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-rw-r--r--src/cmumble.c148
1 files changed, 120 insertions, 28 deletions
diff --git a/src/cmumble.c b/src/cmumble.c
index 342c63c..92c399f 100644
--- a/src/cmumble.c
+++ b/src/cmumble.c
@@ -38,15 +38,25 @@ struct context {
GSocket *sock;
GIOStream *iostream;
+ uint8_t celt_header_packet[sizeof(CELTHeader)];
CELTHeader celt_header;
CELTMode *celt_mode;
- GstElement *playback_pipeline;
GstElement *record_pipeline;
- GstAppSrc *src;
GstAppSink *sink;
int64_t sequence;
+
+ GList *users;
+};
+
+struct user {
+ uint32_t session;
+ char *name;
+ uint32_t user_id;
+
+ GstElement *pipeline;
+ GstAppSrc *src;
};
enum udp_message_type {
@@ -56,6 +66,23 @@ enum udp_message_type {
udp_voice_celt_beta
};
+static struct user *
+find_user(struct context *ctx, uint32_t session)
+{
+ struct user *user = NULL, *tmp;
+ GList *l;
+
+ for (l = ctx->users; l; l = l->next) {
+ tmp = l->data;
+ if (tmp->session == session) {
+ user = tmp;
+ break;
+ }
+ }
+
+ return user;
+}
+
static void
appsrc_push(GstAppSrc *src, const void *mem, size_t size)
{
@@ -147,12 +174,19 @@ handle_udp(struct context *ctx, uint8_t *data, uint32_t len)
uint32_t pos = 1;
uint32_t read = 0;
uint8_t frame_len, terminator;
+ struct user *user = NULL;
session = decode_varint(&data[pos], &read, len-pos);
pos += read;
sequence = decode_varint(&data[pos], &read, len-pos);
pos += read;
+ user = find_user(ctx, session);
+ if (user == NULL) {
+ g_printerr("received audio packet from unknown user, dropping.\n");
+ return;
+ }
+
do {
frame_len = data[pos] & 0x7F;
terminator = data[pos] & 0x80;
@@ -161,7 +195,7 @@ handle_udp(struct context *ctx, uint8_t *data, uint32_t len)
if (frame_len == 0 || frame_len > len-pos)
break;
- appsrc_push(ctx->src, &data[pos], frame_len);
+ appsrc_push(user->src, &data[pos], frame_len);
pos += frame_len;
sequence++;
@@ -226,12 +260,56 @@ recv_codec_version(MumbleProto__CodecVersion *codec, struct context *ctx)
codec->alpha, codec->beta, codec->prefer_alpha);
}
+
+static void
+recv_user_remove(MumbleProto__UserRemove *remove, struct context *ctx)
+{
+ struct user *user = NULL;
+
+ if ((user = find_user(ctx, remove->session))) {
+ ctx->users = g_list_remove(ctx->users, user);
+ g_free(user->name);
+ /* FIXME: destroy playback pipeline */
+ g_free(user);
+ }
+}
+
+static int
+user_create_playback_pipeline(struct context *ctx, struct user *user);
+
+static void
+recv_user_state(MumbleProto__UserState *state, struct context *ctx)
+{
+ struct user *user = NULL;
+
+ if ((user = find_user(ctx, state->session))) {
+ /* update */
+ return;
+ }
+
+ user = g_new0(struct user, 1);
+ if (user == NULL) {
+ g_printerr("Out of memory.\n");
+ exit(1);
+ }
+
+ user->session = state->session;
+ user->name = g_strdup(state->name);
+ user->user_id = state->user_id;
+
+ user_create_playback_pipeline(ctx, user);
+ g_print("receive user: %s\n", user->name);
+ ctx->users = g_list_prepend(ctx->users, user);
+}
+
typedef void (*callback_t)(void *, void *);
static const callback_t callbacks[] = {
/* VERSION */ (callback_t) recv_version,
[5] = (callback_t) recv_server_sync,
[7] = (callback_t) recv_channel_state,
+ [8] = (callback_t) recv_user_remove,
+ [9] = (callback_t) recv_user_state,
[15] = (callback_t) recv_crypt_setup,
[21] = (callback_t) recv_codec_version,
[127] = NULL,
@@ -415,16 +493,18 @@ static GstAppSrcCallbacks app_callbacks = {
