summaryrefslogtreecommitdiffstats
path: root/dom/media/webm/EbmlComposer.h
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/media/webm/EbmlComposer.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/media/webm/EbmlComposer.h')
-rw-r--r--dom/media/webm/EbmlComposer.h89
1 files changed, 89 insertions, 0 deletions
diff --git a/dom/media/webm/EbmlComposer.h b/dom/media/webm/EbmlComposer.h
new file mode 100644
index 000000000..389d33528
--- /dev/null
+++ b/dom/media/webm/EbmlComposer.h
@@ -0,0 +1,89 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef EbmlComposer_h_
+#define EbmlComposer_h_
+#include "nsTArray.h"
+#include "ContainerWriter.h"
+
+namespace mozilla {
+
+/*
+ * A WebM muxer helper for package the valid WebM format.
+ */
+class EbmlComposer {
+public:
+ EbmlComposer();
+ /*
+ * Assign the parameter which header required.
+ */
+ void SetVideoConfig(uint32_t aWidth, uint32_t aHeight, uint32_t aDisplayWidth,
+ uint32_t aDisplayHeight, float aFrameRate);
+
+ void SetAudioConfig(uint32_t aSampleFreq, uint32_t aChannels);
+ /*
+ * Set the CodecPrivateData for writing in header.
+ */
+ void SetAudioCodecPrivateData(nsTArray<uint8_t>& aBufs)
+ {
+ mCodecPrivateData.AppendElements(aBufs);
+ }
+ /*
+ * Generate the whole WebM header and output to mBuff.
+ */
+ void GenerateHeader();
+ /*
+ * Insert media encoded buffer into muxer and it would be package
+ * into SimpleBlock. If no cluster is opened, new cluster will start for writing.
+ */
+ void WriteSimpleBlock(EncodedFrame* aFrame);
+ /*
+ * Get valid cluster data.
+ */
+ void ExtractBuffer(nsTArray<nsTArray<uint8_t> >* aDestBufs,
+ uint32_t aFlag = 0);
+private:
+ // Move the metadata data to mClusterCanFlushBuffs.
+ void FinishMetadata();
+ // Close current cluster and move data to mClusterCanFlushBuffs.
+ void FinishCluster();
+ // The temporary storage for cluster data.
+ nsTArray<nsTArray<uint8_t> > mClusterBuffs;
+ // The storage which contain valid cluster data.
+ nsTArray<nsTArray<uint8_t> > mClusterCanFlushBuffs;
+
+ // Indicate the data types in mClusterBuffs.
+ enum {
+ FLUSH_NONE = 0,
+ FLUSH_METADATA = 1 << 0,
+ FLUSH_CLUSTER = 1 << 1
+ };
+ uint32_t mFlushState;
+ // Indicate the cluster header index in mClusterBuffs.
+ uint32_t mClusterHeaderIndex;
+ // The cluster length position.
+ uint64_t mClusterLengthLoc;
+ // Audio codec specific header data.
+ nsTArray<uint8_t> mCodecPrivateData;
+ // Codec delay in nanoseconds.
+ uint64_t mCodecDelay;
+
+ // The timecode of the cluster.
+ uint64_t mClusterTimecode;
+
+ // Video configuration
+ int mWidth;
+ int mHeight;
+ int mDisplayWidth;
+ int mDisplayHeight;
+ float mFrameRate;
+ // Audio configuration
+ float mSampleFreq;
+ int mChannels;
+};
+
+} // namespace mozilla
+
+#endif