diff options
Diffstat (limited to 'BDInfo/TSCodecDTS.cs')
| -rw-r--r-- | BDInfo/TSCodecDTS.cs | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/BDInfo/TSCodecDTS.cs b/BDInfo/TSCodecDTS.cs deleted file mode 100644 index ff94cb702..000000000 --- a/BDInfo/TSCodecDTS.cs +++ /dev/null @@ -1,159 +0,0 @@ -//============================================================================ -// BDInfo - Blu-ray Video and Audio Analysis Tool -// Copyright © 2010 Cinema Squid -// -// This library is free software; you can redistribute it and/or -// modify it under the terms of the GNU Lesser General Public -// License as published by the Free Software Foundation; either -// version 2.1 of the License, or (at your option) any later version. -// -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -// Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public -// License along with this library; if not, write to the Free Software -// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -//============================================================================= - - -namespace BDInfo -{ - public abstract class TSCodecDTS - { - private static int[] dca_sample_rates = - { - 0, 8000, 16000, 32000, 0, 0, 11025, 22050, 44100, 0, 0, - 12000, 24000, 48000, 96000, 192000 - }; - - private static int[] dca_bit_rates = - { - 32000, 56000, 64000, 96000, 112000, 128000, - 192000, 224000, 256000, 320000, 384000, - 448000, 512000, 576000, 640000, 768000, - 896000, 1024000, 1152000, 1280000, 1344000, - 1408000, 1411200, 1472000, 1509000, 1920000, - 2048000, 3072000, 3840000, 1/*open*/, 2/*variable*/, 3/*lossless*/ - }; - - private static int[] dca_channels = - { - 1, 2, 2, 2, 2, 3, 3, 4, 4, 5, 6, 6, 6, 7, 8, 8 - }; - - private static int[] dca_bits_per_sample = - { - 16, 16, 20, 20, 0, 24, 24 - }; - - public static void Scan( - TSAudioStream stream, - TSStreamBuffer buffer, - long bitrate, - ref string tag) - { - if (stream.IsInitialized) return; - - bool syncFound = false; - uint sync = 0; - for (int i = 0; i < buffer.Length; i++) - { - sync = (sync << 8) + buffer.ReadByte(); - if (sync == 0x7FFE8001) - { - syncFound = true; - break; - } - } - if (!syncFound) return; - - int frame_type = buffer.ReadBits(1); - int samples_deficit = buffer.ReadBits(5); - int crc_present = buffer.ReadBits(1); - int sample_blocks = buffer.ReadBits(7); - int frame_size = buffer.ReadBits(14); - if (frame_size < 95) - { - return; - } - int amode = buffer.ReadBits(6); - int sample_rate = buffer.ReadBits(4); - if (sample_rate < 0 || sample_rate >= dca_sample_rates.Length) - { - return; - } - int bit_rate = buffer.ReadBits(5); - if (bit_rate < 0 || bit_rate >= dca_bit_rates.Length) - { - return; - } - int downmix = buffer.ReadBits(1); - int dynrange = buffer.ReadBits(1); - int timestamp = buffer.ReadBits(1); - int aux_data = buffer.ReadBits(1); - int hdcd = buffer.ReadBits(1); - int ext_descr = buffer.ReadBits(3); - int ext_coding = buffer.ReadBits(1); - int aspf = buffer.ReadBits(1); - int lfe = buffer.ReadBits(2); - int predictor_history = buffer.ReadBits(1); - if (crc_present == 1) - { - int crc = buffer.ReadBits(16); - } - int multirate_inter = buffer.ReadBits(1); - int version = buffer.ReadBits(4); - int copy_history = buffer.ReadBits(2); - int source_pcm_res = buffer.ReadBits(3); - int front_sum = buffer.ReadBits(1); - int surround_sum = buffer.ReadBits(1); - int dialog_norm = buffer.ReadBits(4); - if (source_pcm_res < 0 || source_pcm_res >= dca_bits_per_sample.Length) - { - return; - } - int subframes = buffer.ReadBits(4); - int total_channels = buffer.ReadBits(3) + 1 + ext_coding; - - stream.SampleRate = dca_sample_rates[sample_rate]; - stream.ChannelCount = total_channels; - stream.LFE = (lfe > 0 ? 1 : 0); - stream.BitDepth = dca_bits_per_sample[source_pcm_res]; - stream.DialNorm = -dialog_norm; - if ((source_pcm_res & 0x1) == 0x1) - { - stream.AudioMode = TSAudioMode.Extended; - } - - stream.BitRate = (uint)dca_bit_rates[bit_rate]; - switch (stream.BitRate) - { - case 1: - if (bitrate > 0) - { - stream.BitRate = bitrate; - stream.IsVBR = false; - stream.IsInitialized = true; - } - else - { - stream.BitRate = 0; - } - break; - - case 2: - case 3: - stream.IsVBR = true; - stream.IsInitialized = true; - break; - - default: - stream.IsVBR = false; - stream.IsInitialized = true; - break; - } - } - } -} |