mirror of
https://github.com/FFmpeg/FFmpeg.git
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114 lines
3.3 KiB
C
114 lines
3.3 KiB
C
/*
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* Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file libavcodec/libdirac_libschro.c
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* functions common to libdirac and libschroedinger
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*/
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#include "libdirac_libschro.h"
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static const FfmpegDiracSchroVideoFormatInfo ff_dirac_schro_video_format_info[] = {
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{ 640, 480, 24000, 1001},
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{ 176, 120, 15000, 1001},
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{ 176, 144, 25, 2 },
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{ 352, 240, 15000, 1001},
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{ 352, 288, 25, 2 },
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{ 704, 480, 15000, 1001},
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{ 704, 576, 25, 2 },
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{ 720, 480, 30000, 1001},
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{ 720, 576, 25, 1 },
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{ 1280, 720, 60000, 1001},
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{ 1280, 720, 50, 1 },
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{ 1920, 1080, 30000, 1001},
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{ 1920, 1080, 25, 1 },
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{ 1920, 1080, 60000, 1001},
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{ 1920, 1080, 50, 1 },
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{ 2048, 1080, 24, 1 },
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{ 4096, 2160, 24, 1 },
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};
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unsigned int ff_dirac_schro_get_video_format_idx(AVCodecContext *avccontext)
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{
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unsigned int ret_idx = 0;
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unsigned int idx;
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unsigned int num_formats = sizeof(ff_dirac_schro_video_format_info) /
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sizeof(ff_dirac_schro_video_format_info[0]);
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for (idx = 1; idx < num_formats; ++idx) {
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const FfmpegDiracSchroVideoFormatInfo *vf = &ff_dirac_schro_video_format_info[idx];
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if (avccontext->width == vf->width &&
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avccontext->height == vf->height) {
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ret_idx = idx;
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if (avccontext->time_base.den == vf->frame_rate_num &&
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avccontext->time_base.num == vf->frame_rate_denom)
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return idx;
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}
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}
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return ret_idx;
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}
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void ff_dirac_schro_queue_init(FfmpegDiracSchroQueue *queue)
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{
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queue->p_head = queue->p_tail = NULL;
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queue->size = 0;
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}
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void ff_dirac_schro_queue_free(FfmpegDiracSchroQueue *queue,
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void (*free_func)(void *))
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{
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while (queue->p_head)
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free_func(ff_dirac_schro_queue_pop(queue));
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}
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int ff_dirac_schro_queue_push_back(FfmpegDiracSchroQueue *queue, void *p_data)
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{
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FfmpegDiracSchroQueueElement *p_new = av_mallocz(sizeof(FfmpegDiracSchroQueueElement));
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if (!p_new)
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return -1;
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p_new->data = p_data;
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if (!queue->p_head)
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queue->p_head = p_new;
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else
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queue->p_tail->next = p_new;
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queue->p_tail = p_new;
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++queue->size;
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return 0;
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}
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void *ff_dirac_schro_queue_pop(FfmpegDiracSchroQueue *queue)
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{
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FfmpegDiracSchroQueueElement *top = queue->p_head;
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if (top) {
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void *data = top->data;
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queue->p_head = queue->p_head->next;
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--queue->size;
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av_freep(&top);
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return data;
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}
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return NULL;
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}
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