From f7cd9eed5dd26335a16baae68075e944b61f1c7b Mon Sep 17 00:00:00 2001 From: Anuradha Suraparaju Date: Sat, 3 May 2008 13:59:45 +0000 Subject: Add Dirac support through libschroedinger. patch by Anuradha Suraparaju, anuradha rd.bbc.co uk Originally committed as revision 13046 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/libschroedinger.c | 80 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 libavcodec/libschroedinger.c (limited to 'libavcodec/libschroedinger.c') diff --git a/libavcodec/libschroedinger.c b/libavcodec/libschroedinger.c new file mode 100644 index 0000000000..8c80c96aca --- /dev/null +++ b/libavcodec/libschroedinger.c @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2008 BBC, Anuradha Suraparaju + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser 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 + */ + +/** +* @file libschroedinger.c +* function definitions common to libschroedingerdec.c and libschroedingerenc.c +*/ + +#include "libdirac_libschro.h" +#include "libschroedinger.h" + +/** +* Schroedinger video preset table. Ensure that this tables matches up correctly +* with the ff_dirac_schro_video_format_info table in libdirac_libschro.c. +*/ +static const SchroVideoFormatEnum ff_schro_video_formats[]={ + SCHRO_VIDEO_FORMAT_CUSTOM , + SCHRO_VIDEO_FORMAT_QSIF , + SCHRO_VIDEO_FORMAT_QCIF , + SCHRO_VIDEO_FORMAT_SIF , + SCHRO_VIDEO_FORMAT_CIF , + SCHRO_VIDEO_FORMAT_4SIF , + SCHRO_VIDEO_FORMAT_4CIF , + SCHRO_VIDEO_FORMAT_SD480I_60 , + SCHRO_VIDEO_FORMAT_SD576I_50 , + SCHRO_VIDEO_FORMAT_HD720P_60 , + SCHRO_VIDEO_FORMAT_HD720P_50 , + SCHRO_VIDEO_FORMAT_HD1080I_60 , + SCHRO_VIDEO_FORMAT_HD1080I_50 , + SCHRO_VIDEO_FORMAT_HD1080P_60 , + SCHRO_VIDEO_FORMAT_HD1080P_50 , + SCHRO_VIDEO_FORMAT_DC2K_24 , + SCHRO_VIDEO_FORMAT_DC4K_24 , +}; + +SchroVideoFormatEnum ff_get_schro_video_format_preset(AVCodecContext *avccontext) +{ + unsigned int num_formats = sizeof(ff_schro_video_formats) / + sizeof(ff_schro_video_formats[0]); + + unsigned int idx = ff_dirac_schro_get_video_format_idx (avccontext); + + return (idx < num_formats) ? + ff_schro_video_formats[idx] : SCHRO_VIDEO_FORMAT_CUSTOM; +} + +int ff_get_schro_frame_format (SchroChromaFormat schro_pix_fmt, + SchroFrameFormat *schro_frame_fmt) +{ + unsigned int num_formats = sizeof(ffmpeg_schro_pixel_format_map) / + sizeof(ffmpeg_schro_pixel_format_map[0]); + + int idx; + + for (idx = 0; idx < num_formats; ++idx) { + if (ffmpeg_schro_pixel_format_map[idx].schro_pix_fmt == schro_pix_fmt) { + *schro_frame_fmt = + ffmpeg_schro_pixel_format_map[idx].schro_frame_fmt; + return 0; + } + } + return -1; +} -- cgit v1.2.3