Кое какие данные по видео и аудио потокам, которые могут быть на Blu-Ray-е
(выдержки) —
MPEG-2 video stream for Primary and Secondary video
MPEG-4 AVC video stream for Primary and Secondary video
SMPTE VC-1 video stream for Primary and Secondary video
Linear PCM audio stream for Primary audio
Dolby Digital (AC-3) and Dolby Digital Plus audio streams for Primary audio
Dolby Lossless audio streams for Primary audio
DTS and DTS-HD audio stream for Primary audio
Dolby Digital Plus audio stream for Secondary audio
DTS-HD LBR audio stream for Secondary audio
Presentation Graphics stream
Interactive Graphics stream
HDMV Text subtitle stream
Что касается HDMV MPEG-2, то он может быть —
Интерлейсные форматы:
525/60 video format (720х480), (4:3 или 16×9), 29.97 frame_rate_value [Hz], интерлейс, 60 Maximum number of fields displayed in a GOP;
625/50 video format (720х576), (4:3 или 16×9), 25 frame_rate_value [Hz], интерлейс, 50 Maximum number of fields
displayed in a GOP;
1920×1080 video format, 29.97 или 25 frame_rate_value [Hz], интерлейс, 60/50 Maximum number of fields
displayed in a GOP
Прогресивные форматы:
1920,1440×1080 video format (16×9), 23.976 или 24 frame_rate_value [Hz], прогресив, 24/24 Maximum number of fields
displayed in a GOP;
1280×720 video format (16×9), 59.94 или 50 или 23.976 или 24 frame_rate_value [Hz], прогресив, 60/50/24/24 Maximum number of fields displayed in a GOP соответственно;
The maximum number of coded B-frames between consecutive coded I or P frame shall be two.
Что касается HDMV MPEG-4 AVC —
High profile or Main profile,
Level 4.1 or 4 in case of 1920×1080, 1440×1080, 1280×720,
Level 4.1, 4, 3.2, 3.1 or 3 in case of 720×480, 720×576,
частоты кадров и интерлейса и прогресива соответствуют тому-же, что и в MPEG 2
Что касается SMPTE VC-1 video streams —
Profile: Advanced profile;
Level:
Level 3 in case of 1920×1080, 1440×1080, 1280×720
Level 2 in case of 720×480, 720×576
частоты кадров и интерлейса и прогресива соответствуют тому-же, что и в MPEG 2.
Максимальный битрэйт для каждого из форматов видео — свой.
По звуку.
Может быть:
1. HDMV LPCM audio streams —
Sampling frequency shall be 48 kHz, 96 kHz or 192 kHz.
Bits per sample can be 16, 20 or 24 bits per sample.
Number of channels shall be 2, 4, 6 or 8 channels. All the channels shall be sampled
simultaneously on sampling phase.
Расположение каналов в потоке также стандартизовано.
2. Dolby Digital (AC-3) and Dolby Digital Plus audio streams —
3. Dolby Lossless audio streams (TrueHD)
Bitrate: Bitrate shall be Variable.
Sampling rates: Shall be 48 kHz, 96 kHz or 192 kHz and identical on all channels.
Sampling phase: For all channels sampling phase shall be simultaneous.
Wordsize: The quantization of source data and of coded data may be different. The quantization of
coded data is always 24 bits. When the quantization of source data is fewer than 24, the source
data is padded to 24 bits by adding bits of ZERO as the least significant bit(s).
The following stream restrictions apply:
The stream shall include support for a 2-ch decoder.
The stream shall include support for a 6-ch decoder when the total stream contains more
than 6 channels.
The stream shall include support for an 8-ch decoder.
4. DTS and DTS-HD audio streams —
DTS —
Core audio data part of the Synchronized frame
Duration of Synchronized Frame: 512 samples per channel
Sampling Frequency (Fs): 48 kHz
Bit Rate: 192*103 to 1509*103 bits/second
Audio Channel Arrangement: 1/0, 2/0, 3/0, 3/1, 2/1, 2/2, 3/2
Low Frequency Effects Flag: Available