X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=libchimara%2Fschannel.c;h=8cd7b526bddb86b8f401ec3879255b6b3470293f;hb=9f8d696d62df3312aa3c3f2c7bcf33096fd07d4c;hp=d93101f1ef543fe082e968cd805cf14286188573;hpb=35175d59d5b8cae0e5efcb6596d638bc53ab2a1c;p=projects%2Fchimara%2Fchimara.git diff --git a/libchimara/schannel.c b/libchimara/schannel.c index d93101f..8cd7b52 100644 --- a/libchimara/schannel.c +++ b/libchimara/schannel.c @@ -1,5 +1,6 @@ #include #include +#include #include #ifdef GSTREAMER_SOUND #include @@ -8,9 +9,158 @@ #include "schannel.h" #include "chimara-glk-private.h" #include "gi_dispa.h" +#include "gi_blorb.h" +#include "resource.h" +#include "event.h" extern GPrivate *glk_data_key; +#ifdef GSTREAMER_SOUND +/* Stop any currently playing sound on this channel, and remove any + format-specific GStreamer elements from the channel. */ +static void +clean_up_after_playing_sound(schanid_t chan) +{ + if(!gst_element_set_state(chan->pipeline, GST_STATE_NULL)) + WARNING_S(_("Could not set GstElement state to"), "NULL"); + if(chan->demux) + { + gst_bin_remove(GST_BIN(chan->pipeline), chan->demux); + chan->demux = NULL; + } + if(chan->decode) + { + gst_bin_remove(GST_BIN(chan->pipeline), chan->decode); + chan->decode = NULL; + } +} + +/* This signal is thrown whenever the GStreamer pipeline generates a message. + Most messages are harmless. */ +static void +on_pipeline_message(GstBus *bus, GstMessage *message, schanid_t s) +{ + /* g_printerr("Got %s message\n", GST_MESSAGE_TYPE_NAME(message)); */ + + GError *err; + gchar *debug_message; + + switch(GST_MESSAGE_TYPE(message)) { + case GST_MESSAGE_ERROR: + { + gst_message_parse_error(message, &err, &debug_message); + IO_WARNING(_("GStreamer error"), err->message, debug_message); + g_error_free(err); + g_free(debug_message); + clean_up_after_playing_sound(s); + } + break; + case GST_MESSAGE_WARNING: + { + gst_message_parse_warning(message, &err, &debug_message); + IO_WARNING(_("GStreamer warning"), err->message, debug_message); + g_error_free(err); + g_free(debug_message); + } + break; + case GST_MESSAGE_INFO: + { + gst_message_parse_info(message, &err, &debug_message); + g_message("GStreamer info \"%s\": %s", err->message, debug_message); + g_error_free(err); + g_free(debug_message); + } + break; + case GST_MESSAGE_EOS: /* End of stream */ + /* Decrease repeats if not set to forever */ + if(s->repeats != (glui32)-1) + s->repeats--; + if(s->repeats > 0) { + if(!gst_element_seek_simple(s->pipeline, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_KEY_UNIT, 0)) { + WARNING(_("Could not execute GStreamer seek")); + clean_up_after_playing_sound(s); + } + } else { + clean_up_after_playing_sound(s); + /* Sound ended normally, send a notification if requested */ + if(s->notify) + event_throw(s->glk, evtype_SoundNotify, NULL, s->resource, s->notify); + } + break; + default: + /* unhandled message */ + break; + } +} + +/* This signal is thrown when the OGG demuxer element has decided what kind of + outputs it will output. We connect the decoder element dynamically. */ +static void +on_ogg_demuxer_pad_added(GstElement *demux, GstPad *pad, schanid_t s) +{ + GstPad *sinkpad; + + /* We can now link this pad with the vorbis-decoder sink pad */ + sinkpad = gst_element_get_static_pad(s->decode, "sink"); + if(gst_pad_link(pad, sinkpad) != GST_PAD_LINK_OK) + WARNING(_("Could not link OGG demuxer with Vorbis decoder")); + gst_object_unref(sinkpad); +} + +/* This signal is thrown when the typefinder element has found the type of its + input. Now that we know what kind of input stream we have, we can connect the + proper demuxer/decoder elements. */ +static void +on_type_found(GstElement *typefind, guint probability, GstCaps *caps, schanid_t s) +{ + gchar *type = gst_caps_to_string(caps); + if(strcmp(type, "application/ogg") == 0) { + s->demux = gst_element_factory_make("oggdemux", NULL); + s->decode = gst_element_factory_make("vorbisdec", NULL); + if(!s->demux || !s->decode) { + WARNING(_("Could not create one or more GStreamer elements")); + goto finally; + } + gst_bin_add_many(GST_BIN(s->pipeline), s->demux, s->decode, NULL); + if(!gst_element_link(s->typefind, s->demux) || !gst_element_link(s->decode, s->convert)) { + WARNING(_("Could not link GStreamer elements")); + goto finally; + } + /* We link the demuxer and decoder together dynamically, since the + demuxer doesn't know what source pads it will have until it starts + demuxing the stream */ + g_signal_connect(s->demux, "pad-added", G_CALLBACK(on_ogg_demuxer_pad_added), s); + } else