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-rw-r--r--libavcodec/cdxl.c30
1 files changed, 18 insertions, 12 deletions
diff --git a/libavcodec/cdxl.c b/libavcodec/cdxl.c
index 679bf60108..13ad57c8c1 100644
--- a/libavcodec/cdxl.c
+++ b/libavcodec/cdxl.c
@@ -2,23 +2,31 @@
* CDXL video decoder
* Copyright (c) 2011-2012 Paul B Mahol
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+/**
+ * @file
+ * Commodore CDXL video decoder
+ * @author Paul B Mahol
+ */
+
+#define UNCHECKED_BITSTREAM_READER 1
+
#include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h"
#include "avcodec.h"
@@ -26,14 +34,13 @@
#include "internal.h"
#define BIT_PLANAR 0x00
-#define BYTE_PLANAR 0x20
-#define CHUNKY 0x40
+#define CHUNKY 0x20
+#define BYTE_PLANAR 0x40
#define BIT_LINE 0x80
#define BYTE_LINE 0xC0
typedef struct {
AVCodecContext *avctx;
- AVFrame frame;
int bpp;
int format;
int padded_bits;
@@ -64,7 +71,7 @@ static void import_palette(CDXLVideoContext *c, uint32_t *new_palette)
unsigned r = ((rgb >> 8) & 0xF) * 0x11;
unsigned g = ((rgb >> 4) & 0xF) * 0x11;
unsigned b = (rgb & 0xF) * 0x11;
- AV_WN32(&new_palette[i], (r << 16) | (g << 8) | b);
+ AV_WN32(&new_palette[i], (0xFFU << 24) | (r << 16) | (g << 8) | b);
}
}
@@ -116,6 +123,7 @@ static void cdxl_decode_rgb(CDXLVideoContext *c, AVFrame *frame)
{
uint32_t *new_palette = (uint32_t *)frame->data[1];
+ memset(frame->data[1], 0, AVPALETTE_SIZE);
import_palette(c, new_palette);
import_format(c, frame->linesize[0], frame->data[0]);
}
@@ -256,10 +264,8 @@ static int cdxl_decode_frame(AVCodecContext *avctx, void *data,
return AVERROR_PATCHWELCOME;
}
- if ((ret = ff_get_buffer(avctx, p, 0)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
return ret;
- }
p->pict_type = AV_PICTURE_TYPE_I;
if (encoding) {
@@ -283,7 +289,7 @@ static av_cold int cdxl_decode_end(AVCodecContext *avctx)
{
CDXLVideoContext *c = avctx->priv_data;
- av_free(c->new_video);
+ av_freep(&c->new_video);
return 0;
}