mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-12 19:18:44 +02:00
8a3227968c
Originally committed as revision 27190 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
95 lines
3.4 KiB
C
95 lines
3.4 KiB
C
/*
|
|
* Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
|
|
*
|
|
* Blackfin software video scaler operations
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <inttypes.h>
|
|
#include <assert.h>
|
|
#include "config.h"
|
|
#ifdef HAVE_MALLOC_H
|
|
#include <malloc.h>
|
|
#endif
|
|
#include <unistd.h>
|
|
#include "rgb2rgb.h"
|
|
#include "swscale.h"
|
|
#include "swscale_internal.h"
|
|
|
|
#ifdef __FDPIC__
|
|
#define L1CODE __attribute__ ((l1_text))
|
|
#else
|
|
#define L1CODE
|
|
#endif
|
|
|
|
extern int ff_bfin_uyvytoyv12 (const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
|
|
long width, long height,
|
|
long lumStride, long chromStride, long srcStride) L1CODE;
|
|
|
|
extern int ff_bfin_yuyvtoyv12 (const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
|
|
long width, long height,
|
|
long lumStride, long chromStride, long srcStride) L1CODE;
|
|
|
|
static int uyvytoyv12_unscaled (SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[])
|
|
{
|
|
uint8_t *dsty = dst[0] + dstStride[0]*srcSliceY;
|
|
uint8_t *dstu = dst[1] + dstStride[1]*srcSliceY/2;
|
|
uint8_t *dstv = dst[2] + dstStride[2]*srcSliceY/2;
|
|
uint8_t *ip = src[0] + srcStride[0]*srcSliceY;
|
|
int w = dstStride[0];
|
|
|
|
ff_bfin_uyvytoyv12 (ip, dsty, dstu, dstv, w, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
|
|
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int yuyvtoyv12_unscaled (SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[])
|
|
{
|
|
uint8_t *dsty = dst[0] + dstStride[0]*srcSliceY;
|
|
uint8_t *dstu = dst[1] + dstStride[1]*srcSliceY/2;
|
|
uint8_t *dstv = dst[2] + dstStride[2]*srcSliceY/2;
|
|
uint8_t *ip = src[0] + srcStride[0]*srcSliceY;
|
|
int w = dstStride[0];
|
|
|
|
ff_bfin_yuyvtoyv12 (ip, dsty, dstu, dstv, w, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
|
|
|
|
return srcSliceH;
|
|
}
|
|
|
|
|
|
void ff_bfin_get_unscaled_swscale (SwsContext *c)
|
|
{
|
|
SwsFunc swScale = c->swScale;
|
|
if (c->flags & SWS_CPU_CAPS_BFIN)
|
|
if (c->dstFormat == PIX_FMT_YUV420P)
|
|
if (c->srcFormat == PIX_FMT_UYVY422) {
|
|
av_log (NULL, AV_LOG_VERBOSE, "selecting Blackfin optimized uyvytoyv12_unscaled\n");
|
|
c->swScale = uyvytoyv12_unscaled;
|
|
}
|
|
if (c->dstFormat == PIX_FMT_YUV420P)
|
|
if (c->srcFormat == PIX_FMT_YUYV422) {
|
|
av_log (NULL, AV_LOG_VERBOSE, "selecting Blackfin optimized yuyvtoyv12_unscaled\n");
|
|
c->swScale = yuyvtoyv12_unscaled;
|
|
}
|
|
}
|