48 строки
1.7 KiB
C
48 строки
1.7 KiB
C
/*
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* Copyright (c) 2016 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef AOM_UTIL_DEBUG_UTIL_H_
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#define AOM_UTIL_DEBUG_UTIL_H_
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#include "./aom_config.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if CONFIG_BITSTREAM_DEBUG
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/* This is a debug tool used to detect bitstream error. On encoder side, it
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* pushes each bit and probability into a queue before the bit is written into
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* the Arithmetic coder. On decoder side, whenever a bit is read out from the
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* Arithmetic coder, it pops out the reference bit and probability from the
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* queue as well. If the two results do not match, this debug tool will report
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* an error. This tool can be used to pin down the bitstream error precisely.
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* By combining gdb's backtrace method, we can detect which module causes the
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* bitstream error. */
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int bitstream_queue_get_write(void);
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int bitstream_queue_get_read(void);
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void bitstream_queue_record_write(void);
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void bitstream_queue_reset_write(void);
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void bitstream_queue_pop(int *result, int *prob);
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void bitstream_queue_push(int result, int prob);
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void bitstream_queue_set_skip_write(int skip);
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void bitstream_queue_set_skip_read(int skip);
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void bitstream_queue_set_frame_write(int frame_idx);
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int bitstream_queue_get_frame_write();
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void bitstream_queue_set_frame_read(int frame_idx);
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int bitstream_queue_get_frame_read();
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#endif // CONFIG_BITSTREAM_DEBUG
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // AOM_UTIL_DEBUG_UTIL_H_
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