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-rw-r--r--libavformat/avformat.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index f28186f7c7..ade5d2f9dc 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -1198,6 +1198,18 @@ typedef struct AVFormatContext {
*/
int max_ts_probe;
+ /**
+ * Avoid negative timestamps during muxing.
+ * Any value of the AVFMT_AVOID_NEG_TS_* constants.
+ * Note, this only works when using av_interleaved_write_frame.
+ * - muxing: Set by user
+ * - demuxing: unused
+ */
+ int avoid_negative_ts;
+#define AVFMT_AVOID_NEG_TS_AUTO -1 ///< Enabled when required by target format
+#define AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE 1 ///< Shift timestamps so they are non negative
+#define AVFMT_AVOID_NEG_TS_MAKE_ZERO 2 ///< Shift timestamps so that they start at 0
+
/*****************************************************************
* All fields below this line are not part of the public API. They
* may not be used outside of libavformat and can be changed and