X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.0%2Flibzmpeg3%2Fvideo%2Fheaders.C;fp=cinelerra-5.0%2Flibzmpeg3%2Fvideo%2Fheaders.C;h=0000000000000000000000000000000000000000;hb=30bdb85eb33a8ee7ba675038a86c6be59c43d7bd;hp=221a30d695df83f70a3dc31833257f34313eb31d;hpb=52fcc46226f9df46f9ce9d0566dc568455a7db0b;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.0/libzmpeg3/video/headers.C b/cinelerra-5.0/libzmpeg3/video/headers.C
deleted file mode 100644
index 221a30d6..00000000
--- a/cinelerra-5.0/libzmpeg3/video/headers.C
+++ /dev/null
@@ -1,488 +0,0 @@
-#include "../libzmpeg3.h"
-
-int zvideo_t::
-get_seq_hdr()
-{
-  int i;
-  int load_intra_quantizer_matrix, load_non_intra_quantizer_matrix;
-
-//zmsg("1\n");
-  horizontal_size = vstream->get_bits(12);
-  vertical_size = vstream->get_bits(12);
-  //int aspect_ratio =
-    vstream->get_bits(4);
-  framerate_code = vstream->get_bits(4);
-  bitrate = vstream->get_bits(18);
-  vstream->get_bit_noptr(); /* marker bit (=1) */
-  //int vbv_buffer_size =
-    vstream->get_bits(10);
-  //int constrained_parameters_flag =
-    vstream->get_bit_noptr();
-  frame_rate = frame_rate_table[framerate_code];
-
-  load_intra_quantizer_matrix = vstream->get_bit_noptr();
-  if( load_intra_quantizer_matrix ) {
-    for( i=0; i<64; ++i )
-      intra_quantizer_matrix[zigzag_scan_table[i]] = vstream->get_byte_noptr();
-  }
-  else {
-    for( i=0; i<64; ++i )
-      intra_quantizer_matrix[i] = default_intra_quantizer_matrix[i];
-  }
-
-  load_non_intra_quantizer_matrix = vstream->get_bit_noptr();
-  if( load_non_intra_quantizer_matrix ) {
-    for( i=0; i<64; ++i )
-      non_intra_quantizer_matrix[zigzag_scan_table[i]] = vstream->get_byte_noptr();
-  }
-  else {
-    for( i=0; i<64; ++i )
-      non_intra_quantizer_matrix[i] = 16;
-  }
-
-/* copy luminance to chrominance matrices */
-  for( i=0; i<64; ++i ) {
-    chroma_intra_quantizer_matrix[i] = intra_quantizer_matrix[i];
-    chroma_non_intra_quantizer_matrix[i] = non_intra_quantizer_matrix[i];
-  }
-
-//zmsg("100\n");
-  return 0;
-}
-
-
-/* decode sequence extension */
-
-int zvideo_t::
-sequence_extension()
-{
-  mpeg2 = 1;
-  scalable_mode = slice_decoder_t::sc_NONE; /* unless overwritten by seq. scal. ext. */
-  //int prof_lev =
-    vstream->get_byte_noptr();
-  prog_seq = vstream->get_bit_noptr();
-  chroma_format = vstream->get_bits(2);
-  int horizontal_size_extension = vstream->get_bits(2);
-  int vertical_size_extension = vstream->get_bits(2);
-  //int bit_rate_extension =
-    vstream->get_bits(12);
-  vstream->get_bit_noptr();
-  //int vbv_buffer_size_extension =
-    vstream->get_byte_noptr();
-  //int low_delay =
-    vstream->get_bit_noptr();
-  //int frame_rate_extension_n =
-    vstream->get_bits(2);
-  //int frame_rate_extension_d =
-    vstream->get_bits(5);
-  horizontal_size = (horizontal_size_extension << 12) | (horizontal_size & 0x0fff);
-  vertical_size = (vertical_size_extension << 12) | (vertical_size & 0x0fff);
-  return 0;
-}
-
-
-/* decode sequence display extension */
-
-int zvideo_t::
-sequence_display_extension()
-{
-  // int video_format =
-    vstream->get_bits(3);
-  int colour_description = vstream->get_bit_noptr();
-
-  if( colour_description ) {
-    //int colour_primaries =
-      vstream->get_byte_noptr();
-    //int transfer_characteristics =
-      vstream->get_byte_noptr();
-    matrix_coefficients = vstream->get_byte_noptr();
-  }
-
