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