path: root/src/nullsink.c

#include <pthread.h>
#include <string.h>
#include <stdio.h>

#include <polyp/polyplib-error.h>
#include <polyp/mainloop.h>

#include "polypsink.h"

enum {
  ARG_0,
  ARG_SERVER,
  ARG_SINK,
};

static GstElementClass *parent_class = NULL;

/* static void create_stream(GstPolypSink *polypsink); */
/* static void destroy_stream(GstPolypSink *polypsink); */

/* static void create_context(GstPolypSink *polypsink); */
/* static void destroy_context(GstPolypSink *polypsink); */

static void gst_polypsink_base_init(gpointer g_class) {

    static GstStaticPadTemplate pad_template = GST_STATIC_PAD_TEMPLATE(
        "sink",
        GST_PAD_SINK,
        GST_PAD_ALWAYS,
        GST_STATIC_CAPS(
            "audio/x-raw-int, "
            "endianness = (int) { LITTLE_ENDIAN, BIG_ENDIAN },"
            "signed = (boolean) TRUE, "
            "width = (int) 16, "
            "depth = (int) 16, "
            "rate = (int) [ 1000, 96000 ], "
            "channels = (int) [1, 16]"

/*             "audio/x-raw-float, " */
/*             "endianness = (int) { LITTLE_ENDIAN, BIG_ENDIAN }, " */
/*             "width = (int) 32, " */
/*             "rate = (int) [ 1, 192000 ], " */
/*             "channels = (int) [ 1, 16 ];" */
            
/*             "audio/x-raw-int, " */
/*             "signed = (boolean) FALSE, " */
/*             "width = (int) 8, " */
/*             "depth = (int) 8, " */
/*             "rate = (int) [ 1, 192000 ], " */
/*             "channels = (int) [ 1, 16 ]" */

            )
        );

    static const GstElementDetails details = {
        "Polypaudio Audio Sink",
        "Sink/Audio",
        "Plays audio to a Polypaudio server",
        "Lennart Poettering",
    };
    
    GstElementClass *element_class = GST_ELEMENT_CLASS(g_class);
    gst_element_class_add_pad_template(element_class, gst_static_pad_template_get(&pad_template));
    gst_element_class_set_details(element_class, &details);
}

/* static void gst_polypsink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { */
/*     GstPolypSink *polypsink; */
/*     g_return_if_fail(GST_IS_POLYPSINK(object)); */
/*     polypsink = GST_POLYPSINK(object); */
    
/*     switch (prop_id) { */
/*         case ARG_SERVER: */
/*             g_free(polypsink->server); */
/*             polypsink->server = g_strdup(g_value_get_string(value)); */
/*             break; */
            
/*         case ARG_SINK: */
/*             g_free(polypsink->sink); */
/*             polypsink->sink = g_strdup(g_value_get_string(value)); */
/*             break; */
            
/*         default: */
/*             g_message("Fehler!"); */
/*             G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec); */
/*             break; */
/*     } */
/* } */

/* static void gst_polypsink_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec * pspec) { */
/*     GstPolypSink *polypsink; */
/*     g_return_if_fail(GST_IS_POLYPSINK(object)); */
/*     polypsink = GST_POLYPSINK(object); */
    
/*     switch (prop_id) { */
/*         case ARG_SERVER: */
/*             g_value_set_string(value, polypsink->server); */
/*             break; */
            
/*         case ARG_SINK: */
/*             g_value_set_string(value, polypsink->sink); */
/*             break; */
            
/*         default: */
/*             g_message("Fehler!"); */
/*             G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec); */
/*             break; */
/*     } */
/* } */

/* static GstElementStateReturn gst_polypsink_change_state(GstElement * element) { */
/*     GstPolypSink *polypsink; */
    
/*     polypsink = GST_POLYPSINK (element); */

/*     g_message("state change: %u" , GST_STATE(element)); */
    
/* /\*     switch(GST_STATE_TRANSITION(element)) { *\/ */
        
/* /\*         case GST_STATE_NULL_TO_READY: *\/ */
/* /\* /\\*             create_context(polypsink); *\\/ *\/ */
/* /\*             break; *\/ */
            
