diff options
Diffstat (limited to 'lib/igt_chamelium.c')
| -rw-r--r-- | lib/igt_chamelium.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/lib/igt_chamelium.c b/lib/igt_chamelium.c index 7c9030d1..6ac7b722 100644 --- a/lib/igt_chamelium.c +++ b/lib/igt_chamelium.c @@ -931,6 +931,40 @@ int chamelium_get_captured_frame_count(struct chamelium *chamelium) } /** + * chamelium_get_audio_channel_mapping: + * @chamelium: the Chamelium instance + * @port: the audio port + * @mapping: will be filled with the channel mapping + * + * Obtains the channel mapping for an audio port. + * + * Audio channels are not guaranteed not to be swapped. Users can use the + * channel mapping to match an input channel to a capture channel. + * + * The mapping contains one element per capture channel. Each element indicates + * which input channel the capture channel is mapped to. As a special case, -1 + * means that the channel isn't mapped. + */ +void chamelium_get_audio_channel_mapping(struct chamelium *chamelium, + struct chamelium_port *port, + int mapping[static 8]) +{ + xmlrpc_value *res, *res_channel; + int res_len, i; + + res = chamelium_rpc(chamelium, port, "GetAudioChannelMapping", "(i)", + port->id); + res_len = xmlrpc_array_size(&chamelium->env, res); + igt_assert(res_len == 8); + for (i = 0; i < res_len; i++) { + xmlrpc_array_read_item(&chamelium->env, res, i, &res_channel); + xmlrpc_read_int(&chamelium->env, res_channel, &mapping[i]); + xmlrpc_DECREF(res_channel); + } + xmlrpc_DECREF(res); +} + +/** * chamelium_start_capturing_audio: * @chamelium: the Chamelium instance * @port: the port to capture audio from (it must support audio) |