qtmux.c 26.2 KB
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/* GStreamer
 *
 * unit test for qtmux
 *
 * Copyright (C) <2008> Mark Nauwelaerts <mnauw@users.sf.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., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

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#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <gst/check/gstcheck.h>
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#include <gst/pbutils/encoding-profile.h>
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/* For ease of programming we use globals to keep refs for our floating
 * src and sink pads we create; otherwise we always have to do get_pad,
 * get_peer, and then remove references in every test function */
static GstPad *mysrcpad, *mysinkpad;

#define AUDIO_CAPS_STRING "audio/mpeg, " \
                        "mpegversion = (int) 1, " \
                        "layer = (int) 3, " \
                        "channels = (int) 2, " \
                        "rate = (int) 48000"
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#define AUDIO_AAC_CAPS_STRING "audio/mpeg, " \
                            "mpegversion=(int)4, " \
                            "channels=(int)1, " \
                            "rate=(int)44100, " \
                            "stream-format=(string)raw, " \
                            "level=(string)2, " \
                            "base-profile=(string)lc, " \
                            "profile=(string)lc, " \
                            "codec_data=(buffer)1208"

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#define VIDEO_CAPS_STRING "video/mpeg, " \
                           "mpegversion = (int) 4, " \
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                           "systemstream = (boolean) false, " \
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                           "width = (int) 384, " \
                           "height = (int) 288, " \
                           "framerate = (fraction) 25/1"

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#define VIDEO_CAPS_H264_STRING "video/x-h264, " \
                               "width=(int)320, " \
                               "height=(int)240, " \
                               "framerate=(fraction)30/1, " \
                               "pixel-aspect-ratio=(fraction)1/1, " \
                               "codec_data=(buffer)01640014ffe1001867640014a" \
                                   "cd94141fb0110000003001773594000f14299600" \
                                   "1000568ebecb22c, " \
                               "stream-format=(string)avc, " \
                               "alignment=(string)au, " \
                               "level=(string)2, " \
                               "profile=(string)high"

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static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
    GST_PAD_SINK,
    GST_PAD_ALWAYS,
    GST_STATIC_CAPS ("video/quicktime"));
static GstStaticPadTemplate srcvideotemplate = GST_STATIC_PAD_TEMPLATE ("src",
    GST_PAD_SRC,
    GST_PAD_ALWAYS,
    GST_STATIC_CAPS (VIDEO_CAPS_STRING));

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static GstStaticPadTemplate srcvideoh264template =
GST_STATIC_PAD_TEMPLATE ("src",
    GST_PAD_SRC,
    GST_PAD_ALWAYS,
    GST_STATIC_CAPS (VIDEO_CAPS_H264_STRING));

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static GstStaticPadTemplate srcaudiotemplate = GST_STATIC_PAD_TEMPLATE ("src",
    GST_PAD_SRC,
    GST_PAD_ALWAYS,
    GST_STATIC_CAPS (AUDIO_CAPS_STRING));

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static GstStaticPadTemplate srcaudioaactemplate =
GST_STATIC_PAD_TEMPLATE ("src",
    GST_PAD_SRC,
    GST_PAD_ALWAYS,
    GST_STATIC_CAPS (AUDIO_AAC_CAPS_STRING));
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/* setup and teardown needs some special handling for muxer */
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static GstPad *
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setup_src_pad (GstElement * element,
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    GstStaticPadTemplate * template, GstCaps * caps, const gchar * sinkname)
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{
  GstPad *srcpad, *sinkpad;

  GST_DEBUG_OBJECT (element, "setting up sending pad");
  /* sending pad */
  srcpad = gst_pad_new_from_static_template (template, "src");
  fail_if (srcpad == NULL, "Could not create a srcpad");
  ASSERT_OBJECT_REFCOUNT (srcpad, "srcpad", 1);

  if (!(sinkpad = gst_element_get_static_pad (element, sinkname)))
    sinkpad = gst_element_get_request_pad (element, sinkname);
  fail_if (sinkpad == NULL, "Could not get sink pad from %s",
      GST_ELEMENT_NAME (element));
  /* references are owned by: 1) us, 2) qtmux, 3) collect pads */
  ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 3);
  if (caps)
    fail_unless (gst_pad_set_caps (srcpad, caps));
  fail_unless (gst_pad_link (srcpad, sinkpad) == GST_PAD_LINK_OK,
      "Could not link source and %s sink pads", GST_ELEMENT_NAME (element));
  gst_object_unref (sinkpad);   /* because we got it higher up */

  /* references are owned by: 1) qtmux, 2) collect pads */
  ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 2);

  return srcpad;
}

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static void
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teardown_src_pad (GstPad * srcpad)
{
  GstPad *sinkpad;

  /* clean up floating src pad */
  sinkpad = gst_pad_get_peer (srcpad);
  fail_if (sinkpad == NULL);
  /* pad refs held by 1) qtmux 2) collectpads and 3) us (through _get_peer) */
  ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 3);

  gst_pad_unlink (srcpad, sinkpad);

  /* after unlinking, pad refs still held by
   * 1) qtmux and 2) collectpads and 3) us (through _get_peer) */
  ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 3);
  gst_object_unref (sinkpad);
  /* one more ref is held by element itself */

  /* pad refs held by creator */
  ASSERT_OBJECT_REFCOUNT (srcpad, "srcpad", 1);
  gst_object_unref (srcpad);
}

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static GstElement *
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setup_qtmux (GstStaticPadTemplate * srctemplate, const gchar * sinkname)
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{
  GstElement *qtmux;