/* /\*         case GST_STATE_READY_TO_NULL: *\/ */
/* /\* /\\*             destroy_context(polypsink); *\\/ *\/ */
/* /\*             break; *\/ */

/* /\*         case GST_STATE_READY_TO_PAUSED: *\/ */
/* /\*         case GST_STATE_PLAYING_TO_PAUSED: *\/ */

/* /\* /\\*             create_stream(polypsink); *\\/ *\/ */

/* /\* /\\*             g_message("cork on due to pause"); *\\/ *\/ */
            
/* /\* /\\*             if (polypsink->stream && pa_stream_get_state(polypsink->stream) == PA_STREAM_READY) *\\/ *\/ */
/* /\* /\\*                 pa_operation_unref(pa_stream_cork(polypsink->stream, 1, NULL, NULL)); *\\/ *\/ */

/* /\*             break; *\/ */

/* /\*         case GST_STATE_PAUSED_TO_PLAYING: *\/ */

/* /\* /\\*             create_stream(polypsink); *\\/ *\/ */

/* /\* /\\*             g_message("cork off due to pause"); *\\/ *\/ */
            
/* /\* /\\*             if (polypsink->stream && pa_stream_get_state(polypsink->stream) == PA_STREAM_READY) *\\/ *\/ */
/* /\* /\\*                 pa_operation_unref(pa_stream_cork(polypsink->stream, 0, NULL, NULL)); *\\/ *\/ */

/* /\*             break; *\/ */

/* /\*         case GST_STATE_PAUSED_TO_READY: *\/ */
/* /\* /\\*             destroy_stream(polypsink); *\\/ *\/ */
/* /\*             break; *\/ */
/* /\*     } *\/ */
    
/*     if (GST_ELEMENT_CLASS(parent_class)->change_state) */
/*         return GST_ELEMENT_CLASS(parent_class)->change_state (element); */
    
/*     return GST_STATE_SUCCESS; */
/* } */


/* static void do_write(GstPolypSink *polypsink, size_t length) { */
/*     size_t l; */
    
/*     if (!polypsink->buffer) */
/*         return; */

/*     g_assert(polypsink->buffer_index < GST_BUFFER_SIZE(polypsink->buffer)); */
/*     l = GST_BUFFER_SIZE(polypsink->buffer) - polypsink->buffer_index; */

/*     if (l > length) */
/*         l = length; */

/*     pa_stream_write(polypsink->stream, GST_BUFFER_DATA(polypsink->buffer) + polypsink->buffer_index, l, NULL, 0); */
/*     polypsink->buffer_index += l; */

/* /\*     g_message("WROTE: %i/%i", polypsink->buffer_index, GST_BUFFER_SIZE(polypsink->buffer)); *\/ */

/*     if (polypsink->buffer_index >= GST_BUFFER_SIZE(polypsink->buffer)) { */
/*         gst_buffer_unref(polypsink->buffer); */
/*         polypsink->buffer = NULL; */
/*         polypsink->buffer_index = 0; */
/*     } */
/* } */

/* static void stream_write_callback(struct pa_stream *s, size_t length, void *userdata) { */
/*     GstPolypSink *polypsink = userdata; */
/*     g_assert(s && length && polypsink); */

/*     do_write(polypsink, length); */
/* } */

/* static void stream_state_callback(struct pa_stream *s, void *userdata) { */
/*     GstPolypSink *polypsink = userdata; */
/*     g_assert(s && polypsink); */

/*     g_message("stream_state_callback()"); */
    
/*     switch (pa_stream_get_state(s)) { */
/*         case PA_STREAM_DISCONNECTED: */
/*         case PA_STREAM_CREATING: */
/*             break; */

