ref: 197ef67eeb327d79abb961fa0dfd8de9df24d691
dir: /vpx_util/vpx_debug_util.h/
/* * 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 /* 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. */ 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); 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 #ifdef __cplusplus } // extern "C" #endif #endif // VPX_VPX_UTIL_VPX_DEBUG_UTIL_H_