1 files changed, 120 insertions, 0 deletions
diff --git a/tools/fourcc2pixfmt.c b/tools/fourcc2pixfmt.c
new file mode 100644
index 0000000000..84d5af3eee
--- /dev/null
+++ b/tools/fourcc2pixfmt.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2012 Stefano Sabatini
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#if HAVE_UNISTD_H
+#include <unistd.h>             /* getopt */
+#endif
+
+#include "libavutil/pixdesc.h"
+#include "libavcodec/avcodec.h"
+#include "libavutil/common.h"
+#include "libavcodec/raw.h"
+
+#if !HAVE_GETOPT
+#include "compat/getopt.c"
+#endif
+
+static void usage(void)
+{
+    printf("Show the relationships between rawvideo pixel formats and FourCC tags.\n");
+    printf("usage: fourcc2pixfmt [OPTIONS]\n");
+    printf("\n"
+           "Options:\n"
+           "-l                list the pixel format for each fourcc\n"
+           "-L                list the fourccs for each pixel format\n"
+           "-p PIX_FMT        given a pixel format, print the list of associated fourccs (one per line)\n"
+           "-h                print this help\n");
+}
+
+static void print_pix_fmt_fourccs(enum PixelFormat pix_fmt, char sep)
+{
+    int i;
+
+    for (i = 0; ff_raw_pix_fmt_tags[i].pix_fmt != PIX_FMT_NONE; i++) {
+        if (ff_raw_pix_fmt_tags[i].pix_fmt == pix_fmt) {
+            char buf[32];
+            av_get_codec_tag_string(buf, sizeof(buf), ff_raw_pix_fmt_tags[i].fourcc);
+            printf("%s%c", buf, sep);
+        }
+    }
+}
+
+int main(int argc, char **argv)
+{
+    int i, list_fourcc_pix_fmt = 0, list_pix_fmt_fourccs = 0;
+    const char *pix_fmt_name = NULL;
+    char c;
+
+    if (argc == 1) {
+        usage();
+        return 0;
+    }
+
+    while ((c = getopt(argc, argv, "hp:lL")) != -1) {
+        switch (c) {
+        case 'h':
+            usage();
+            return 0;
+        case 'l':
+            list_fourcc_pix_fmt = 1;
+            break;
+        case 'L':
+            list_pix_fmt_fourccs = 1;
+            break;
+        case 'p':
+            pix_fmt_name = optarg;
+            break;
+        case '?':
+            usage();
+            return 1;
+        }
+    }
+
+    if (list_fourcc_pix_fmt) {
+        for (i = 0; ff_raw_pix_fmt_tags[i].pix_fmt != PIX_FMT_NONE; i++) {
+            char buf[32];
+            av_get_codec_tag_string(buf, sizeof(buf), ff_raw_pix_fmt_tags[i].fourcc);
+            printf("%s: %s\n", buf, av_get_pix_fmt_name(ff_raw_pix_fmt_tags[i].pix_fmt));
+        }
+    }
+
+    if (list_pix_fmt_fourccs) {
+        for (i = 0; i < PIX_FMT_NB; i++) {
+            const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[i];
+            if (!pix_desc->name || pix_desc->flags & PIX_FMT_HWACCEL)
+                continue;
+            printf("%s: ", pix_desc->name);
+            print_pix_fmt_fourccs(i, ' ');
+            printf("\n");
+        }
+    }
+
+    if (pix_fmt_name) {
+        enum PixelFormat pix_fmt = av_get_pix_fmt(pix_fmt_name);
+        if (pix_fmt == PIX_FMT_NONE) {
+            fprintf(stderr, "Invalid pixel format selected '%s'\n", pix_fmt_name);
+            return 1;
+        }
+        print_pix_fmt_fourccs(pix_fmt, '\n');
+    }
+
+    return 0;
+}