-  //int display_horizontal_size =
-    vstream->get_bits(14);
-  vstream->get_bit_noptr();
-  //int display_vertical_size =
-    vstream->get_bits(14);
-  return 0;
-}
-
-
-/* decode quant matrix entension */
-
-int zvideo_t::
-quant_matrix_extension()
-{
-  int i;
-  int load_intra_quantiser_matrix, load_non_intra_quantiser_matrix;
-  int load_chroma_intra_quantiser_matrix;
-  int load_chroma_non_intra_quantiser_matrix;
-
-  load_intra_quantiser_matrix = vstream->get_bit_noptr();
-  if( load_intra_quantiser_matrix != 0 ) {
-    for( i=0; i<64; ++i ) {
-      chroma_intra_quantizer_matrix[zigzag_scan_table[i]]
-        = intra_quantizer_matrix[zigzag_scan_table[i]]
-        = vstream->get_byte_noptr();
-    }
-  }
-
-  load_non_intra_quantiser_matrix = vstream->get_bit_noptr();
-  if( load_non_intra_quantiser_matrix != 0 ) {
-    for( i=0; i<64; ++i ) {
-      chroma_non_intra_quantizer_matrix[zigzag_scan_table[i]]
-        = non_intra_quantizer_matrix[zigzag_scan_table[i]]
-        = vstream->get_byte_noptr();
-    }
-  }
-
-  load_chroma_intra_quantiser_matrix = vstream->get_bit_noptr();
-  if( load_chroma_intra_quantiser_matrix != 0 ) {
-    for( i=0; i<64; ++i )
-      chroma_intra_quantizer_matrix[zigzag_scan_table[i]] = vstream->get_byte_noptr();
-  }
-
-  load_chroma_non_intra_quantiser_matrix = vstream->get_bit_noptr();
-  if( load_chroma_non_intra_quantiser_matrix != 0 ) {
-    for( i=0; i<64; ++i )
-      chroma_non_intra_quantizer_matrix[zigzag_scan_table[i]] = vstream->get_byte_noptr();
-  }
-
-  return 0;
-}
-
-
-/* decode sequence scalable extension */
-
-int zvideo_t::
-sequence_scalable_extension()
-{
-  scalable_mode = vstream->get_bits(2) + 1; /* add 1 to make sc_DP != sc_NONE */
-  //int layer_id =
-    vstream->get_bits(4);
-
-  if( scalable_mode == slice_decoder_t::sc_SPAT ) {
-    llw = vstream->get_bits(14); /* lower_layer_prediction_horizontal_size */
-    vstream->get_bit_noptr();
-    llh = vstream->get_bits(14); /* lower_layer_prediction_vertical_size */
-    hm = vstream->get_bits(5);
-    hn = vstream->get_bits(5);
-    vm = vstream->get_bits(5);
-    vn = vstream->get_bits(5);
-  }
-
-  if( scalable_mode == slice_decoder_t::sc_TEMP )
-    zerr("temporal scalability not implemented\n");
-  return 0;
-}
-
-
-/* decode picture display extension */
-
-int zvideo_t::
-picture_display_extension()
-{
-//  short frame_centre_horizontal_offset[3];
-//  short frame_centre_vertical_offset[3];
-/* per spec */
-  int n = prog_seq ? (!repeatfirst ? 1 : (!topfirst ? 2 : 3)) :
-     pict_struct != pics_FRAME_PICTURE ? 1 : (!repeatfirst ? 2 : 3) ;
-
-  for( int i=0; i<n; ++i ) {
-    //frame_centre_horizontal_offset[i] = (short)
-      vstream->get_bits(16);
-    vstream->get_bit_noptr();
-    //frame_centre_vertical_offset[i] = (short)
-      vstream->get_bits(16);
-    vstream->get_bit_noptr();
-  }
-  return 0;
-}
-
-
-/* decode picture coding extension */
-
-int zvideo_t::
-picture_coding_extension()
-{
-  h_forw_r_size = vstream->get_bits(4) - 1;
-  v_forw_r_size = vstream->get_bits(4) - 1;
-  h_back_r_size = vstream->get_bits(4) - 1;
-  v_back_r_size = vstream->get_bits(4) - 1;
-  dc_prec = vstream->get_bits(2);
-  pict_struct = vstream->get_bits(2);
-  topfirst = vstream->get_bit_noptr();
-  frame_pred_dct = vstream->get_bit_noptr();
-  conceal_mv = vstream->get_bit_noptr();
-  qscale_type = vstream->get_bit_noptr();
-  intravlc = vstream->get_bit_noptr();
