feat(png): Add handler for tRNS ancillary chunk in PNG processing

1 files changed, 6 insertions, 1 deletions

diff --git a/src/format/image/png.c b/src/format/image/png.c
index 162d5ee..d883863 100644
--- a/src/format/image/png.c
+++ b/src/format/image/png.c
@@ -309,4 +309,9 @@ ff_result ff_png_end_handler(uint8_t *buf, size_t len, ff_png_ctx *ctx)
     ff_dprintf("png: all chunks received\n");
 
     return FF_RESULT_OK;
-}
\ No newline at end of file
+}
+
+ff_result ff_png_trans_handler(uint8_t *buf, size_t len, ff_png_ctx *ctx)
+{
+    ff_dprintf("png: PLTE chunk received (len=%zu)\n", len);
+}