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authorJan Klemkow <j.klemkow@wemelug.de>2013-02-02 03:48:42 +0100
committerJan Klemkow <j.klemkow@wemelug.de>2013-02-02 03:48:42 +0100
commit4973beef6d094ea0d43bd1a3b1d5ce6b9c18d2f6 (patch)
tree7d79db3bf3e733774c170199a148f3bbeada5940 /src
parentd430fe22bd5de5b9311e7bf1379f57f4527dadd4 (diff)
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add tool to recognize a cut inside a video
Diffstat (limited to 'src')
-rw-r--r--src/findcut.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/src/findcut.c b/src/findcut.c
new file mode 100644
index 0000000..2b2bc71
--- /dev/null
+++ b/src/findcut.c
@@ -0,0 +1,88 @@
+#define _XOPEN_SOURCE 500
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include "video_decode.h"
+#include "util.h"
+
+static void
+usage(void)
+{
+ fprintf(stderr, "findcut [-dh] [-t THRESHOLD] VIDEO CUT\n"
+ "\n"
+ "OPTIONS\n"
+ "\t-d\tprint diff for every frame\n"
+ "\t-h\tprint this help message\n"
+ "\t-t\tthreshold matching\n"
+ "\t-T\tprint timestamp of every frame\n");
+
+ exit(EXIT_FAILURE);
+}
+
+int
+main(int argc, char **argv)
+{
+ struct video_decode *video_vd;
+ struct video_decode *cut_vd;
+ struct video_frame *cur_frame = NULL, *cut_frame = NULL;
+ int ret, ch;
+ int diff_flag = 0, time_flag = 0;
+ int64_t timestamp = 0;
+ int64_t threshold = 10;
+ double diff = 0.0;
+
+ while ((ch = getopt(argc, argv, "dtTh")) != -1) {
+ switch (ch) {
+ case 'd':
+ diff_flag = 1; /* print diff of every frame */
+ break;
+ case 't':
+ threshold = strtol(optarg, NULL, 10);
+ break;
+ case 'T':
+ time_flag = 1;
+ break;
+ case 'h':
+ default:
+ usage();
+ /* NOTREACHED */
+ }
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc < 2)
+ usage();
+
+ ret = video_decode_init(&cut_vd, argv[1], timestamp);
+ if (ret < 0)
+ return -ret;
+
+ /* just get first frame of the cut */
+ video_decode_get_frame(cut_vd, &cut_frame);
+
+ ret = video_decode_init(&video_vd, argv[0], timestamp);
+ if (ret < 0)
+ return -ret;
+
+ for (int i = 0; video_decode_get_frame(video_vd, &cur_frame) > 0; ++i) {
+ diff = frame_diff(cut_frame, cur_frame);
+
+ if (diff <= threshold || diff_flag) {
+ if (time_flag)
+ printf("%lld", cur_frame->dts);
+ else
+ print_time(cur_frame->dts);
+
+ printf(" %f\n", diff);
+ }
+ }
+
+ video_decode_free_frame(&cur_frame);
+ video_decode_free_frame(&cut_frame);
+ video_decode_uninit(&video_vd);
+ video_decode_uninit(&cut_vd);
+ return EXIT_SUCCESS;
+}