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/* GStreamer unit test for the filesink element
 *
 * Copyright (C) 2006 Thomas Vander Stichele <thomas at apestaart dot org>
 * Copyright (C) 2007 Tim-Philipp Müller <tim centricular net>
 *
 * 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., 51 Franklin St, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdio.h>

#include <glib.h>
#include <glib/gstdio.h>

#include <gst/check/gstcheck.h>

static GstPad *mysrcpad;
static gboolean sync_buffers = FALSE;

static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
    GST_PAD_SRC,
    GST_PAD_ALWAYS,
    GST_STATIC_CAPS_ANY);

static GstElement *
setup_filesink (void)
{
  GstElement *filesink;

  GST_DEBUG ("setup_filesink");
  filesink = gst_check_setup_element ("filesink");
  mysrcpad = gst_check_setup_src_pad (filesink, &srctemplate);
  gst_pad_set_active (mysrcpad, TRUE);
  return filesink;
}

static void
cleanup_filesink (GstElement * filesink)
{
  gst_pad_set_active (mysrcpad, FALSE);
  gst_check_teardown_src_pad (filesink);
  gst_check_teardown_element (filesink);
}

#if 0
/* this queries via the element vfunc, which is currently not implemented */
#define CHECK_QUERY_POSITION(filesink,format,position)                  \
    G_STMT_START {                                                       \
      gint64 pos;                                                        \
      fail_unless (gst_element_query_position (filesink, format, &pos)); \
      fail_unless_equals_int (pos, position);                            \
    } G_STMT_END
#else
#define CHECK_QUERY_POSITION(filesink,format,position)                   \
    G_STMT_START {                                                       \
      GstPad *pad;                                                       \
      gint64 pos;                                                        \
      pad = gst_element_get_static_pad (filesink, "sink");               \
      fail_unless (gst_pad_query_position (pad, format, &pos));          \
      fail_unless_equals_int (pos, position);                            \
      gst_object_unref (pad);                                            \
    } G_STMT_END
#endif

#define PUSH_BYTES(num_bytes)                                             \
    G_STMT_START {                                                        \
      GstBuffer *buf = gst_buffer_new_and_alloc(num_bytes);               \
      GRand *rand = g_rand_new_with_seed (num_bytes);                     \
      GstMapInfo info;                                                    \
      guint i;                                                            \
      if (sync_buffers)                                                   \
        GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);            \
      fail_unless (gst_buffer_map (buf, &info, GST_MAP_WRITE));           \
      for (i = 0; i < num_bytes; ++i)                                     \
        ((guint8 *)info.data)[i] = (g_rand_int (rand) >> 24) & 0xff;      \
      gst_buffer_unmap (buf, &info);                                      \
      fail_unless_equals_int (gst_pad_push (mysrcpad, buf), GST_FLOW_OK); \
      g_rand_free (rand);                                                 \
    } G_STMT_END

/* Push Buffer with num_mem_blocks memory block each of size num_bytes*/
#define PUSH_BUFFER_WITH_MULTIPLE_MEM_BLOCKS(num_mem_blocks, num_bytes)      \
    G_STMT_START {                                                           \
      GstBuffer *buf = gst_buffer_new();                                     \
      guint i;                                                               \
      if (sync_buffers)                                                      \
        GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);               \
      for (i = 0; i < num_mem_blocks; ++i){                                  \
        GstMapInfo info;                                                     \
        GstMemory* mem_block = gst_allocator_alloc(NULL,num_bytes,NULL);     \
        GRand *rand = g_rand_new_with_seed (num_bytes);                      \
        guint j;                                                             \
        fail_unless (gst_memory_map (mem_block, &info, GST_MAP_WRITE));      \
        for (j = 0; j < num_bytes; ++j)                                      \
           ((guint8 *)info.data)[j] = (g_rand_int (rand) >> 24) & 0xff;      \
        gst_memory_unmap (mem_block, &info);                                 \
        gst_buffer_append_memory(buf,mem_block);                             \
        g_rand_free (rand);                                                  \
      }                                                                      \
      fail_unless_equals_int (gst_pad_push (mysrcpad, buf), GST_FLOW_OK);    \
    } G_STMT_END

