lavf/mpegts: Convert service_name and service_provider to utf-8.

Fixes ticket #6320.

1 files changed, 44 insertions, 0 deletions

diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index b04fd7b4f4..f5a87c87cb 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -37,6 +37,9 @@
 #include "avio_internal.h"
 #include "mpeg.h"
 #include "isom.h"
+#if CONFIG_ICONV
+#include <iconv.h>
+#endif
 
 /* maximum size in which we look for synchronization if
  * synchronization is lost */
@@ -674,6 +677,47 @@ static char *getstr8(const uint8_t **pp, const uint8_t *p_end)
         return NULL;
     if (len > p_end - p)
         return NULL;
+#if CONFIG_ICONV
+    if (len && *p < 0x20) {
+        const char *encodings[] = {
+            "ISO6937", "ISO-8859-5", "ISO-8859-6", "ISO-8859-7",
+            "ISO-8859-8", "ISO-8859-9", "ISO-8859-10", "ISO-8859-11",
+            "", "ISO-8859-13", "ISO-8859-14", "ISO-8859-15", "", "", "", "",
+            "", "ISO-10646", "KSC_5601", "GB2312", "UCS-2BE", "UTF-8", "", "",
+            "", "", "", "", "", "", "", ""
+        };
+        iconv_t cd;
+        char *in, *out;
+        size_t inlen = len - 1, outlen = inlen * 6 + 1;
+        if (len >= 3 && p[0] == 0x10 && !p[1] && p[2] && p[2] <= 0xf && p[2] != 0xc) {
+            char iso8859[12];
+            snprintf(iso8859, sizeof(iso8859), "ISO-8859-%d", p[2]);
+            inlen -= 2;
+            in = (char *)p + 3;
+            cd = iconv_open("UTF-8", iso8859);
+        } else {
+            in = (char *)p + 1;
+            cd = iconv_open("UTF-8", encodings[*p]);
+        }
+        if (cd == (iconv_t)-1)
+            goto no_iconv;
+        str = out = av_malloc(outlen);
+        if (!str) {
+            iconv_close(cd);
+            return NULL;
+        }
+        if (iconv(cd, &in, &inlen, &out, &outlen) == -1) {
+            iconv_close(cd);
+            av_freep(&str);
+            goto no_iconv;
+        }
+        iconv_close(cd);
+        *out = 0;
+        *pp = p + len;
+        return str;
+    }
+no_iconv:
+#endif
     str = av_malloc(len + 1);
     if (!str)
         return NULL;