Lines Matching refs:varname
63 \varname{[vorbis_version]} is to read '0' in order to be compatible
64 with this document. Both \varname{[audio_channels]} and
65 \varname{[audio_sample_rate]} must read greater than zero. Allowed final
67 Vorbis I. \varname{[blocksize_0]} must be less than or equal to
68 \varname{[blocksize_1]}. The framing bit must be nonzero. Failure to
111 \item \varname{[vorbis_codebook_count]} = read eight bits as unsigned integer and add one
112 \item Decode \varname{[vorbis_codebook_count]} codebooks in order as defined
115 codebook configurations \varname{[vorbis_codebook_configurations]}.
127 \item \varname{[vorbis_time_count]} = read 6 bits as unsigned integer and add one
128 \item read \varname{[vorbis_time_count]} 16 bit values; each value should be zero. If any value is…
139 \item \varname{[vorbis_floor_count]} = read 6 bits as unsigned integer and add one
140 \item For each \varname{[i]} of \varname{[vorbis_floor_count]} floor numbers:
142 \item read the floor type: vector \varname{[vorbis_floor_types]} element \varname{[i]} =
147 configuration in slot \varname{[i]} of the floor configuration array \varname{[vorbis_floor_configu…
149 …s:spec:floor1}; save this configuration in slot \varname{[i]} of the floor configuration array \va…
163 \item \varname{[vorbis_residue_count]} = read 6 bits as unsigned integer and add one
165 \item For each of \varname{[vorbis_residue_count]} residue numbers:
167 …\item read the residue type; vector \varname{[vorbis_residue_types]} element \varname{[i]} = read …
169 …spec:residue}; save this configuration in slot \varname{[i]} of the residue configuration array \v…
188 \item \varname{[vorbis_mapping_count]} = read 6 bits as unsigned integer and add one
189 \item For each \varname{[i]} of \varname{[vorbis_mapping_count]} mapping numbers:
197 … \item if set, \varname{[vorbis_mapping_submaps]} = read 4 bits as unsigned integer and add one
198 \item if unset, \varname{[vorbis_mapping_submaps]} = 1
206 … \item \varname{[vorbis_mapping_coupling_steps]} = read 8 bits as unsigned integer and add one
207 \item for \varname{[j]} each of \varname{[vorbis_mapping_coupling_steps]} steps:
209 …\item vector \varname{[vorbis_mapping_magnitude]} element \varname{[j]}= read \link{vorbis:spec:il…
210 …\item vector \varname{[vorbis_mapping_angle]} element \varname{[j]}= read \link{vorbis:spec:ilog}{…
211 …nitude channel number is greater than \varname{[audio_channels]}-1, or the angle channel is greate…
218 \item if unset, \varname{[vorbis_mapping_coupling_steps]} = 0
223 …\item if \varname{[vorbis_mapping_submaps]} is greater than one, we read channel multiplex setting…
225 …\item vector \varname{[vorbis_mapping_mux]} element \varname{[j]} = read 4 bits as unsigned integer
226 …\item if the value is greater than the highest numbered submap (\varname{[vorbis_mapping_submaps]}…
229 …\item for each submap \varname{[j]} of \varname{[vorbis_mapping_submaps]} submaps, read the floor …
232 …ed integer for the floor number; save in vector \varname{[vorbis_mapping_submap_floor]} element \v…
234 …integer for the residue number; save in vector \varname{[vorbis_mapping_submap_residue]} element \…
238 …\item save this mapping configuration in slot \varname{[i]} of the mapping configuration array \va…
250 \item \varname{[vorbis_mode_count]} = read 6 bits as unsigned integer and add one
251 \item For each of \varname{[vorbis_mode_count]} mode numbers:
253 \item \varname{[vorbis_mode_blockflag]} = read 1 bit
254 \item \varname{[vorbis_mode_windowtype]} = read 16 bits as unsigned integer
255 \item \varname{[vorbis_mode_transformtype]} = read 16 bits as unsigned integer
256 \item \varname{[vorbis_mode_mapping]} = read 8 bits as unsigned integer
258 \varname{[vorbis_mode_windowtype]}
259 and \varname{[vorbis_mode_transformtype]}. \varname{[vorbis_mode_mapping]} must not be greater tha…
260 \item save this mode configuration in slot \varname{[i]} of the mode configuration array
261 \varname{[vorbis_mode_configurations]}.
289 \item read 1 bit \varname{[packet_type]}; check that packet type is 0 (audio)
291 \varname{[mode_number]}
292 \item decode blocksize \varname{[n]} is equal to \varname{[blocksize_0]} if
293 \varname{[vorbis_mode_blockflag]} is 0, else \varname{[n]} is equal to \varname{[blocksize_1]}.
296 \item if this is a long window (the \varname{[vorbis_mode_blockflag]} flag of this mode is
299 \item read 1 bit for \varname{[previous_window_flag]}
300 \item read 1 bit for \varname{[next_window_flag]}
301 \item if \varname{[previous_window_flag]} is not set, the left half
307 \item if \varname{[next_window_flag]} is not set, the right half of
327 \item \varname{[window_center]} = \varname{[n]} / 2
328 \item if (\varname{[vorbis_mode_blockflag]} is set and \varname{[previous_window_flag]} is
331 \item \varname{[left_window_start]} = \varname{[n]}/4 -
332 \varname{[blocksize_0]}/4
333 \item \varname{[left_window_end]} = \varname{[n]}/4 + \varname{[blocksize_0]}/4
334 \item \varname{[left_n]} = \varname{[blocksize_0]}/2
338 \item \varname{[left_window_start]} = 0
339 \item \varname{[left_window_end]} = \varname{[window_center]}
340 \item \varname{[left_n]} = \varname{[n]}/2
343 \item if (\varname{[vorbis_mode_blockflag]} is set and \varname{[next_window_flag]} is not
346 \item \varname{[right_window_start]} = \varname{[n]*3}/4 -
347 \varname{[blocksize_0]}/4
348 \item \varname{[right_window_end]} = \varname{[n]*3}/4 +
349 \varname{[blocksize_0]}/4
350 \item \varname{[right_n]} = \varname{[blocksize_0]}/2
354 \item \varname{[right_window_start]} = \varname{[window_center]}
355 \item \varname{[right_window_end]} = \varname{[n]}
356 \item \varname{[right_n]} = \varname{[n]}/2
359 \item window from range 0 ... \varname{[left_window_start]}-1 inclusive is zero
360 \item for \varname{[i]} in range \varname{[left_window_start]} ...
