/* * 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 * functions common to libdirac and libschroedinger */ #include "libdirac_libschro.h" static const FfmpegDiracSchroVideoFormatInfo ff_dirac_schro_video_format_info[] = { { 640, 480, 24000, 1001}, { 176, 120, 15000, 1001}, { 176, 144, 25, 2 }, { 352, 240, 15000, 1001}, { 352, 288, 25, 2 }, { 704, 480, 15000, 1001}, { 704, 576, 25, 2 }, { 720, 480, 30000, 1001}, { 720, 576, 25, 1 }, { 1280, 720, 60000, 1001}, { 1280, 720, 50, 1 }, { 1920, 1080, 30000, 1001}, { 1920, 1080, 25, 1 }, { 1920, 1080, 60000, 1001}, { 1920, 1080, 50, 1 }, { 2048, 1080, 24, 1 }, { 4096, 2160, 24, 1 }, }; unsigned int ff_dirac_schro_get_video_format_idx(AVCodecContext *avccontext) { unsigned int ret_idx = 0; unsigned int idx; unsigned int num_formats = sizeof(ff_dirac_schro_video_format_info) / sizeof(ff_dirac_schro_video_format_info[0]); for (idx = 1; idx < num_formats; ++idx) { const FfmpegDiracSchroVideoFormatInfo *vf = &ff_dirac_schro_video_format_info[idx]; if (avccontext->width == vf->width && avccontext->height == vf->height) { ret_idx = idx; if (avccontext->time_base.den == vf->frame_rate_num && avccontext->time_base.num == vf->frame_rate_denom) return idx; } } return ret_idx; } void ff_dirac_schro_queue_init(FfmpegDiracSchroQueue *queue) { queue->p_head = queue->p_tail = NULL; queue->size = 0; } void ff_dirac_schro_queue_free(FfmpegDiracSchroQueue *queue, void (*free_func)(void *)) { while (queue->p_head) free_func(ff_dirac_schro_queue_pop(queue)); } int ff_dirac_schro_queue_push_back(FfmpegDiracSchroQueue *queue, void *p_data) { FfmpegDiracSchroQueueElement *p_new = av_mallocz(sizeof(FfmpegDiracSchroQueueElement)); if (!p_new) return -1; p_new->data = p_data; if (!queue->p_head) queue->p_head = p_new; else queue->p_tail->next = p_new; queue->p_tail = p_new; ++queue->size; return 0; } void *ff_dirac_schro_queue_pop(FfmpegDiracSchroQueue *queue) { FfmpegDiracSchroQueueElement *top = queue->p_head; if (top) { void *data = top->data; queue->p_head = queue->p_head->next; --queue->size; av_freep(&top); return data; } return NULL; }