};
static int
-setup_playback_gst_pipeline(struct context *ctx)
+user_create_playback_pipeline(struct context *ctx, struct user *user)
{
GstElement *pipeline, *src, *decoder, *conv, *sink;
GstBus *bus;
+ uint32_t s = user->session;
- pipeline = gst_pipeline_new("cmumble-output");
- src = gst_element_factory_make("appsrc", "input");
- decoder = gst_element_factory_make("celtdec", "celt-decoder");
- conv = gst_element_factory_make("audioconvert", "converter");
- sink = gst_element_factory_make("autoaudiosink", "audio-output");
+ /* FIXME: free strings buffers */
+ pipeline = gst_pipeline_new(g_strdup_printf("cmumble-output-%d", s));
+ src = gst_element_factory_make("appsrc", g_strdup_printf("input-%d", s));
+ decoder = gst_element_factory_make("celtdec", g_strdup_printf("celt-decoder-%d", s));
+ conv = gst_element_factory_make("audioconvert", g_strdup_printf("converter-%d", s));
+ sink = gst_element_factory_make("autoaudiosink", g_strdup_printf("audio-output-%d", s));
if (!pipeline || !src || !decoder || !conv || !sink) {
g_printerr("failed to initialize pipeline\n");
@@ -439,34 +519,39 @@ setup_playback_gst_pipeline(struct context *ctx)
src, decoder, conv, sink, NULL);
gst_element_link_many(src, decoder, conv, sink, NULL);
- ctx->src = GST_APP_SRC(src);
- ctx->playback_pipeline = pipeline;
+ user->src = GST_APP_SRC(src);
+ user->pipeline = pipeline;
/* Important! */
- gst_base_src_set_live(GST_BASE_SRC(ctx->src), TRUE);
- gst_base_src_set_do_timestamp(GST_BASE_SRC(ctx->src), TRUE);
- gst_base_src_set_format(GST_BASE_SRC(ctx->src), GST_FORMAT_TIME);
+ gst_base_src_set_live(GST_BASE_SRC(user->src), TRUE);
+ gst_base_src_set_do_timestamp(GST_BASE_SRC(user->src), TRUE);
+ gst_base_src_set_format(GST_BASE_SRC(user->src), GST_FORMAT_TIME);
- gst_app_src_set_stream_type(ctx->src, GST_APP_STREAM_TYPE_STREAM);
- gst_app_src_set_callbacks(ctx->src, &app_callbacks, ctx, NULL);
+ gst_app_src_set_stream_type(user->src, GST_APP_STREAM_TYPE_STREAM);
+ gst_app_src_set_callbacks(user->src, &app_callbacks, ctx, NULL);
gst_element_set_state(pipeline, GST_STATE_PLAYING);
- { /* Setup Celt Decoder */
+ /* Setup Celt Decoder */
+ appsrc_push(user->src, ctx->celt_header_packet, sizeof(CELTHeader));
+ /* fake vorbiscomment buffer */
+ appsrc_push(user->src, NULL, 0);
+
+
+ return 0;
+}
+
+static int
+setup_playback_gst_pipeline(struct context *ctx)
+{
#define SAMPLERATE 48000
#define CHANNELS 1
- uint8_t celt_header_packet[sizeof(CELTHeader)];
-
- ctx->celt_mode = celt_mode_create(SAMPLERATE,
- SAMPLERATE / 100, NULL);
- celt_header_init(&ctx->celt_header, ctx->celt_mode, CHANNELS);
- celt_header_to_packet(&ctx->celt_header,
- celt_header_packet, sizeof(CELTHeader));
- appsrc_push(ctx->src, celt_header_packet, sizeof(CELTHeader));
- /* fake vorbiscomment buffer */
- appsrc_push(ctx->src, NULL, 0);
- }
+ ctx->celt_mode = celt_mode_create(SAMPLERATE,
+ SAMPLERATE / 100, NULL);
+ celt_header_init(&ctx->celt_header, ctx->celt_mode, CHANNELS);
+ celt_header_to_packet(&ctx->celt_header,
+ ctx->celt_header_packet, sizeof(CELTHeader));
return 0;
}
@@ -552,8 +637,15 @@ int main(int argc, char **argv)
GError *error = NULL;
GSource *source;
+ if (argc >= 3)
+ host = argv[2];
+ if (argc >= 4)
+ port = atoi(argv[3]);
+
memset(&ctx, 0, sizeof(ctx));
+ ctx.users = NULL;
+
g_type_init();
ctx.sock_client = g_socket_client_new();
g_socket_client_set_tls(ctx.sock_client, TRUE);