361 \varname{[left_window_end]}-1, window(\varname{[i]}) = $\sin(\frac{\pi}{2} * \sin^2($ (\varname{[i]…
362 \item window from range \varname{[left_window_end]} ... \varname{[right_window_start]}-1
363 …varname{[i]} in range \varname{[right_window_start]} ... \varname{[right_window_end]}-1, window(\v…
364 \item window from range \varname{[right_window_start]} ... \varname{[n]}-1 is
378 \varname{[mode_number]} from configuration array
379 \varname{[vorbis_mode_configurations]} and the map number
380 \varname{[vorbis_mode_mapping]} (specified by the current mode) taken
382 \varname{[vorbis_mapping_configurations]}.
386 For each floor \varname{[i]} of \varname{[audio_channels]}
388 \item \varname{[submap_number]} = element \varname{[i]} of vector [vorbis_mapping_mux]
389 \item \varname{[floor_number]} = element \varname{[submap_number]} of vector
392 floor (vector \varname{[vorbis_floor_types]} element
393 \varname{[floor_number]}) is zero then decode the floor for
394 channel \varname{[i]} according to the
397 is one then decode the floor for channel \varname{[i]} according
400 \item if the decoded floor returned 'unused', set vector \varname{[no_residue]} element
401 \varname{[i]} to true, else set vector \varname{[no_residue]} element \varname{[i]} to
421 for each \varname{[i]} from 0 ... \varname{[vorbis_mapping_coupling_steps]}-1
424 \item if either \varname{[no_residue]} entry for channel
425 (\varname{[vorbis_mapping_magnitude]} element \varname{[i]})
427 (\varname{[vorbis_mapping_angle]} element \varname{[i]})
441 for each submap \varname{[i]} in order from 0 ... \varname{[vorbis_mapping_submaps]}-1
444 \item \varname{[ch]} = 0
445 \item for each channel \varname{[j]} in order from 0 ... \varname{[audio_channels]} - 1
447 …item if channel \varname{[j]} in submap \varname{[i]} (vector \varname{[vorbis_mapping_mux]} eleme…
449 \item if vector \varname{[no_residue]} element \varname{[j]} is true
451 \item vector \varname{[do_not_decode_flag]} element \varname{[ch]} is set
455 \item vector \varname{[do_not_decode_flag]} element \varname{[ch]} is unset
458 \item increment \varname{[ch]}
462 …\item \varname{[residue_number]} = vector \varname{[vorbis_mapping_submap_residue]} element \varna…
463 …\item \varname{[residue_type]} = vector \varname{[vorbis_residue_types]} element \varname{[residue…
464 …varname{[ch]} vectors using residue \varname{[residue_number]}, according to type \varname{[residu…
465 \item \varname{[ch]} = 0
466 \item for each channel \varname{[j]} in order from 0 ... \varname{[audio_channels]}
468 …tem if channel \varname{[j]} is in submap \varname{[i]} (vector \varname{[vorbis_mapping_mux]} ele…
470 \item residue vector for channel \varname{[j]} is set to decoded residue vector \varname{[ch]}
471 \item increment \varname{[ch]}
482 for each \varname{[i]} from \varname{[vorbis_mapping_coupling_steps]}-1 descending to 0
485 \item \varname{[magnitude_vector]} = the residue vector for channel
486 (vector \varname{[vorbis_mapping_magnitude]} element \varname{[i]})
487 \item \varname{[angle_vector]} = the residue vector for channel (vector
488 \varname{[vorbis_mapping_angle]} element \varname{[i]})
489 …ch scalar value \varname{[M]} in vector \varname{[magnitude_vector]} and the corresponding scalar …
491 \item if (\varname{[M]} is greater than zero)
493 \item if (\varname{[A]} is greater than zero)
495 \item \varname{[new_M]} = \varname{[M]}
496 \item \varname{[new_A]} = \varname{[M]}-\varname{[A]}
500 \item \varname{[new_A]} = \varname{[M]}
501 \item \varname{[new_M]} = \varname{[M]}+\varname{[A]}
507 \item if (\varname{[A]} is greater than zero)
509 \item \varname{[new_M]} = \varname{[M]}
510 \item \varname{[new_A]} = \varname{[M]}+\varname{[A]}
514 \item \varname{[new_A]} = \varname{[M]}
515 \item \varname{[new_M]} = \varname{[M]}-\varname{[A]}
520 \item set scalar value \varname{[M]} in vector \varname{[magnitude_vector]} to \varname{[new_M]}
521 \item set scalar value \varname{[A]} in vector \varname{[angle_vector]} to \varname{[new_A]}
533 length for floor computation is \varname{[n]}/2.
538 vectors are the length \varname{[n]}/2 audio spectrum for each