AAUX Source (AS) Pack
| Microsoft DirectShow 9.0 |
AAUX Source (AS) Pack
The following tables list the values used by the MSDV driver to fill in the dwDVAAuxSrc and dwDVAAuxSrc1 members of the DVINFO structure. For more information, see DVINFO Field Settings in the MSDV Driver.
DVCR Settings
| DV Standard | DVCR (IEC 61834) | |||
|---|---|---|---|---|
| FOURCC | dvsl | dvsd | ||
| System | 525-60 | 625-50 | 525-60 | 625-50 |
| LF (1) | 1 | 1 | 1 | 1 |
| Reserved (1) | 1 | 1 | 1 | 1 |
| AF SIZE (6) | 00:1111 | 01:0000 | 00:1111 | 01:0000 |
| SM (1) | 0 | 0 | 0 | 0 |
| CHN (2) | 01 | 01 | 01 | 01 |
| PA (1) | 1 | 1 | 1 | 1 |
| AUDIO MODE (4) | ||||
| Audio Block 1* | 0000 | 0000 | 0000 | 0000 |
| Audio Block 2* | 0000 | 0000 | 1111 | 1111 |
| Reserved (1) | 1 | 1 | 1 | 1 |
| ML (1) | 1 | 1 | 1 | 1 |
| 50/60 (1) | 0 | 1 | 0 | 1 |
| STYPE (5) | 0:0001 | 0:0001 | 0:0000 | 0:0000 |
| EF (1) | 1 | 1 | 1 | 1 |
| TC (1) | 1 | 1 | 1 | 1 |
| SMP (3) | 010 | 010 | 010 | 010 |
| QU (3) | 001 | 001 | 001 | 001 |
| AS Pack | ||||
| Audio Block 1* | 0xD1C130CF | 0xD1E130D0 | 0xD1C030CF | 0xD1E030D0 |
| Audio Block 2* | 0x00000000 | 0x00000000 | 0xD1C03FCF | 0xD1E03FD0 |
DVCR 25 and DVCPRO 50 Settings (Planned)
| DV Standard | DVCPRO (SMPTE 314M) — Planned | |||
|---|---|---|---|---|
| FOURCC | dv25 | dv50 | ||
| System | 525-60 | 625-50 | 525-60 | 625-50 |
| LF (1) | 0 | 0 | 0 | 0 |
| Reserved (1) | 1 | 1 | 1 | 1 |
| AF SIZE (6) | 01:0110 | 01:1000 | 01:0110 | 01:1000 |
| Reserved (1) | 0 | 0 | 0 | 0 |
| CHN (2) | 00 | 00 | 00 | 00 |
| Reserved (1) | 1 | 1 | 1 | 1 |
| AUDIO MODE (4) | ||||
| Audio Block 1* | 0000 | 0000 | 0000 | 0000 |
| Audio Block 2* | 0001 | 0001 | 0001 | 0001 |
| Reserved (2) | 11 | 11 | 11 | 11 |
| 50/60 (1) | 0 | 1 | 0 | 1 |
| STYPE (5) | 0:0000 | 0:0000 | 0:0010 | 0:0010 |
| Reserved (2) | 11 | 11 | 11 | 11 |
| SMP (3) | 000 | 000 | 000 | 000 |
| QU (3) | 000 | 000 | 000 | 000 |
| AS Pack | ||||
| Audio Block 1* | 0xC0C01056 | 0xC0E01058 | 0xC0C21056 | 0xC0E21058 |
| Audio Block 2* | 0xC0C01156 | 0xC0E01158 | 0xC0C21156 | 0xC0E21158 |
* The DVINFO structure contains two AAUX AS packs, for audio blocks 1 and 2. DV50 has four audio blocks; blocks 3 and 4 are not represented in the DVINFO structure.
DVCR 100 Settings (Planned)
| DV Standard | DVCPRO 100 — Planned | ||
|---|---|---|---|
| FOURCC | dvh1 | ||
| System | 1080-60i | 720-60p | 1080-50i |
| LF (1) | 0 | 0 | 0 |
| Reserved (1) | 1 | 1 | 1 |
| AF SIZE (6) | 01:0110 | 01:0110 | 01:1000 |
| Reserved (1) | 0 | 0 | 0 |
| CHN (2) | 00 | 00 | 00 |
| Reserved (1) | 1 | 1 | 1 |
| AUDIO MODE (4) | |||
| Audio Block 1* | 0000 | 0000 | 0000 |
| Audio Block 2* | 0001 | 0001 | 0001 |
| Reserved (2) | 11 | 11 | 11 |
| 50/60 (1) | 0 | 0 | 1 |
| STYPE (5) | 0:0011 | 0:0011 | 0:0011 |
| Reserved (2) | 11 | 11 | 11 |
| SMP (3) | 000 | 000 | 000 |
| QU (3) | 000 | 000 | 000 |
| AS Pack | |||
| Audio Block 1* | 0xC0C31056 | 0xC0C31056 | 0xC0D31058 |
| Audio Block 2* | 0xC0C31156 | 0xC0C31156 | 0xC0D31158 |
* DVCPRO 100 has 8 audio blocks; blocks 3 through 8 are not represented in the DVINFO structure.
Remarks
The following field codes are of interest:
LF: Locked mode flag. Indicates whether the audio is locked.
- 0 = Locked
- 1 = Unlocked
AF SIZE: Audio frame size. Specifies the number of audio samples per frame.
IEC 61834 definition:
- 00:1111 = 1068 samples per frame
- 01:0000 = 1280 samples per frame
SMPTE 314M definition:
- 01:0110 = 1602 samples per frame
- 01:1000 = 1920 samples per frame
Depending on the frame rate, the exact number of samples in a frame might vary. For example, NTSC is 30000/1001 frames per second (29.97 fps). With 32-kHz audio, there are about 1067.73 audio samples per frame. Thus, the nominal rate is 1068, but the actual number varies per frame. Also, with unlocked audio, the number of audio samples per frame is allowed to vary within a certain range over time.
SM: Stereo mode.
- 0 = Stereo
- 1 = Mono
CHN: Number of audio channels per audio block.
- 0 = One channel per audio block
- 1 = Two channels per audio block
AUDIO MODE: Indicates the contents of the audio signal on each channel. The interpretation of this field depends on what values are placed in the SM and CHN fields. The definitions given below are for the values used by MSDV; refer to the specifications for more information.
IEC 61834 definition:
- 0000 = Ch a/c/e/g is left channel, Ch b/d/f/h is right channel
- 1111 = no audio data
SMPTE 314M definition:
- 0000 = CH1 (CH3)
- 0001 = CH2 (CH4)
50/60: Number of fields.
- 0 = 60 fields
- 1 = 50 fields
STYPE: System type.
IEC 61834 definition:
- 00000 = 525-60 or 625-50, dvsd
- 00001 = 525-60 or 625-50, dvsl (see IEC 61883-5)
SMPTE 314M/SPMTE 370 definition:
- 00000 = 2 audio blocks per video frame
- 00010 = 4 audio blocks per video frame
- 00011 = 8 audio blocks per video frame
SMP: Sampling frequency.
- 000 = 48 kHz
- 010 = 32 kHz
QU: Quantization.
- 0 = 16 bits linear
- 1 = 12 bits non-linear
See Also