Bug 508082: Implement a raw video decoder. r=doublec

--HG--
extra : rebase_source : 2ffc36ceb9cb8407531efa6e7b1f0548e81c170c

config/autoconf.mk.in

@@ -154,6 +154,7 @@ MOZ_MORK = @MOZ_MORK@
 MOZ_MORKREADER = @MOZ_MORKREADER@
 MOZ_NO_FAST_LOAD = @MOZ_NO_FAST_LOAD@
 MOZ_OGG = @MOZ_OGG@
+MOZ_RAW = @MOZ_RAW@
 MOZ_SYDNEYAUDIO = @MOZ_SYDNEYAUDIO@
 MOZ_WAVE = @MOZ_WAVE@
 MOZ_MEDIA = @MOZ_MEDIA@

configure.in

@@ -4907,6 +4907,7 @@ MOZ_NO_ACTIVEX_SUPPORT=1
 MOZ_NO_INSPECTOR_APIS=
 MOZ_NO_FAST_LOAD=
 MOZ_OGG=1
+MOZ_RAW=1
 MOZ_SYDNEYAUDIO=
 MOZ_VORBIS=
 MOZ_WAVE=1
@@ -5856,6 +5857,9 @@ if test -n "$MOZ_NO_FAST_LOAD"; then
     AC_DEFINE(MOZ_NO_FAST_LOAD)
 fi
 
+AC_SUBST(MOZ_RAW)
+AC_DEFINE(MOZ_RAW)
+
 dnl ========================================================
 dnl = Disable Ogg Codecs
 dnl ========================================================

content/html/content/src/nsHTMLMediaElement.cpp

@@ -96,6 +96,9 @@
 #ifdef MOZ_WEBM
 #include "nsWebMDecoder.h"
 #endif
+#ifdef MOZ_RAW
+#include "nsRawDecoder.h"
+#endif
 
 #ifdef PR_LOGGING
 static PRLogModuleInfo* gMediaElementLog;
@@ -1184,7 +1187,36 @@ void nsHTMLMediaElement::UnbindFromTree(PRBool aDeep,
     Pause();
   nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
 }
+#ifdef MOZ_RAW
+static const char gRawTypes[][16] = {
+  "video/x-raw",
+  "video/x-raw-yuv"
+};
 
+static const char* gRawCodecs[] = {
+  nsnull
+};
+
+static const char* gRawMaybeCodecs[] = {
+  nsnull
+};
+
+static PRBool IsRawEnabled()
+{
+  return nsContentUtils::GetBoolPref("media.raw.enabled");
+}
+
+static PRBool IsRawType(const nsACString& aType)
+{
+  if (!IsRawEnabled())
+    return PR_FALSE;
+  for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(gRawTypes); ++i) {
+    if (aType.EqualsASCII(gRawTypes[i]))
+      return PR_TRUE;
+  }
+  return PR_FALSE;
+}
+#endif
 #ifdef MOZ_OGG
 // See http://www.rfc-editor.org/rfc/rfc5334.txt for the definitions
 // of Ogg media types and codec types
@@ -1285,6 +1317,12 @@ nsHTMLMediaElement::CanPlayStatus
 nsHTMLMediaElement::CanHandleMediaType(const char* aMIMEType,
                                        const char*** aCodecList)
 {
+#ifdef MOZ_RAW
+  if (IsRawType(nsDependentCString(aMIMEType))) {
+    *aCodecList = gRawCodecs;
+    return CANPLAY_MAYBE;
+  }
+#endif
 #ifdef MOZ_OGG
   if (IsOggType(nsDependentCString(aMIMEType))) {
     *aCodecList = gOggCodecs;
@@ -1309,6 +1347,10 @@ nsHTMLMediaElement::CanHandleMediaType(const char* aMIMEType,
 /* static */
 PRBool nsHTMLMediaElement::ShouldHandleMediaType(const char* aMIMEType)
 {
+#ifdef MOZ_RAW
+  if (IsRawType(nsDependentCString(aMIMEType)))
+    return PR_TRUE;
+#endif
 #ifdef MOZ_OGG
   if (IsOggType(nsDependentCString(aMIMEType)))
     return PR_TRUE;
@@ -1425,6 +1467,11 @@ void nsHTMLMediaElement::ShutdownMediaTypes()
   nsresult rv;
   nsCOMPtr<nsICategoryManager> catMan(do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv));
   if (NS_SUCCEEDED(rv)) {
+#ifdef MOZ_RAW
+    for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(gRawTypes); i++) {
+      catMan->DeleteCategoryEntry("Gecko-Content-Viewers", gRawTypes[i], PR_FALSE);
+    }
+#endif
 #ifdef MOZ_OGG
     for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(gOggTypes); i++) {
       catMan->DeleteCategoryEntry("Gecko-Content-Viewers", gOggTypes[i], PR_FALSE);
@@ -1446,6 +1493,14 @@ void nsHTMLMediaElement::ShutdownMediaTypes()
 already_AddRefed<nsMediaDecoder>
 nsHTMLMediaElement::CreateDecoder(const nsACString& aType)
 {
+#ifdef MOZ_RAW
+  if (IsRawType(aType)) {
+    nsRefPtr<nsRawDecoder> decoder = new nsRawDecoder();
+    if (decoder && decoder->Init(this)) {
+      return decoder.forget().get();
+    }
+  }
+#endif
 #ifdef MOZ_OGG
   if (IsOggType(aType)) {
     nsRefPtr<nsOggDecoder> decoder = new nsOggDecoder();

