1 files changed, 70 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_util/vpx_debug_util.h b/media/libvpx/libvpx/vpx_util/vpx_debug_util.h
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index 0000000000..df1a1aab2c
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+++ b/media/libvpx/libvpx/vpx_util/vpx_debug_util.h
@@ -0,0 +1,70 @@
+/*
+ *  Copyright (c) 2019 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VPX_VPX_UTIL_VPX_DEBUG_UTIL_H_
+#define VPX_VPX_UTIL_VPX_DEBUG_UTIL_H_
+
+#include "./vpx_config.h"
+
+#include "vpx_dsp/prob.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if CONFIG_BITSTREAM_DEBUG || CONFIG_MISMATCH_DEBUG
+void bitstream_queue_set_frame_write(int frame_idx);
+int bitstream_queue_get_frame_write(void);
+void bitstream_queue_set_frame_read(int frame_idx);
+int bitstream_queue_get_frame_read(void);
+#endif
+
+#if CONFIG_BITSTREAM_DEBUG
+/* This is a debug tool used to detect bitstream error. On encoder side, it
+ * pushes each bit and probability into a queue before the bit is written into
+ * the Arithmetic coder. On decoder side, whenever a bit is read out from the
+ * Arithmetic coder, it pops out the reference bit and probability from the
+ * queue as well. If the two results do not match, this debug tool will report
+ * an error.  This tool can be used to pin down the bitstream error precisely.
+ * By combining gdb's backtrace method, we can detect which module causes the
+ * bitstream error. */
+int bitstream_queue_get_write(void);
+int bitstream_queue_get_read(void);
+void bitstream_queue_record_write(void);
+void bitstream_queue_reset_write(void);
+void bitstream_queue_pop(int *result, int *prob);
+void bitstream_queue_push(int result, const int prob);
+void bitstream_queue_set_skip_write(int skip);
+void bitstream_queue_set_skip_read(int skip);
+#endif  // CONFIG_BITSTREAM_DEBUG
+
+#if CONFIG_MISMATCH_DEBUG
+void mismatch_move_frame_idx_w(void);
+void mismatch_move_frame_idx_r(void);
+void mismatch_reset_frame(int num_planes);
+void mismatch_record_block_pre(const uint8_t *src, int src_stride, int plane,
+                               int pixel_c, int pixel_r, int blk_w, int blk_h,
+                               int highbd);
+void mismatch_record_block_tx(const uint8_t *src, int src_stride, int plane,
+                              int pixel_c, int pixel_r, int blk_w, int blk_h,
+                              int highbd);
+void mismatch_check_block_pre(const uint8_t *src, int src_stride, int plane,
+                              int pixel_c, int pixel_r, int blk_w, int blk_h,
+                              int highbd);
+void mismatch_check_block_tx(const uint8_t *src, int src_stride, int plane,
+                             int pixel_c, int pixel_r, int blk_w, int blk_h,
+                             int highbd);
+#endif  // CONFIG_MISMATCH_DEBUG
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_VPX_UTIL_VPX_DEBUG_UTIL_H_