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authorMans Rullgard <mans@mansr.com>2011-06-01 17:26:27 +0100
committerMans Rullgard <mans@mansr.com>2011-06-02 20:06:00 +0100
commite65ab9d94f1c8d8893e32d90467d9525625d306a (patch)
tree032ea02dc36a1510af2807848d961f024e8a052e /libavcodec/pngdec.c
parent808d8ff6bb92e641cdd99a0b06767eabd707b925 (diff)
downloadffmpeg-e65ab9d94f1c8d8893e32d90467d9525625d306a.tar.gz
Remove unused variables
Diffstat (limited to 'libavcodec/pngdec.c')
-rw-r--r--libavcodec/pngdec.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index 39dbfdcc6f..7477f6746b 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -397,7 +397,7 @@ static int decode_frame(AVCodecContext *avctx,
AVFrame *p;
uint8_t *crow_buf_base = NULL;
uint32_t tag, length;
- int ret, crc;
+ int ret;
FFSWAP(AVFrame *, s->current_picture, s->last_picture);
avctx->coded_frame= s->current_picture;
@@ -451,7 +451,7 @@ static int decode_frame(AVCodecContext *avctx,
s->compression_type = *s->bytestream++;
s->filter_type = *s->bytestream++;
s->interlace_type = *s->bytestream++;
- crc = bytestream_get_be32(&s->bytestream);
+ s->bytestream += 4; /* crc */
s->state |= PNG_IHDR;
av_dlog(avctx, "width=%d height=%d depth=%d color_type=%d compression_type=%d filter_type=%d interlace_type=%d\n",
s->width, s->height, s->bit_depth, s->color_type,
@@ -547,8 +547,7 @@ static int decode_frame(AVCodecContext *avctx,
s->state |= PNG_IDAT;
if (png_decode_idat(s, length) < 0)
goto fail;
- /* skip crc */
- crc = bytestream_get_be32(&s->bytestream);
+ s->bytestream += 4; /* crc */
break;
case MKTAG('P', 'L', 'T', 'E'):
{
@@ -568,7 +567,7 @@ static int decode_frame(AVCodecContext *avctx,
s->palette[i] = (0xff << 24);
}
s->state |= PNG_PLTE;
- crc = bytestream_get_be32(&s->bytestream);
+ s->bytestream += 4; /* crc */
}
break;
case MKTAG('t', 'R', 'N', 'S'):
@@ -584,13 +583,13 @@ static int decode_frame(AVCodecContext *avctx,
v = *s->bytestream++;
s->palette[i] = (s->palette[i] & 0x00ffffff) | (v << 24);
}
- crc = bytestream_get_be32(&s->bytestream);
+ s->bytestream += 4; /* crc */
}
break;
case MKTAG('I', 'E', 'N', 'D'):
if (!(s->state & PNG_ALLIMAGE))
goto fail;
- crc = bytestream_get_be32(&s->bytestream);
+ s->bytestream += 4; /* crc */
goto exit_loop;
default:
/* skip tag */