content/media/Makefile.in

@@ -73,6 +73,10 @@ CPPSRCS += \
   $(NULL)
 endif
 
+ifdef MOZ_RAW
+PARALLEL_DIRS += raw
+endif
+
 ifdef MOZ_OGG
 PARALLEL_DIRS += ogg
 endif

content/media/VideoUtils.h

@@ -59,6 +59,18 @@
 #define PR_INT64_MIN (-PR_INT64_MAX - 1)
 #define PR_UINT64_MAX (~(PRUint64)(0))
 
+static PRBool MulOverflow32(PRUint32 a, PRUint32 b, PRUint32 &aResult)
+{
+  PRUint64 rl = static_cast<PRUint64>(a) * static_cast<PRUint64>(b);
+
+  if (rl > PR_UINT32_MAX) {
+    return PR_FALSE;
+  }
+
+  aResult = static_cast<PRUint32>(rl);
+
+  return PR_TRUE;
+}
 
 // This belongs in xpcom/monitor/Monitor.h, once we've made
 // mozilla::Monitor non-reentrant.

content/media/ogg/nsOggCodecState.cpp

@@ -61,20 +61,6 @@ static PRBool AddOverflow(PRInt64 a, PRInt64 b, PRInt64& aResult);
 // in an integer overflow.
 static PRBool MulOverflow(PRInt64 a, PRInt64 b, PRInt64& aResult);
 
-static PRBool MulOverflow32(PRUint32 a, PRUint32 b, PRUint32& aResult)
-{
-  // 32 bit integer multiplication with overflow checking. Returns PR_TRUE
-  // if the multiplication was successful, or PR_FALSE if the operation resulted
-  // in an integer overflow.
-  PRUint64 a64 = a;
-  PRUint64 b64 = b;
-  PRUint64 r64 = a64 * b64;
-  if (r64 > PR_UINT32_MAX)
-     return PR_FALSE;
-  aResult = static_cast<PRUint32>(r64);
-  return PR_TRUE;
-}
-
 nsOggCodecState*
 nsOggCodecState::Create(ogg_page* aPage)
 {

content/media/raw/Makefile.in

@@ -0,0 +1,67 @@
+# ***** BEGIN LICENSE BLOCK *****
+# Version: MPL 1.1/GPL 2.0/LGPL 2.1
+#
+# The contents of this file are subject to the Mozilla Public License Version
+# 1.1 (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+# http://www.mozilla.org/MPL/
+#
+# Software distributed under the License is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+# for the specific language governing rights and limitations under the
+# License.
+#
+# The Original Code is Mozilla Raw Decoder code.
+#
+# The Initial Developer of the Original Code is
+#   Mozilla Foundation.
+# Portions created by the Initial Developer are Copyright (C) 2010
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Brad Lassey <blassey@mozilla.com>
+#
+# Alternatively, the contents of this file may be used under the terms of
+# either the GNU General Public License Version 2 or later (the "GPL"), or
+# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+# in which case the provisions of the GPL or the LGPL are applicable instead
+# of those above. If you wish to allow use of your version of this file only
+# under the terms of either the GPL or the LGPL, and not to allow others to
+# use your version of this file under the terms of the MPL, indicate your
+# decision by deleting the provisions above and replace them with the notice
+# and other provisions required by the GPL or the LGPL. If you do not delete
+# the provisions above, a recipient may use your version of this file under
+# the terms of any one of the MPL, the GPL or the LGPL.
+#
+# ***** END LICENSE BLOCK *****
+
+
+DEPTH		= ../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+MODULE		= content
+LIBRARY_NAME	= gkconraw_s
+LIBXUL_LIBRARY  = 1
+
+EXPORTS		+= \
+		nsRawDecoder.h \
+                nsRawReader.h \
+		$(NULL)
+
+CPPSRCS		+= \
+		nsRawDecoder.cpp \
+                nsRawReader.cpp \
+		$(NULL)
+
+FORCE_STATIC_LIB = 1
+
+include $(topsrcdir)/config/rules.mk
+
+INCLUDES	+= \
+		-I$(srcdir)/../../base/src \
+		-I$(srcdir)/../../html/content/src \
+		$(NULL)

content/media/raw/nsRawDecoder.cpp

@@ -0,0 +1,44 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Raw Decoder code.
+ *
+ * The Initial Developer of the Original Code is
+ *   Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsBuiltinDecoderStateMachine.h"
+#include "nsRawReader.h"
+#include "nsRawDecoder.h"
+
+nsDecoderStateMachine* nsRawDecoder::CreateStateMachine()
+{
+  return new nsBuiltinDecoderStateMachine(this, new nsRawReader(this));
+}

content/media/raw/nsRawDecoder.h

@@ -0,0 +1,49 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Raw Decoder code.
+ *
+ * The Initial Developer of the Original Code is
+ *   Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#if !defined(nsRawDecoder_h_)
+#define nsRawDecoder_h_
+
+#include "nsBuiltinDecoder.h"
+
+class nsRawDecoder : public nsBuiltinDecoder
+{
+public:
+  virtual nsMediaDecoder* Clone() { return new nsRawDecoder(); }
+  virtual nsDecoderStateMachine* CreateStateMachine();
+};
+
+#endif

content/media/raw/nsRawReader.cpp

@@ -0,0 +1,299 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla code.
+ *
+ * The Initial Developer of the Original Code is 
+ *   Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *  Brad Lassey <blassey@mozilla.com>
+ *  Kyle Huey <me@kylehuey.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsBuiltinDecoderStateMachine.h"
+#include "nsBuiltinDecoder.h"
+#include "nsRawReader.h"
+#include "nsRawDecoder.h"
+#include "VideoUtils.h"
+
+#define RAW_ID 0x595556
+
+nsRawReader::nsRawReader(nsBuiltinDecoder* aDecoder)
+  : nsBuiltinDecoderReader(aDecoder),
+    mCurrentFrame(0)
+{
+  MOZ_COUNT_CTOR(nsRawReader);
+}
+
+nsRawReader::~nsRawReader()
+{
+  MOZ_COUNT_DTOR(nsRawReader);
+}
+
+nsresult nsRawReader::Init()
+{
+  return NS_OK;
+}
+
+nsresult nsRawReader::ResetDecode()
+{
+  mCurrentFrame = 0;
+  return nsBuiltinDecoderReader::ResetDecode();
+}
+
+nsresult nsRawReader::ReadMetadata()
+{
+  NS_ASSERTION(mDecoder->OnStateMachineThread(),
+               "Should be on state machine thread.");
+  mozilla::MonitorAutoEnter autoEnter(mMonitor);
+
+  nsMediaStream* stream = mDecoder->GetCurrentStream();
+  NS_ASSERTION(stream, "Decoder has no media stream");
+
+  if (!ReadFromStream(stream, reinterpret_cast<PRUint8*>(&mMetadata),
+                      sizeof(mMetadata)))
+    return NS_ERROR_FAILURE;
+
+  // Validate the header
+  if (!(mMetadata.headerPacketID == 0 /* Packet ID of 0 for the header*/ &&
+        mMetadata.codecID == RAW_ID /* "YUV" */ &&
+        mMetadata.majorVersion == 0 &&
+        mMetadata.minorVersion == 1))
+    return NS_ERROR_FAILURE;
+
+  PRUint32 dummy;
+  if (!MulOverflow32(mMetadata.frameWidth, mMetadata.frameHeight, dummy))
+    return NS_ERROR_FAILURE;
+
+  mInfo.mHasVideo = PR_TRUE;
+  mInfo.mPicture.x = 0;
+  mInfo.mPicture.y = 0;
+  mInfo.mPicture.width = mMetadata.frameWidth;
+  mInfo.mPicture.height = mMetadata.frameHeight;
+  mInfo.mFrame.width = mMetadata.frameWidth;
+  mInfo.mFrame.height = mMetadata.frameHeight;
+  if (mMetadata.aspectDenominator == 0 ||
+      mMetadata.framerateDenominator == 0)
+    return NS_ERROR_FAILURE; // Invalid data
+  mInfo.mPixelAspectRatio = static_cast<float>(mMetadata.aspectNumerator) / 
+                            mMetadata.aspectDenominator;
+  mInfo.mDataOffset = sizeof(nsRawVideoHeader) + 1;
+  mInfo.mHasAudio = PR_FALSE;
+
+  mFrameRate = static_cast<float>(mMetadata.framerateNumerator) /
+               mMetadata.framerateDenominator;
+
+  // Make some sanity checks
+  if (mFrameRate > 45 ||
+      mFrameRate == 0 ||
+      mInfo.mPixelAspectRatio == 0 ||
+      mMetadata.frameWidth > 2000 ||
+      mMetadata.frameHeight > 2000 ||
+      mMetadata.chromaChannelBpp != 4 ||
+      mMetadata.lumaChannelBpp != 8 ||
+      mMetadata.colorspace != 1 /* 4:2:0 */)
+    return NS_ERROR_FAILURE;
+
+  mFrameSize = mMetadata.frameWidth * mMetadata.frameHeight *
+    (mMetadata.lumaChannelBpp + mMetadata.chromaChannelBpp) / 8.0 +
+    sizeof(nsRawPacketHeader);
+
+  PRInt64 length = stream->GetLength();
+  if (length != -1) {
+    mozilla::MonitorAutoExit autoExitMonitor(mMonitor);
+    mozilla::MonitorAutoEnter autoMonitor(mDecoder->GetMonitor());
+    mDecoder->GetStateMachine()->SetDuration(1000 *
+                                           (length - sizeof(nsRawVideoHeader)) /
+                                           (mFrameSize * mFrameRate));
+  }
+
+  return NS_OK;
+}
+
+ PRBool nsRawReader::DecodeAudioData()
+{
+  NS_ASSERTION(mDecoder->OnStateMachineThread() || mDecoder->OnDecodeThread(),
+               "Should be on state machine thread or decode thread.");
+  return PR_FALSE;
+}
+
+// Helper method that either reads until it gets aLength bytes 
+// or returns PR_FALSE
+PRBool nsRawReader::ReadFromStream(nsMediaStream *aStream, PRUint8* aBuf,
+                                   PRUint32 aLength)
+{
+  while (aLength > 0) {
+    PRUint32 bytesRead = 0;
+    nsresult rv;
+
+    rv = aStream->Read(reinterpret_cast<char*>(aBuf), aLength, &bytesRead);
+    NS_ENSURE_SUCCESS(rv, PR_FALSE);
+
+    if (bytesRead == 0) {
+      return PR_FALSE;
+    }
+
+    aLength -= bytesRead;
+    aBuf += bytesRead;
+  }
+
+  return PR_TRUE;
+}
+
+PRBool nsRawReader::DecodeVideoFrame(PRBool &aKeyframeSkip,
+                                     PRInt64 aTimeThreshold)
+{
+  mozilla::MonitorAutoEnter autoEnter(mMonitor);
+  NS_ASSERTION(mDecoder->OnStateMachineThread() || mDecoder->OnDecodeThread(),
+               "Should be on state machine thread or decode thread.");
+
+  PRInt64 currentFrameTime = 1000 * mCurrentFrame / mFrameRate;
+  PRUint32 length = mFrameSize - sizeof(nsRawPacketHeader);
+
+  nsAutoPtr<PRUint8> buffer(new PRUint8[length]);
+  nsMediaStream* stream = mDecoder->GetCurrentStream();
+  NS_ASSERTION(stream, "Decoder has no media stream");
+
+  // We're always decoding one frame when called
+  while(true) {
+    nsRawPacketHeader header;
+
+    // Read in a packet header and validate
+    if (!(ReadFromStream(stream, reinterpret_cast<PRUint8*>(&header),
+                         sizeof(header))) ||
+        !(header.packetID == 0xFF && header.codecID == RAW_ID /* "YUV" */)) {
+      return PR_FALSE;
+    }
+
+    if (!ReadFromStream(stream, buffer, length)) {
+      return PR_FALSE;
+    }
+
+    if (currentFrameTime >= aTimeThreshold)
+      break;
+
+    mCurrentFrame++;
+    currentFrameTime += 1000.0 / mFrameRate;
+  }
+
+  VideoData::YCbCrBuffer b;
+  b.mPlanes[0].mData = buffer;
+  b.mPlanes[0].mStride = mMetadata.frameWidth * mMetadata.lumaChannelBpp / 8.0;
+  b.mPlanes[0].mHeight = mMetadata.frameHeight;
+  b.mPlanes[0].mWidth = mMetadata.frameWidth;
+
+  PRUint32 cbcrStride = mMetadata.frameWidth * mMetadata.chromaChannelBpp / 8.0;
+
+  b.mPlanes[1].mData = buffer + mMetadata.frameHeight * b.mPlanes[0].mStride;
+  b.mPlanes[1].mStride = cbcrStride;
+  b.mPlanes[1].mHeight = mMetadata.frameHeight / 2;
+  b.mPlanes[1].mWidth = mMetadata.frameWidth / 2;
+
+  b.mPlanes[2].mData = b.mPlanes[1].mData + mMetadata.frameHeight * cbcrStride / 2;
+  b.mPlanes[2].mStride = cbcrStride;
+  b.mPlanes[2].mHeight = mMetadata.frameHeight / 2;
+  b.mPlanes[2].mWidth = mMetadata.frameWidth / 2;
+
+  VideoData *v = VideoData::Create(mInfo,
+                                   mDecoder->GetImageContainer(),
+                                   -1,
+                                   currentFrameTime,
+                                   currentFrameTime + (1000 / mFrameRate),
+                                   b,
+                                   1, // In raw video every frame is a keyframe
+                                   -1);
+  if (!v)
+    return PR_FALSE;
+
+  mVideoQueue.Push(v);
+  mCurrentFrame++;
+  currentFrameTime += 1000 / mFrameRate;
+
+  return PR_TRUE;
+}
+
+nsresult nsRawReader::Seek(PRInt64 aTime, PRInt64 aStartTime, PRInt64 aEndTime)
+{
+  mozilla::MonitorAutoEnter autoEnter(mMonitor);
+  NS_ASSERTION(mDecoder->OnStateMachineThread(),
+               "Should be on state machine thread.");
+
+  nsMediaStream *stream = mDecoder->GetCurrentStream();
+  NS_ASSERTION(stream, "Decoder has no media stream");
+
+  PRUint32 frame = mCurrentFrame;
+  if (aTime >= UINT_MAX)
+    return NS_ERROR_FAILURE;
+  mCurrentFrame = aTime * mFrameRate / 1000;
+
+  PRUint32 offset;
+  if (!MulOverflow32(mCurrentFrame, mFrameSize, offset))
+    return NS_ERROR_FAILURE;
+
+  offset += sizeof(nsRawVideoHeader);
+
+  nsresult rv = stream->Seek(nsISeekableStream::NS_SEEK_SET, offset);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  mVideoQueue.Erase();
+
+  while(mVideoQueue.GetSize() == 0) {
+    PRBool keyframeSkip = PR_FALSE;
+    if (!DecodeVideoFrame(keyframeSkip, 0)) {
+      mCurrentFrame = frame;
+      return NS_ERROR_FAILURE;
+    }
+
+    {
+      mozilla::MonitorAutoExit autoMonitorExit(mMonitor);
+      mozilla::MonitorAutoEnter autoMonitor(mDecoder->GetMonitor());
+      if (mDecoder->GetDecodeState() ==
+          nsBuiltinDecoderStateMachine::DECODER_STATE_SHUTDOWN) {
+        mCurrentFrame = frame;
+        return NS_ERROR_FAILURE;
+      }
+    }
+
+    nsAutoPtr<VideoData> video(mVideoQueue.PeekFront());
+    if (video && video->mEndTime < aTime) {
+      mVideoQueue.PopFront();
+      video = nsnull;
+    } else {
+      video.forget();
+    }
+  }
+
+  return NS_OK;
+}
+
+PRInt64 nsRawReader::FindEndTime(PRInt64 aEndTime)
+{
+  return -1;
+}