/*         case PA_STREAM_READY: */
/*             break; */

/*         case PA_STREAM_FAILED: */
/*             GST_ELEMENT_ERROR(GST_ELEMENT(polypsink), RESOURCE, BUSY, ("Stream creation failed: %s", pa_strerror(pa_context_errno(pa_stream_get_context(s)))), (NULL)); */

/*             /\* Pass over *\/ */
/*         case PA_STREAM_TERMINATED: */
/*         default: */
/*             polypsink->mainloop_api->quit(polypsink->mainloop_api, 1); */
/*             destroy_context(polypsink); */
/*             break; */
/*     } */
/* } */

/* static void context_state_callback(struct pa_context *c, void *userdata) { */
/*     GstPolypSink *polypsink = userdata; */
/*     g_assert(c && polypsink); */

/*     g_message("context_state_callback()"); */
    
/*     switch (pa_context_get_state(c)) { */
/*         case PA_CONTEXT_UNCONNECTED: */
/*         case PA_CONTEXT_CONNECTING: */
/*         case PA_CONTEXT_AUTHORIZING: */
/*         case PA_CONTEXT_SETTING_NAME: */
/*             break; */

/*         case PA_CONTEXT_READY: { */
/*             GstElementState state; */
/*             g_assert(!polypsink->stream); */
            
/*             state = gst_element_get_state(GST_ELEMENT(polypsink)); */
/*             if (state == GST_STATE_PAUSED || state == GST_STATE_PLAYING) */
/*                 create_stream(polypsink); */
            
/*             break; */
/*         } */
            
/*         case PA_CONTEXT_FAILED: */
/*             GST_ELEMENT_ERROR(GST_ELEMENT(polypsink), RESOURCE, BUSY, ("Connection failed: %s", pa_strerror(pa_context_errno(c))), (NULL)); */

/*             /\* Pass over *\/ */
/*         case PA_CONTEXT_TERMINATED: */
/*         default: */
/*             polypsink->mainloop_api->quit(polypsink->mainloop_api, 1); */
/*             destroy_context(polypsink); */
/*             break; */
/*     } */
/* } */

/* static void create_stream(GstPolypSink *polypsink) { */
/*     char t[256]; */
/*     g_assert(polypsink); */

/*     g_message("create_stream()"); */
    
/*     if (polypsink->stream) */
/*         return; */

/*     if (!polypsink->context) { */
/*         create_context(polypsink); */
/*         return; */
/*     } */

/*     if (!polypsink->negotiated) */
/*         return; */

/*     if (pa_context_get_state(polypsink->context) != PA_CONTEXT_READY) */
/*         return; */

/*     g_message("creating stream"); */
    
/*     pa_sample_spec_snprint(t, sizeof(t), &polypsink->sample_spec); */
    
/*     polypsink->stream = pa_stream_new(polypsink->context, "gstreamer output", &polypsink->sample_spec); */
/*     g_assert(polypsink->stream); */
    
/*     pa_stream_set_state_callback(polypsink->stream, stream_state_callback, polypsink); */
/*     pa_stream_set_write_callback(polypsink->stream, stream_write_callback, polypsink); */
/*     pa_stream_connect_playback(polypsink->stream, NULL, NULL); */

/*     g_message("create_stream()"); */
/* } */

/* static void create_context(GstPolypSink *polypsink) { */
/*     g_assert(polypsink); */

/*     g_message("create_context()"); */

/*     if (polypsink->context) */
/*         return; */

/*     g_message("creating context"); */

/*     polypsink->context = pa_context_new(polypsink->mainloop_api, "gstreamer"); */
/*     g_assert(polypsink->context); */

/*     pa_context_set_state_callback(polypsink->context, context_state_callback, polypsink); */
/*     pa_context_connect(polypsink->context, NULL); */
/* } */

/* static void destroy_stream(GstPolypSink *polypsink) { */
/*     g_message("destroy_stream()"); */
/*     g_assert(polypsink); */

/*     if (polypsink->stream) { */
/*         struct pa_stream *s = polypsink->stream; */
/*         polypsink->stream = NULL; */
/*         pa_stream_set_state_callback(s, NULL, NULL); */
/*         pa_stream_set_write_callback(s, NULL, NULL); */
/*         pa_stream_unref(s); */

