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authorDustin Brody <libav@parsoma.net>2011-08-06 04:42:34 +0000
committerAnton Khirnov <anton@khirnov.net>2011-08-12 19:10:22 +0200
commit2f63440c59bf8c4a2e90280e23e8cadb235a42e6 (patch)
treee2ef08ef74514f19a737dc5eaff5726e9742788c
parent8d2e4a7e687b7fdbb939e236399cf774dc7bead6 (diff)
lavf: add support for error_recognition, use it in avidec, and bump minor API version
Signed-off-by: Anton Khirnov <anton@khirnov.net>
-rw-r--r--libavformat/avformat.h8
-rw-r--r--libavformat/avidec.c6
-rw-r--r--libavformat/options.c3
-rw-r--r--libavformat/version.h2
4 files changed, 16 insertions, 3 deletions
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 2f68abab25..957039f64e 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -854,6 +854,14 @@ typedef struct AVFormatContext {
* decoding: number of frames used to probe fps
*/
int fps_probe_size;
+
+ /**
+ * Error recognition; higher values will detect more errors but may
+ * misdetect some more or less valid parts as errors.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int error_recognition;
} AVFormatContext;
typedef struct AVPacketList {
diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 0ea093c6d7..8c0ef13b14 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -667,8 +667,9 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
break;
case MKTAG('i', 'n', 'd', 'x'):
i= avio_tell(pb);
- if(pb->seekable && !(s->flags & AVFMT_FLAG_IGNIDX)){
- read_braindead_odml_indx(s, 0);
+ if(pb->seekable && !(s->flags & AVFMT_FLAG_IGNIDX) &&
+ read_braindead_odml_indx(s, 0) < 0 && s->error_recognition >= FF_ER_EXPLODE){
+ goto fail;
}
avio_seek(pb, i+size, SEEK_SET);
break;
@@ -706,6 +707,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
if(size > 1000000){
av_log(s, AV_LOG_ERROR, "Something went wrong during header parsing, "
"I will ignore it and try to continue anyway.\n");
+ if (s->error_recognition >= FF_ER_EXPLODE) goto fail;
avi->movi_list = avio_tell(pb) - 4;
avi->movi_end = avio_size(pb);
goto end_of_header;
diff --git a/libavformat/options.c b/libavformat/options.c
index 961162876f..3ca8c83480 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -87,6 +87,9 @@ static const AVOption options[]={
{"fdebug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, 0, INT_MAX, E|D, "fdebug"},
{"ts", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_FDEBUG_TS }, INT_MIN, INT_MAX, E|D, "fdebug"},
{"max_delay", "maximum muxing or demuxing delay in microseconds", OFFSET(max_delay), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, E|D},
+{"fer", "set error detection aggressivity", OFFSET(error_recognition), FF_OPT_TYPE_INT, {.dbl = FF_ER_CAREFUL }, INT_MIN, INT_MAX, D, "fer"},
+{"careful", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_ER_CAREFUL }, INT_MIN, INT_MAX, D, "fer"},
+{"explode", "abort decoding on error recognition", 0, FF_OPT_TYPE_CONST, {.dbl = FF_ER_EXPLODE }, INT_MIN, INT_MAX, D, "fer"},
{"fpsprobesize", "number of frames used to probe fps", OFFSET(fps_probe_size), FF_OPT_TYPE_INT, {.dbl = -1}, -1, INT_MAX-1, D},
{NULL},
};
diff --git a/libavformat/version.h b/libavformat/version.h
index bb12b5137a..4473717fd7 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -24,7 +24,7 @@
#include "libavutil/avutil.h"
#define LIBAVFORMAT_VERSION_MAJOR 53
-#define LIBAVFORMAT_VERSION_MINOR 3
+#define LIBAVFORMAT_VERSION_MINOR 4
#define LIBAVFORMAT_VERSION_MICRO 0
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \