video/fmt-conversion.c: remove unknown pixel format messages

This removes the messages printed on unknown pixel format messages.
Passing a mp_log to them would be too messy. Actually, this is a good
change, because in the past we often had trouble with these messages
printed too often (causing terminal spam etc.), and printing warnings or
error messages on the caller sides is much cleaner.

vd_lavc.c had a change earlier to print an error message if a decoder
outputs an unsupported pixel format.

1 files changed, 5 insertions, 0 deletions

diff --git a/video/image_writer.c b/video/image_writer.c
index 7e725fe729..e921cb7995 100644
--- a/video/image_writer.c
+++ b/video/image_writer.c
@@ -107,6 +107,11 @@ static int write_lavc(struct image_writer_ctx *ctx, mp_image_t *image, FILE *fp)
     avctx->width = image->w;
     avctx->height = image->h;
     avctx->pix_fmt = imgfmt2pixfmt(image->imgfmt);
+    if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
+        MP_ERR(ctx, "Image format %s not supported by lavc.\n",
+               mp_imgfmt_to_name(image->imgfmt));
+        goto error_exit;
+    }
     if (ctx->writer->lavc_codec == AV_CODEC_ID_PNG) {
         avctx->compression_level = ctx->opts->png_compression;
         avctx->prediction_method = ctx->opts->png_filter;