avformat: add AVInputFormat flag AVFMT_NO_BYTE_SEEK.

This will prevent seeking by bytes for formats that cannot handle this.

1 files changed, 2 insertions, 1 deletions

diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 7b350f15cd..70d466e0d1 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -274,6 +274,7 @@ typedef struct AVFormatParameters {
 #define AVFMT_NOSTREAMS     0x1000 /**< Format does not require any streams */
 #define AVFMT_NOBINSEARCH   0x2000 /**< Format does not allow to fallback to binary search via read_timestamp */
 #define AVFMT_NOGENSEARCH   0x4000 /**< Format does not allow to fallback to generic search */
+#define AVFMT_NO_BYTE_SEEK  0x8000 /**< Format does not allow seeking by bytes */
 
 typedef struct AVOutputFormat {
     const char *name;
@@ -408,7 +409,7 @@ typedef struct AVInputFormat {
     /**
      * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS,
      * AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH,
-     * AVFMT_NOGENSEARCH.
+     * AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK.
      */
     int flags;