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video-scaler: fix taps calculation for pstride == 1

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Take pstride into consideration when calculating the scaler taps.
This commit is contained in:
Wim Taymans 2015-01-28 11:38:16 +01:00
parent caff09300b
commit e16377c0c8
1 changed files with 20 additions and 17 deletions
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37
gst-libs/gst/video/video-scaler.c
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@ -323,7 +323,7 @@ resampler_convert_coeff (const gdouble * src,
}
static void
make_s16_taps (GstVideoScaler * scale, gint precision)
make_s16_taps (GstVideoScaler * scale, gint pstride, gint precision)
{
gint i, j, max_taps, n_phases, out_size, src_inc;
gint16 *taps_s16, *taps_s16_4;
@ -365,10 +365,13 @@ make_s16_taps (GstVideoScaler * scale, gint precision)
offset_n[j * out_size + i] = offset[i] + j * src_inc;
tap = taps_s16[phase[i] * max_taps + j];
taps_s16_4[(j * out_size + i) * 4 + 0] = tap;
taps_s16_4[(j * out_size + i) * 4 + 1] = tap;
taps_s16_4[(j * out_size + i) * 4 + 2] = tap;
taps_s16_4[(j * out_size + i) * 4 + 3] = tap;
taps_s16_4[(j * out_size + i) * pstride + 0] = tap;
if (pstride > 1)
taps_s16_4[(j * out_size + i) * pstride + 1] = tap;
if (pstride > 2)
taps_s16_4[(j * out_size + i) * pstride + 2] = tap;
if (pstride > 3)
taps_s16_4[(j * out_size + i) * pstride + 3] = tap;
}
}
}
@ -468,9 +471,9 @@ video_scale_h_ntap_u8 (GstVideoScaler * scale,
if (scale->taps_s16 == NULL)
#ifdef LQ
make_s16_taps (scale, SCALE_U8_LQ);
make_s16_taps (scale, pstride, SCALE_U8_LQ);
#else
make_s16_taps (scale, SCALE_U8);
make_s16_taps (scale, pstride, SCALE_U8);
#endif
max_taps = scale->resampler.max_taps;
@ -579,7 +582,7 @@ video_scale_h_ntap_u16 (GstVideoScaler * scale,
gint32 *temp;
if (scale->taps_s16 == NULL)
make_s16_taps (scale, SCALE_U16);
make_s16_taps (scale, pstride, SCALE_U16);
max_taps = scale->resampler.max_taps;
offset_n = scale->offset_n;
@ -650,9 +653,9 @@ video_scale_v_2tap_u8 (GstVideoScaler * scale,
if (scale->taps_s16 == NULL)
#ifdef LQ
make_s16_taps (scale, SCALE_U8_LQ + 2);
make_s16_taps (scale, pstride, SCALE_U8_LQ + 2);
#else
make_s16_taps (scale, SCALE_U8);
make_s16_taps (scale, pstride, SCALE_U8);
#endif
max_taps = scale->resampler.max_taps;
@ -684,7 +687,7 @@ video_scale_v_2tap_u16 (GstVideoScaler * scale,
gint16 p1;
if (scale->taps_s16 == NULL)
make_s16_taps (scale, SCALE_U16);
make_s16_taps (scale, pstride, SCALE_U16);
pstride /= 2;
@ -715,7 +718,7 @@ video_scale_h_4tap_8888 (GstVideoScaler * scale,
guint32 *pixels;
if (scale->taps_s16 == NULL)
make_s16_taps (scale, S16_SCALE);
make_s16_taps (scale, pstride, S16_SCALE);
max_taps = scale->resampler.max_taps;
offset_n = scale->offset_n;
@ -749,9 +752,9 @@ video_scale_v_4tap_u8 (GstVideoScaler * scale,
if (scale->taps_s16 == NULL)
#ifdef LQ
make_s16_taps (scale, SCALE_U8_LQ);
make_s16_taps (scale, pstride, SCALE_U8_LQ);
#else
make_s16_taps (scale, SCALE_U8);
make_s16_taps (scale, pstride, SCALE_U8);
#endif
max_taps = scale->resampler.max_taps;
@ -793,9 +796,9 @@ video_scale_v_ntap_u8 (GstVideoScaler * scale,
if (scale->taps_s16 == NULL)
#ifdef LQ
make_s16_taps (scale, SCALE_U8_LQ);
make_s16_taps (scale, pstride, SCALE_U8_LQ);
#else
make_s16_taps (scale, SCALE_U8);
make_s16_taps (scale, pstride, SCALE_U8);
#endif
max_taps = scale->resampler.max_taps;
@ -880,7 +883,7 @@ video_scale_v_ntap_u16 (GstVideoScaler * scale,
gint32 *temp;
if (scale->taps_s16 == NULL)
make_s16_taps (scale, SCALE_U16);
make_s16_taps (scale, pstride, SCALE_U16);
pstride /= 2;