avoid buf_size == 0 checks in every decoder

Originally committed as revision 3872 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 0 insertions, 12 deletions

diff --git a/libavcodec/mjpeg.c b/libavcodec/mjpeg.c
index 2edd90bd43..6ea01b3b84 100644
--- a/libavcodec/mjpeg.c
+++ b/libavcodec/mjpeg.c
@@ -1826,10 +1826,6 @@ static int mjpeg_decode_frame(AVCodecContext *avctx,
     int start_code;
     AVFrame *picture = data;
 
-    /* no supplementary picture */
-    if (buf_size == 0)
-        return 0;
-
     buf_ptr = buf;
     buf_end = buf + buf_size;
     while (buf_ptr < buf_end) {
@@ -2002,10 +1998,6 @@ static int mjpegb_decode_frame(AVCodecContext *avctx,
     uint32_t dqt_offs, dht_offs, sof_offs, sos_offs, second_field_offs;
     uint32_t field_size, sod_offs;
 
-    /* no supplementary picture */
-    if (buf_size == 0)
-        return 0;
-
     buf_ptr = buf;
     buf_end = buf + buf_size;
     
@@ -2115,10 +2107,6 @@ static int sp5x_decode_frame(AVCodecContext *avctx,
     uint8_t *buf_ptr, *buf_end, *recoded;
     int i = 0, j = 0;
 
-    /* no supplementary picture */
-    if (buf_size == 0)
-        return 0;
-
     if (!avctx->width || !avctx->height)
 	return -1;