/*         g_message("destroying stream"); */
/*     } */
/* } */

/* static void destroy_context(GstPolypSink *polypsink) { */
/*     g_message("destroy_context()"); */
    
/*     destroy_stream(polypsink); */

/*     if (polypsink->context) { */
/*         struct pa_context *c = polypsink->context; */
/*         polypsink->context = NULL; */
/*         pa_context_set_state_callback(c, NULL, NULL); */
/*         pa_context_unref(c); */

/*         g_message("destroying context"); */
/*     } */
/* } */

static void gst_polypsink_chain(GstPad *pad, GstData *data) {
    GstPolypSink *polypsink = GST_POLYPSINK(gst_pad_get_parent(pad));

    return;
    
/*     g_assert(!polypsink->buffer); */

/*      g_message("chain-entry");  */

/*     if (GST_IS_EVENT(data)) {  */
/*         GstEvent *event = GST_EVENT(data);  */
        
/*         switch (GST_EVENT_TYPE(event)) { */
/*             case GST_EVENT_EOS: */
/*                 g_message("EOS"); */
/*                 if (polypsink->stream) { */
/*                     struct pa_operation *o; */

/*                     pa_operation_unref(pa_stream_cork(polypsink->stream, 0, NULL, NULL)); */
/*                     o = pa_stream_drain(polypsink->stream, NULL, NULL); */

/*                     /\* drain now *\/ */
/*                     while (pa_operation_get_state(o) == PA_OPERATION_RUNNING) {  */
/*                         if (pa_mainloop_iterate(polypsink->mainloop, 1, NULL) < 0) */
/*                             return; */
/*                     }  */

/*                     pa_operation_unref(o); */
/*                 } */

/*                 break; */
/*             case GST_EVENT_FLUSH: */
/*                 g_message("FLUSH"); */
/*                 if (polypsink->stream) */
/*                     pa_operation_unref(pa_stream_flush(polypsink->stream, NULL, NULL)); */
/*                 break; */

/*             default: */
/*                 g_message("other event: %i", GST_EVENT_TYPE(event)); */
/*                 break; */
/*         } */
        
/*         gst_pad_event_default(polypsink->sinkpad, event); */
/*     } else { */
/* /\*         size_t l; *\/ */
/* /\*         polypsink->buffer = GST_BUFFER(data); *\/ */
/* /\*         polypsink->buffer_index = 0; *\/ */
/* /\*         polypsink->counter += GST_BUFFER_SIZE(polypsink->buffer); *\/ */

/* /\*         if (polypsink->stream && (l = pa_stream_writable_size(polypsink->stream)) > 0) *\/ */
/* /\*             do_write(polypsink, l); *\/ */

/*         gst_data_unref(data); */
/*     } */

/* /\*     while (pa_context_is_pending(polypsink->context) || polypsink->buffer) { *\/ */

/* /\*           g_message("iterate start %i %i", !!pa_context_is_pending(polypsink->context), !!polypsink->buffer);   *\/ */
        
/* /\*         if (pa_mainloop_iterate(polypsink->mainloop, 1, NULL) < 0) *\/ */
/* /\*             return; *\/ */

/* /\*           g_message("iterate stop");   *\/ */

/* /\*     } *\/ */

/*      g_message("chain-exit");  */
}

/* static void stream_get_latency_callback(struct pa_stream *s, const struct pa_latency_info *i, void *userdata) { */
/*     GstPolypSink *polypsink = (GstPolypSink*) userdata; */

/*     polypsink->latency = i->buffer_usec + i->sink_usec; */
/* } */

/* static GstClockTime gst_polypsink_get_time(GstClock *clock, gpointer data) { */
/*     struct pa_operation *o; */
/*     GstPolypSink *polypsink = GST_POLYPSINK(data); */
/*     GstClockTime r, l; */
    
/*     if (!polypsink->stream || pa_stream_get_state(polypsink->stream) != PA_STREAM_READY) */
/*         return 0; */