-  altscan = vstream->get_bit_noptr();
-  repeatfirst = vstream->get_bit_noptr();
-  //int chroma_420_type =
-    vstream->get_bit_noptr();
-  prog_frame = vstream->get_bit_noptr();
-  if( repeat_fields > 2 ) repeat_fields = 0;
-  repeat_fields += 2;
-  if( repeatfirst ) {
-    if( prog_seq ) repeat_fields += !topfirst ? 2 : 4;
-    else if( prog_frame ) ++repeat_fields;
-  }
-  current_field = 0;
-
-//static const char *pstruct[] = { "nil", "top", "bot", "fld" };
-//zmsgs("pstruct %s prog_seq%d prog_frame%d topfirst%d repeatfirst%d repeat_fields%d\n", 
-//  pstruct[pict_struct], prog_seq , prog_frame, topfirst, repeatfirst, repeat_fields);
-
-  int composite_display_flag = vstream->get_bit_noptr();
-  if( composite_display_flag ) {
-    //int v_axis =
-      vstream->get_bit_noptr();
-    field_sequence = vstream->get_bits(3);
-    //int sub_carrier =
-      vstream->get_bit_noptr();
-    //int burst_amplitude =
-      vstream->get_bits(7);
-    //int sub_carrier_phase =
-      vstream->get_byte_noptr();
-  }
-  return 0;
-}
-
-/* decode picture spatial scalable extension */
-
-int zvideo_t::
-picture_spatial_scalable_extension()
-{
-  pict_scal = 1; /* use spatial scalability in this picture */
-  lltempref = vstream->get_bits(10);
-  vstream->get_bit_noptr();
-  llx0 = vstream->get_bits(15);
-  if(llx0 >= 16384) llx0 -= 32768;
-  vstream->get_bit_noptr();
-  lly0 = vstream->get_bits(15);
-  if(lly0 >= 16384) lly0 -= 32768;
-  stwc_table_index = vstream->get_bits(2);
-  llprog_frame = vstream->get_bit_noptr();
-  llfieldsel = vstream->get_bit_noptr();
-  return 0;
-}
-
-
-/* decode picture temporal scalable extension
- *
- * not implemented
- *
- */
-
-int zvideo_t::
-picture_temporal_scalable_extension()
-{
-  zerr("temporal scalability not supported\n");
-  return 0;
-}
-
-
-/* decode extension and user data */
-
-int zvideo_t::
-ext_user_data()
-{
-  int zcode = vstream->next_start_code();
-  if( zcode < 0 ) return 1;
-  while( zcode == EXT_START_CODE || zcode == USER_START_CODE ) {
-    vstream->refill();
-    if( zcode == EXT_START_CODE ) {
-      int ext_id = vstream->get_bits(4);
-      switch(ext_id) {
-      case ext_id_SEQ:
-        sequence_extension();
-        break;
-      case ext_id_DISP:
-        sequence_display_extension();
-        break;
-      case ext_id_QUANT:
-        quant_matrix_extension();
-        break;
-      case ext_id_SEQSCAL:
-        sequence_scalable_extension();
-        break;
-      case ext_id_PANSCAN:
-        picture_display_extension();
-        break;
-      case ext_id_CODING:
-        picture_coding_extension();
-        break;
-      case ext_id_SPATSCAL:
-        picture_spatial_scalable_extension();
-        break;
-      case ext_id_TEMPSCAL:
-        picture_temporal_scalable_extension();
-        break;
-      default:
-        zerrs("reserved extension start code ID %d\n", ext_id);
-        break;
-      }
-    }
-    else if( subtitle_track >= 0 ) {
-      int32_t id = vstream->show_bits(32);
-      if( id == 0x47413934 ) { /* "GA94" - atsc user data */
-        vstream->refill();
-        int typ = vstream->get_bits(8);
-        if( typ == 3 ) /* mpeg cc */
-          get_cc()->get_atsc_data(vstream);
-      }
-    }
-    zcode = vstream->next_start_code();
-    if( zcode < 0 ) return 1;
-  }
-//zmsgs("prog_seq=%d prog_frame=%d\n", prog_seq,prog_frame);
-  return 0;
-}
-
-
-/* decode group of pictures header */
