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ffmpeg-4.2.2/libpostproc/postprocess.h 2.87 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Copyright (C) 2001-2003 Michael Niedermayer (michaelni@gmx.at)
   *
   * This file is part of FFmpeg.
   *
   * FFmpeg is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * FFmpeg is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with FFmpeg; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   */
  
  #ifndef POSTPROC_POSTPROCESS_H
  #define POSTPROC_POSTPROCESS_H
  
  /**
   * @file
   * @ingroup lpp
   * external API header
   */
  
  /**
   * @defgroup lpp libpostproc
   * Video postprocessing library.
   *
   * @{
   */
  
  #include "libpostproc/version.h"
  
  /**
   * Return the LIBPOSTPROC_VERSION_INT constant.
   */
  unsigned postproc_version(void);
  
  /**
   * Return the libpostproc build-time configuration.
   */
  const char *postproc_configuration(void);
  
  /**
   * Return the libpostproc license.
   */
  const char *postproc_license(void);
  
  #define PP_QUALITY_MAX 6
  
  #include <inttypes.h>
  
  typedef void pp_context;
  typedef void pp_mode;
  
  #if LIBPOSTPROC_VERSION_INT < (52<<16)
  typedef pp_context pp_context_t;
  typedef pp_mode pp_mode_t;
  extern const char *const pp_help; ///< a simple help text
  #else
  extern const char pp_help[]; ///< a simple help text
  #endif
  
  void  pp_postprocess(const uint8_t * src[3], const int srcStride[3],
                       uint8_t * dst[3], const int dstStride[3],
                       int horizontalSize, int verticalSize,
                       const int8_t *QP_store,  int QP_stride,
                       pp_mode *mode, pp_context *ppContext, int pict_type);
  
  
  /**
   * Return a pp_mode or NULL if an error occurred.
   *
   * @param name    the string after "-pp" on the command line
   * @param quality a number from 0 to PP_QUALITY_MAX
   */
  pp_mode *pp_get_mode_by_name_and_quality(const char *name, int quality);
  void pp_free_mode(pp_mode *mode);
  
  pp_context *pp_get_context(int width, int height, int flags);
  void pp_free_context(pp_context *ppContext);
  
  #define PP_CPU_CAPS_MMX   0x80000000
  #define PP_CPU_CAPS_MMX2  0x20000000
  #define PP_CPU_CAPS_3DNOW 0x40000000
  #define PP_CPU_CAPS_ALTIVEC 0x10000000
  #define PP_CPU_CAPS_AUTO  0x00080000
  
  #define PP_FORMAT         0x00000008
  #define PP_FORMAT_420    (0x00000011|PP_FORMAT)
  #define PP_FORMAT_422    (0x00000001|PP_FORMAT)
  #define PP_FORMAT_411    (0x00000002|PP_FORMAT)
  #define PP_FORMAT_444    (0x00000000|PP_FORMAT)
  #define PP_FORMAT_440    (0x00000010|PP_FORMAT)
  
  #define PP_PICT_TYPE_QP2  0x00000010 ///< MPEG2 style QScale
  
  /**
   * @}
   */
  
  #endif /* POSTPROC_POSTPROCESS_H */