/* Push Buffer List with num_buffers buffers each containing num_mem_blocks
 * memory blocks of size num_bytes */
#define PUSH_BUFFER_LIST_WITH_MULTI_MEM_BLOCKS_BUFFERS(num_buffers, num_mem_blocks, num_bytes) \
    G_STMT_START {                                                             \
      guint i;                                                                 \
      GstBufferList* buf_list = gst_buffer_list_new();                         \
      for(i = 0; i < num_buffers; ++i){                                        \
        GstBuffer *buf = gst_buffer_new();                                     \
        guint j;                                                               \
        if (sync_buffers)                                                      \
          GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);               \
        for (j = 0; j < num_mem_blocks; ++j){                                  \
          GstMapInfo info;                                                     \
          GstMemory* mem_block = gst_allocator_alloc(NULL,num_bytes,NULL);     \
          GRand *rand = g_rand_new_with_seed (num_bytes);                      \
          guint k;                                                             \
          fail_unless (gst_memory_map (mem_block, &info, GST_MAP_WRITE));      \
          for (k = 0; k < num_bytes; ++k)                                      \
            ((guint8 *)info.data)[k] = (g_rand_int (rand) >> 24) & 0xff;       \
          gst_memory_unmap (mem_block, &info);                                 \
          gst_buffer_append_memory(buf,mem_block);                             \
          g_rand_free (rand);                                                  \
        }                                                                      \
        gst_buffer_list_add(buf_list,buf);                                     \
      }                                                                        \
      fail_unless_equals_int (gst_pad_push_list (mysrcpad, buf_list), GST_FLOW_OK); \
    } G_STMT_END

/* Push buffer_list containing num_buffers number of buffers with size
 *   num_bytes bytes
 * Example: PUSH_BUFFER_LIST(2,10) will push the buffer list containing
 *   2 buffers with size 10 bytes each */
#define PUSH_BUFFER_LIST(num_buffers, num_bytes)                          \
    G_STMT_START {                                                        \
      guint i;                                                            \
      GstBufferList* buf_list = gst_buffer_list_new();                    \
      for(i = 0; i < num_buffers; ++i){                                   \
        GstBuffer *buf = gst_buffer_new_and_alloc(num_bytes);             \
        GRand *rand = g_rand_new_with_seed (num_bytes);                   \
        GstMapInfo info;                                                  \
        guint j;                                                          \
        if (sync_buffers)                                                 \
          GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);          \
        fail_unless (gst_buffer_map (buf, &info, GST_MAP_WRITE));         \
        for (j = 0; j < num_bytes; ++j)                                   \
          ((guint8 *)info.data)[j] = (g_rand_int (rand) >> 24) & 0xff;    \
        gst_buffer_unmap (buf, &info);                                    \
        gst_buffer_list_add(buf_list,buf);                                \
        g_rand_free (rand);                                               \
      }                                                                   \
      fail_unless_equals_int (gst_pad_push_list (mysrcpad, buf_list), GST_FLOW_OK); \
    } G_STMT_END

#define CHECK_WRITTEN_BYTES(offset,written,file_size)                      \
    G_STMT_START {                                                        \
      gchar *data = NULL;                                                 \
      gsize len;                                                          \
      fail_unless (g_file_get_contents (tmp_fn, &data, &len, NULL),       \
          "Failed to read in newly-created file '%s'", tmp_fn);           \
      fail_unless_equals_int (len, file_size);                            \
      {                                                                   \
        /* we wrote <written> bytes at position 0 */                      \
        GRand *rand = g_rand_new_with_seed (written);                     \
        guint i;                                                          \
        for (i = 0; i < written; ++i) {                                   \
          guint8 byte_written = *(((guint8 *) data) + offset + i);        \
                                                                          \
          fail_unless_equals_int (byte_written, g_rand_int (rand) >> 24); \
        }                                                                 \
        g_rand_free (rand);                                               \
      }                                                                   \
      g_free (data);                                                      \
    } G_STMT_END

static gchar *
create_temporary_file (void)
{
  const gchar *tmpdir;
  gchar *tmp_fn;
  gint fd;

  tmpdir = g_get_tmp_dir ();
  if (tmpdir == NULL)
    return NULL;

  /* this is just silly, but gcc warns if we try to use tpmnam() */
  tmp_fn = g_build_filename (tmpdir, "gstreamer-filesink-test-XXXXXX", NULL);
  fd = g_mkstemp (tmp_fn);
  if (fd < 0) {
    GST_ERROR ("can't create temp file %s: %s", tmp_fn, g_strerror (errno));
    g_free (tmp_fn);
    return NULL;
  }
  /* don't want the file, just a filename (hence silly, see above) */
  g_close (fd, NULL);
  g_remove (tmp_fn);

  return tmp_fn;
}

/* TODO: we don't check that the data is actually written to the right
 * position after a seek */
GST_START_TEST (test_seeking)
{
  GstElement *filesink;
  gchar *tmp_fn;
  GstSegment segment;

  tmp_fn = create_temporary_file ();
  if (tmp_fn == NULL)
    return;
  filesink = setup_filesink ();

  sync_buffers = TRUE;

  GST_LOG ("using temp file '%s'", tmp_fn);
  g_object_set (filesink, "location", tmp_fn, NULL);

  fail_unless_equals_int (gst_element_set_state (filesink, GST_STATE_PLAYING),
      GST_STATE_CHANGE_ASYNC);

