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Support gray8a png encoding.

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This commit is contained in:
Carl Eugen Hoyos 2012-01-15 21:53:01 +01:00
parent ea3abcd58f
commit ed10ca4c76
1 changed files with 5 additions and 1 deletions
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6
libavcodec/pngenc.c
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@ -264,6 +264,10 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
bit_depth = 8;
color_type = PNG_COLOR_TYPE_GRAY;
break;
case PIX_FMT_GRAY8A:
bit_depth = 8;
color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
break;
case PIX_FMT_MONOBLACK:
bit_depth = 1;
color_type = PNG_COLOR_TYPE_GRAY;
@ -443,6 +447,6 @@ AVCodec ff_png_encoder = {
.priv_data_size = sizeof(PNGEncContext),
.init = png_enc_init,
.encode = encode_frame,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB32, PIX_FMT_PAL8, PIX_FMT_GRAY8, PIX_FMT_MONOBLACK, PIX_FMT_NONE},
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB32, PIX_FMT_PAL8, PIX_FMT_GRAY8, PIX_FMT_GRAY8A, PIX_FMT_MONOBLACK, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("PNG image"),
};