/* * Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com > * * 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 * function definitions common to libschroedinger decoder and encoder */ #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(schro_pixel_format_map) / sizeof(schro_pixel_format_map[0]); int idx; for (idx = 0; idx < num_formats; ++idx) { if (schro_pixel_format_map[idx].schro_pix_fmt == schro_pix_fmt) { *schro_frame_fmt = schro_pixel_format_map[idx].schro_frame_fmt; return 0; } } return -1; } static void FreeSchroFrame(SchroFrame *frame, void *priv) { AVPicture *p_pic = priv; if (!p_pic) return; avpicture_free(p_pic); av_freep(&p_pic); } SchroFrame *ff_create_schro_frame(AVCodecContext *avccontext, SchroFrameFormat schro_frame_fmt) { AVPicture *p_pic; SchroFrame *p_frame; int y_width, uv_width; int y_height, uv_height; int i; y_width = avccontext->width; y_height = avccontext->height; uv_width = y_width >> (SCHRO_FRAME_FORMAT_H_SHIFT(schro_frame_fmt)); uv_height = y_height >> (SCHRO_FRAME_FORMAT_V_SHIFT(schro_frame_fmt)); p_pic = av_mallocz(sizeof(AVPicture)); avpicture_alloc(p_pic, avccontext->pix_fmt, y_width, y_height); p_frame = schro_frame_new(); p_frame->format = schro_frame_fmt; p_frame->width = y_width; p_frame->height = y_height; schro_frame_set_free_callback(p_frame, FreeSchroFrame, (void *)p_pic); for (i = 0; i < 3; ++i) { p_frame->components[i].width = i ? uv_width : y_width; p_frame->components[i].stride = p_pic->linesize[i]; p_frame->components[i].height = i ? uv_height : y_height; p_frame->components[i].length = p_frame->components[i].stride * p_frame->components[i].height; p_frame->components[i].data = p_pic->data[i]; if (i) { p_frame->components[i].v_shift = SCHRO_FRAME_FORMAT_V_SHIFT(p_frame->format); p_frame->components[i].h_shift = SCHRO_FRAME_FORMAT_H_SHIFT(p_frame->format); } } return p_frame; }