From: cocot <cocot@users.sourceforge.jp>
Date: Sun, 1 Mar 2009 01:31:45 +0000 (+0900)
Subject: implement VC1SequenceInfo class in Utils
X-Git-Url: http://git.osdn.net/view?p=tsremuxcpp%2Fdeveloping01.git;a=commitdiff_plain;h=8f9f97bdff443fbb1893b5d518b0135456ec5c8e

implement VC1SequenceInfo class in Utils
---

diff --git a/src/Utils.cc b/src/Utils.cc
index 72623d3..b33edde 100644
--- a/src/Utils.cc
+++ b/src/Utils.cc
@@ -975,13 +975,216 @@ pByte PesHeader::GetData(void)
     return Utility::ToArray(mData);
 }
 
+VC1SequenceInfo::VC1SequenceInfo(pByte data, int offset)
+{
+    UInt32 marker = 0xffffffff;
+    for(; offset < sizeof(reinterpret_cast<char*>(data.get())); offset++)
+    {
+        marker = marker << 8;
+        marker &= 0xffffff00;
+        marker += data[offset];
+        if(marker == Constants::VC1_SEQ_SC)
+            break;
+    }
+    offset++;
+    mData.clear();
+    if(offset < sizeof(reinterpret_cast<char*>(data.get())))
+    {
+        // sequence header
+        for(int i = 0;
+            offset < sizeof(reinterpret_cast<char*>(data.get()));
+            i++, offset++)
+        {
+            mData.push_back(data[offset]);
+        }
+    }
+}
+
+int VC1SequenceInfo::GetHeight(void)
+{
+    if(!mData.empty()&& mData.size() > 4)
+        return ((((mData.at(3) & 0x0f) << 8) + mData.at(4)) << 1) + 2;
+    else
+        return -1;
+}
+
+int VC1SequenceInfo::GetWidth(void)
+{
+    if(!mData.empty() && mData.size() > 3)
+        return (((mData.at(2) << 4) + ((mData.at(3) & 0xf0) >> 4)) << 1) + 2;
+    else
+        return -1;
+}
+
+bool VC1SequenceInfo::Valid(void)
+{
+    return !mData.empty();
+}
+
+bool VC1SequenceInfo::Interlaced(void)
+{
+    if(!mData.empty() && mData.size() > 5)
+        return ((mData.at(5) & 0x40) > 0);
+    return false;
+}
+
+bool VC1SequenceInfo::DisplayExt(void)
+{
+    if(!mData.empty() && mData.size() > 5)
+        return ((mData.at(5) & 0x02) > 0);
+    return false;
+}
+
+bool VC1SequenceInfo::AspectFlag(void)
+{
+    if(DisplayExt() && mData.size() > 9)
+        return ((mData.at(9) & 0x10) > 0);
+    return false;
+}
+
+byte VC1SequenceInfo::GetVc1AspectRatio(void)
+{
+    if(AspectFlag() && mData.size() > 9)
+        return (byte)(mData.at(9) & 0x0f);
+    return 0;
+}
+
+bool VC1SequenceInfo::FrameFlag(void)
+{
+    if(AspectFlag())
+    {
+         if(GetVc1AspectRatio() == 15 && mData.size() > 12)
+             return ((mData.at(12) & 0x80) > 0);
+         else if(GetVc1AspectRatio() != 15 && mData.size() > 10)
+             return ((mData.at(10) & 0x80) > 0);
+         else
+             return false;
+    }
+    else if(mData.size() > 9)
+         return ((mData.at(9) & 0x08) > 0);
+    else
+         return false;
+}
+
+bool VC1SequenceInfo::FrameRateIndicatorFlag(void)
+{
+    if(FrameFlag())
+    {
+        if(AspectFlag())
+        {
+            if (GetVc1AspectRatio() == 15 && mData.size() > 12)
+                return ((mData.at(12) & 0x40) > 0);
+            else if (GetVc1AspectRatio() != 15 && mData.size() > 10)
+                return ((mData.at(10) & 0x40) > 0);
+            else
+                return false;
+        }
+        else if (mData.size() > 9)
+            return ((mData.at(9) & 0x04) > 0);
+        else
+            return false;
+    }
+    else
+        return false;
+}
+
+AspectRatio VC1SequenceInfo::GetAspectRatio(void)
+{
+    if(GetVc1AspectRatio() == 1)
+    {
+        if(GetWidth() == 1920 && GetHeight() == 1080)
+            return a16_9;
+        if(GetWidth() == 1280 && GetHeight() == 720)
+            return a16_9;
+        if(GetWidth() == 640 && GetHeight() == 480)
+            return a4_3;
+    }
+    if(GetVc1AspectRatio() >= 2 && GetVc1AspectRatio() <= 5)
+        return a4_3;
+    if(GetVc1AspectRatio() >= 6 && GetVc1AspectRatio() <= 9)
+        return a16_9;
+    if(GetVc1AspectRatio() >= 10 && GetVc1AspectRatio() <= 11)
+        return a4_3;
+    if(GetVc1AspectRatio() >= 12 && GetVc1AspectRatio() <= 13)
+        return a16_9;
+    return AR_Reserved;
+}
+
+VideoFormat VC1SequenceInfo::GetVideoFormat(void)
+{
+    if (GetHeight() == 480 && Interlaced() == true)
+        return i480;
+    else if (GetHeight() == 480 && Interlaced() == false)
+        return p480;
+    else if (GetHeight() == 576 && Interlaced() == true)
+        return i576;
+    else if (GetHeight() == 576 && Interlaced() == false)
