[FFmpeg-devel] [PATCH v3 2/3] libavcodec/jpeg2000dec: Add check when done with main header markers

gautamramk at gmail.com gautamramk at gmail.com
Tue Jul 21 21:07:14 EEST 2020


From: Gautam Ramakrishnan <gautamramk at gmail.com>

This patch sets a flag when the processing of the
main header is complete.
---
 libavcodec/jpeg2000dec.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
index 5e9e97eb6a..23792c15b2 100644
--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -102,6 +102,7 @@ typedef struct Jpeg2000DecoderContext {
     uint8_t         cbps[4];    // bits per sample in particular components
     uint8_t         sgnd[4];    // if a component is signed
     uint8_t         properties[4];
+    uint8_t         in_tile_headers;
     int             cdx[4], cdy[4];
     int             precision;
     int             ncomponents;
@@ -2165,6 +2166,9 @@ static int jpeg2000_read_main_headers(Jpeg2000DecoderContext *s)
             ret = get_poc(s, len, poc);
             break;
         case JPEG2000_SOT:
+            if (!s->in_tile_headers) {
+                s->in_tile_headers = 1;
+            }
             if (!(ret = get_sot(s, len))) {
                 av_assert1(s->curtileno >= 0);
                 codsty = s->tile[s->curtileno].codsty;
-- 
2.17.1



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