Index: media/filters/webm_muxer.h |
diff --git a/media/filters/webm_muxer.h b/media/filters/webm_muxer.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3e142a8dfac1e6c673b5e6288b72f68cf7b17ea5 |
--- /dev/null |
+++ b/media/filters/webm_muxer.h |
@@ -0,0 +1,68 @@ |
+// Copyright 2015 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef MEDIA_FILTERS_LIBWEBM_MUXER_H_ |
+#define MEDIA_FILTERS_LIBWEBM_MUXER_H_ |
+ |
+#include "base/callback.h" |
+#include "base/macros.h" |
+#include "base/threading/thread_checker.h" |
+#include "base/time/time.h" |
+#include "media/base/media_export.h" |
+#include "third_party/libwebm/source/mkvmuxer.hpp" |
+#include "ui/gfx/geometry/size.h" |
+ |
+namespace media { |
+ |
+class MEDIA_EXPORT WebmMuxer : public mkvmuxer::IMkvWriter { |
+ public: |
+ typedef base::Callback<void(const char*, int, bool)> WriteDataCB; |
+ |
+ explicit WebmMuxer(const WriteDataCB& write_data_callback); |
+ ~WebmMuxer() override; |
+ |
+ void OnEncodedVideo(int track_index, |
+ const std::string& encoded_data, |
+ const base::TimeTicks& timestamp, |
+ bool keyframe, |
+ const gfx::Size& frame_size, |
+ double frame_rate); |
+ |
+ private: |
+ // Add a new video track when receiving the first frame. |
+ bool AddVideoTrack(const gfx::Size& frame_size, |
+ double frame_rate, |
+ int track_index_starting_from_one); |
+ |
+ // IMkvWriter interface. |
+ mkvmuxer::int32 Write(const void* buf, mkvmuxer::uint32 len) override; |
+ mkvmuxer::int64 Position() const override; |
+ mkvmuxer::int32 Position(mkvmuxer::int64 position) override; |
+ bool Seekable() const override; |
+ void ElementStartNotify(mkvmuxer::uint64 element_id, |
+ mkvmuxer::int64 position) override; |
+ |
+ // Used to DCHECK that we are called on the correct thread. |
+ base::ThreadChecker thread_checker_; |
+ |
+ // Callback to dump written data as being called by libwebm. |
+ const WriteDataCB write_data_callback_; |
+ |
+ // Class creation time. |
+ const base::TimeTicks time_start_; |
+ |
+ // Rolling counter of the position in bytes of the written goo. |
+ int64_t position_; |
+ |
+ std::vector<int> track_indexes_; |
+ |
+ // Owned pointer to the MkvMuxer active element. |
+ scoped_ptr<mkvmuxer::Segment> segment_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(WebmMuxer); |
+}; |
+ |
+} // namespace media |
+ |
+#endif // MEDIA_FILTERS_LIBWEBM_MUXER_H_ |