chroma.c
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:6k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * chroma.c: libavutil <-> libvlc conversion routines
- *****************************************************************************
- * Copyright (C) 1999-2008 the VideoLAN team
- * $Id: 6913a427a67b6bfc34b4030d4e7f271c653398e4 $
- *
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- * Gildas Bazin <gbazin@videolan.org>
- *
- * This program 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.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 021100301, USA.
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include <config.h>
- #endif
- #include <vlc_common.h>
- #include <vlc_codec.h>
- #ifdef HAVE_LIBAVCODEC_AVCODEC_H
- # include <libavcodec/avcodec.h>
- #elif defined(HAVE_FFMPEG_AVCODEC_H)
- # include <ffmpeg/avcodec.h>
- #else
- # include <avcodec.h>
- #endif
- #include "avcodec.h"
- /*****************************************************************************
- * Chroma fourcc -> ffmpeg_id mapping
- *****************************************************************************/
- #if defined(WORDS_BIGENDIAN)
- # define VLC_RGB_ES( fcc, leid, beid )
- { fcc, beid, 0, 0, 0 },
- #else
- # define VLC_RGB_ES( fcc, leid, beid )
- { fcc, leid, 0, 0, 0 },
- #endif
- #define VLC_RGB( fcc, leid, beid, rmask, gmask, bmask )
- { fcc, leid, rmask, gmask, bmask },
- { fcc, beid, bmask, gmask, rmask },
- VLC_RGB_ES( fcc, leid, beid )
- static const struct
- {
- vlc_fourcc_t i_chroma;
- int i_chroma_id;
- uint32_t i_rmask;
- uint32_t i_gmask;
- uint32_t i_bmask;
- } chroma_table[] =
- {
- /* Planar YUV formats */
- {VLC_FOURCC('I','4','4','4'), PIX_FMT_YUV444P, 0, 0, 0 },
- {VLC_FOURCC('J','4','4','4'), PIX_FMT_YUVJ444P, 0, 0, 0 },
- #if LIBAVUTIL_VERSION_INT >= ((49<<16)+(5<<8)+0)
- {VLC_FOURCC('I','4','4','0'), PIX_FMT_YUV440P, 0, 0, 0 },
- {VLC_FOURCC('J','4','4','0'), PIX_FMT_YUVJ440P, 0, 0, 0 },
- #endif
- {VLC_FOURCC('I','4','2','2'), PIX_FMT_YUV422P, 0, 0, 0 },
- {VLC_FOURCC('J','4','2','2'), PIX_FMT_YUVJ422P, 0, 0, 0 },
- {VLC_FOURCC('I','4','2','0'), PIX_FMT_YUV420P, 0, 0, 0 },
- {VLC_FOURCC('Y','V','1','2'), PIX_FMT_YUV420P, 0, 0, 0 },
- {VLC_FOURCC('I','Y','U','V'), PIX_FMT_YUV420P, 0, 0, 0 },
- {VLC_FOURCC('J','4','2','0'), PIX_FMT_YUVJ420P, 0, 0, 0 },
- {VLC_FOURCC('I','4','1','1'), PIX_FMT_YUV411P, 0, 0, 0 },
- {VLC_FOURCC('I','4','1','0'), PIX_FMT_YUV410P, 0, 0, 0 },
- {VLC_FOURCC('Y','V','U','9'), PIX_FMT_YUV410P, 0, 0, 0 },
- {VLC_FOURCC('N','V','1','2'), PIX_FMT_NV12, 0, 0, 0 },
