avcodec: add cdtoons decoder

This adds a decoder for Broderbund's sprite-based QuickTime CDToons
codec, based on the decoder I wrote for ScummVM.

Signed-off-by: Alyssa Milburn <amilburn@zall.org>

libavcodec/codec_desc.c

@@ -1747,6 +1747,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
         .long_name = NULL_IF_CONFIG_SMALL("MidiVid Archive Codec"),
         .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
     },
+    {
+        .id        = AV_CODEC_ID_CDTOONS,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cdtoons",
+        .long_name = NULL_IF_CONFIG_SMALL("CDToons video"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
 
     /* various PCM "codecs" */
     {