[FFmpeg-cvslog] avformat/dashenc: Simplify getting format string

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Wed Sep  6 16:41:58 2023 +0200| [c95cdf871c30a72965c65a4b3631e8a6d9b08a92] | committer: Andreas Rheinhardt

avformat/dashenc: Simplify getting format string

A switch is simpler than a lookup over a table with
three entries, only two of which can happen at all.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c95cdf871c30a72965c65a4b3631e8a6d9b08a92
---

 libavformat/dashenc.c | 21 ++++++---------------
 1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/libavformat/dashenc.c b/libavformat/dashenc.c
index 9c3ba2c389..e98d54a61d 100644
--- a/libavformat/dashenc.c
+++ b/libavformat/dashenc.c
@@ -217,16 +217,6 @@ static const struct codec_string {
     { AV_CODEC_ID_NONE, NULL }
 };
 
-static const struct format_string {
-    SegmentType segment_type;
-    const char *str;
-} formats[] = {
-    { SEGMENT_TYPE_AUTO, "auto" },
-    { SEGMENT_TYPE_MP4, "mp4" },
-    { SEGMENT_TYPE_WEBM, "webm" },
-    { 0, NULL }
-};
-
 static int dashenc_io_open(AVFormatContext *s, AVIOContext **pb, char *filename,
                            AVDictionary **options) {
     DASHContext *c = s->priv_data;
@@ -265,11 +255,12 @@ static void dashenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filenam
     }
 }
 
-static const char *get_format_str(SegmentType segment_type) {
-    int i;
-    for (i = 0; i < SEGMENT_TYPE_NB; i++)
-        if (formats[i].segment_type == segment_type)
-            return formats[i].str;
+static const char *get_format_str(SegmentType segment_type)
+{
+    switch (segment_type) {
+    case SEGMENT_TYPE_MP4:  return "mp4";
+    case SEGMENT_TYPE_WEBM: return "webm";
+    }
     return NULL;
 }