Hi!
Attached patch implements auto-detection of svg images.
Please review, Carl Eugen
From f06137f38f166740565e58d5c7c88777508f59ec Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <ceffm...@gmail.com>
Date: Mon, 2 Oct 2017 01:13:29 +0200
Subject: [PATCH] lavf/img2dec: Auto-detect svg images.
---
libavformat/img2dec.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c
index 19cae87..468c820 100644
--- a/libavformat/img2dec.c
+++ b/libavformat/img2dec.c
@@ -34,6 +34,7 @@
#include "internal.h"
#include "img2.h"
#include "libavcodec/mjpeg.h"
+#include "subtitles.h"
#if HAVE_GLOB
/* Locally define as 0 (bitwise-OR no-op) any missing glob options that
@@ -875,8 +876,20 @@ static int sunrast_probe(AVProbeData *p)
static int svg_probe(AVProbeData *p)
{
- if (av_match_ext(p->filename, "svg") || av_match_ext(p->filename, "svgz"))
- return AVPROBE_SCORE_EXTENSION + 1;
+ const uint8_t *b = p->buf;
+ const uint8_t *end = p->buf + p->buf_size;
+ if (memcmp(p->buf, "<?xml", 5))
+ return 0;
+ while (b < end) {
+ b += ff_subtitles_next_line(b);
+ if (b >= end)
+ return 0;
+ if (!strstr(b, "<!DOCTYPE "))
+ continue;
+ b += 9;
+ if (strstr(b, "svg"))
+ return AVPROBE_SCORE_MAX;
+ }
return 0;
}
--
1.7.10.4
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