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Code Issues Releases Activity

Record MPEG-4 sprite trajectory points [up to num_sprite_warping_points][isY].

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Originally committed as revision 18250 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Gwenole Beauchesne 2009-03-30 20:39:08 +00:00
parent 7f7b04af38
commit 11b9397941
2 changed files with 5 additions and 2 deletions
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6
libavcodec/h263.c
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@ -5339,9 +5339,11 @@ static void mpeg4_decode_sprite_trajectory(MpegEncContext * s, GetBitContext *gb
}
skip_bits1(gb); /* marker bit */
//printf("%d %d %d %d\n", x, y, i, s->sprite_warping_accuracy);
d[i][0]= x;
d[i][1]= y;
s->sprite_traj[i][0]= d[i][0]= x;
s->sprite_traj[i][1]= d[i][1]= y;
}
for(; i<4; i++)
s->sprite_traj[i][0]= s->sprite_traj[i][1]= 0;
while((1<<alpha)<w) alpha++;
while((1<<beta )<h) beta++; // there seems to be a typo in the mpeg4 std for the definition of w' and h'

1
libavcodec/mpegvideo.h
View File

@ -519,6 +519,7 @@ typedef struct MpegEncContext {
int sprite_brightness_change;
int num_sprite_warping_points;
int real_sprite_warping_points;
uint16_t sprite_traj[4][2]; ///< sprite trajectory points
int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
int sprite_shift[2]; ///< sprite shift [isChroma]