//---------------------------------------------------------------------------
// Packet "00"
void File_Dirac::Sequence_header()
{
Element_Name("Sequence header");
//Parsing
int32u version_major, version_minor, profile, level, base_video_format;
BS_Begin();
Get_UI(version_major, "version major");
Get_UI(version_minor, "version minor");
Get_UI(profile, "profile");
Get_UI(level, "level");
if (version_major<=2)
{
Get_UI(base_video_format, "base video format"); //Param_Info1(Dirac_base_video_format(base_video_format));
Dirac_base_video_format(base_video_format, frame_width, frame_height, chroma_format, source_sampling,
clean_width, clean_height, clean_left_offset, clean_top_offset,
frame_rate, pixel_aspect_ratio);
TEST_SB_SKIP( "custom dimensions flag");
Get_UI (frame_width, "frame width");
Get_UI (frame_height, "frame height");
TEST_SB_END();
TEST_SB_SKIP( "custom chroma format flag");
Get_UI (chroma_format, "chroma format"); Param_Info1(Dirac_chroma_format(chroma_format));
TEST_SB_END();
TEST_SB_SKIP( "custom scan format flag");
Get_UI (source_sampling, "source sampling"); Param_Info1(Dirac_source_sampling(source_sampling));
TEST_SB_END();
TEST_SB_SKIP( "frame rate flag");
int32u frame_rate_index;
Get_UI (frame_rate_index, "index"); Param_Info1(Dirac_frame_rate(frame_rate_index));
if (frame_rate_index==0)
{
int32u frame_rate_numer, frame_rate_denom;
Get_UI (frame_rate_numer, "frame rate numer");
Get_UI (frame_rate_denom, "frame rate denom");
frame_rate=((float32)frame_rate_numer)/((float32)frame_rate_denom);
}
else
frame_rate=Dirac_frame_rate(frame_rate_index);
TEST_SB_END();
TEST_SB_SKIP( "pixel aspect ratio flag");
int32u pixel_aspect_ratio_index;
Get_UI (pixel_aspect_ratio_index, "index"); Param_Info1(Dirac_pixel_aspect_ratio(pixel_aspect_ratio_index));
if (pixel_aspect_ratio_index==0)
{
int32u pixel_aspect_ratio_numer, pixel_aspect_ratio_denom;
Get_UI (pixel_aspect_ratio_numer, "pixel aspect ratio numer");
Get_UI (pixel_aspect_ratio_denom, "pixel aspect ratio denom");
pixel_aspect_ratio=((float32)pixel_aspect_ratio_numer)/((float32)pixel_aspect_ratio_denom);
}
else
pixel_aspect_ratio=Dirac_pixel_aspect_ratio(pixel_aspect_ratio_index);
TEST_SB_END();
TESTELSE_SB_SKIP( "custom clean area flag");
Get_UI (clean_width, "clean width");
Get_UI (clean_height, "clean height");
Get_UI (clean_left_offset, "clean left offset");
Get_UI (clean_top_offset, "clean top offset");
TESTELSE_SB_ELSE( "custom clean area flag");
clean_width=frame_width;
clean_height=frame_height;
TESTELSE_SB_END();
TEST_SB_SKIP( "custom signal range flag");
int32u custom_signal_range_index;
Get_UI(custom_signal_range_index, "index");
if (custom_signal_range_index==0)
{
Skip_UI( "luma offset");
Skip_UI( "luma excursion");
Skip_UI( "chroma offset");
Skip_UI( "chroma excursion");
}
TEST_SB_END();
TEST_SB_SKIP( "custom colour spec flag");
int32u custom_colour_spec_index;
Get_UI(custom_colour_spec_index, "index");
if (custom_colour_spec_index==0)
{
TEST_SB_SKIP( "custom colour primaries flag");
Skip_UI( "custom colour primaries index");
TEST_SB_END();
TEST_SB_SKIP( "colour matrix flag");
Skip_UI( "colour matrix index");
TEST_SB_END();
TEST_SB_SKIP( "custom transfer function flag");
Skip_UI( "custom transfer function index");
TEST_SB_END();
}
TEST_SB_END();
Info_UI(picture_coding_mode, "picture coding mode"); Param_Info1(Dirac_picture_coding_mode(picture_coding_mode));
}
else
{
Skip_XX(Element_Size-Element_Offset, "Unknown");
}
FILLING_BEGIN();
//Autorisation of other streams
Streams[0x10].Searching_Payload=true; //End_of_Sequence
Streams[0x20].Searching_Payload=true; //Auxiliary_data
Streams[0x30].Searching_Payload=true; //Padding_data
Streams[0x0C].Searching_Payload=true; //Intra_Reference_Picture
Streams[0x08].Searching_Payload=true; //Intra_Non_Reference_Picture
