avformat: Add av_get_frame_filename2() and AV_FRAME_FILENAME_FLAGS_MULTIPLE

This will be used to allow writing file sequences using the tee output onto
multiple places in parallel

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

1 files changed, 7 insertions, 0 deletions

diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index b9fbb06560..d8a6cf3392 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -2720,6 +2720,9 @@ void av_dump_format(AVFormatContext *ic,
                     const char *url,
                     int is_output);
 
+
+#define AV_FRAME_FILENAME_FLAGS_MULTIPLE 1 ///< Allow multiple %d
+
 /**
  * Return in 'buf' the path with '%d' replaced by a number.
  *
@@ -2730,8 +2733,12 @@ void av_dump_format(AVFormatContext *ic,
  * @param buf_size destination buffer size
  * @param path numbered sequence string
  * @param number frame number
+ * @param flags AV_FRAME_FILENAME_FLAGS_*
  * @return 0 if OK, -1 on format error
  */
+int av_get_frame_filename2(char *buf, int buf_size,
+                          const char *path, int number, int flags);
+
 int av_get_frame_filename(char *buf, int buf_size,
                           const char *path, int number);