/*     polypsink->latency = 0; */
    
/*     o = pa_stream_get_latency(polypsink_>stream, latency_func, polypsink); */
/*     g_assert(o); */
    
/*     while (pa_operation_get_state(o) == PA_OPERATION_RUNNING) { */
/*         if (pa_mainloop_iterate(polypsink->mainloop, 1, NULL) < 0) */
/*             return; */
/*     } */

/*     r = ((GstClockTime) polypsink->counter / pa_frame_size(&polypsink->sample_spec))*GST_SECOND/polypsink->sample_spec.rate; */
/*     l = polypsink->latency*GST_USECOND; */

/*     return r > l ? r - l : 0; */
/* } */

/* static GstClock *gst_polypsink_get_clock(GstElement * element) { */
/*     GstPolypSink *polypsink = GST_POLYPSINK (element); */
/*     return GST_CLOCK (polypsink->provided_clock); */
/* } */

/* static void gst_polypsink_set_clock (GstElement * element, GstClock * clock) { */
/*     GstPolypSink *polypsink = GST_POLYPSINK (element); */
/*     polypsink->clock = clock; */
/* } */

/* static GstPadLinkReturn gst_polypsink_link(GstPad *pad, const GstCaps *caps) { */
/*     int depth = 16, endianness = 1234; */
/*     gboolean sign = TRUE; */
/*     GstPolypSink *polypsink; */
/*     GstStructure *structure; */
/*     const char *n; */
    
/*     polypsink = GST_POLYPSINK(gst_pad_get_parent(pad)); */

/*     g_message("link: %p", polypsink); */
    
/*     structure = gst_caps_get_structure(caps, 0); */

/*     if (!(gst_structure_get_int(structure, "depth", &depth))) */
/*         gst_structure_get_int(structure, "width", &depth); */

/*     gst_structure_get_int(structure, "endianness", &endianness); */
/*     gst_structure_get_boolean(structure, "signed", &sign); */

/*     n = gst_structure_get_name(structure); */

/*     if (depth == 16 && endianness == 1234 && sign && !strcmp(n, "audio/x-raw-int")) */
/*         polypsink->sample_spec.format = PA_SAMPLE_S16LE; */
/*     else if (depth == 16 && endianness == 4321 && sign && !strcmp(n, "audio/x-raw-int")) */
/*         polypsink->sample_spec.format = PA_SAMPLE_S16BE; */
/*     else if (depth == 8 && !sign && !strcmp(n, "audio/x-raw-int")) */
/*         polypsink->sample_spec.format = PA_SAMPLE_U8; */
/*     else if (depth == 32 && endianness == 1234 && !strcmp(n, "audio/x-raw-float")) */
/*         polypsink->sample_spec.format = PA_SAMPLE_FLOAT32LE; */
/*     else if (depth == 32 && endianness == 4321 && !strcmp(n, "audio/x-raw-float")) */
/*         polypsink->sample_spec.format = PA_SAMPLE_FLOAT32LE; */
/*     else */
/*         return GST_PAD_LINK_REFUSED; */


/*     polypsink->sample_spec.rate = 0; */
/*     polypsink->sample_spec.channels = 0; */
    
/*     gst_structure_get_int(structure, "channels", (int*) &polypsink->sample_spec.channels); */
/*     gst_structure_get_int(structure, "rate", &polypsink->sample_spec.rate); */

/*     if (!pa_sample_spec_valid(&polypsink->sample_spec)) */
/*         return GST_PAD_LINK_REFUSED; */

/*     polypsink->negotiated = 1; */

/* /\*     destroy_stream(polypsink); *\/ */
/*     /\*create_stream(polypsink);*\/ */