Streams[0x4C].Searching_Payload=true; //Intra_Reference_Picture_No
Streams[0x48].Searching_Payload=true; //Intra_Non_Reference_Picture_No
Streams[0x0D].Searching_Payload=true; //Inter_Reference_Picture_1
Streams[0x0E].Searching_Payload=true; //Inter_Reference_Picture_2
Streams[0x09].Searching_Payload=true; //Inter_Non_Reference_Picture_1
Streams[0x0A].Searching_Payload=true; //Inter_Non_Reference_Picture_2
Streams[0xCC].Searching_Payload=true; //Reference_Picture_Low
Streams[0xC8].Searching_Payload=true; //Intra_Non_Reference_Picture_Low
FILLING_END();
}
//---------------------------------------------------------------------------
// Packet "0F"
void File_Vc1::SequenceHeader()
{
Element_Name("SequenceHeader");
//Parsing
BS_Begin();
Get_S1 ( 2, profile, "profile"); Param_Info(Vc1_Profile[profile]);
if (profile==0 || profile==1) //Simple or Main
{
Skip_S1( 2, "res_sm");
Skip_S1( 3, "frmrtq_postproc");
Skip_S1( 5, "bitrtq_postproc");
Skip_SB( "loopfilter");
Skip_SB( "res_x8");
Skip_SB( "multires");
Skip_SB( "res_fasttx");
Skip_SB( "fastuvmc");
Skip_SB( "extended_mv");
Skip_S1( 2, "dquant");
Skip_SB( "vtransform");
Skip_SB( "res_transtab");
Skip_SB( "overlap");
Skip_SB( "syncmarker");
Skip_SB( "rangered");
Skip_S1( 2, "maxbframes");
Skip_S1( 2, "quantizer");
Skip_SB( "finterpflag");
Skip_SB( "res_rtm_flag");
}
else if (profile==3) //Advanced
{
Get_S1 ( 3, level, "level");
Get_S1 ( 2, colordiff_format, "colordiff_format"); Param_Info(Vc1_ColorimetryFormat[colordiff_format]);
Skip_S1( 3, "frmrtq_postproc");
Skip_S1( 5, "bitrtq_postproc");
Skip_SB( "postprocflag");
Get_S2 (12, coded_width, "max_coded_width"); Param_Info((coded_width+1)*2, " pixels");
Get_S2 (12, coded_height, "max_coded_height"); Param_Info((coded_height+1)*2, " pixels");
Get_SB ( pulldown, "pulldown");
Get_SB ( interlace, "interlace");
Get_SB ( tfcntrflag, "tfcntrflag - frame counter");
Get_SB ( finterpflag, "finterpflag");
Skip_SB( "reserved");
Get_SB ( psf, "psf - progressive segmented frame");
TEST_SB_SKIP( "display_ext");
Info_S2(14, display_x, "display_horiz_size"); Param_Info(display_x+1, " pixels");
Info_S2(14, display_y, "display_vert_size"); Param_Info(display_y+1, " pixels");
TEST_SB_SKIP( "aspectratio_flag");
Get_S1 ( 4, AspectRatio, "aspect_ratio"); Param_Info(Vc1_PixelAspectRatio[AspectRatio]);
if (AspectRatio==0x0F)
{
Get_S1 ( 8, AspectRatioX, "aspect_horiz_size");
Get_S1 ( 8, AspectRatioY, "aspect_vert_size");
}
TEST_SB_END();
TEST_SB_GET(framerate_present, "framerate_flag");
TESTELSE_SB_GET(framerate_form, "framerateind");
Get_S2 (16, framerateexp, "framerateexp"); Param_Info((float32)((framerateexp+1)/32.0), 3, " fps");
TESTELSE_SB_ELSE( "framerateind");
Get_S1 ( 8, frameratecode_enr, "frameratenr"); Param_Info(Vc1_FrameRate_enr(frameratecode_enr));
Get_S1 ( 4, frameratecode_dr, "frameratedr"); Param_Info(Vc1_FrameRate_dr(frameratecode_dr));
TESTELSE_SB_END();
TEST_SB_END();
TEST_SB_SKIP( "color_format_flag");
Skip_S1( 8, "color_prim");
Skip_S1( 8, "transfer_char");
Skip_S1( 8, "matrix_coef");
TEST_SB_END();
TEST_SB_END();
TEST_SB_GET (hrd_param_flag, "hrd_param_flag");
Get_S1 ( 5, hrd_num_leaky_buckets, "hrd_num_leaky_buckets");
Skip_S1( 4, "bitrate_exponent");
Skip_S1( 4, "buffer_size_exponent");
for (int8u Pos=0; Pos<hrd_num_leaky_buckets; Pos++)
{
Element_Begin("leaky_bucket");
Skip_S2(16, "hrd_rate");
Skip_S2(16, "hrd_buffer");
Element_End();
}
TEST_SB_END();
}
else //forbidden
{
Element_DoNotTrust("Forbidden value");
}
Mark_1();
BS_End();
FILLING_BEGIN();
//NextCode
NextCode_Clear();
NextCode_Add(0x0D);
NextCode_Add(0x0E);
//Autorisation of other streams
Streams[0x0D].Searching_Payload=true;
Streams[0x0E].Searching_Payload=true;
if (From_WMV3)
FrameHeader_Fill();
FILLING_END();
}
