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png: allow encoding 16-bit grayscale

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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Ian Taylor 2013-08-12 22:02:55 -04:00 committed by Luca Barbato
parent 3ca5df36a5
commit 46dee21a32
1 changed files with 5 additions and 0 deletions
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5
libavcodec/pngenc.c
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@ -255,6 +255,10 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
bit_depth = 8; bit_depth = 8;
color_type = PNG_COLOR_TYPE_RGB; color_type = PNG_COLOR_TYPE_RGB;
break; break;
case AV_PIX_FMT_GRAY16BE:
bit_depth = 16;
color_type = PNG_COLOR_TYPE_GRAY;
break;
case AV_PIX_FMT_GRAY8: case AV_PIX_FMT_GRAY8:
bit_depth = 8; bit_depth = 8;
color_type = PNG_COLOR_TYPE_GRAY; color_type = PNG_COLOR_TYPE_GRAY;
@ -460,6 +464,7 @@ AVCodec ff_png_encoder = {
.encode2 = encode_frame, .encode2 = encode_frame,
.pix_fmts = (const enum AVPixelFormat[]){ .pix_fmts = (const enum AVPixelFormat[]){
AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB32, AV_PIX_FMT_PAL8, AV_PIX_FMT_GRAY8, AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB32, AV_PIX_FMT_PAL8, AV_PIX_FMT_GRAY8,
AV_PIX_FMT_GRAY16BE,
AV_PIX_FMT_MONOBLACK, AV_PIX_FMT_NONE AV_PIX_FMT_MONOBLACK, AV_PIX_FMT_NONE
}, },
.long_name = NULL_IF_CONFIG_SMALL("PNG (Portable Network Graphics) image"), .long_name = NULL_IF_CONFIG_SMALL("PNG (Portable Network Graphics) image"),