/*
* sip_config_local_supported_codecs_get()
*
* Get the locally supported codec list.
*/
uint16_t
sip_config_video_supported_codecs_get (rtp_ptype aSupportedCodecs[],
uint16_t supportedCodecsLen, boolean isOffer)
{
uint16_t count = 0;
rtp_ptype pref_codec;
int codec_mask;
int hw_codec_mask = vcmGetVideoCodecList(VCM_DSP_FULLDUPLEX_HW);
int gmp_codec_mask = vcmGetVideoCodecList(VCM_DSP_FULLDUPLEX_GMP);
if ( isOffer ) {
codec_mask = vcmGetVideoCodecList(VCM_DSP_FULLDUPLEX);
} else {
/* we are trying to match the answer then we
already have the rx stream open */
//codec_mask = vcmGetVideoCodecList(DSP_ENCODEONLY);
codec_mask = vcmGetVideoCodecList(VCM_DSP_IGNORE);
}
// prefer HW codecs over SW
count = sip_config_video_add_codecs(aSupportedCodecs,
supportedCodecsLen, hw_codec_mask);
// Now add any codecs that weren't in the initial list
codec_mask &= ~hw_codec_mask;
count += sip_config_video_add_codecs(&aSupportedCodecs[count],
supportedCodecsLen, codec_mask);
// Now add any GMP codecs that aren't already in
gmp_codec_mask &= ~(hw_codec_mask | codec_mask);
count += sip_config_video_add_codecs(&aSupportedCodecs[count],
supportedCodecsLen, gmp_codec_mask);
// Now promote the preferred codec if any
pref_codec = sip_config_preferred_codec();
if (pref_codec != RTP_NONE) {
int i,j;
for (i = 1; i < count; i++) {
if (aSupportedCodecs[i] == pref_codec) {
// bump it to the front; bump all the rest down
for (j = i; j > 0; j--) {
aSupportedCodecs[j] = aSupportedCodecs[j-1];
}
aSupportedCodecs[0] = pref_codec;
return count;
}
}
// preferred not found, oh well
}
return count;
}
/**
* sip_config_local_supported_codecs_get()
* Get the locally supported codec list. The returned list
* of codecs will be in the ordered of preference. If there is
* preferred condec configured and it is available, the
* preferred codec will be put on the first entry of the
* returned list.
*
* @param[in,out] aSupportedCodecs - pointer to arrary fo the
* rtp_ptype to store the result of
* currenlty available codecs.
* @param[in] supportedCodecsLen - indicates the number of entry
* of the aSupportedCodecs.
*
* @return number of current codecs available.
*
* @pre (aSupportedCodecs != NULL)
* @pre (supportedCodecsLen != 0)
*/
uint16_t
sip_config_local_supported_codecs_get (rtp_ptype aSupportedCodecs[],
uint16_t supportedCodecsLen)
{
rtp_ptype current_codec_table[MAX_CODEC_ENTRIES+1];
rtp_ptype *codec;
rtp_ptype pref_codec;
uint16_t count = 0;
int codec_mask;
boolean preferred_codec_available = FALSE;
codec_mask = vcmGetAudioCodecList(VCM_DSP_FULLDUPLEX);
if (!codec_mask) {
codec_mask = VCM_CODEC_RESOURCE_G711 | VCM_CODEC_RESOURCE_OPUS;
}
/*
* convert the current available codec into the enumerated
* preferred list.
*/
current_codec_table[0] = RTP_NONE;
current_codec_table[MAX_CODEC_ENTRIES] = RTP_NONE;
config_set_current_codec_table(codec_mask, ¤t_codec_table[0]);
/*
* Get the configured preferred codec. If one is configured,
* check it to see if currently it can be supported by the
* platform. If it is configured and is availble to support,
* put the preferred codec in the first one of the list.
*/
pref_codec = sip_config_preferred_codec();
if (pref_codec != RTP_NONE) {
/*
* There is a configured preferred codec, check to see if
* the codec is currently avaible or not.
*/
codec = ¤t_codec_table[0];
while (*codec != RTP_NONE) {
if (pref_codec == *codec) {
preferred_codec_available = TRUE;
break;
}
codec++;
}
}
if (preferred_codec_available) {
/*
* The preferred codec is configured and the platform
* currently can support the preferred codec, put it in
* the first entry.
*/
aSupportedCodecs[count] = pref_codec;
count++;
} else {
/*
* Must init or comparison will be made to uninitialized memory.
* Do not increment count here since we are not adding RTP_NONE
* as a supported codec. We are only initializing memory to a
* known value.
*/
aSupportedCodecs[count] = RTP_NONE;
}
codec = ¤t_codec_table[0];
while (*codec != RTP_NONE) {
if (count < supportedCodecsLen) {
if (*codec != aSupportedCodecs[0]) {
aSupportedCodecs[count] = *codec;
count++;
}
}
codec++;
}
return count;
}
