summaryrefslogtreecommitdiffstats
path: root/src/tools/pw-mididump.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/tools/pw-mididump.c233
1 files changed, 233 insertions, 0 deletions
diff --git a/src/tools/pw-mididump.c b/src/tools/pw-mididump.c
new file mode 100644
index 0000000..d6b803f
--- /dev/null
+++ b/src/tools/pw-mididump.c
@@ -0,0 +1,233 @@
+/* PipeWire
+ *
+ * Copyright © 2020 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <signal.h>
+#include <math.h>
+#include <getopt.h>
+#include <locale.h>
+
+#include <spa/utils/result.h>
+#include <spa/utils/defs.h>
+#include <spa/control/control.h>
+#include <spa/param/audio/format-utils.h>
+#include <spa/param/props.h>
+
+#include <pipewire/pipewire.h>
+#include <pipewire/filter.h>
+
+#include "midifile.h"
+
+struct data;
+
+struct port {
+ struct data *data;
+};
+
+struct data {
+ struct pw_main_loop *loop;
+ const char *opt_remote;
+ struct pw_filter *filter;
+ struct port *in_port;
+ int64_t clock_time;
+};
+
+static int dump_file(const char *filename)
+{
+ struct midi_file *file;
+ struct midi_file_info info;
+ struct midi_event ev;
+
+ file = midi_file_open(filename, "r", &info);
+ if (file == NULL) {
+ fprintf(stderr, "error opening %s: %m\n", filename);
+ return -1;
+ }
+
+ printf("opened %s\n", filename);
+
+ while (midi_file_read_event(file, &ev) == 1) {
+ midi_file_dump_event(stdout, &ev);
+ }
+ midi_file_close(file);
+
+ return 0;
+}
+
+static void on_process(void *_data, struct spa_io_position *position)
+{
+ struct data *data = _data;
+ struct pw_buffer *b;
+ struct spa_buffer *buf;
+ struct spa_data *d;
+ struct spa_pod *pod;
+ struct spa_pod_control *c;
+ uint64_t frame;
+
+ frame = data->clock_time;
+ data->clock_time += position->clock.duration;
+
+ b = pw_filter_dequeue_buffer(data->in_port);
+ if (b == NULL)
+ return;
+
+ buf = b->buffer;
+ d = &buf->datas[0];
+
+ if (d->data == NULL)
+ return;
+
+ if ((pod = spa_pod_from_data(d->data, d->maxsize, d->chunk->offset, d->chunk->size)) == NULL)
+ return;
+ if (!spa_pod_is_sequence(pod))
+ return;
+
+ SPA_POD_SEQUENCE_FOREACH((struct spa_pod_sequence*)pod, c) {
+ struct midi_event ev;
+
+ if (c->type != SPA_CONTROL_Midi)
+ continue;
+
+ ev.track = 0;
+ ev.sec = (frame + c->offset) / (float) position->clock.rate.denom;
+ ev.data = SPA_POD_BODY(&c->value),
+ ev.size = SPA_POD_BODY_SIZE(&c->value);
+
+ printf("%4d: ", c->offset);
+ midi_file_dump_event(stdout, &ev);
+ }
+
+ pw_filter_queue_buffer(data->in_port, b);
+}
+
+static const struct pw_filter_events filter_events = {
+ PW_VERSION_FILTER_EVENTS,
+ .process = on_process,
+};
+
+static void do_quit(void *userdata, int signal_number)
+{
+ struct data *data = userdata;
+ pw_main_loop_quit(data->loop);
+}
+
+static int dump_filter(struct data *data)
+{
+ data->loop = pw_main_loop_new(NULL);
+ if (data->loop == NULL)
+ return -errno;
+
+ pw_loop_add_signal(pw_main_loop_get_loop(data->loop), SIGINT, do_quit, data);
+ pw_loop_add_signal(pw_main_loop_get_loop(data->loop), SIGTERM, do_quit, data);
+
+ data->filter = pw_filter_new_simple(
+ pw_main_loop_get_loop(data->loop),
+ "midi-dump",
+ pw_properties_new(
+ PW_KEY_REMOTE_NAME, data->opt_remote,
+ PW_KEY_MEDIA_TYPE, "Midi",
+ PW_KEY_MEDIA_CATEGORY, "Filter",
+ PW_KEY_MEDIA_ROLE, "DSP",
+ NULL),
+ &filter_events,
+ data);
+
+ data->in_port = pw_filter_add_port(data->filter,
+ PW_DIRECTION_INPUT,
+ PW_FILTER_PORT_FLAG_MAP_BUFFERS,
+ sizeof(struct port),
+ pw_properties_new(
+ PW_KEY_FORMAT_DSP, "8 bit raw midi",
+ PW_KEY_PORT_NAME, "input",
+ NULL),
+ NULL, 0);
+
+ if (pw_filter_connect(data->filter, PW_FILTER_FLAG_RT_PROCESS, NULL, 0) < 0) {
+ fprintf(stderr, "can't connect\n");
+ return -1;
+ }
+
+ pw_main_loop_run(data->loop);
+
+ pw_filter_destroy(data->filter);
+ pw_main_loop_destroy(data->loop);
+
+ return 0;
+}
+
+static void show_help(const char *name, bool error)
+{
+ fprintf(error ? stderr : stdout, "%s [options] [FILE]\n"
+ " -h, --help Show this help\n"
+ " --version Show version\n"
+ " -r, --remote Remote daemon name\n",
+ name);
+}
+
+int main(int argc, char *argv[])
+{
+ struct data data = { 0, };
+ int res = 0, c;
+ static const struct option long_options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'V' },
+ { "remote", required_argument, NULL, 'r' },
+ { NULL, 0, NULL, 0}
+ };
+
+ setlocale(LC_ALL, "");
+ pw_init(&argc, &argv);
+
+ setlinebuf(stdout);
+
+ while ((c = getopt_long(argc, argv, "hVr:", long_options, NULL)) != -1) {
+ switch (c) {
+ case 'h':
+ show_help(argv[0], false);
+ return 0;
+ case 'V':
+ printf("%s\n"
+ "Compiled with libpipewire %s\n"
+ "Linked with libpipewire %s\n",
+ argv[0],
+ pw_get_headers_version(),
+ pw_get_library_version());
+ return 0;
+ case 'r':
+ data.opt_remote = optarg;
+ break;
+ default:
+ show_help(argv[0], true);
+ return -1;
+ }
+ }
+
+ if (optind < argc) {
+ res = dump_file(argv[optind]);
+ } else {
+ res = dump_filter(&data);
+ }
+ pw_deinit();
+ return res;
+}