// Use the `simple_decoder` example to decode this sample, and observe
// the change in the image at frames 22, 33, and 44.
+#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
memset(&info, 0, sizeof(info));
encoder = get_vpx_encoder_by_name(argv[1]);
- if (!encoder)
+ if (encoder == NULL) {
die("Unsupported codec.");
-
+ }
+ assert(encoder != NULL);
info.codec_fourcc = encoder->fourcc;
info.frame_width = strtol(argv[2], NULL, 0);
info.frame_height = strtol(argv[3], NULL, 0);