[FFmpeg-devel] lavf/img2dec: Increase score for jpgs without EOI

[Carl Eugen Hoyos]

Hi!

For large jpeg files, EOI may never be seen by the probe function 
but several jpeg tags are correctly identified.

Please comment, Carl Eugen
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From 1abe53bf7826b23f5aca7b5b6108e6d309b21b86 Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <cehoyos at ag.or.at>
Date: Sun, 1 Jan 2017 14:35:21 +0100
Subject: [PATCH] lavf/img2dec: Increase detection score of jpgs without EOI.

Also increases the score for large jpeg files.
Fixes autodetection for the file from mpv issue 3973.
---
 libavformat/img2dec.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c
index c8d7031..8967630 100644
--- a/libavformat/img2dec.c
+++ b/libavformat/img2dec.c
@@ -755,6 +755,8 @@ static int jpeg_probe(AVProbeData *p)
 
     if (state == EOI)
         return AVPROBE_SCORE_EXTENSION + 1;
+    if (state == SOS)
+        return AVPROBE_SCORE_EXTENSION - 1;
     return AVPROBE_SCORE_EXTENSION / 8;
 }
 
-- 
1.7.10.4