#if 0
  /* Test that filesink is seekable with a file fd */
  /* filesink doesn't implement seekable query at the moment */
  GstQuery *seeking_query;
  gboolean seekable;

  fail_unless ((seeking_query = gst_query_new_seeking (GST_FORMAT_BYTES))
      != NULL);
  fail_unless (gst_element_query (filesink, seeking_query) == TRUE);
  gst_query_parse_seeking (seeking_query, NULL, &seekable, NULL, NULL);
  fail_unless (seekable == TRUE);
  gst_query_unref (seeking_query);
#endif

  fail_unless (gst_pad_push_event (mysrcpad,
          gst_event_new_stream_start ("test")));

  gst_segment_init (&segment, GST_FORMAT_BYTES);
  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_segment (&segment)));

  CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 0);

  /* push buffer with size 0 and NULL data */
  PUSH_BYTES (0);
  CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 0);

  PUSH_BYTES (1);
  CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 1);

  PUSH_BYTES (99);
  CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 100);

  PUSH_BYTES (8800);
  CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 8900);

  /* Push buffer list with 2 buffers each of size 50 bytes */
  PUSH_BUFFER_LIST (2, 50);
  CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 9000);
  /* Push buffer list with 3 buffers each of size 10 bytes */
  PUSH_BUFFER_LIST (3, 10);
  CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 9030);
  /* Check bytes written using push buffer list */
  CHECK_WRITTEN_BYTES (8900, 50, 9030);
  CHECK_WRITTEN_BYTES (8950, 50, 9030);
  CHECK_WRITTEN_BYTES (9000, 10, 9030);
  CHECK_WRITTEN_BYTES (9010, 10, 9030);
  CHECK_WRITTEN_BYTES (9020, 10, 9030);

  /* Push buffer with 2 memory blocks each of size 20 bytes */
  PUSH_BUFFER_WITH_MULTIPLE_MEM_BLOCKS (2, 20);
  CHECK_WRITTEN_BYTES (9030, 20, 9070);
  CHECK_WRITTEN_BYTES (9050, 20, 9070);

  /* Push buffer list with 2 buffers each containing 2 memory blocks each of size 20 bytes */
  PUSH_BUFFER_LIST_WITH_MULTI_MEM_BLOCKS_BUFFERS (2, 2, 20);
  CHECK_WRITTEN_BYTES (9070, 20, 9150);
  CHECK_WRITTEN_BYTES (9090, 20, 9150);
  CHECK_WRITTEN_BYTES (9110, 20, 9150);
  CHECK_WRITTEN_BYTES (9130, 20, 9150);

  segment.start = 8800;
  if (gst_pad_push_event (mysrcpad, gst_event_new_segment (&segment))) {
    GST_LOG ("seek ok");
    /* make sure that new position is reported immediately */
    CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 8800);
    PUSH_BYTES (1);
    CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 8801);
    PUSH_BYTES (9256);
    CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 18057);
  } else {
    GST_INFO ("seeking not supported for tempfile?!");
  }

  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));

  fail_unless_equals_int (gst_element_set_state (filesink, GST_STATE_NULL),
      GST_STATE_CHANGE_SUCCESS);

  /* cleanup */
  cleanup_filesink (filesink);

  CHECK_WRITTEN_BYTES (8801, 9256, 18057);

  sync_buffers = FALSE;

  /* remove file */
  g_remove (tmp_fn);
  g_free (tmp_fn);
}

GST_END_TEST;

GST_START_TEST (test_flush)
{
  GstElement *filesink;
  gchar *tmp_fn;
  GstSegment segment;

  tmp_fn = create_temporary_file ();
  if (tmp_fn == NULL)
    return;
  filesink = setup_filesink ();

  sync_buffers = FALSE;

  GST_LOG ("using temp file '%s'", tmp_fn);
  g_object_set (filesink, "location", tmp_fn, NULL);

  fail_unless_equals_int (gst_element_set_state (filesink, GST_STATE_PLAYING),
      GST_STATE_CHANGE_ASYNC);

  fail_unless (gst_pad_push_event (mysrcpad,
          gst_event_new_stream_start ("test")));

  gst_segment_init (&segment, GST_FORMAT_TIME);
  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_segment (&segment)));

  CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 0);

  PUSH_BYTES (8);
  CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 8);

  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_flush_start ()));
  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_flush_stop (TRUE)));
  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_segment (&segment)));

  fail_unless_equals_int (gst_element_set_state (filesink, GST_STATE_PLAYING),
      GST_STATE_CHANGE_ASYNC);

  CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 0);

