mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
133 lines
4.3 KiB
C
133 lines
4.3 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 "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;
|
|
}
|