1、 Reference numberISO/IEC 14496-4:2004/Amd.13:2007(E)ISO/IEC 2007Information technology Coding of audio-visual objects Part 4: Conformance testing AMENDMENT 13: Parametric coding for high quality audio conformance Technologies de linformation Codage des objets audiovisuels Partie 4: Essai de conformi
2、t AMENDEMENT 13: Codage paramtrique pour la conformit audio de haute qualit Amendment 13:2007 toNational Standard of CanadaCAN/CSA-ISO/IEC 14496-4:06Amendment 13:2007 to International Standard ISO/IEC 14496-4:2004 has been adopted withoutmodification (IDT) as Amendment 13:2007 to CAN/CSA-ISO/IEC 144
3、96-4:06. This Amendment wasreviewed by the CSA Technical Committee on Information Technology (TCIT) under the jurisdiction of theStrategic Steering Committee on Information Technology and deemed acceptable for use in Canada.August 2007 International Organization for Standardization (ISO), 2007. All
4、rights reserved. International Electrotechnical Commission (IEC), 2007. All rights reserved. NOT FOR RESALE. ISO/IEC 14496-4:2004/Amd.13:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not b
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7、er bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic o
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9、www.iso.orgii ISO/IEC 2007 All rights reservedAmendment 13:2007 toCAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.13:2007(E) ISO/IEC 2007 All rights reserved iiiForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the speci
10、alized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical co
11、mmittees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Internati
12、onal Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.
13、Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or al
14、l such patent rights. Amendment 13 to ISO/IEC 14496-4:2004 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. Amendment 13:2007 toCAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.13:2
15、007(E) ISO/IEC 2007 All rights reserved 1Information technology Coding of audio-visual objects Part 4: Conformance testing AMENDMENT 13: Parametric coding for high quality audio conformance In subclause 6.5.1 File name conventions, insert the following row into Table 29 after the row for PS (+SBR +A
16、AC LC): Table 29 File name conventions SSC ssc_sig ssc_sig_ In subclause 6.6.4.1.2.2.4 ics_info(), replace: Test bitstreams al03 and as17 are provided respectively for Main and Low-Complexity profiles to test decoder performance on non-meaningful transitions (see subclause 6.6.4.1.2.2.1). with: Test
17、 sequences al03 and as17 are provided respectively for Low Complexity and Scalable Sampling Rate profiles to test decoder performance on non-meaningful transitions (see subclause 6.6.4.1.2.2.1). In subclause 6.6.4.1.2.2.4 ics_info(), replace: predictor_data_present: shall be encoded with the value 0
18、 for the audioObjectTypes 2 (AAC LC), 3 (AAC SSR) and 17 (ER AAC LC); no restrictions apply otherwise. with: predictor_data_present: shall be encoded with the value 0 for the audioObjectTypes 2 (AAC LC), 3 (AAC SSR) and 17 (ER AAC LC); shall be encoded with the value 0 when used in the Low Delay AAC
19、 profile; no restrictions apply otherwise. In subclause 6.6.4.1.2.2.15 (individual_channel_stream(), replace: pulse_data_present: shall be encoded with a value of 0 for AAC scalable or if window_sequence is EIGHT_SHORT_SEQUENCE. with: pulse_data_present: shall be encoded with a value of 0 for the au