content/media/raw/nsRawReader.h

@@ -0,0 +1,127 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla code.
+ *
+ * The Initial Developer of the Original Code is 
+ *   Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *  Brad Lassey
+ *  Kyle Huey <me@kylehuey.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#if !defined(nsRawReader_h_)
+#define nsRawReader_h_
+
+#include "nsBuiltinDecoderReader.h"
+
+struct nsRawVideo_PRUint24 {
+  operator PRUint32() const { return value[2] << 16 | value[1] << 8 | value[0]; }
+private:
+  PRUint8 value[3];
+};
+
+struct nsRawPacketHeader {
+  typedef nsRawVideo_PRUint24 PRUint24;
+  PRUint8 packetID;
+  PRUint24 codecID;
+};
+
+// This is Arc's draft from wiki.xiph.org/OggYUV
+struct nsRawVideoHeader {
+  typedef nsRawVideo_PRUint24 PRUint24;
+  PRUint8 headerPacketID;          // Header Packet ID (always 0)
+  PRUint24 codecID;                // Codec identifier (always "YUV")
+  PRUint8 majorVersion;            // Version Major (breaks backwards compat)
+  PRUint8 minorVersion;            // Version Minor (preserves backwards compat)
+  PRUint16 options;                // Bit 1: Color (false = B/W)
+                                   // Bits 2-4: Chroma Pixel Shape
+                                   // Bit 5: 50% horizontal offset for Cr samples
+                                   // Bit 6: 50% vertical ...
+                                   // Bits 7-8: Chroma Blending
+                                   // Bit 9: Packed (false = Planar)
+                                   // Bit 10: Cr Staggered Horizontally
+                                   // Bit 11: Cr Staggered Vertically
+                                   // Bit 12: Unused (format is always little endian)
+                                   // Bit 13: Interlaced (false = Progressive)
+                                   // Bits 14-16: Interlace options (undefined)
+
+  PRUint8 alphaChannelBpp;
+  PRUint8 lumaChannelBpp;
+  PRUint8 chromaChannelBpp;
+  PRUint8 colorspace;
+
+  PRUint24 frameWidth;
+  PRUint24 frameHeight;
+  PRUint24 aspectNumerator;
+  PRUint24 aspectDenominator;
+
+  PRUint32 framerateNumerator;
+  PRUint32 framerateDenominator;
+};
+
+class nsRawReader : public nsBuiltinDecoderReader
+{
+public:
+  nsRawReader(nsBuiltinDecoder* aDecoder);
+  ~nsRawReader();
+
+  virtual nsresult Init();
+  virtual nsresult ResetDecode();
+  virtual PRBool DecodeAudioData();
+
+  virtual PRBool DecodeVideoFrame(PRBool &aKeyframeSkip,
+                                  PRInt64 aTimeThreshold);
+
+  virtual PRBool HasAudio()
+  {
+    return PR_FALSE;
+  }
+
+  virtual PRBool HasVideo()
+  {
+    return PR_TRUE;
+  }
+
+  virtual nsresult ReadMetadata();
+  virtual nsresult Seek(PRInt64 aTime, PRInt64 aStartTime, PRInt64 aEndTime);
+  virtual PRInt64 FindEndTime(PRInt64 aEndOffset);
+
+private:
+  PRBool ReadFromStream(nsMediaStream *aStream, PRUint8 *aBuf,
+                        PRUint32 aLength);
+
+  nsRawVideoHeader mMetadata;
+  PRUint32 mCurrentFrame;
+  double mFrameRate;
+  PRUint32 mFrameSize;
+};
+
+#endif

