T-REC-G.722.1-200011-S!AnnB!SOFT-ZST-S.zip_float_g.722.1 esp flo

============================================== ITU-T Recommendation G.722.1 Annex B (11/2000) Test Vectors ============================================== COPYRIGHT AND INTELLECTUAL PROPERTY =================================== ** (c) 2000 PictureTel Coporation ** Andover, MA, USA ** ** All rights reserved. ITU CONTACTS ============ For distribution of update software, please contact: Sales Department ITU Place des Nations CH-1211 Geneve 20 SUISSE email: sales@itu.int For reporting problems, please contact TSB helpdesk service at: TSB Helpdesk service ITU Place des Nations CH-1211 Geneve 20 SUISSE fax: +41 22 730 5853 email: tsbedh@itu.int Software Notes for ITU-T Recommendation G.722.1 Annex B Test Vectors ==================================================================== The test vectors in this directory consist of input and output signals (vectors) to the encoder and decoder. Each input vector provided has a corresponding output vector. Note: Floating point implementations on different platforms ] are difficult to match using a bit-exact criteria. These vectors are provided as a reference. Some other type of criteria such as segment SNR can be used to validate implementations. Warning: Successfully passing the test vectors does not guarantee full compliance with this recommendation. This is because the test vectors do not exercise every state and line of the code. The following table describes the purpose of each test vector file provided. Vector name Comments ----------- -------- g722_1_enc_in.pcm Input vector to encoder. g722_1_enc_out_24000.pak Bit stream output from the encoder in packed format at 24kbit/s, requires use of input g722_1_enc_in.pcm. g722_1_enc_out_32000.pak Bit stream output from the encoder in packed format at 32kbit/s, requires use of input g722_1_enc_in.pcm. g722_1_enc_out_24000.itu Bit stream output from the encoder in ITU-T G.192 format at 24kbit/s, requires use of input g722_1_enc_in.pcm. g722_1_enc_out_32000.itu Bit stream output from the encoder in ITU-T G.192 format at 32kbit/s, requires use of input g722_1_enc_in.pcm. g722_1_dec_out_24000.pcm Decoder output vector at 24kbit/s, requires use of input vector g722_1_enc_out_24000.pak (or g722_1_enc_out_24000.itu) g722_1_dec_out_32000.pcm Decoder output vector at 32kbit/s, requires use of input vector g722_1_enc_out_32000.pak (or g722_1_enc_out_32000.itu) g722_1_dec_in_24000_fe.itu Input vector to decoder at 24kbit/s uses ITU-T G.192 bit stream format, it includes erased frames to test frame erasure code. g722_1_dec_in_32000_fe.itu Input vector to decoder at 32kbit/s uses ITU-T G.192 bit stream format, it includes erased frames to test frame erasure code. g722_1_dec_out_24000_fe.pcm Decoder output vector at 24kbit/s, requires use of frame erasure input vector g722_1_dec_in_24000_fe.itu. g722_1_dec_out_32000_fe.pcm Decoder output vector at 32kbit/s, requires use of frame erasure input vector g722_1_dec_in_32000_fe.itu. Note. All test vector byte ordering is in a PC DOS format found on IBM compatible PCs. As an example, to test the encoder at 24000 bit/s you may type the following command line: encode 0 G722_1_enc_in.pcm output_file 24000 and compare the "output_file" against the vector "g722_1_enc_out_24000.pak". It should be indentical. Similarly, to test the decoder at 24000 bit/s you may type the following command line: decode 0 g722_1_enc_out_24000.pak output_file 24000 and compare the "output_file" against the vector "g722_1_dec_out_24000.pcm". It should be indentical. Background To Test Vector Design ================================ The test vectors are designed to exercise as much of the G.722.1 algorithm functionality as possible. The input test vector to the encoder (g722_1_test_vector.pcm) was optimized for 24kbit/s, and designed to access as many of the encoder/decoder table entries as possible (this algorithm essentially consists of table look up processes). The same vector may be used for 32kbit/s also - the only difference being in the bit rate entry, the table entries and code are otherwise identical at both 24 and 32kbit/s. The test vector g722_1_test_vector.pcm at 24 kbit/s provides the code coverage results shown in the following table. The coverage is shown as the table (variable) size and the number (and %) of elements in that table which are indexed by the input vector. Code Coverage of Variables at 24kbit/s -------------------------------------- Table Name Size Accessed ---------- ---- -------- Encoder: differential_region_power_bits 336 312 (92%) differential_region_power_codes 336 312 (92%) enc_vqm_while1 2 2 (100%) enc_vqm_while2 2 2 (100%) mlt_sqvh_bitcount_category_0 196 181 (92%) mlt_sqvh_code_category_0 196 181 (92%) mlt_sqvh_bitcount_category_1 100 94 (94%) mlt_sqvh_code_category_1 100 94 (94%) mlt_sqvh_bitcount_category_2 49 48 (97%) mlt_sqvh_code_category_2 49 48 (97%) mlt_sqvh_bitcount_category_3 625 520 (83%) mlt_sqvh_code_category_3 625 520 (83%) mlt_sqvh_bitcount_category_4 256 203 (79%) mlt_sqvh_code_category_4 256 203 (79%) mlt_sqvh_bitcount_category_5 243 192 (79%) mlt_sqvh_code_category_5 243 192 (79%) mlt_sqvh_bitcount_category_6 32 32 (100%) mlt_sqvh_code_category_6 32 32 (100%) Decoder: differential_region_power_decoder_tree 644 598 (92%) mlt_decoder_tree_category_0 360 360 (100%) mlt_decoder_tree_category_1 186 186 (100%) mlt_decoder_tree_category_2 94 94 (100%) mlt_decoder_tree_category_3 1038 1038 (100%) mlt_decoder_tree_category_4 416 410 (98%) mlt_decoder_tree_category_5 382 382 (100%) mlt_decoder_tree_category_6 62 62 (100%) The test vector g722_1_test_vector.pcm at 32 kbit/s provides the code coverage results shown in the following table. The coverage is shown as the table (variable) size and the number (and %) of elements in that table which are indexed by the input vector. Code Coverage of Variables at 32kbit/s -------------------------------------- Table Name