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Make PNG produce correct 8-bit pictures 

Originally committed as revision 6689 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2006-10-14 12:23:54 +00:00
parent 4ec0beaa59
commit ab9ce19170
1 changed files with 1 additions and 1 deletions
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2
libavcodec/png.c
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@ -850,7 +850,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
for(i = 0; i < 256; i++) {
v = palette[i];
alpha = v >> 24;
if (alpha != 0xff)
if (alpha && alpha != 0xff)
has_alpha = 1;
*alpha_ptr++ = alpha;
ptr[0] = v >> 16;