content/media/test/Makefile.in

@@ -194,6 +194,7 @@ _TEST_FILES += \
 		dirac.ogg \
 		seek.ogv \
 		seek.webm \
+		seek.yuv \
 		short-video.ogv \
 		small-shot.ogg \
 		sound.ogg \

content/media/test/manifest.js

@@ -102,6 +102,9 @@ var gPlayTests = [
   // Test playback of a webm file
   { name:"seek.webm", type:"video/webm", duration:3.966 },
 
+  // Test playback of a raw file
+  { name:"seek.yuv", type:"video/x-raw-yuv", duration:1.833 },
+
   { name:"bogus.duh", type:"bogus/duh", duration:Number.NaN }
   
 ];

layout/build/Makefile.in

@@ -131,6 +131,12 @@ SHARED_LIBRARY_LIBS 	+= \
 	$(NULL)
 endif
 
+ifdef MOZ_RAW
+SHARED_LIBRARY_LIBS 	+= \
+	$(DEPTH)/content/media/raw/$(LIB_PREFIX)gkconraw_s.$(LIB_SUFFIX)\
+	$(NULL)
+endif
+
 ifdef MOZ_WEBM
 SHARED_LIBRARY_LIBS 	+= \
 	$(DEPTH)/content/media/webm/$(LIB_PREFIX)gkconwebm_s.$(LIB_SUFFIX) \

modules/libpref/src/init/all.js

@@ -156,6 +156,9 @@ pref("media.enforce_same_site_origin", false);
 // Media cache size in kilobytes
 pref("media.cache_size", 512000);
 
+#ifdef MOZ_RAW
+pref("media.raw.enabled", true);
+#endif
 #ifdef MOZ_OGG
 pref("media.ogg.enabled", true);
 #endif

netwerk/mime/nsMimeTypes.h

@@ -156,6 +156,7 @@
 #define TEXT_XSL                            "text/xsl"
 
 #define VIDEO_MPEG                          "video/mpeg"
+#define VIDEO_RAW                           "video/x-raw-yuv"
 #define VIDEO_OGG                           "video/ogg"
 #define VIDEO_WEBM                          "video/webm"
 #define APPLICATION_OGG                     "application/ogg"

uriloader/exthandler/nsExternalHelperAppService.cpp

@@ -544,6 +544,7 @@ static nsExtraMimeTypeEntry extraMimeEntries [] =
   { VIDEO_WEBM, "webm", "Web Media Video" },
   { AUDIO_WEBM, "webm", "Web Media Audio" },
 #endif
+  { VIDEO_RAW, "yuv", "Raw YUV Video" },
   { AUDIO_WAV, "wav", "Waveform Audio" },
 };