if(strcmp(type, "audio/x-aiff") == 0) { + s->decode = gst_element_factory_make("aiffparse", NULL); + if(!s->decode) { + WARNING(_("Could not create 'aiffparse' GStreamer element")); + goto finally; + } + gst_bin_add(GST_BIN(s->pipeline), s->decode); + if(!gst_element_link_many(s->typefind, s->decode, s->convert, NULL)) { + WARNING(_("Could not link GStreamer elements")); + goto finally; + } + } else if(strcmp(type, "audio/x-mod") == 0) { + s->decode = gst_element_factory_make("modplug", NULL); + if(!s->decode) { + WARNING(_("Could not create 'modplug' GStreamer element")); + goto finally; + } + gst_bin_add(GST_BIN(s->pipeline), s->decode); + if(!gst_element_link_many(s->typefind, s->decode, s->convert, NULL)) { + WARNING(_("Could not link GStreamer elements")); + goto finally; + } + } else { + WARNING_S(_("Unexpected audio type in blorb"), type); + } + +finally: + g_free(type); +} +#endif /* GSTREAMER_SOUND */ + /** * glk_schannel_create: * @rock: The rock value to give the new sound channel. @@ -38,25 +188,40 @@ glk_schannel_create(glui32 rock) glk_data->schannel_list = g_list_prepend(glk_data->schannel_list, s); s->schannel_list = glk_data->schannel_list; + /* Add a pointer to the ChimaraGlk widget, for convenience */ + s->glk = glk_data->self; + /* Create a GStreamer pipeline for the sound channel */ gchar *pipeline_name = g_strdup_printf("pipeline-%p", s); s->pipeline = gst_pipeline_new(pipeline_name); g_free(pipeline_name); + /* Watch for messages from the pipeline */ + GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(s->pipeline)); + gst_bus_add_signal_watch(bus); + g_signal_connect(bus, "message", G_CALLBACK(on_pipeline_message), s); + gst_object_unref(bus); + /* Create GStreamer elements to put in the pipeline */ - s->source = gst_element_factory_make("filesrc", NULL); - s->filter = gst_element_factory_make("identity", NULL); + s->source = gst_element_factory_make("giostreamsrc", NULL); + s->typefind = gst_element_factory_make("typefind", NULL); + s->convert = gst_element_factory_make("audioconvert", NULL); + s->filter = gst_element_factory_make("volume", NULL); s->sink = gst_element_factory_make("autoaudiosink", NULL); - if(!s->source || !s->filter || !s->sink) { - WARNING("Could not create one or more GStreamer elements"); + if(!s->source || !s->typefind || !s->convert || !s->filter || !s->sink) { + WARNING(_("Could not create one or more GStreamer elements")); goto fail; } - - gst_bin_add_many(GST_BIN(s->pipeline), s->source, s->filter, s->sink, NULL); - if(!gst_element_link_many(s->source, s->filter, s->sink, NULL)) { - WARNING("Could not link GStreamer elements"); + + /* Put the elements in the pipeline and link as many together as we can + without knowing the type of the audio stream */ + gst_bin_add_many(GST_BIN(s->pipeline), s->source, s->typefind, s->convert, s->filter, s->sink, NULL); + /* Link elements: Source -> typefinder -> ??? -> Converter -> Volume filter -> Sink */ + if(!gst_element_link(s->source, s->typefind) || !gst_element_link_many(s->convert, s->filter, s->sink, NULL)) { + WARNING(_("Could not link GStreamer elements")); goto fail; } + g_signal_connect(s->typefind, "have-type", G_CALLBACK(on_type_found), s); return s; @@ -82,6 +247,9 @@ glk_schannel_destroy(schanid_t chan) #ifdef GSTREAMER_SOUND ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key); + + if(!gst_element_set_state(chan->pipeline, GST_STATE_NULL)) + WARNING_S(_("Could not set GstElement state to"), "NULL"); glk_data->schannel_list = g_list_delete_link(glk_data->schannel_list, chan->schannel_list); @@ -90,7 +258,8 @@ glk_schannel_destroy(schanid_t chan) (*glk_data->unregister_obj)(chan, gidisp_Class_Schannel, chan->disprock); chan->disprock.ptr = NULL; } - + + /* This also frees all the objects inside the pipeline */ if(chan->pipeline) gst_object_unref(chan->pipeline); @@ -172,8 +341,6 @@ glk_schannel_get_rock(schanid_t chan) * in which case playing a MOD resource would fail if one was already playing. * * - * This function is not implemented yet. - * * Returns: 1 on success, 0 on failure. */ glui32 @@ -215,8 +382,6 @@ glk_schannel_play(schanid_t chan, glui32 snd) * %gestalt_SoundNotify selector before you rely on it; see Testing for Sound * Capabilities. - * - * This function is not implemented yet. * * Returns: 1 on success, 0 on failure. */ @@ -224,7 +389,67 @@ glui32 glk_schannel_play_ext(schanid_t chan, glui32 snd, glui32 repeats, glui32 notify) { VALID_SCHANNEL(chan, return 0); + g_printerr("Play sound %d with