/*
+ * Creative YUV (CYUV) Video Decoder
+ * by Mike Melanson (melanson@pcisys.net)
+ * based on "Creative YUV (CYUV) stream format for AVI":
+ * http://www.csse.monash.edu.au/~timf/videocodec/cyuv.txt
*
* Copyright (C) 2003 the ffmpeg project
*
- * This library is free software; you can redistribute it and/or
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Creative YUV (CYUV) Video Decoder
- * by Mike Melanson (melanson@pcisys.net)
- * based on "Creative YUV (CYUV) stream format for AVI":
- * http://www.csse.monash.edu.au/~timf/videocodec/cyuv.txt
- *
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file cyuv.c
+ * @file cyuv.c
* Creative YUV (CYUV) Video Decoder.
*/
-
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-#include "common.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
s->avctx = avctx;
s->width = avctx->width;
+ /* width needs to be divisible by 4 for this codec to work */
+ if (s->width & 0x3)
+ return -1;
s->height = avctx->height;
avctx->pix_fmt = PIX_FMT_YUV411P;
- avctx->has_b_frames = 0;
return 0;
}
-static int cyuv_decode_frame(AVCodecContext *avctx,
+static int cyuv_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
uint8_t *buf, int buf_size)
{
int v_ptr;
/* prediction error tables (make it clear that they are signed values) */
- signed char *y_table = buf + 0;
- signed char *u_table = buf + 16;
- signed char *v_table = buf + 32;
+ signed char *y_table = (signed char*)buf + 0;
+ signed char *u_table = (signed char*)buf + 16;
+ signed char *v_table = (signed char*)buf + 32;
unsigned char y_pred, u_pred, v_pred;
int stream_ptr;
/* iterate through each line in the height */
for (y_ptr = 0, u_ptr = 0, v_ptr = 0;
- y_ptr < (s->height * s->frame.linesize[0]);
+ y_ptr < (s->height * s->frame.linesize[0]);
y_ptr += s->frame.linesize[0] - s->width,
u_ptr += s->frame.linesize[1] - s->width / 4,
v_ptr += s->frame.linesize[2] - s->width / 4) {