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/*
* 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 libavcodec/libdirac_libschro.c
* 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 == NULL)
return -1;
p_new->data = p_data;
if (queue->p_head == NULL)
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 != NULL) {
void *data = top->data;
queue->p_head = queue->p_head->next;
--queue->size;
av_freep (&top);
return data;
}
return NULL;
}
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