repeats %d and notify %d\n", snd, repeats, notify); +#ifdef GSTREAMER_SOUND + ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key); + GInputStream *stream; + + /* Stop the previous sound */ + clean_up_after_playing_sound(chan); + + /* Don't play if repeats = 0 */ + if(repeats == 0) { + chan->repeats = 0; + return 1; + } + + /* Load the sound into a GInputStream, by whatever method */ + if(!glk_data->resource_map) { + if(!glk_data->resource_load_callback) { + WARNING(_("No resource map has been loaded yet.")); + return 0; + } + gchar *filename = glk_data->resource_load_callback(CHIMARA_RESOURCE_SOUND, snd, glk_data->resource_load_callback_data); + if(!filename) { + WARNING(_("Error loading resource from alternative location.")); + return 0; + } + + GError *err = NULL; + GFile *file = g_file_new_for_path(filename); + stream = G_INPUT_STREAM(g_file_read(file, NULL, &err)); + if(!stream) { + IO_WARNING(_("Error loading resource from file"), filename, err->message); + g_free(filename); + g_object_unref(file); + return 0; + } + g_free(filename); + g_object_unref(file); + } else { + giblorb_result_t resource; + giblorb_err_t result = giblorb_load_resource(glk_data->resource_map, giblorb_method_Memory, &resource, giblorb_ID_Snd, snd); + if(result != giblorb_err_None) { + WARNING_S( _("Error loading resource"), giblorb_get_error_message(result) ); + return 0; + } + stream = g_memory_input_stream_new_from_data(resource.data.ptr, resource.length, NULL); + } + + chan->repeats = repeats; + chan->resource = snd; + chan->notify = notify; + g_object_set(chan->source, "stream", stream, NULL); + g_object_unref(stream); /* Now owned by GStreamer element */ + + if(!gst_element_set_state(chan->pipeline, GST_STATE_PLAYING)) { + WARNING_S(_("Could not set GstElement state to"), "PLAYING"); + return 0; + } + return 1; +#else return 0; +#endif } /** @@ -233,13 +458,14 @@ glk_schannel_play_ext(schanid_t chan, glui32 snd, glui32 repeats, glui32 notify) * * Stops any sound playing in the channel. No notification event is generated, * even if you requested one. If no sound is playing, this has no effect. - * - * This function is not implemented yet. */ void glk_schannel_stop(schanid_t chan) { VALID_SCHANNEL(chan, return); +#ifdef GSTREAMER_SOUND + clean_up_after_playing_sound(chan); +#endif } /** @@ -266,12 +492,20 @@ glk_schannel_stop(schanid_t chan) * linkend="chimara-Testing-for-Sound-Capabilities">Testing for Sound * Capabilities. * - * This function is not implemented yet. + * Chimara + * Chimara supports volumes from 0 to 1000%, that is, values of + * @vol up to 0xA0000. + * */ void glk_schannel_set_volume(schanid_t chan, glui32 vol) { VALID_SCHANNEL(chan, return); +#ifdef GSTREAMER_SOUND + gdouble volume_gst = (gdouble)vol / 0x10000; + g_printerr("Volume set to: %f\n", volume_gst); + g_object_set(chan->filter, "volume", CLAMP(volume_gst, 0.0, 10.0), NULL); +#endif } /** @@ -286,10 +520,41 @@ glk_schannel_set_volume(schanid_t chan, glui32 vol) * @flag is zero, the library may release memory or other resources associated * with the sound. Calling this function is always optional, and it has no * effect on what the library actually plays. - * - * This function is not implemented yet. */ void glk_sound_load_hint(glui32 snd, glui32 flag) { +#ifdef GSTREAMER_SOUND + ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key); + giblorb_result_t resource; + giblorb_err_t result; + + /* Sound load hints only work for Blorb resource maps */ + if(!glk_data->resource_map) + return; + + if(flag) { + /* The sound load hint simply loads the resource from the resource map; + loading a chunk more than once does nothing */ + result = giblorb_load_resource(glk_data->resource_map, giblorb_method_Memory, &resource, giblorb_ID_Snd, snd); + if(result != giblorb_err_None) { + WARNING_S( _("Error loading resource"), giblorb_get_error_message(result) ); + return; + } + } else { + /* Get the Blorb chunk number by loading the resource with + method_DontLoad, then unload that chunk - has no effect if the chunk + isn't loaded */ + result = giblorb_load_resource(glk_data->resource_map, giblorb_method_DontLoad, &resource, giblorb_ID_Snd, snd); + if(result != giblorb_err_None) { + WARNING_S( _("Error loading resource"), giblorb_get_error_message(result) ); + return; + } + result = giblorb_unload_chunk(glk_data->resource_map, resource.chunknum); + if(result != giblorb_err_None) { + WARNING_S( _("Error unloading chunk"), giblorb_get_error_message(result) ); + return; + } + } +#endif /* GSTREAMER_SOUND */ }