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various 10l fixes for the loop filter

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Originally committed as revision 4249 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-05-16 17:22:36 +00:00
parent 42cc17f926
commit d5e188359e
1 changed files with 10 additions and 8 deletions
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18
libavcodec/vp3.c
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@ -2269,7 +2269,9 @@ static void apply_loop_filter(Vp3DecodeContext *s)
int fragment;
int stride;
unsigned char *plane_data;
int bounding_values[256];
int bounding_values_array[256];
int *bounding_values= bounding_values_array+127;
int filter_limit;
/* find the right loop limit value */
@ -2277,10 +2279,10 @@ static void apply_loop_filter(Vp3DecodeContext *s)
if (vp31_ac_scale_factor[x] >= s->quality_index)
break;
}
filter_limit = vp31_filter_limit_values[x];
filter_limit = vp31_filter_limit_values[s->quality_index];
/* set up the bounding values */
memset(bounding_values, 0, 256 * sizeof(int));
memset(bounding_values_array, 0, 256 * sizeof(int));
for (x = 0; x < filter_limit; x++) {
bounding_values[-x - filter_limit] = -filter_limit + x;
bounding_values[-x] = -x;
@ -2321,7 +2323,7 @@ static void apply_loop_filter(Vp3DecodeContext *s)
if ((x > 0) &&
(s->all_fragments[fragment].coding_method != MODE_COPY)) {
horizontal_filter(
plane_data + s->all_fragments[fragment].first_pixel,
plane_data + s->all_fragments[fragment].first_pixel - 7*stride,
stride, bounding_values);
}
@ -2329,7 +2331,7 @@ static void apply_loop_filter(Vp3DecodeContext *s)
if ((y > 0) &&
(s->all_fragments[fragment].coding_method != MODE_COPY)) {
vertical_filter(
plane_data + s->all_fragments[fragment].first_pixel,
plane_data + s->all_fragments[fragment].first_pixel + stride,
stride, bounding_values);
}
@ -2340,7 +2342,7 @@ static void apply_loop_filter(Vp3DecodeContext *s)
(s->all_fragments[fragment].coding_method != MODE_COPY) &&
(s->all_fragments[fragment + 1].coding_method == MODE_COPY)) {
horizontal_filter(
plane_data + s->all_fragments[fragment + 1].first_pixel,
plane_data + s->all_fragments[fragment + 1].first_pixel - 7*stride,
stride, bounding_values);
}
@ -2351,7 +2353,7 @@ static void apply_loop_filter(Vp3DecodeContext *s)
(s->all_fragments[fragment].coding_method != MODE_COPY) &&
(s->all_fragments[fragment + width].coding_method == MODE_COPY)) {
vertical_filter(
plane_data + s->all_fragments[fragment + width].first_pixel,
plane_data + s->all_fragments[fragment + width].first_pixel + stride,
stride, bounding_values);
}
@ -2740,7 +2742,6 @@ if (!s->keyframe) {
reverse_dc_prediction(s, 0, s->fragment_width, s->fragment_height);
render_fragments(s, 0, s->width, s->height, 0);
// apply_loop_filter(s);
if ((avctx->flags & CODEC_FLAG_GRAY) == 0) {
reverse_dc_prediction(s, s->u_fragment_start,
@ -2754,6 +2755,7 @@ if (!s->keyframe) {
memset(s->current_frame.data[2], 0x80, s->width * s->height / 4);
}
apply_loop_filter(s);
#if KEYFRAMES_ONLY
}
#endif