- {VLC_FOURCC('N','V','2','1'), PIX_FMT_NV21, 0, 0, 0 },
- /* Packed YUV formats */
- {VLC_FOURCC('Y','U','Y','2'), PIX_FMT_YUYV422, 0, 0, 0 },
- {VLC_FOURCC('Y','U','Y','V'), PIX_FMT_YUYV422, 0, 0, 0 },
- {VLC_FOURCC('U','Y','V','Y'), PIX_FMT_UYVY422, 0, 0, 0 },
- {VLC_FOURCC('Y','4','1','1'), PIX_FMT_UYYVYY411, 0, 0, 0 },
- /* Packed RGB formats */
- VLC_RGB( VLC_FOURCC('R','G','B','4'), PIX_FMT_RGB4, PIX_FMT_BGR4, 0x10, 0x06, 0x01 )
- VLC_RGB( VLC_FOURCC('R','G','B','8'), PIX_FMT_RGB8, PIX_FMT_BGR8, 0xC0, 0x38, 0x07 )
- VLC_RGB( VLC_FOURCC('R','V','1','5'), PIX_FMT_BGR555, PIX_FMT_RGB555, 0x7c00, 0x03e0, 0x001f )
- VLC_RGB( VLC_FOURCC('R','V','1','6'), PIX_FMT_BGR565, PIX_FMT_RGB565, 0xf800, 0x07e0, 0x001f )
- VLC_RGB( VLC_FOURCC('R','V','2','4'), PIX_FMT_BGR24, PIX_FMT_RGB24, 0xff0000, 0x00ff00, 0x0000ff )
- VLC_RGB( VLC_FOURCC('R','V','3','2'), PIX_FMT_RGB32, PIX_FMT_BGR32, 0x00ff0000, 0x0000ff00, 0x000000ff )
- VLC_RGB( VLC_FOURCC('R','V','3','2'), PIX_FMT_RGB32_1, PIX_FMT_BGR32_1, 0xff000000, 0x00ff0000, 0x0000ff00 )
- #if defined(PIX_FMT_RGBA)
- {VLC_FOURCC('R','G','B','A'), PIX_FMT_RGBA, 0xff000000, 0x00ff0000, 0x0000ff00},
- #endif
- {VLC_FOURCC('G','R','E','Y'), PIX_FMT_GRAY8, 0, 0, 0},
- /* Paletized RGB */
- {VLC_FOURCC('R','G','B','P'), PIX_FMT_PAL8, 0, 0, 0},
- { 0, 0, 0, 0, 0 }
- };
- int TestFfmpegChroma( const int i_ffmpeg_id, const vlc_fourcc_t i_vlc_fourcc )
- {
- for( int i = 0; chroma_table[i].i_chroma != 0; i++ )
- {
- if( chroma_table[i].i_chroma == i_vlc_fourcc || chroma_table[i].i_chroma_id == i_ffmpeg_id )
- return VLC_SUCCESS;
- }
- return VLC_EGENERIC;
- }
- /* FIXME special case the RGB formats */
- int GetFfmpegChroma( int *i_ffmpeg_chroma, const video_format_t fmt )
- {
- for( int i = 0; chroma_table[i].i_chroma != 0; i++ )
- {
- if( chroma_table[i].i_chroma == fmt.i_chroma )
- {
- if( chroma_table[i].i_rmask == fmt.i_rmask &&
- chroma_table[i].i_gmask == fmt.i_gmask &&
- chroma_table[i].i_bmask == fmt.i_bmask )
- {
- *i_ffmpeg_chroma = chroma_table[i].i_chroma_id;
- return VLC_SUCCESS;
- }
- }
- }
- return VLC_EGENERIC;
- }
- int GetVlcChroma( video_format_t *fmt, const int i_ffmpeg_chroma )
- {
- /* TODO FIXME for rgb format we HAVE to set rgb mask/shift */
- for( int i = 0; chroma_table[i].i_chroma != 0; i++ )
- {
- if( chroma_table[i].i_chroma_id == i_ffmpeg_chroma )
- {
- fmt->i_rmask = chroma_table[i].i_rmask;
- fmt->i_gmask = chroma_table[i].i_gmask;
- fmt->i_bmask = chroma_table[i].i_bmask;
- fmt->i_chroma = chroma_table[i].i_chroma;
- return VLC_SUCCESS;
- }
- }
- return VLC_EGENERIC;
- }