/*     return GST_PAD_LINK_OK; */
/* } */


static void gst_polypsink_init(GTypeInstance* instance, gpointer g_class) {
    GstPolypSink *polypsink = GST_POLYPSINK(instance);

    g_message("created: %p", polypsink);
    
    polypsink->sinkpad = gst_pad_new_from_template(gst_element_class_get_pad_template(GST_ELEMENT_GET_CLASS (instance), "sink"), "sink");
    
    gst_element_add_pad(GST_ELEMENT(polypsink), polypsink->sinkpad);
    gst_pad_set_chain_function(polypsink->sinkpad, gst_polypsink_chain);
/*    gst_pad_set_link_function(polypsink->sinkpad, gst_polypsink_link);*/
    
/*    GST_FLAG_SET (polypsink, GST_ELEMENT_THREAD_SUGGESTED);*/
    GST_FLAG_SET(polypsink, GST_ELEMENT_EVENT_AWARE);

/*     polypsink->context = NULL; */
/*     polypsink->stream = NULL; */

/*     polypsink->mainloop = NULL; */
/*     polypsink->mainloop_api = NULL; */

    /*pa_mainloop_new();
    g_assert(polypsink->mainloop);

    polypsink->mainloop_api = pa_mainloop_get_api(polypsink->mainloop);*/

/*     polypsink->sample_spec.rate = 0; */
/*     polypsink->sample_spec.channels = 0; */
/*     polypsink->sample_spec.format = 0; */

/*     polypsink->negotiated = 0; */

/*     polypsink->buffer = NULL; */
/*     polypsink->buffer_index = 0; */

/*     polypsink->latency = 0; */
/*     polypsink->counter = 0; */

/*     polypsink->server = NULL; */
/*     polypsink->sink = NULL; */
    
}

static void gst_polypsink_dispose(GObject *object) {
    GstPolypSink *polypsink = GST_POLYPSINK(object);

/*     gst_object_unparent(GST_OBJECT(polypsink->provided_clock)); */

    
/*     destroy_context(polypsink); */

/*     if (polypsink->buffer) */
/*         gst_buffer_unref(polypsink->buffer); */

    
/*     g_free(polypsink->server); */
/*     g_free(polypsink->sink); */

    
/*     pa_mainloop_free(polypsink->mainloop); */
    
    G_OBJECT_CLASS(parent_class)->dispose(object);

    g_message("destroyed: %p", polypsink);
}
    
static void gst_polypsink_class_init(gpointer g_class, gpointer class_data) {
    GObjectClass *gobject_class = G_OBJECT_CLASS(g_class);
    GstElementClass *gstelement_class = GST_ELEMENT_CLASS(g_class);
    
    parent_class = g_type_class_peek_parent(g_class);

/*     g_object_class_install_property(gobject_class, ARG_SERVER, g_param_spec_string("server", "server", "server", NULL, G_PARAM_READWRITE)); */
/*     g_object_class_install_property(gobject_class, ARG_SINK, g_param_spec_string("sink", "sink", "sink", NULL, G_PARAM_READWRITE)); */

/*     gobject_class->set_property = gst_polypsink_set_property; */
/*     gobject_class->get_property = gst_polypsink_get_property; */
    gobject_class->dispose = gst_polypsink_dispose;
    
/*     gstelement_class->change_state = gst_polypsink_change_state; */
/*     gstelement_class->set_clock = gst_polypsink_set_clock;  */
/*     gstelement_class->get_clock = gst_polypsink_get_clock;  */
}


gboolean gst_polypsink_factory_init(GstPlugin *plugin) {
    return gst_element_register(plugin, "polypsink", GST_RANK_NONE, GST_TYPE_POLYPSINK);
}

GType gst_polypsink_get_type(void) {
    static GType polypsink_type = 0;
    
    if (!polypsink_type) {
        
        static const GTypeInfo polypsink_info = {
            sizeof (GstPolypSinkClass),
            gst_polypsink_base_init,
            NULL,
            gst_polypsink_class_init,
            NULL,
            NULL,
            sizeof(GstPolypSink),
            0,
            gst_polypsink_init,
        };
        
        polypsink_type = g_type_register_static(GST_TYPE_ELEMENT, "GstPolypSink", &polypsink_info, 0);
    }
    
    return polypsink_type;
}