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  1. /*
  2.  * Copyright (c) 2013 Georg Martius <georg dot martius at web dot de>
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2.1 of the License, or (at your option) any later version.
  10.  *
  11.  * FFmpeg is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with FFmpeg; if not, write to the Free Software
  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19.  */
  20.  
  21. #include "vidstabutils.h"
  22.  
  23. /** convert AV's pixelformat to vid.stab pixelformat */
  24. VSPixelFormat av_2_vs_pixel_format(AVFilterContext *ctx, enum AVPixelFormat pf)
  25. {
  26.     switch (pf) {
  27.     case AV_PIX_FMT_YUV420P:  return PF_YUV420P;
  28.     case AV_PIX_FMT_YUV422P:  return PF_YUV422P;
  29.     case AV_PIX_FMT_YUV444P:  return PF_YUV444P;
  30.     case AV_PIX_FMT_YUV410P:  return PF_YUV410P;
  31.     case AV_PIX_FMT_YUV411P:  return PF_YUV411P;
  32.     case AV_PIX_FMT_YUV440P:  return PF_YUV440P;
  33.     case AV_PIX_FMT_YUVA420P: return PF_YUVA420P;
  34.     case AV_PIX_FMT_GRAY8:    return PF_GRAY8;
  35.     case AV_PIX_FMT_RGB24:    return PF_RGB24;
  36.     case AV_PIX_FMT_BGR24:    return PF_BGR24;
  37.     case AV_PIX_FMT_RGBA:     return PF_RGBA;
  38.     default:
  39.         av_log(ctx, AV_LOG_ERROR, "cannot deal with pixel format %i\n", pf);
  40.         return PF_NONE;
  41.     }
  42. }
  43.  
  44. /** struct to hold a valid context for logging from within vid.stab lib */
  45. typedef struct {
  46.     const AVClass *class;
  47. } VS2AVLogCtx;
  48.  
  49. /** wrapper to log vs_log into av_log */
  50. static int vs_2_av_log_wrapper(int type, const char *tag, const char *format, ...)
  51. {
  52.     va_list ap;
  53.     VS2AVLogCtx ctx;
  54.     AVClass class = {
  55.       .class_name = tag,
  56.       .item_name  = av_default_item_name,
  57.       .option     = 0,
  58.       .version    = LIBAVUTIL_VERSION_INT,
  59.       .category   = AV_CLASS_CATEGORY_FILTER,
  60.     };
  61.     ctx.class = &class;
  62.     va_start(ap, format);
  63.     av_vlog(&ctx, type, format, ap);
  64.     va_end(ap);
  65.     return VS_OK;
  66. }
  67.  
  68. /** sets the memory allocation function and logging constants to av versions */
  69. void vs_set_mem_and_log_functions(void)
  70. {
  71.     vs_malloc  = av_malloc;
  72.     vs_zalloc  = av_mallocz;
  73.     vs_realloc = av_realloc;
  74.     vs_free    = av_free;
  75.  
  76.     VS_ERROR_TYPE = AV_LOG_ERROR;
  77.     VS_WARN_TYPE  = AV_LOG_WARNING;
  78.     VS_INFO_TYPE  = AV_LOG_INFO;
  79.     VS_MSG_TYPE   = AV_LOG_VERBOSE;
  80.  
  81.     vs_log   = vs_2_av_log_wrapper;
  82.  
  83.     VS_ERROR = 0;
  84.     VS_OK    = 1;
  85. }
  86.