mirror of https://git.ffmpeg.org/ffmpeg.git
222 lines
6.5 KiB
C
222 lines
6.5 KiB
C
/*
|
|
* Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; 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 "libavutil/attributes.h"
|
|
#include "libavutil/mem.h"
|
|
#include "libschroedinger.h"
|
|
|
|
static const SchroVideoFormatInfo ff_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 },
|
|
};
|
|
|
|
static unsigned int get_video_format_idx(AVCodecContext *avctx)
|
|
{
|
|
unsigned int ret_idx = 0;
|
|
unsigned int idx;
|
|
unsigned int num_formats = sizeof(ff_schro_video_format_info) /
|
|
sizeof(ff_schro_video_format_info[0]);
|
|
|
|
for (idx = 1; idx < num_formats; ++idx) {
|
|
const SchroVideoFormatInfo *vf = &ff_schro_video_format_info[idx];
|
|
if (avctx->width == vf->width &&
|
|
avctx->height == vf->height) {
|
|
ret_idx = idx;
|
|
if (avctx->time_base.den == vf->frame_rate_num &&
|
|
avctx->time_base.num == vf->frame_rate_denom)
|
|
return idx;
|
|
}
|
|
}
|
|
return ret_idx;
|
|
}
|
|
|
|
av_cold void ff_schro_queue_init(FFSchroQueue *queue)
|
|
{
|
|
queue->p_head = queue->p_tail = NULL;
|
|
queue->size = 0;
|
|
}
|
|
|
|
void ff_schro_queue_free(FFSchroQueue *queue, void (*free_func)(void *))
|
|
{
|
|
while (queue->p_head)
|
|
free_func(ff_schro_queue_pop(queue));
|
|
}
|
|
|
|
int ff_schro_queue_push_back(FFSchroQueue *queue, void *p_data)
|
|
{
|
|
FFSchroQueueElement *p_new = av_mallocz(sizeof(FFSchroQueueElement));
|
|
|
|
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_schro_queue_pop(FFSchroQueue *queue)
|
|
{
|
|
FFSchroQueueElement *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;
|
|
}
|
|
|
|
/**
|
|
* Schroedinger video preset table. Ensure that this tables matches up correctly
|
|
* with the ff_schro_video_format_info table.
|
|
*/
|
|
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 *avctx)
|
|
{
|
|
unsigned int num_formats = sizeof(ff_schro_video_formats) /
|
|
sizeof(ff_schro_video_formats[0]);
|
|
|
|
unsigned int idx = get_video_format_idx(avctx);
|
|
|
|
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 free_schro_frame(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 *avctx,
|
|
SchroFrameFormat schro_frame_fmt)
|
|
{
|
|
AVPicture *p_pic;
|
|
SchroFrame *p_frame;
|
|
int y_width, uv_width;
|
|
int y_height, uv_height;
|
|
int i;
|
|
|
|
y_width = avctx->width;
|
|
y_height = avctx->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));
|
|
if (!p_pic)
|
|
return NULL;
|
|
avpicture_alloc(p_pic, avctx->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, free_schro_frame, (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;
|
|
}
|