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jpegparse: add gst_jpeg_parse_skip_marker ()

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https://bugzilla.gnome.org/show_bug.cgi?id=626618
This commit is contained in:
Víctor Manuel Jáquez Leal 2010-11-16 17:35:36 +01:00 committed by Stefan Kost
parent 285c32e01f
commit e5728ebcb1
1 changed files with 19 additions and 10 deletions
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29
gst/jpegformat/gstjpegparse.c
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@ -499,6 +499,23 @@ gst_jpeg_parse_sof (GstJpegParse * parse, GstByteReader * reader)
return TRUE; return TRUE;
} }
static inline gboolean
gst_jpeg_parse_skip_marker (GstJpegParse * parse,
GstByteReader * reader, guint8 marker)
{
guint16 size;
if (!gst_byte_reader_get_uint16_be (reader, &size))
return FALSE;
if (!gst_byte_reader_skip (reader, size - 2))
return FALSE;
GST_LOG_OBJECT (parse, "unhandled marker %x skiping %u bytes", marker, size);
return TRUE;
}
static gboolean static gboolean
gst_jpeg_parse_read_header (GstJpegParse * parse, GstBuffer * buffer) gst_jpeg_parse_read_header (GstJpegParse * parse, GstBuffer * buffer)
{ {
@ -629,12 +646,8 @@ gst_jpeg_parse_read_header (GstJpegParse * parse, GstBuffer * buffer)
case DHT: case DHT:
case DQT: case DQT:
/* Ignore these codes */ /* Ignore these codes */
if (!gst_byte_reader_get_uint16_be (&reader, &size)) if (!gst_jpeg_parse_skip_marker (parse, &reader, marker))
goto error; goto error;
if (!gst_byte_reader_skip (&reader, size - 2))
goto error;
GST_LOG_OBJECT (parse, "unhandled marker %x skiping %u bytes", marker,
size - 2);
break; break;
case SOF2: case SOF2:
@ -670,12 +683,8 @@ gst_jpeg_parse_read_header (GstJpegParse * parse, GstBuffer * buffer)
if (!gst_byte_reader_set_pos (&reader, pos - size)) if (!gst_byte_reader_set_pos (&reader, pos - size))
goto error; goto error;
#else #else
if (!gst_byte_reader_get_uint16_be (&reader, &size)) if (!gst_jpeg_parse_skip_marker (parse, &reader, marker))
goto error; goto error;
if (!gst_byte_reader_skip (&reader, size - 2))
goto error;
GST_LOG_OBJECT (parse, "unhandled marker %x skiping %u bytes", marker,
size - 2);
#endif #endif
} else { } else {
GST_WARNING_OBJECT (parse, "unhandled marker %x, leaving", marker); GST_WARNING_OBJECT (parse, "unhandled marker %x, leaving", marker);