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android/a2dp: Add support to check MPEG-2,4 AAC caps

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This commit is contained in:
Andrzej Kaczmarek 2014-05-26 15:16:48 +02:00 committed by Luiz Augusto von Dentz
parent e1c7dddd0d
commit 171aac2ead
1 changed files with 72 additions and 0 deletions
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72
android/a2dp.c
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@ -325,6 +325,52 @@ static int sbc_check_config(void *caps, uint8_t caps_len, void *conf,
return 0;
}
static int aac_check_config(void *caps, uint8_t caps_len, void *conf,
uint8_t conf_len)
{
a2dp_aac_t *cap, *config;
if (conf_len != caps_len || conf_len != sizeof(a2dp_aac_t)) {
error("AAC: Invalid configuration size (%u)", conf_len);
return -EINVAL;
}
cap = caps;
config = conf;
if (!(cap->object_type & config->object_type)) {
error("AAC: Unsupported object type (%u) by endpoint",
config->object_type);
return -EINVAL;
}
if (!(AAC_GET_FREQUENCY(*cap) & AAC_GET_FREQUENCY(*config))) {
error("AAC: Unsupported frequency (%u) by endpoint",
AAC_GET_FREQUENCY(*config));
return -EINVAL;
}
if (!(cap->channels & config->channels)) {
error("AAC: Unsupported channels (%u) by endpoint",
config->channels);
return -EINVAL;
}
/* VBR support in SNK is mandatory but let's make sure we don't try to
* have VBR on remote which for some reason does not support it
*/
if (!cap->vbr && config->vbr) {
error("AAC: Unsupported VBR (%u) by endpoint",
config->vbr);
return -EINVAL;
}
if (AAC_GET_BITRATE(*cap) < AAC_GET_BITRATE(*config))
return -ERANGE;
return 0;
}
static int check_capabilities(struct a2dp_preset *preset,
struct avdtp_media_codec_capability *codec,
uint8_t codec_len)
@ -334,6 +380,9 @@ static int check_capabilities(struct a2dp_preset *preset,
case A2DP_CODEC_SBC:
return sbc_check_config(codec->data, codec_len, preset->data,
preset->len);
case A2DP_CODEC_MPEG24:
return aac_check_config(codec->data, codec_len, preset->data,
preset->len);
default:
return -EINVAL;
}
@ -358,6 +407,26 @@ static struct a2dp_preset *sbc_select_range(void *caps, uint8_t caps_len,
return p;
}
static struct a2dp_preset *aac_select_range(void *caps, uint8_t caps_len,
void *conf, uint8_t conf_len)
{
struct a2dp_preset *p;
a2dp_aac_t *cap, *config;
uint32_t bitrate;
cap = caps;
config = conf;
bitrate = MIN(AAC_GET_BITRATE(*cap), AAC_GET_BITRATE(*config));
AAC_SET_BITRATE(*config, bitrate);
p = g_new0(struct a2dp_preset, 1);
p->len = conf_len;
p->data = g_memdup(conf, p->len);
return p;
}
static struct a2dp_preset *select_preset_range(struct a2dp_preset *preset,
struct avdtp_media_codec_capability *codec,
uint8_t codec_len)
@ -367,6 +436,9 @@ static struct a2dp_preset *select_preset_range(struct a2dp_preset *preset,
case A2DP_CODEC_SBC:
return sbc_select_range(codec->data, codec_len, preset->data,
preset->len);
case A2DP_CODEC_MPEG24:
return aac_select_range(codec->data, codec_len, preset->data,
preset->len);
default:
return NULL;
}