+        return p576;
+    else if (GetHeight() == 720 && Interlaced() == false)
+        return p720;
+    else if (GetHeight() == 1080 && Interlaced() == true)
+        return i1080;
+    else if (GetHeight() == 1080 && Interlaced() == false)
+        return p1080;
+    return VF_Reserved;
+}
+
+FrameRate VC1SequenceInfo::GetFrameRate(void)
+{
+    if(false == FrameFlag())
+        return FR_Reserved;
+    if(false == FrameRateIndicatorFlag())
+    {
+        byte FrameRateNr = 0;
+        byte FrameRateDr = 0;
+        if(AspectFlag())
+        {
+            if(GetVc1AspectRatio() == 15 && mData.size() > 13)
+            {
+                FrameRateNr = (byte)(((mData.at(12) & 0x3f) << 2)
+                    + ((mData.at(13) & 0xc0) >> 6));
+                FrameRateDr = (byte)((mData.at(13) & 0x3c) >> 2);
+            }
+            else if(GetVc1AspectRatio() != 15 && mData.size() > 11)
+            {
+                FrameRateNr = (byte)(((mData.at(10) & 0x3f) << 2)
+                    + ((mData.at(11) & 0xc0) >> 6));
+                FrameRateDr = (byte)((mData.at(11) & 0x3c) >> 2);
+            }
+        }
+        else if(mData.size() > 11)
+        {
+            FrameRateNr = (byte)(((mData.at(9) & 0x03) << 6)
+                + ((mData.at(10) & 0xfc) >> 2));
+            FrameRateDr = (byte)(((mData.at(10) & 0x03) << 2)
+                + ((mData[11] & 0xc0) >> 6));
+        }
+
+        if(FrameRateNr == 1 && FrameRateDr == 2)
+                return f23_976;
+        else if(FrameRateNr == 1 && FrameRateDr == 1)
+                return f24;
+        else if(FrameRateNr == 2 && FrameRateDr == 1)
+                return f25;
+        else if(FrameRateNr == 3 && FrameRateDr == 2)
+                return f29_97;
+        else if(FrameRateNr == 4 && FrameRateDr == 1)
+                return f50;
+        else if(FrameRateNr == 5 && FrameRateDr == 2)
+                return f59_94;
+    }
+    return FR_Reserved;
+}
+
+
+
+
 // implement class BluRayOutput
 // implement class DTCP_Descriptor : Descriptor
 // implement class PatPacket : TsTable
 // implement class SitPacket : TsTable
 // implement class PmPacket : TsTable
-// implement class VC1SequenceInfo
-// implement class H264Info
+// implement class H264Info : ElementaryParse
 // implement class AC3Info : ElementaryParse
 // implement class DtsInfo : ElementaryParse
 // implement class MlpInfo : ElementaryParse
diff --git a/src/Utils.h b/src/Utils.h
index 93605c6..6b116d6 100644
--- a/src/Utils.h
+++ b/src/Utils.h
@@ -405,53 +405,20 @@ class PesPacket {
 class VC1SequenceInfo {
  public:
   VC1SequenceInfo(pByte data, int offset);
-  bool Valid;
-  VideoFormat GetVideoFormati(void);
-  void SetVideoFormat(VideoFormat videoformat);
+  int GetHeight(void);
+  int GetWidth(void);
+  bool Valid(void);
+  bool Interlaced(void);
+  bool DisplayExt(void);
+  bool AspectFlag(void);
+  byte GetVc1AspectRatio(void);
+  bool FrameFlag(void);
+  bool FrameRateIndicatorFlag(void);
   AspectRatio GetAspectRatio(void);
-  void SetAspectRatio(AspectRatio aspectratio);
+  VideoFormat GetVideoFormat(void);
   FrameRate GetFrameRate(void);
-  void SetFrameRate(FrameRate frameRate);
  private:
   Bytes mData;
-  int Height;
-  int Width;
-  bool Interlaced;
-  bool DisplayExt;
-  bool AspectFlag;
-  byte Vc1AspectRatio;
-  bool FrameFlag;
-  bool FrameRateIndicatorFlag;
-  AspectRatio mAspectRatio;
-  VideoFormat mVideoFormat;
-  FrameRate   mFrameRate;
-};
-
-class H264Info {
- public:
-  H264Info(pByte data, int offset);
-  Bytes ElementaryDescriptors;
-  VideoFormat GetVideoFormati(void);
-  void SetVideoFormat(VideoFormat videoformat);
-  AspectRatio GetAspectRatio(void);
-  void SetAspectRatio(AspectRatio aspectratio);
-  FrameRate GetFrameRate(void);
-  void SetFrameRate(FrameRate frameRate);
-  AudioPresentationType GetAudioPresentationType(void);
-  void SetAudioPresentationType(AudioPresentationType audioPresentationTyp);
-  SamplingFrequency GetsamplingFrequency(void);
-  void SetSamplingFrequency(SamplingFrequency samplingFrequency);
- private:
-  UInt32 GetNextExpGolomb();
-  void ScalingListSkip(int skip);
-  UInt32 Width;
-  UInt32 Heigth;
-  Bytes HdmvVideoRegistrationDescriptor;
-  VideoFormat mVideoFormat;
-  AspectRatio mAspectRatio;
-  FrameRate   mFrameRate;
-  AudioPresentationType mAudioPresentationType;
-  SamplingFrequency mSamplingFrequency;
 };
 
