1 files changed, 88 insertions, 0 deletions
diff --git a/libavformat/mux.h b/libavformat/mux.h
new file mode 100644
index 0000000000..d1dc2fa2cb
--- /dev/null
+++ b/libavformat/mux.h
@@ -0,0 +1,88 @@
+/*
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFORMAT_MUX_H
+#define AVFORMAT_MUX_H
+
+#include <stdint.h>
+#include "libavcodec/packet.h"
+#include "avformat.h"
+
+/**
+ * Add packet to an AVFormatContext's packet_buffer list, determining its
+ * interleaved position using compare() function argument.
+ * @return 0 on success, < 0 on error. pkt will always be blank on return.
+ */
+int ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt,
+                             int (*compare)(AVFormatContext *, const AVPacket *, const AVPacket *));
+
+/**
+ * Interleave an AVPacket per dts so it can be muxed.
+ * See the documentation of AVOutputFormat.interleave_packet for details.
+ */
+int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *pkt,
+                                 int flush, int has_packet);
+
+/**
+ * Interleave packets directly in the order in which they arrive
+ * without any sort of buffering.
+ */
+int ff_interleave_packet_passthrough(AVFormatContext *s, AVPacket *pkt,
+                                     int flush, int has_packet);
+
+/**
+ * Find the next packet in the interleaving queue for the given stream.
+ *
+ * @return a pointer to a packet if one was found, NULL otherwise.
+ */
+const AVPacket *ff_interleaved_peek(AVFormatContext *s, int stream);
+
+int ff_get_muxer_ts_offset(AVFormatContext *s, int stream_index, int64_t *offset);
+
+/**
+ * Write a packet to another muxer than the one the user originally
+ * intended. Useful when chaining muxers, where one muxer internally
+ * writes a received packet to another muxer.
+ *
+ * @param dst the muxer to write the packet to
+ * @param dst_stream the stream index within dst to write the packet to
+ * @param pkt the packet to be written. It will be returned blank when
+ *            av_interleaved_write_frame() is used, unchanged otherwise.
+ * @param src the muxer the packet originally was intended for
+ * @param interleave 0->use av_write_frame, 1->av_interleaved_write_frame
+ * @return the value av_write_frame returned
+ */
+int ff_write_chained(AVFormatContext *dst, int dst_stream, AVPacket *pkt,
+                     AVFormatContext *src, int interleave);
+
+/**
+ * Flags for AVFormatContext.write_uncoded_frame()
+ */
+enum AVWriteUncodedFrameFlags {
+
+    /**
+     * Query whether the feature is possible on this stream.
+     * The frame argument is ignored.
+     */
+    AV_WRITE_UNCODED_FRAME_QUERY           = 0x0001,
+
+};
+
+#endif /* AVFORMAT_MUX_H */