generic-library/vpx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merge "Make random streams consistant"

Browse Source
This commit is contained in:
Johann 2012-07-24 09:35:23 -07:00 committed by Gerrit Code Review
commit 9f89c4c291
1 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
test/video_source.h
View File

@ -9,6 +9,8 @@
*/
#ifndef TEST_VIDEO_SOURCE_H_
#define TEST_VIDEO_SOURCE_H_
#include "test/acm_random.h"
#include "vpx/vpx_encoder.h"
namespace libvpx_test {
@ -99,16 +101,28 @@ class DummyVideoSource : public VideoSource {
class RandomVideoSource : public DummyVideoSource {
public:
RandomVideoSource() : rnd_(ACMRandom::DeterministicSeed()) {}
protected:
// Reset the RNG to get a matching stream for the second pass
virtual void Begin() {
frame_ = 0;
rnd_.Reset(ACMRandom::DeterministicSeed());
FillFrame();
}
// 15 frames of noise, followed by 15 static frames. Reset to 0 rather
// than holding previous frames to encourage keyframes to be thrown.
virtual void FillFrame() {
if (frame_ % 30 < 15)
for (size_t i = 0; i < raw_sz_; ++i)
img_->img_data[i] = rand();
img_->img_data[i] = rnd_.Rand8();
else
memset(img_->img_data, 0, raw_sz_);
}
ACMRandom rnd_;
};
} // namespace libvpx_test