FFmpeg: libavutil/utils.c Source File

00001 /*
00002  * This file is part of FFmpeg.
00003  *
00004  * FFmpeg is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Lesser General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2.1 of the License, or (at your option) any later version.
00008  *
00009  * FFmpeg is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Lesser General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Lesser General Public
00015  * License along with FFmpeg; if not, write to the Free Software
00016  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00017  */
00018 
00019 #include "config.h"
00020 #include "avutil.h"
00021 #include "avassert.h"
00022 #include "samplefmt.h"
00023 
00029 unsigned avutil_version(void)
00030 {
00031     av_assert0(PIX_FMT_VDA_VLD == 81); //check if the pix fmt enum has not had anything inserted or removed by mistake
00032     av_assert0(AV_SAMPLE_FMT_DBLP == 9);
00033     av_assert0(AVMEDIA_TYPE_ATTACHMENT == 4);
00034     av_assert0(AV_PICTURE_TYPE_BI == 7);
00035 
00036     return LIBAVUTIL_VERSION_INT;
00037 }
00038 
00039 const char *avutil_configuration(void)
00040 {
00041     return FFMPEG_CONFIGURATION;
00042 }
00043 
00044 const char *avutil_license(void)
00045 {
00046 #define LICENSE_PREFIX "libavutil license: "
00047     return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
00048 }
00049 
00050 const char *av_get_media_type_string(enum AVMediaType media_type)
00051 {
00052     switch (media_type) {
00053     case AVMEDIA_TYPE_VIDEO:      return "video";
00054     case AVMEDIA_TYPE_AUDIO:      return "audio";
00055     case AVMEDIA_TYPE_DATA:       return "data";
00056     case AVMEDIA_TYPE_SUBTITLE:   return "subtitle";
00057     case AVMEDIA_TYPE_ATTACHMENT: return "attachment";
00058     default:                      return NULL;
00059     }
00060 }
00061 
00062 char av_get_picture_type_char(enum AVPictureType pict_type)
00063 {
00064     switch (pict_type) {
00065     case AV_PICTURE_TYPE_I:  return 'I';
00066     case AV_PICTURE_TYPE_P:  return 'P';
00067     case AV_PICTURE_TYPE_B:  return 'B';
00068     case AV_PICTURE_TYPE_S:  return 'S';
00069     case AV_PICTURE_TYPE_SI: return 'i';
00070     case AV_PICTURE_TYPE_SP: return 'p';
00071     case AV_PICTURE_TYPE_BI: return 'b';
00072     default:                 return '?';
00073     }
00074 }