Adds an error-resilient mode with test
Adds an error-resilient mode where frames can be continued
to be decoded even when there are errors (due to network losses)
on a prior frame. Specifically, backward updates are turned off
and probabilities of various symbols are reset to defaults at
the beginning of each frame. Further, the last frame's mvs are
not used for the mv reference list, and the sorting of the
initial list based on search on previous frames is turned off
as well.
Also adds a test where an arbitrary set of frames are skipped
from decoding to simulate errors. The test verifies (1) that if
the error frames are droppable - i.e. frame buffer updates have
been turned off - there are no mismatch errors for the remaining
frames after the error frames; and (2) if the error-frames are non
droppable, there are not only no decoding errors but the mismatch
PSNR between the decoder's version of the post-error frames and the
encoder's version is at least 20 dB.
Change-Id: Ie6e2bcd436b1e8643270356d3a930e8989ff52a5
diff --git a/test/encode_test_driver.h b/test/encode_test_driver.h
index 6182572..0944dc2 100644
--- a/test/encode_test_driver.h
+++ b/test/encode_test_driver.h
@@ -9,6 +9,8 @@
*/
#ifndef TEST_ENCODE_TEST_DRIVER_H_
#define TEST_ENCODE_TEST_DRIVER_H_
+
+#include "./vpx_config.h"
#include <string>
#include <vector>
#include "third_party/googletest/src/include/gtest/gtest.h"
@@ -162,7 +164,7 @@
// Map the TestMode enum to the deadline_ and passes_ variables.
void SetMode(TestMode mode);
- // Main loop.
+ // Main loop
virtual void RunLoop(VideoSource *video);
// Hook to be called at the beginning of a pass.
@@ -185,6 +187,13 @@
virtual bool Continue() const { return !abort_; }
const CodecFactory *codec_;
+ // Hook to determine whether to decode frame after encoding
+ virtual bool DoDecode() const { return 1; }
+
+ // Hook to handle encode/decode mismatch
+ virtual void MismatchHook(const vpx_image_t *img1,
+ const vpx_image_t *img2);
+
bool abort_;
vpx_codec_enc_cfg_t cfg_;
unsigned int passes_;
