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Basic encryption feature for libvpx.

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New decoder control paramter VP8_SET_DECRYPT_KEY to set the decryption key.

Change-Id: I6fc1f44d41f74f3b3f702778af1a6f8f5cc9439f
This commit is contained in:
Dmitry Kovalev
2013-03-15 18:21:55 -07:00
parent 7d855a9f13
commit 26cec5c13f
13 changed files with 248 additions and 45 deletions
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21
test/vp8_boolcoder_test.cc
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@@ -26,6 +26,20 @@ extern "C" {
namespace {
const int num_tests = 10;
void encrypt_buffer(uint8_t *buffer, int size, const uint8_t *key) {
for (int i = 0; i < size; ++i) {
buffer[i] ^= key[i % 32];
}
}
const uint8_t secret_key[32] = {
234, 32, 2, 3, 4, 230, 6, 11,
0, 132, 22, 23, 45, 21, 124, 255,
0, 43, 52, 3, 23, 63, 99, 7,
120, 8, 252, 84, 4, 83, 6, 13
};
} // namespace
using libvpx_test::ACMRandom;
@@ -71,7 +85,12 @@ TEST(VP8, TestBitIO) {
vp8_stop_encode(&bw);
BOOL_DECODER br;
vp8dx_start_decode(&br, bw_buffer, buffer_size);
#if CONFIG_DECRYPT
encrypt_buffer(bw_buffer, buffer_size, secret_key);
#endif
vp8dx_start_decode(&br, bw_buffer, buffer_size, bw_buffer, secret_key);
bit_rnd.Reset(random_seed);
for (int i = 0; i < bits_to_test; ++i) {
if (bit_method == 2) {