-
-int zvideo_t::
-get_gop_header()
-{
-//zmsg("1\n");
-  has_gops = 1;
-  //int drop_flag =
-    vstream->get_bit_noptr();
-  gop_timecode.hour = vstream->get_bits(5);
-  gop_timecode.minute = vstream->get_bits(6);
-  vstream->get_bit_noptr();
-  gop_timecode.second = vstream->get_bits(6);
-  gop_timecode.frame = vstream->get_bits(6);
-  //int closed_gop =
-    vstream->get_bit_noptr();
-  //int broken_link =
-    vstream->get_bit_noptr();
-//zmsg("100\n");
-//zmsgs("%d:%d:%d:%d %d %d %d\n",
-//  gop_timecode.hour, gop_timecode.minute, gop_timecode.second,
-//  gop_timecode.frame, drop_flag, closed_gop, broken_link);
-  return vstream->error();
-}
-
-/* decode picture header */
-
-int zvideo_t::
-get_picture_hdr()
-{
-  pict_scal = 0; /* unless overwritten by pict. spat. scal. ext. */
-  //int temp_ref =
-    vstream->get_bits(10);
-  pict_type = vstream->get_bits(3);
-  //int vbv_delay =
-    vstream->get_bits(16);
-  if( pict_type == pic_type_P || pict_type == pic_type_B ) {
-    full_forw = vstream->get_bit_noptr();
-    forw_r_size = vstream->get_bits(3) - 1;
-  }
-
-  if( pict_type == pic_type_B ) {
-    full_back = vstream->get_bit_noptr();
-    back_r_size = vstream->get_bits(3) - 1;
-  }
-
-/* get extra bit picture */
-  while( !vstream->eof() && vstream->get_bit_noptr() )
-    vstream->get_bits_noptr(8);
-  return 0;
-}
-
-
-/* move to start of header. */
-/*  this updates the demuxer times */
-int zvideo_t::
-find_header()
-{
-  for( int count=0x1000; --count>=0; ) {
-    int zcode = vstream->next_start_code();
-    if( zcode < 0 ) break;
-    switch(zcode) {
-    case SEQUENCE_START_CODE:
-    case GOP_START_CODE:
-    case PICTURE_START_CODE:
-      return 0;
-    }
-    vstream->refill();
-  }
-
-  return 1;
-}
-
-
-int zvideo_t::
-get_header()
-{
-// Stop search after this many start codes
-  for( int count=0x1000; --count>=0; ) {
-/* look for startcode */
-    int zcode = vstream->next_start_code();
-    if( zcode < 0 ) break;
-    vstream->refill();
-
-    switch(zcode) {
-    case SEQUENCE_START_CODE:
-/* a sequence header should be found before returning from get_header the */
-/* first time (this is to set horizontal/vertical size properly) */
-      found_seqhdr = 1;
-      get_seq_hdr();  
-      ext_user_data();
-      break;
-
-    case GOP_START_CODE:
-      get_gop_header();
-      ext_user_data();
-      break;
-
-    case PICTURE_START_CODE:
-      get_picture_hdr();
-      ext_user_data();
-      if( cc ) cc->reorder();
-      if( found_seqhdr )
-        return 0;       /* Exit here */
-      break;
-    }
-  }
-
-  return 1;
-}
-
-int zslice_buffer_t::
-ext_bit_info()
-{
-  while( get_bit() ) get_bits(8);
-  return 0;
-}
-
-/* decode slice header */
-int zslice_decoder_t::
-get_slice_hdr()
-{
-  int slice_vertical_position_extension;
-  int qs;
-  slice_vertical_position_extension =
-    (video->mpeg2 && video->vertical_size>2800) ?
-      slice_buffer->get_bits(3) : 0;
-
-  if( video->scalable_mode == sc_DP )
-    pri_brk = slice_buffer->get_bits(7);
-
-  qs = slice_buffer->get_bits(5);
-  quant_scale = video->mpeg2 ?
-    (video->qscale_type ? non_linear_mquant_table[qs] : (qs << 1)) :
-    qs;
-
-//int intra_slice = 0;
-  if( slice_buffer->get_bit() ) {
-    //intra_slice =
-      slice_buffer->get_bit();
-    slice_buffer->get_bits(7);
-    slice_buffer->ext_bit_info();
-  }
-
-  return slice_vertical_position_extension;
-}
-