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authorSebastian Dröge <sebastian.droege@collabora.co.uk>2009-02-24 16:33:51 +0100
committerSebastian Dröge <sebastian.droege@collabora.co.uk>2009-02-24 16:33:51 +0100
commitf0ae68d9440e90711c7b547f03d7165357b9c4ac (patch)
treed77797c994b5f7457b1dd3b802f08f783c8ce0e5 /tests/examples/stats/mp2ogg.c
parentda040c2a3529801e9b7c239afb698379ede89087 (diff)
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Move examples directory to tests/examples as in every other GStreamer module
Diffstat (limited to 'tests/examples/stats/mp2ogg.c')
-rw-r--r--tests/examples/stats/mp2ogg.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/tests/examples/stats/mp2ogg.c b/tests/examples/stats/mp2ogg.c
new file mode 100644
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--- /dev/null
+++ b/tests/examples/stats/mp2ogg.c
@@ -0,0 +1,102 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <gst/gst.h>
+
+/* This example app demonstartes the use of pad query and convert to
+ * get useful statistics about a plugin. In this case we monitor the
+ * compression status of mpeg audio to ogg vorbis transcoding.
+ */
+
+gint
+main (gint argc, gchar * argv[])
+{
+ GstElement *pipeline;
+ GError *error = NULL;
+ gchar *description;
+ GstElement *encoder, *decoder;
+ GstPad *dec_sink, *enc_src;
+
+ gst_init (&argc, &argv);
+
+ if (argc < 3) {
+ g_print ("usage: %s <inputfile> <outputfile>\n", argv[0]);
+ return -1;
+ }
+
+ description = g_strdup_printf ("filesrc location=\"%s\" ! mad name=decoder ! "
+ "vorbisenc name=encoder ! filesink location=\"%s\"", argv[1], argv[2]);
+
+ pipeline = GST_ELEMENT (gst_parse_launch (description, &error));
+ if (!pipeline) {
+ if (error)
+ g_print ("ERROR: pipeline could not be constructed: %s\n",
+ error->message);
+ else
+ g_print ("ERROR: pipeline could not be constructed\n");
+ return -1;
+ }
+
+ decoder = gst_bin_get_by_name (GST_BIN (pipeline), "decoder");
+ encoder = gst_bin_get_by_name (GST_BIN (pipeline), "encoder");
+
+ dec_sink = gst_element_get_pad (decoder, "sink");
+ enc_src = gst_element_get_pad (encoder, "src");
+
+ if (gst_element_set_state (pipeline,
+ GST_STATE_PLAYING) != GST_STATE_CHANGE_SUCCESS) {
+ g_print ("pipeline doesn't want to play\n");
+ return -1;
+ }
+
+ while (gst_bin_iterate (GST_BIN (pipeline))) {
+ gint64 position;
+ gint64 duration;
+ gint64 bitrate_enc, bitrate_dec;
+ GstFormat format;
+
+ format = GST_FORMAT_TIME;
+ /* get the position */
+ gst_pad_query (enc_src, GST_QUERY_POSITION, &format, &position);
+
+ /* get the total duration */
+ gst_pad_query (enc_src, GST_QUERY_TOTAL, &format, &duration);
+
+ format = GST_FORMAT_BYTES;
+ /* see how many bytes are genereated per 8 seconds (== bitrate) */
+ gst_pad_convert (enc_src, GST_FORMAT_TIME, 8 * GST_SECOND,
+ &format, &bitrate_enc);
+
+ gst_pad_convert (dec_sink, GST_FORMAT_TIME, 8 * GST_SECOND,
+ &format, &bitrate_dec);
+
+ g_print ("[%2dm %.2ds] of [%2dm %.2ds], "
+ "src avg bitrate: %" G_GINT64_FORMAT ", dest avg birate: %"
+ G_GINT64_FORMAT ", ratio [%02.2f] \r",
+ (gint) (position / (GST_SECOND * 60)),
+ (gint) (position / (GST_SECOND)) % 60,
+ (gint) (duration / (GST_SECOND * 60)),
+ (gint) (duration / (GST_SECOND)) % 60, bitrate_dec, bitrate_enc,
+ (gfloat) bitrate_dec / bitrate_enc);
+ }
+
+ g_print ("\n");
+
+ return 0;
+}