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authorStefano Sabatini <stefasab@gmail.com>2012-05-26 01:23:04 +0200
committerStefano Sabatini <stefasab@gmail.com>2012-06-04 00:07:24 +0200
commite10eac910a2df9a2a37f13a1a0876698b240f334 (patch)
treef86d7e36b0839ef6ddea3c2b01b489865c041a4a
parentf3fea5bab1e165ea5076b27335feb60d77cdae01 (diff)
downloadffmpeg-streaming-e10eac910a2df9a2a37f13a1a0876698b240f334.zip
ffmpeg-streaming-e10eac910a2df9a2a37f13a1a0876698b240f334.tar.gz
lavc/raw: add test utility for listing fourcc/pix_fmt map
The test program is useful for checking which raw formats are currently identified by a codec tag.
-rw-r--r--libavcodec/Makefile1
-rw-r--r--libavcodec/raw.c96
2 files changed, 97 insertions, 0 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index da22704..add73bb 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -783,6 +783,7 @@ TESTPROGS = cabac \
golomb \
iirfilter \
rangecoder \
+ raw \
snowenc \
TESTPROGS-$(HAVE_MMX) += motion
diff --git a/libavcodec/raw.c b/libavcodec/raw.c
index 6afbd02..4b84242 100644
--- a/libavcodec/raw.c
+++ b/libavcodec/raw.c
@@ -172,3 +172,99 @@ unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat fmt)
}
return 0;
}
+
+#ifdef TEST
+
+#include <unistd.h> /* getopt */
+#include "libavutil/pixdesc.h"
+
+#undef printf
+#undef fprintf
+
+static void usage(void)
+{
+ 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\n"
+ "-h print this help\n");
+}
+
+static void print_pix_fmt_fourccs(enum PixelFormat pix_fmt, char sep)
+{
+ int i;
+
+ for (i = 0; i < FF_ARRAY_ELEMS(ff_raw_pix_fmt_tags); 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) {
+ /* print a list of pixel format / fourcc */
+ for (i = 0; i < FF_ARRAY_ELEMS(ff_raw_pix_fmt_tags); i++) {
+ char buf[32];
+ av_get_codec_tag_string(buf, sizeof(buf), ff_raw_pix_fmt_tags[i].fourcc);
+ if (ff_raw_pix_fmt_tags[i].pix_fmt != PIX_FMT_NONE)
+ printf("%s: %s\n", av_get_pix_fmt_name(ff_raw_pix_fmt_tags[i].pix_fmt), buf);
+ }
+ }
+
+ 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;
+}
+#endif
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