Transport Stream Conformance

• Analysis of the T-STD buffer for both audio and video elementary streams.
• Perform ISO tests for transport stream compliance according to ISO/IEC 13818-4. Includes the following tests:
  • Transport packet header
  • Adaptation field
  • Discontinuity
  • Random access
  • PES header
  • General tests for sections
  • PSI tables
  • Private section
  • Descriptor
  • Timing accuracy
• Perform ETSI TR-101-290 compliance tests. Includes the following:
  • First Priority
    • TS sync loss
    • Sync byte error
    • PAT error
    • Continuity count error
    • PMT error
    • PID error
  • Second Priority
    • Transport error
    • CRC error
    • PCR repetition error
    • PCR discontinuity indicator error
    • PCR accuracy error
    • PTS error
    • CAT error
  • Third Priority
    • NIT actual error
    • NIT other error
    • Unreferenced PID
    • SDT actual error
    • SDT other error
    • EIT actual error
    • EIT other error
    • EIT PF error
    • RST error
    • TDT error

Program Stream Conformance

• Perform ISO tests for program stream compliance according to ISO/IEC 13818-4. Includes the following:
  • Pack level
  • System header
  • Program stream map
  • PES header
• Analysis of the P-STD buffer for both audio and video elementary streams.

VOD CEP Compliance Test

VOD CEP compliance test is only applicable to MPEG-2 TS streams that contains MPEG-2 video (MPEG Audio is optional for HD profile). This test performs the following tests according to CableLabs VOD Content Encoding Profiles 2.0 Specification:

• Video Encoding Specification
• Closed Captioning/V-Chip Specification

  Note: This test is the same as the CC and XDS Existence Test

• Audio Encoding Specification
• MPEG-2 Systems Constraints
  • Video PES Constraints
  • Transport Stream Constraints
  • Transport Bitrate constraints
  • PSI Constraints
  • PID Value Constraints
• Standard Definition (SD) Encoding Constraints
• High Definition (HD) Encoding Constraints

Note: Transport stream tests and MPEG-2 video conformance tests are also required.

Note: Metadata specification test is not included.

Note: Usage of ANSI/SCTE 35 test is not included.

Closed Caption (CC) and XDS (VChip/CGMS-A) Existence Test

AutoCheck supports NTSC caption data (Closed Caption and/or XDS data) carried over the following user data formats:

• ATSC-A53/EIA-708
• SCTE-20
• Dish Network
• Omneon

This test checks the existence of the following contents:

• EIA/CEA-608 CC
• EIA/CEA-708 CC
• XDS VChip/Content Advisory
• XDS CGMS-A

Note: When the carrier data format is ATSC-A53/EIA-708, only NTSC caption data are actually decoded and displayed. Currently DTV-CC is only checked for existence.

Note: This test is only available with the VOD CEP 2.0 license. Currently this test is only applicable to MPEG-2 video. Support for auxiliary data carried within H.264/AVC and VC-1 are pending finalization of the specifications.

MPEG-2/MPEG-1 Video Conformance

• MPEG-2/MPEG-1 video conformance test

  This test checks semantic rules and data integrity according to ISO/IEC 13818-2 (ISO/IEC 11172-2 for MPEG-1)

• Video Buffering Verifier (VBV) conformance test

  This test checks for bit rate and buffer occupancy violations according to Annex C of ISO/IEC 13818-2

MPEG-4 v2 /H.263 Video Conformance

• MPEG-4 v2 video conformance test

  This test checks semantic rules and data integrity according to ISO/IEC 14496-2 (v2)

  Note: H.263 baseline is the same as MPEG-4 short video header video

• Video Buffering Verifier (VBV) test

  This test checks for bit rate and buffer occupancy violations according to Annex D of ISO/IEC 14496-2 (Only Video Rate Buffer Model is tested).

  Note: Since the bit stream delivery rate function, R(t), is typically not defined within MPEG-4 video itself, only constant bitrate R(t) and MPEG-2 style variable bitrate R(t) can be tested (See Annex C of ISO/IEC 13818-2). If the MPEG-4 video is carried over MPEG-2 TS/PS stream, then STD Buffer Model test is more appropriate since R(t) is defined at TS/PS level in this case.

H.264/AVC Video Conformance

• H.264/AVC video conformance test

  This test checks semantic rules and data integrity according to ITU-T H.264

• Hypothetical Reference Decoder (HRD) conformance test

  This test checks for bitstream HRD conformance according to Annex C of ITU-T H.264

SMPTE VC-1 Video Conformance

• SMPTE VC-1 conformance test

  This test checks semantic rules and data integrity according to SMPTE 421M

• Hypothetical Reference Decoder (HRD) conformance test

  This test checks for bitstream HRD conformance according to Annex C of SMPTE 421M

Audio Level Test

• Silence Detection
• Max Level Detection
• Digital Clipping Detection