20、dioObjectTypes 6 (AAC scalable) and 20 (ER AAC scalable); shall be encoded with a value of 0 when used in the Low Delay AAC profile; shall be encoded with a value of 0 if window_sequence is EIGHT_SHORT_SEQUENCE; no restrictions apply otherwise. Amendment 13:2007 toCAN/CSA-ISO/IEC 14496-4:06ISO/IEC 1
21、4496-4:2004/Amd.13:2007(E) 2 ISO/IEC 2007 All rights reservedIn subclause 6.6.4.2.3 (Test sequences), Table 30 (AAC test sequences) correct the arithmetic torture table entry for as13, samplingFrequencyIndex “0,1“ from “yes“ to “no“. In subclause 6.6.4.2.3 (Test sequences), add to table 41 (AAC Test
22、 sequences): er_ad100np sine sweep 64 23 * 1 0,1 0 - 0 0 0 - - - y n n n n RMS er_ad103np test mix 64 23 * 1 0,1 0 - 0 1 0 - - - ? ? n n fs2 none er_ad107np test mix 64 23 * 1 0,1 0 - 0 1 1 - - - ? ? n n fs1 none er_ad110np sine sweep 64 23 * 1 0,1 1 - 0 0 0 - - - y n n n n RMS er_ad111np test mix 6
23、4 23 * 1 0,1 1 - 0 0 0 - - - ? ? n n fs1 none er_ad115np test mix 64 23 * 1 0,1 1 - 0 0 1 - - - ? ? n n fs2 none er_ad202np test mix 128 23 * 2 0,1 0 - 1 0 0 y y - ? ? n n fs2 none er_ad206np test mix 128 23 * 2 0,1 0 - 1 0 1 y y - ? ? n n fs1 none er_ad214np test mix 128 23 * 2 0,1 1 - 1 1 0 y y -
24、? ? n n fs2 none er_ad218np test mix 128 23 * 2 0,1 1 - 1 1 1 y y - ? ? n n fs1 none In subclause 6.6.6.1.2.2.2 (bsac_header(), replace the sentence: header_length: (header_length+8)*8) must be smaller than or equal to (frame_length*8) with: header_length: (header_length+7)*8) must be smaller than o
25、r equal to (frame_length*8) In subclause 6.6.6.2.3, replace Table 52 with: Table 52 ER BSAC Object Type Test Compressed data for Mobile Audio Internetworking Profile Level 1-3 and Natural Audio Profile Level 1-2 Filebase nameContentBaseLayer Bitrate (kbit/s)Top Bitrate (kbit/s)Top Layer (n) Number o
26、fESESBitrate (kbit/s)Number ofchannelIntensity MS TNS PNS epConfig SBA HighestLayer TestProcedure er_bs01_ep0 sine sweep 16 40/64 24/48 1 40/64 1 0 24/48 RMS er_bs01_ep1 sine sweep 16 40/64 24/48 6 BL1,BL2,6/12, 6/12, 6/12, 6/12 1 1 24/48 RMS Amendment 13:2007 toCAN/CSA-ISO/IEC 14496-4:06ISO/IEC 144
27、96-4:2004/Amd.13:2007(E) ISO/IEC 2007 All rights reserved 3er_bs02_ep0 music 16 40/64 24/48 25/49 BL,1,1, ., 1, 1 1 0 0, 1, 2, . , 24/48 er_bs02_ep1 music 16 40/64 24/48 6 BL1,BL2,6/12, 6/12, 6/12, 6/12 1 1 0, 1, 2, . , 24/48 er_bs03_ep0 music 32 80/128 24/48 2 BL,24/48 2 0 0, 24/48 er_bs03_ep1 musi
28、c 32 80/128 24/48 6 BL1,BL2, 12/24,12/24,12/24,12/24 2 1 0, 24/48 er_bs04_ep0 music 32 80/128 24/48 4 BL,24 (48), 12(24), 12(24)2 Yes Yes 0 0, 12/24, 18/36, 24/48 er_bs04_ep1 music 32 80/128 24/48 6 BL1,BL2, 12/24,12/24,12/24,12/24 2 Yes Yes 1 0, 12/24, 18/36, 24/48 er_bs05_ep0 music 32 80/128 24/48
29、 5 BL,12/24, 12/24,12/24,12/24 2 Yes Yes Yes 0 0, 6/12, 12/24, 18/36, 24/48 er_bs05_ep1 music 32 80/128 24/48 6 BL1,BL2, 12/24,12/24,12/24,12/24 2 Yes Yes Yes 1 0, 6/12, 12/24, 18/36, 24/48 er_bs06_ep0 music 32 80/128 24/48 3 BL, 24/48, 24/48 2 Yes Yes Yes 0 Yes 0, 12/24, 24/48 er_bs06_ep1 music 32
30、80/128 24/48 6 BL1,BL2,12/24,12/24,12/24,12/24 2 Yes Yes Yes 1 Yes 0, 6/12, 12/24, 18/36, 24/48 Amendment 13:2007 toCAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.13:2007(E) 4 ISO/IEC 2007 All rights reserveder_bs07_ep0 noise 16 40/64 24/48 1 40/64 1 Yes 0 24/48 PNS-1er_bs07_ep1 noise 16 40/64 2
31、4/48 6 BL1, BL2, 6/12, 6/12, 6/12, 6/12 1 Yes 1 24/48 PNS-1er_bs08_ep0 noise 16 40/64 24/48 1 40/64 1 Yes 0 24/48 PNS-2/3 er_bs08_ep1 noise 16 40/64 24/48 6 BL1, BL2, 6/12, 6/12, 6/12, 6/12 1 Yes 1 24/48 PNS-2/3 After subclause 6.6.18 Parametric Stereo Conformance, add the following subclauses: 6.6.
