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Merge remote-tracking branch 'qatar/master'

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* qatar/master:
  configure: fix tests for 2-arg math functions
  doc: git-howto: Clarify comment about pushing series of commits
  ivi_common: Drop unused function parameter from decode_band()
  cook: Remove some silly Doxygen comments
  cook: Remove senseless maybe_reformat_buffer32() function
  cook: cosmetics: Better names for joint_decode() function parameters
  cook: cosmetics: Better name for ccpl COOKSubpacket member
  doxygen: Add av_alloc_size to list of predefined macros
  doxygen: Drop some pointless entries from PREDEFINED macros list
  h263: avoid memcpys over array bound in motion vector caching for obmc

Conflicts:
	configure
	doc/git-howto.texi
	libavcodec/cook.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2012-10-27 15:02:35 +02:00
parent c25e9292ba 1aa07aa21c
commit 95760b33e7
5 changed files with 55 additions and 83 deletions
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34
libavcodec/mpegvideo_motion.c
View File

@@ -639,37 +639,45 @@ static av_always_inline void MPV_motion_internal(MpegEncContext *s,
prefetch_motion(s, ref_picture, dir);
if(!is_mpeg12 && s->obmc && s->pict_type != AV_PICTURE_TYPE_B){
int16_t mv_cache[4][4][2];
LOCAL_ALIGNED_8(int16_t, mv_cache, [4], [4][2]);
AVFrame *cur_frame = &s->current_picture.f;
const int xy= s->mb_x + s->mb_y*s->mb_stride;
const int mot_stride= s->b8_stride;
const int mot_xy= mb_x*2 + mb_y*2*mot_stride;
av_assert2(!s->mb_skipped);
memcpy(mv_cache[1][1], s->current_picture.f.motion_val[0][mot_xy ], sizeof(int16_t) * 4);
memcpy(mv_cache[2][1], s->current_picture.f.motion_val[0][mot_xy + mot_stride], sizeof(int16_t) * 4);
memcpy(mv_cache[3][1], s->current_picture.f.motion_val[0][mot_xy + mot_stride], sizeof(int16_t) * 4);
AV_COPY32(mv_cache[1][1], cur_frame->motion_val[0][mot_xy ]);
AV_COPY32(mv_cache[1][2], cur_frame->motion_val[0][mot_xy + 1]);
if (mb_y == 0 || IS_INTRA(s->current_picture.f.mb_type[xy - s->mb_stride])) {
memcpy(mv_cache[0][1], mv_cache[1][1], sizeof(int16_t)*4);
AV_COPY32(mv_cache[2][1], cur_frame->motion_val[0][mot_xy + mot_stride ]);
AV_COPY32(mv_cache[2][2], cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
AV_COPY32(mv_cache[3][1], cur_frame->motion_val[0][mot_xy + mot_stride ]);
AV_COPY32(mv_cache[3][2], cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
if (mb_y == 0 || IS_INTRA(cur_frame->mb_type[xy - s->mb_stride])) {
AV_COPY32(mv_cache[0][1], mv_cache[1][1]);
AV_COPY32(mv_cache[0][2], mv_cache[1][2]);
}else{
memcpy(mv_cache[0][1], s->current_picture.f.motion_val[0][mot_xy - mot_stride], sizeof(int16_t) * 4);
AV_COPY32(mv_cache[0][1], cur_frame->motion_val[0][mot_xy - mot_stride ]);
AV_COPY32(mv_cache[0][2], cur_frame->motion_val[0][mot_xy - mot_stride + 1]);
}
if (mb_x == 0 || IS_INTRA(s->current_picture.f.mb_type[xy - 1])) {
if (mb_x == 0 || IS_INTRA(cur_frame->mb_type[xy - 1])) {
AV_COPY32(mv_cache[1][0], mv_cache[1][1]);
AV_COPY32(mv_cache[2][0], mv_cache[2][1]);
}else{
AV_COPY32(mv_cache[1][0], s->current_picture.f.motion_val[0][mot_xy - 1]);
AV_COPY32(mv_cache[2][0], s->current_picture.f.motion_val[0][mot_xy - 1 + mot_stride]);
AV_COPY32(mv_cache[1][0], cur_frame->motion_val[0][mot_xy - 1]);
AV_COPY32(mv_cache[2][0], cur_frame->motion_val[0][mot_xy - 1 + mot_stride]);
}
if (mb_x + 1 >= s->mb_width || IS_INTRA(s->current_picture.f.mb_type[xy + 1])) {
if (mb_x + 1 >= s->mb_width || IS_INTRA(cur_frame->mb_type[xy + 1])) {
AV_COPY32(mv_cache[1][3], mv_cache[1][2]);
AV_COPY32(mv_cache[2][3], mv_cache[2][2]);
}else{
AV_COPY32(mv_cache[1][3], s->current_picture.f.motion_val[0][mot_xy + 2]);
AV_COPY32(mv_cache[2][3], s->current_picture.f.motion_val[0][mot_xy + 2 + mot_stride]);
AV_COPY32(mv_cache[1][3], cur_frame->motion_val[0][mot_xy + 2]);
AV_COPY32(mv_cache[2][3], cur_frame->motion_val[0][mot_xy + 2 + mot_stride]);
}
mx = 0;