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Diffstat (limited to 'third_party/aom/aom_dsp/grain_table.h')
| -rw-r--r-- | third_party/aom/aom_dsp/grain_table.h | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/third_party/aom/aom_dsp/grain_table.h b/third_party/aom/aom_dsp/grain_table.h deleted file mode 100644 index a8ac50730..000000000 --- a/third_party/aom/aom_dsp/grain_table.h +++ /dev/null @@ -1,102 +0,0 @@ -/* - * Copyright (c) 2018, Alliance for Open Media. All rights reserved - * - * This source code is subject to the terms of the BSD 2 Clause License and - * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License - * was not distributed with this source code in the LICENSE file, you can - * obtain it at www.aomedia.org/license/software. If the Alliance for Open - * Media Patent License 1.0 was not distributed with this source code in the - * PATENTS file, you can obtain it at www.aomedia.org/license/patent. - */ - -/*!\file - * \brief A table mapping from time to corresponding film grain parameters. - * - * In order to apply grain synthesis in the decoder, the film grain parameters - * need to be signalled in the encoder. The film grain parameters are time - * varying, and for two-pass encoding (and denoiser implementation flexibility) - * it is common to denoise the video and do parameter estimation before encoding - * the denoised video. - * - * The film grain table is used to provide this flexibility and is used as a - * parameter that is passed to the encoder. - * - * Further, if regraining is to be done in say a single pass mode, or in two - * pass within the encoder (before frames are added to the lookahead buffer), - * this data structure can be used to keep track of on-the-fly estimated grain - * parameters, that are then extracted from the table before the encoded frame - * is written. - */ -#ifndef AOM_AOM_DSP_GRAIN_TABLE_H_ -#define AOM_AOM_DSP_GRAIN_TABLE_H_ - -#ifdef __cplusplus -extern "C" { -#endif - -#include "aom_dsp/grain_synthesis.h" -#include "aom/internal/aom_codec_internal.h" - -typedef struct aom_film_grain_table_entry_t { - aom_film_grain_t params; - int64_t start_time; - int64_t end_time; - struct aom_film_grain_table_entry_t *next; -} aom_film_grain_table_entry_t; - -typedef struct { - aom_film_grain_table_entry_t *head; - aom_film_grain_table_entry_t *tail; -} aom_film_grain_table_t; - -/*!\brief Add a mapping from [time_stamp, end_time) to the given grain - * parameters - * - * \param[in/out] table The grain table - * \param[in] time_stamp The start time stamp - * \param[in] end_stamp The end time_stamp - * \param[in] grain The grain parameters - */ -void aom_film_grain_table_append(aom_film_grain_table_t *table, - int64_t time_stamp, int64_t end_time, - const aom_film_grain_t *grain); - -/*!\brief Look-up (and optionally erase) the grain parameters for the given time - * - * \param[in] table The grain table - * \param[in] time_stamp The start time stamp - * \param[in] end_stamp The end time_stamp - * \param[in] erase Whether the time segment can be deleted - * \param[out] grain The output grain parameters - */ -int aom_film_grain_table_lookup(aom_film_grain_table_t *t, int64_t time_stamp, - int64_t end_time, int erase, - aom_film_grain_t *grain); - -/*!\brief Reads the grain table from a file. - * - * \param[out] table The grain table - * \param[in] filename The file to read from - * \param[in] error_info Error info for tracking errors - */ -aom_codec_err_t aom_film_grain_table_read( - aom_film_grain_table_t *table, const char *filename, - struct aom_internal_error_info *error_info); - -/*!\brief Writes the grain table from a file. - * - * \param[out] table The grain table - * \param[in] filename The file to read from - * \param[in] error_info Error info for tracking errors - */ -aom_codec_err_t aom_film_grain_table_write( - const aom_film_grain_table_t *t, const char *filename, - struct aom_internal_error_info *error_info); - -void aom_film_grain_table_free(aom_film_grain_table_t *t); - -#ifdef __cplusplus -} -#endif - -#endif // AOM_AOM_DSP_GRAIN_TABLE_H_ |