32、19 SSC (SinuSoidal Coding) 6.6.19.1 Compressed data 6.6.19.1.1 Characteristics Conformant SSC compressed MPEG-4 data shall have the SSC data stored as outlined in ISO/IEC 14496-3 subpart 8 “Technical description of Parametric coding for high quality audio“. 6.6.19.1.2 Test procedure Each compressed
33、data shall meet the syntactic and semantic requirements specified in ISO/IEC 14496-3. The decoded data shall also meet the requirements defined in ISO/IEC 14496-3. If a syntactic element is not listed below, no restrictions apply to that element. The reserved element shall be encoded with the value
34、zero. 6.6.19.1.2.1 Compressed MPEG-4 data payload AudioSpecificConfig audioObjectType: Shall be encoded with the value 28. samplingFrequencyIndex: Shall be encoded with the value 4. channelConfiguration: Shall be encoded with a value in the range of 1 2. SSCSpecificConfig decoder_level: Shall be enc
35、oded with the value 1. The values 0, 2, 3 are reserved. Amendment 13:2007 toCAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.13:2007(E) ISO/IEC 2007 All rights reserved 5update_rate: Shall be encoded with the value 4. The values in the ranges 0 3 and 5 7 are reserved. synthesis_method: Shall be en
36、coded with the value 0. The values 1, 2, 3 are reserved. mode_ext: Shall be encoded with the value 0 or 1. The values 2, 3 are reserved. ssc_audio_frame_header s_nrof_continuations: Shall be encoded with a value not exceeding max_nrof_sinusoidsdecoder_level. s_nrof_den: Shall be encoded with a value
37、 not exceeding max_nrof_dendecoder_level. subframe_transients(sf,ch) t_locsfch: Shall be encoded with a value in the range of 0 SUpdate_rate-1. t_typesfch: Shall be encoded with a value in the range of 0 1. The values 2, 3 are reserved. t_b_parsfch: Shall be encoded with a value in the range of 0 3.
38、 The values in the range of 4 7 are reserved. t_chi_parsfch: Shall be encoded with a value in the range of 0 3. The values in the range of 4 7 are reserved. t_freqsfchI: Shall be encoded with a value in the range of 0 485. The values in the range of 486 511 are reserved. subframe_sinusoids(sf,ch) bs
39、_codeword: Shall be encoded with the values listed in the corresponding Huffman tables, defined in ISO/IEC 14496-3, Tables 8.B.1 till 8.B.11, 8.B.15 and 8.B.16. s_nrof_birthssfch: Shall be encoded with a value not exceeding max_nrof_sinusoidsdecoder_level - s_nrof_confinuationssfch. subframe_noise(s
40、f,ch) n_laguerrech: Shall be encoded with a value in the range of 0 2. The value 3 is reserved. bs_codeword: Shall be encoded with the values listed in the corresponding Huffman tables, defined in ISO/IEC 14496-3, Tables 8.B.12 till 8.B.14. ps_data() iid_mode: Shall be encoded with a value in the ra
41、nge of 0 5. The values 6, 7 are reserved. icc_mode: Shall be encoded with a value in the range of 0 5. The values 6, 7 are reserved. Amendment 13:2007 toCAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.13:2007(E) 6 ISO/IEC 2007 All rights reservedborder_positione: Shall be encoded with a value in
42、the range of (border_positione-1+1) (numQMFSlots-1) if e0 or a value in the range of 0 (numQMFSlots-1) if e=0. iid_dt: Shall be encoded with the value 0 if iid_mode of the current envelope is different from iid_mode of the previous envelope. icc_dt: Shall be encoded with the value 0 if icc_mode of t
43、he current envelope is different from icc_mode of the previous envelope. ps_extension_id: Shall be encoded with the value of 0. The values 1, 2 and 3 are reserved. ps_extension() ipd_dt: Shall be encoded with the value 0 if iid_mode of the current envelope is different from iid_mode of the previous
44、envelope. opd_dt: Shall be encoded with the value 0 if iid_mode of the current envelope is different from iid_mode of the previous envelope. reserved_ps: Shall be encoded with the value of 0. The value 1 is reserved. iid_data() bs_codeword: Shall be encoded with the values listed in the correspondin
45、g Huffman table, defined in ISO/IEC 14496-3, Table 8.B.17 or Table 8.B.18. Conformant compressed MPEG-4 data shall have coded iid_pareb IID indices that are in the range -7 7 if iid_quant=0 or in the range -15 15 if iid_quant=1. icc_data() bs_codeword: Shall be encoded with the values listed in the
46、corresponding Huffman table, defined in ISO/IEC 14496-3, Table 8.B.19. Conformant compressed MPEG-4 data shall have coded icc_pareb ICC indices that are in the range 0 7. ipd_data() bs_codeword: Shall be encoded with the values listed in the corresponding Huffman table, defined in ISO/IEC 14496-3, T
47、able 8.B.20. opd_data() bs_codeword: Shall be encoded with the values listed in the corresponding Huffman table, defined in ISO/IEC 14496-3, Table 8.B.21. Amendment 13:2007 toCAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.13:2007(E) ISO/IEC 2007 All rights reserved 76.6.19.2 Decoders 6.6.19.2.1
48、Characteristics The object type SSC has the Object Type ID 28, and the compressed MPEG-4 data syntax is defined in ISO/IEC 14496-3. The Audio Object Type SSC contains the SSC and PS tools. 6.6.19.2.2 SSC profile A conformant SSC profile decoder of Level 2 or higher, shall support the baseline versio
49、n of the PS tool, as outlined in ISO/IEC 14496-3. A conformant SSC profile decoder of Level 3 or higher, shall support IPD/OPD synthesis and 34 frequency bands resolution, as outlined in ISO/IEC 14496-3. A conformant SSC Profile decoder of a certain level shall always be able to operate the SSC tool for streams containing Parametric Stereo data. For streams not containing Parametric Stereo data,
