FreeCalypso > hg > fc-tourmaline
view cdg-hybrid/sap/mmss.pdf @ 275:79cfefc1e2b4
audio mode load: gracefully handle mode files of wrong AEC version
Unfortunately our change of enabling L1_NEW_AEC (which is necessary
in order to bring our Calypso ARM fw into match with the underlying
DSP reality) brings along a change in the audio mode file binary
format and file size - all those new tunable AEC parameters do need
to be stored somewhere, after all. But we already have existing
mode files in the old format, and setting AEC config to garbage when
loading old audio modes (which is what would happen without the
present change) is not an appealing proposition.
The solution implemented in the present change is as follows: the
audio mode loading code checks the file size, and if it differs
from the active version of T_AUDIO_MODE, the T_AUDIO_AEC_CFG structure
is cleared - set to the default (disabled AEC) for the compiled type
of AEC. We got lucky in that this varying T_AUDIO_AEC_CFG structure
sits at the end of T_AUDIO_MODE!
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 30 Jul 2021 02:55:48 +0000 |
parents | 35f7a1dc9f7d |
children |
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;******************************************************************************** ;*** File : mmss.pdf ;*** Creation : Wed Mar 11 09:58:23 CST 2009 ;*** XSLT Processor : Apache Software Foundation / http://xml.apache.org/xalan-j / supports XSLT-Ver: 1 ;*** Copyright : (c) Texas Instruments AG, Berlin Germany 2002 ;******************************************************************************** ;*** Document Type : Service Access Point Specification ;*** Document Name : mmss ;*** Document No. : 6147.105.97.102 ;*** Document Date : 2002-07-19 ;*** Document Status: BEING_PROCESSED ;*** Document Author: HM ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:47:24 2007" PRAGMA LAST_MODIFIED "2002-07-19" PRAGMA ID_AND_VERSION "6147.105.97.102" CONST MAX_SDU_LEN 1 ; maximum service data unit length VALTAB VAL_ti VAL 0 - 6 "ms originated transaction" VAL 8 - 14 "ms originated transaction" VAL 7 TI_RES_MO "reserved" VAL 15 TI_RES_MT "reserved" VAR cause "MM cause" S VAR l_buf "length in bits" S VAR o_buf "offset in bits" S VAR buf "bit buffer" B VAR ti "transaction identifier" B VAL @p_mmss - VAL_ti@ VAR d1 "dummy, not used" B VAR d2 "dummy, not used" B COMP sdu "Service Data Unit" { l_buf ; length in bits o_buf ; offset in bits buf [MAX_SDU_LEN] ; bit buffer } ; MMSS_ESTABLISH_REQ 0x80000008 ; MMSS_RELEASE_REQ 0x80010008 ; MMSS_DATA_REQ 0x80020008 ; MMSS_DATA_IND 0x80004008 ; MMSS_ERROR_IND 0x80014008 ; MMSS_ESTABLISH_CNF 0x80024008 ; MMSS_ESTABLISH_IND 0x80034008 ; MMSS_RELEASE_IND 0x80044008 PRIM MMSS_ESTABLISH_REQ 0x80000008 { ti ; transaction identifier } PRIM MMSS_RELEASE_REQ 0x80010008 { ti ; transaction identifier } PRIM MMSS_DATA_REQ 0x80020008 { d1 ; dummy d2 ; dummy sdu ; service data unit } PRIM MMSS_DATA_IND 0x80004008 { d1 ; dummy d2 ; dummy sdu ; service data unit } PRIM MMSS_ERROR_IND 0x80014008 { ti ; transaction identifier cause ; error cause } PRIM MMSS_ESTABLISH_CNF 0x80024008 { ti ; transaction identifier } PRIM MMSS_ESTABLISH_IND 0x80034008 { d1 ; dummy d2 ; dummy sdu ; service data unit } PRIM MMSS_RELEASE_IND 0x80044008 { ti ; transaction identifier cause ; release cause }