const char* DPX_ColorimetricSpecification(int8u ColorimetricSpecification)
{
switch (ColorimetricSpecification)
{
case 1 : return "Printing density";
case 5 : //SMPTE 274M, for HDTV, mapped to BT.709
case 6 : return Mpegv_colour_primaries(1); //BT.709
case 7 : return Mpegv_colour_primaries(5); //BT.470 System B, BT.470 System G (typo in specs?), mapped to BT.601 PAL
case 8 : return Mpegv_colour_primaries(6); //BT.470 System M (typo in specs?), mapped to BT.601 NTSC
case 9 : return Mpegv_colour_primaries(6); //BT.601 NTSC
case 10 : return Mpegv_colour_primaries(5); //BT.601 PAL
default : return "";
}
}
//---------------------------------------------------------------------------
void File_ProRes::Read_Buffer_Continue()
{
//Parsing
int32u Name, creatorID;
int16u hdrSize, version, frameWidth, frameHeight;
int8u chrominance_factor, frame_type, primaries, transf_func, colorMatrix;
bool IsOk=true, luma, chroma;
Element_Begin1("Header");
Skip_B4( "Size");
Get_C4 (Name, "Name");
Element_End();
Element_Begin1("Frame header");
Get_B2 (hdrSize, "hdrSize");
Get_B2 (version, "version");
Get_C4 (creatorID, "creatorID");
Get_B2 (frameWidth, "frameWidth");
Get_B2 (frameHeight, "frameHeight");
BS_Begin();
Get_S1 (2, chrominance_factor, "chrominance factor"); Param_Info1(ProRes_chrominance_factor(chrominance_factor));
Skip_S1(2, "reserved");
Get_S1 (2, frame_type, "frame type"); Param_Info1(ProRes_frame_type_ScanType(frame_type)); Param_Info1(ProRes_frame_type_ScanOrder(frame_type));
Skip_S1(2, "reserved");
BS_End();
Skip_B1( "reserved");
Get_B1 (primaries, "primaries"); Param_Info1(Mpegv_colour_primaries(primaries));
Get_B1 (transf_func, "transf_func"); Param_Info1(Mpegv_transfer_characteristics(transf_func));
Get_B1 (colorMatrix, "colorMatrix"); Param_Info1(Mpegv_matrix_coefficients(colorMatrix));
BS_Begin();
Skip_S1(4, "src_pix_fmt");
Skip_S1(4, "alpha_info");
BS_End();
Skip_B1( "reserved");
BS_Begin();
Skip_S1(6, "reserved");
Get_SB (luma, "custom luma quant matrix present");
Get_SB (chroma, "custom chroma quant matrix present");
BS_End();
if (luma)
Skip_XX(64, "QMatLuma");
if (chroma)
Skip_XX(64, "QMatChroma");
Element_End();
if (Element_Offset!=8+(int32u)hdrSize)
IsOk=false;
for (int8u PictureNumber=0; PictureNumber<(frame_type?2:1); PictureNumber++)
{
Element_Begin1("Picture layout");
int16u total_slices;
vector<int16u> slices_size;
Element_Begin1("Picture header");
int64u pic_hdr_End, pic_data_End;
int32u pic_data_size;
int8u pic_hdr_size;
Get_B1 (pic_hdr_size, "pic_hdr_size");
if (pic_hdr_size<64)
{
Trusted_IsNot("pic_hdr_size");
Element_End();
Element_End();
return;
}
pic_hdr_End=Element_Offset+pic_hdr_size/8-((pic_hdr_size%8)?0:1);
Get_B4 (pic_data_size, "pic_data_size");
if (pic_data_size<8)
{
Trusted_IsNot("pic_data_size");
Element_End();
Element_End();
return;
}
pic_data_End=Element_Offset+pic_data_size-5;
Get_B2 (total_slices, "total_slices");
BS_Begin();
Skip_S1(4, "slice_width_factor");
Skip_S1(4, "slice_height_factor");
BS_End();
if (Element_Offset<pic_hdr_End)
Skip_XX(pic_hdr_End-Element_Offset, "Unknown");
Element_End();
Element_Begin1("Slice index table");
for (int16u Pos=0; Pos<total_slices; Pos++)
{
int16u slice_size;
Get_B2 (slice_size, "slice_size");
slices_size.push_back(slice_size);
}
Element_End();
for (int16u Pos=0; Pos<slices_size.size(); Pos++)
{
Skip_XX(slices_size[Pos], "slice data");
}
if (Element_Offset<pic_data_End)
Skip_XX(pic_data_End-Element_Offset, "Unknown");
Element_End();
}
bool IsZeroes=true;
for (size_t Pos=(size_t)Element_Offset; Pos<(size_t)Element_Size; Pos++)
if (Buffer[Buffer_Offset+Pos])
{
IsZeroes=false;
break;
}
Skip_XX(Element_Size-Element_Offset, IsZeroes?"Zeroes":"Unknown");
FILLING_BEGIN();
if (IsOk && Name==0x69637066 && !Status[IsAccepted]) //icpf
{
Accept();
Fill();
Fill(Stream_Video, 0, Video_Format_Version, __T("Version ")+Ztring::ToZtring(version));
Fill(Stream_Video, 0, Video_Width, frameWidth);
Fill(Stream_Video, 0, Video_Height, frameHeight);
Fill(Stream_Video, 0, Video_Encoded_Library, ProRes_creatorID(creatorID));
Fill(Stream_Video, 0, Video_ChromaSubsampling, ProRes_chrominance_factor(chrominance_factor));
Fill(Stream_Video, 0, Video_ScanType, ProRes_frame_type_ScanType(frame_type));
Fill(Stream_Video, 0, Video_ScanOrder, ProRes_frame_type_ScanOrder(frame_type));
Fill(Stream_Video, 0, Video_colour_description_present, "Yes");
Fill(Stream_Video, 0, Video_colour_primaries, Mpegv_colour_primaries(primaries));
Fill(Stream_Video, 0, Video_transfer_characteristics, Mpegv_transfer_characteristics(transf_func));
Fill(Stream_Video, 0, Video_matrix_coefficients, Mpegv_matrix_coefficients(colorMatrix));
Finish();
}
FILLING_END();
}