public static void saveRawFrame(System.IO.MemoryStream data, AvcCBox avcC, string f)
{//throws IOException {
Stream raw = new System.IO.FileStream(f, FileMode.OpenOrCreate);
saveStreamParams(avcC, raw);
data.CopyTo(raw);
raw.Close();
}
public static AvcCBox parseAVCC(VideoSampleEntry vse)
{
Box lb = Box.findFirst(vse, /*Box.bclass,*/ "avcC");
if (lb is AvcCBox)
{
return((AvcCBox)lb);
}
else
{
AvcCBox avcC = new AvcCBox();
avcC.parse(((LeafBox)lb).getData().duplicate());
return(avcC);
}
}
public static void saveStreamParams(AvcCBox avcC, Stream raw)
{//throws IOException {
System.IO.MemoryStream bb = new System.IO.MemoryStream(1024);
foreach (var byteByffer in avcC.getSpsList())
{
raw.Write(new byte[] { 0, 0, 0, 1, 0x67 }, 0, 5);
Utility.escapeNAL(byteByffer.duplicate(), bb);
bb.flip();
raw.CopyTo(bb);
bb.clear();
}
foreach (var byteBuffer in avcC.getPpsList())
{
raw.Write(new byte[] { 0, 0, 0, 1, 0x68 }, 0, 5);
Utility.escapeNAL(byteBuffer.duplicate(), bb);
bb.flip();
raw.CopyTo(bb);
bb.clear();
}
}
public static SampleEntry createMOVSampleEntry(List <System.IO.MemoryStream> spsList, List <System.IO.MemoryStream> ppsList)
{
SeqParameterSet sps = readSPS(StreamExtensions.duplicate(spsList[0]));
AvcCBox avcC = new AvcCBox(sps.profile_idc, 0, sps.level_idc, spsList, ppsList);
int codedWidth = (sps.pic_width_in_mbs_minus1 + 1) << 4;
int codedHeight = getPicHeightInMbs(sps) << 4;
int width = sps.frame_cropping_flag ? codedWidth
- ((sps.frame_crop_right_offset + sps.frame_crop_left_offset) << sps.chroma_format_idc.compWidth[1])
: codedWidth;
int height = sps.frame_cropping_flag ? codedHeight
- ((sps.frame_crop_bottom_offset + sps.frame_crop_top_offset) << sps.chroma_format_idc.compHeight[1])
: codedHeight;
Size size = new Size(width, height);
SampleEntry se = videoSampleEntry("avc1", size, "JCodec");
se.Add(avcC);
return(se);
}
public static List <System.IO.MemoryStream> splitMOVPacket(System.IO.MemoryStream buf, AvcCBox avcC)
{
List <System.IO.MemoryStream> result = new List <System.IO.MemoryStream>();
int nls = avcC.getNalLengthSize();
System.IO.MemoryStream dup = buf.duplicate();
while (dup.remaining() >= nls)
{
int len = readLen(dup, nls);
if (len == 0)
{
break;
}
result.Add(StreamExtensions.read(dup, len));
}
return(result);
}
