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authorMax Kellermann <max@duempel.org>2013-01-30 21:27:37 +0100
committerMax Kellermann <max@duempel.org>2013-01-30 21:39:43 +0100
commitcfeeb7af2e398b94db6db84c208976588d8cfcda (patch)
tree19635e8dc5fdcd54ff838def22e74de5ffffb13e /test/run_convert.cxx
parentac887d3afb9aba509ddf2da034e089e86b761c3d (diff)
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test/run_encoder, ...: convert to C++
Diffstat (limited to 'test/run_convert.cxx')
-rw-r--r--test/run_convert.cxx127
1 files changed, 127 insertions, 0 deletions
diff --git a/test/run_convert.cxx b/test/run_convert.cxx
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+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * This program is a command line interface to MPD's PCM conversion
+ * library (pcm_convert.c).
+ *
+ */
+
+#include "config.h"
+#include "audio_parser.h"
+#include "audio_format.h"
+#include "pcm_convert.h"
+#include "conf.h"
+#include "util/fifo_buffer.h"
+#include "stdbin.h"
+
+#include <glib.h>
+
+#include <assert.h>
+#include <stddef.h>
+#include <unistd.h>
+
+static void
+my_log_func(const gchar *log_domain, G_GNUC_UNUSED GLogLevelFlags log_level,
+ const gchar *message, G_GNUC_UNUSED gpointer user_data)
+{
+ if (log_domain != NULL)
+ g_printerr("%s: %s\n", log_domain, message);
+ else
+ g_printerr("%s\n", message);
+}
+
+const char *
+config_get_string(gcc_unused enum ConfigOption option,
+ const char *default_value)
+{
+ return default_value;
+}
+
+int main(int argc, char **argv)
+{
+ GError *error = NULL;
+ struct audio_format in_audio_format, out_audio_format;
+ struct pcm_convert_state state;
+ const void *output;
+ ssize_t nbytes;
+ size_t length;
+
+ if (argc != 3) {
+ g_printerr("Usage: run_convert IN_FORMAT OUT_FORMAT <IN >OUT\n");
+ return 1;
+ }
+
+ g_log_set_default_handler(my_log_func, NULL);
+
+ if (!audio_format_parse(&in_audio_format, argv[1],
+ false, &error)) {
+ g_printerr("Failed to parse audio format: %s\n",
+ error->message);
+ return 1;
+ }
+
+ struct audio_format out_audio_format_mask;
+ if (!audio_format_parse(&out_audio_format_mask, argv[2],
+ true, &error)) {
+ g_printerr("Failed to parse audio format: %s\n",
+ error->message);
+ return 1;
+ }
+
+ out_audio_format = in_audio_format;
+ audio_format_mask_apply(&out_audio_format, &out_audio_format_mask);
+
+ const size_t in_frame_size = audio_format_frame_size(&in_audio_format);
+
+ pcm_convert_init(&state);
+
+ struct fifo_buffer *buffer = fifo_buffer_new(4096);
+
+ while (true) {
+ void *p = fifo_buffer_write(buffer, &length);
+ assert(p != NULL);
+
+ nbytes = read(0, p, length);
+ if (nbytes <= 0)
+ break;
+
+ fifo_buffer_append(buffer, nbytes);
+
+ const void *src = fifo_buffer_read(buffer, &length);
+ assert(src != NULL);
+
+ length -= length % in_frame_size;
+ if (length == 0)
+ continue;
+
+ fifo_buffer_consume(buffer, length);
+
+ output = pcm_convert(&state, &in_audio_format, src, length,
+ &out_audio_format, &length, &error);
+ if (output == NULL) {
+ g_printerr("Failed to convert: %s\n", error->message);
+ return 2;
+ }
+
+ G_GNUC_UNUSED ssize_t ignored = write(1, output, length);
+ }
+
+ pcm_convert_deinit(&state);
+}