 enum Ac3SyntaxType {
@@ -489,6 +456,33 @@ class ElementaryParse {
   Bytes ElementaryDescriptors;
 };
 
+class H264Info : ElementaryParse {
+ public:
+  H264Info(pByte data, int offset);
+  Bytes ElementaryDescriptors;
+  VideoFormat GetVideoFormati(void);
+  void SetVideoFormat(VideoFormat videoformat);
+  AspectRatio GetAspectRatio(void);
+  void SetAspectRatio(AspectRatio aspectratio);
+  FrameRate GetFrameRate(void);
+  void SetFrameRate(FrameRate frameRate);
+  AudioPresentationType GetAudioPresentationType(void);
+  void SetAudioPresentationType(AudioPresentationType audioPresentationTyp);
+  SamplingFrequency GetsamplingFrequency(void);
+  void SetSamplingFrequency(SamplingFrequency samplingFrequency);
+ private:
+  UInt32 GetNextExpGolomb();
+  void ScalingListSkip(int skip);
+  UInt32 Width;
+  UInt32 Heigth;
+  Bytes HdmvVideoRegistrationDescriptor;
+  VideoFormat mVideoFormat;
+  AspectRatio mAspectRatio;
+  FrameRate   mFrameRate;
+  AudioPresentationType mAudioPresentationType;
+  SamplingFrequency mSamplingFrequency;
+};
+
 class AC3Info : ElementaryParse {
  public:
   int MaxFrameLength;