dedicated to the braindamaged gcc -inline int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr, - int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2], - int ref_mv_scale, int size, int h) +int ff_epzs_motion_search(MpegEncContext *s, int *mx_ptr, int *my_ptr, + int P[10][2], int src_index, int ref_index, + int16_t (*last_mv)[2], int ref_mv_scale, + int size, int h) { MotionEstContext * const c= &s->me; //FIXME convert other functions in the same way if faster