  PUSH_BYTES (4);
  CHECK_QUERY_POSITION (filesink, GST_FORMAT_BYTES, 4);

  cleanup_filesink (filesink);

  CHECK_WRITTEN_BYTES (0, 4, 4);

  g_remove (tmp_fn);
  g_free (tmp_fn);
}

GST_END_TEST;

GST_START_TEST (test_coverage)
{
  GstElement *filesink;
  gchar *location;
  GstBus *bus;
  GstMessage *message;

  filesink = setup_filesink ();
  bus = gst_bus_new ();

  gst_element_set_bus (filesink, bus);

  g_object_set (filesink, "location", "/i/do/not/exist", NULL);
  g_object_get (filesink, "location", &location, NULL);
  fail_unless_equals_string (location, "/i/do/not/exist");
  g_free (location);

  fail_unless_equals_int (gst_element_set_state (filesink, GST_STATE_PLAYING),
      GST_STATE_CHANGE_FAILURE);

  /* a state change and an error */
  fail_if ((message = gst_bus_pop (bus)) == NULL);
  fail_unless_message_error (message, RESOURCE, OPEN_WRITE);
  gst_message_unref (message);

  g_object_set (filesink, "location", NULL, NULL);
  g_object_get (filesink, "location", &location, NULL);
  fail_if (location);

  /* cleanup */
  gst_element_set_bus (filesink, NULL);
  gst_object_unref (GST_OBJECT (bus));
  cleanup_filesink (filesink);
}

GST_END_TEST;

GST_START_TEST (test_uri_interface)
{
  GstElement *filesink;
  gchar *location;
  GstBus *bus;

  filesink = setup_filesink ();
  bus = gst_bus_new ();

  gst_element_set_bus (filesink, bus);

  g_object_set (G_OBJECT (filesink), "location", "/i/do/not/exist", NULL);
  g_object_get (G_OBJECT (filesink), "location", &location, NULL);
  fail_unless_equals_string (location, "/i/do/not/exist");
  g_free (location);

  location = gst_uri_handler_get_uri (GST_URI_HANDLER (filesink));
  fail_unless_equals_string (location, "file:///i/do/not/exist");
  g_free (location);

  /* should accept file:///foo/bar URIs */
  fail_unless (gst_uri_handler_set_uri (GST_URI_HANDLER (filesink),
          "file:///foo/bar", NULL));
  location = gst_uri_handler_get_uri (GST_URI_HANDLER (filesink));
  fail_unless_equals_string (location, "file:///foo/bar");
  g_free (location);
  g_object_get (G_OBJECT (filesink), "location", &location, NULL);
  fail_unless_equals_string (location, "/foo/bar");
  g_free (location);

  /* should accept file://localhost/foo/bar URIs */
  fail_unless (gst_uri_handler_set_uri (GST_URI_HANDLER (filesink),
          "file://localhost/foo/baz", NULL));
  location = gst_uri_handler_get_uri (GST_URI_HANDLER (filesink));
  fail_unless_equals_string (location, "file:///foo/baz");
  g_free (location);
  g_object_get (G_OBJECT (filesink), "location", &location, NULL);
  fail_unless_equals_string (location, "/foo/baz");
  g_free (location);

  /* should escape non-uri characters for the URI but not for the location */
  g_object_set (G_OBJECT (filesink), "location", "/foo/b?r", NULL);
  g_object_get (G_OBJECT (filesink), "location", &location, NULL);
  fail_unless_equals_string (location, "/foo/b?r");
  g_free (location);
  location = gst_uri_handler_get_uri (GST_URI_HANDLER (filesink));
  fail_unless_equals_string (location, "file:///foo/b%3Fr");
  g_free (location);

  g_object_set (G_OBJECT (filesink), "location", "\".donotexist", NULL);
  g_object_get (G_OBJECT (filesink), "location", &location, NULL);
  fail_unless_equals_string (location, "\".donotexist");
  g_free (location);

  /* should fail with other hostnames */
  fail_if (gst_uri_handler_set_uri (GST_URI_HANDLER (filesink),
          "file://hostname/foo/foo", NULL));

  /* cleanup */
  gst_element_set_bus (filesink, NULL);
  gst_object_unref (GST_OBJECT (bus));
  cleanup_filesink (filesink);
}

GST_END_TEST;

static Suite *
filesink_suite (void)
{
  Suite *s = suite_create ("filesink");
  TCase *tc_chain = tcase_create ("general");

  suite_add_tcase (s, tc_chain);

  tcase_add_test (tc_chain, test_coverage);
  tcase_add_test (tc_chain, test_uri_interface);
  tcase_add_test (tc_chain, test_seeking);
  tcase_add_test (tc_chain, test_flush);

  return s;
}

GST_CHECK_MAIN (filesink);