[FFmpeg-devel] [PATCH]Support 48 and 64 bit png encoding

[Carl Eugen Hoyos]

Hi!

Patch depends on "Smplify 32bit png encoding".

Please comment, Carl Eugen
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diff --git a/libavcodec/pngenc.c b/libavcodec/pngenc.c
index 05b83e8..59eedd7 100644
--- a/libavcodec/pngenc.c
+++ b/libavcodec/pngenc.c
@@ -234,6 +234,14 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
 
     is_progressive = !!(avctx->flags & CODEC_FLAG_INTERLACED_DCT);
     switch(avctx->pix_fmt) {
+    case PIX_FMT_RGBA64BE:
+        bit_depth = 16;
+        color_type = PNG_COLOR_TYPE_RGB_ALPHA;
+        break;
+    case PIX_FMT_RGB48BE:
+        bit_depth = 16;
+        color_type = PNG_COLOR_TYPE_RGB;
+        break;
     case PIX_FMT_RGBA:
         bit_depth = 8;
         color_type = PNG_COLOR_TYPE_RGB_ALPHA;
@@ -410,6 +418,6 @@ 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_RGBA, PIX_FMT_PAL8, PIX_FMT_GRAY8, PIX_FMT_MONOBLACK, PIX_FMT_NONE},
+    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGBA, PIX_FMT_RGB48BE, PIX_FMT_RGBA64BE, PIX_FMT_PAL8, PIX_FMT_GRAY8, PIX_FMT_MONOBLACK, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("PNG image"),
 };