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author | David Smith <davidas@google.com> | 2014-08-15 16:29:04 -0700 |
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committer | David Smith <davidas@google.com> | 2014-08-22 16:55:48 -0700 |
commit | 744f5739019d1fd917f981e740b353c3d73fd1a8 (patch) | |
tree | beb8494e67a3b7c2b8f0e0dc67347d3bed10153b /media/libstagefright/filters/saturationARGB.rs | |
parent | 61cdd163e99eda4c8313bf754c1c557f8291aa8d (diff) | |
download | frameworks_av-744f5739019d1fd917f981e740b353c3d73fd1a8.zip frameworks_av-744f5739019d1fd917f981e740b353c3d73fd1a8.tar.gz frameworks_av-744f5739019d1fd917f981e740b353c3d73fd1a8.tar.bz2 |
stagefright: MediaFilter and SimpleFilter(s)
MediaFilter implements CodecBase and provides video filtering support
via filter modules which extend SimpleFilter.
Bug: 17203044
Change-Id: Ifb30c501e2901c44999d95d7d150e863b2bd06c6
Diffstat (limited to 'media/libstagefright/filters/saturationARGB.rs')
-rw-r--r-- | media/libstagefright/filters/saturationARGB.rs | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/media/libstagefright/filters/saturationARGB.rs b/media/libstagefright/filters/saturationARGB.rs new file mode 100644 index 0000000..20cfab9 --- /dev/null +++ b/media/libstagefright/filters/saturationARGB.rs @@ -0,0 +1,39 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#pragma version(1) +#pragma rs java_package_name(com.android.rs.cppbasic) +#pragma rs_fp_relaxed + +const static float3 gMonoMult = {0.299f, 0.587f, 0.114f}; + +// global variables (parameters accessible to application code) +float gSaturation = 1.0f; + +void root(const uchar4 *v_in, uchar4 *v_out) { + // get RGB, scale 0-255 uchar to 0-1.0 float + float3 rgb = {v_in->y * 0.003921569f, v_in->z * 0.003921569f, + v_in->w * 0.003921569f}; + + // apply saturation filter + float3 result = dot(rgb, gMonoMult); + result = mix(result, rgb, gSaturation); + + v_out->x = v_in->x; // don't modify A + v_out->y = (uchar)clamp((result.r * 255.f + 0.5f), 0.f, 255.f); + v_out->z = (uchar)clamp((result.g * 255.f + 0.5f), 0.f, 255.f); + v_out->w = (uchar)clamp((result.b * 255.f + 0.5f), 0.f, 255.f); +} |