  GST_DEBUG ("setup_qtmux");
  qtmux = gst_check_setup_element ("qtmux");
  mysrcpad = setup_src_pad (qtmux, srctemplate, NULL, sinkname);
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  mysinkpad = gst_check_setup_sink_pad (qtmux, &sinktemplate);
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  gst_pad_set_active (mysrcpad, TRUE);
  gst_pad_set_active (mysinkpad, TRUE);

  return qtmux;
}

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static void
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cleanup_qtmux (GstElement * qtmux, const gchar * sinkname)
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{
  GST_DEBUG ("cleanup_qtmux");
  gst_element_set_state (qtmux, GST_STATE_NULL);

  gst_pad_set_active (mysrcpad, FALSE);
  gst_pad_set_active (mysinkpad, FALSE);
  teardown_src_pad (mysrcpad);
  gst_check_teardown_sink_pad (qtmux);
  gst_check_teardown_element (qtmux);
}

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static void
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check_qtmux_pad (GstStaticPadTemplate * srctemplate, const gchar * sinkname,
    guint32 dts_method)
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{
  GstElement *qtmux;
  GstBuffer *inbuffer, *outbuffer;
  GstCaps *caps;
  int num_buffers;
  int i;
  guint8 data0[12] = "\000\000\000\024ftypqt  ";
  guint8 data1[8] = "\000\000\000\001mdat";
  guint8 data2[4] = "moov";

  qtmux = setup_qtmux (srctemplate, sinkname);
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  g_object_set (qtmux, "dts-method", dts_method, NULL);
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  fail_unless (gst_element_set_state (qtmux,
          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
      "could not set to playing");

  inbuffer = gst_buffer_new_and_alloc (1);
  caps = gst_caps_copy (gst_pad_get_pad_template_caps (mysrcpad));
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  gst_pad_set_caps (mysrcpad, caps);
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  gst_caps_unref (caps);
  GST_BUFFER_TIMESTAMP (inbuffer) = 0;
  GST_BUFFER_DURATION (inbuffer) = 40 * GST_MSECOND;
  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
  fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);

  /* send eos to have moov written */
  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()) == TRUE);

  num_buffers = g_list_length (buffers);
  /* at least expect ftyp, mdat header, buffer chunk and moov */
  fail_unless (num_buffers >= 4);

  for (i = 0; i < num_buffers; ++i) {
    outbuffer = GST_BUFFER (buffers->data);
    fail_if (outbuffer == NULL);
    buffers = g_list_remove (buffers, outbuffer);

    switch (i) {
      case 0:
      {
        /* ftyp header */
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        fail_unless (gst_buffer_get_size (outbuffer) >= 20);
        fail_unless (gst_buffer_memcmp (outbuffer, 0, data0,
                sizeof (data0)) == 0);
        fail_unless (gst_buffer_memcmp (outbuffer, 16, data0 + 8, 4) == 0);
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        break;
      }
      case 1:                  /* mdat header */
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        fail_unless (gst_buffer_get_size (outbuffer) == 16);
        fail_unless (gst_buffer_memcmp (outbuffer, 0, data1, sizeof (data1))
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            == 0);
        break;
      case 2:                  /* buffer we put in */
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        fail_unless (gst_buffer_get_size (outbuffer) == 1);
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        break;
      case 3:                  /* moov */
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        fail_unless (gst_buffer_get_size (outbuffer) > 8);
        fail_unless (gst_buffer_memcmp (outbuffer, 4, data2,
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                sizeof (data2)) == 0);
        break;
      default:
        break;
    }

    ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);
    gst_buffer_unref (outbuffer);
    outbuffer = NULL;
  }

  g_list_free (buffers);
  buffers = NULL;

  cleanup_qtmux (qtmux, sinkname);
}

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static void
check_qtmux_pad_fragmented (GstStaticPadTemplate * srctemplate,
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    const gchar * sinkname, guint32 dts_method, gboolean streamable)
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{
  GstElement *qtmux;
  GstBuffer *inbuffer, *outbuffer;
  GstCaps *caps;
  int num_buffers;
  int i;
  guint8 data0[12] = "\000\000\000\024ftypqt  ";
  guint8 data1[4] = "mdat";
  guint8 data2[4] = "moov";
  guint8 data3[4] = "moof";
  guint8 data4[4] = "mfra";

  qtmux = setup_qtmux (srctemplate, sinkname);
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  g_object_set (qtmux, "dts-method", dts_method, NULL);
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  g_object_set (qtmux, "fragment-duration", 2000, NULL);
  g_object_set (qtmux, "streamable", streamable, NULL);
  fail_unless (gst_element_set_state (qtmux,
          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
      "could not set to playing");

  inbuffer = gst_buffer_new_and_alloc (1);
  caps = gst_caps_copy (gst_pad_get_pad_template_caps (mysrcpad));
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  gst_pad_set_caps (mysrcpad, caps);
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  gst_caps_unref (caps);
  GST_BUFFER_TIMESTAMP (inbuffer) = 0;
  GST_BUFFER_DURATION (inbuffer) = 40 * GST_MSECOND;
  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
  fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);

  /* send eos to have all written */
  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()) == TRUE);

  num_buffers = g_list_length (buffers);
  /* at least expect ftyp, moov, moof, mdat header, buffer chunk
   * and optionally mfra */
  fail_unless (num_buffers >= 5);

  for (i = 0; i < num_buffers; ++i) {
    outbuffer = GST_BUFFER (buffers->data);
    fail_if (outbuffer == NULL);
    buffers = g_list_remove (buffers, outbuffer);

    switch (i) {
      case 0:
      {
        /* ftyp header */
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        fail_unless (gst_buffer_get_size (outbuffer) >= 20);
        fail_unless (gst_buffer_memcmp (outbuffer, 0, data0,
                sizeof (data0)) == 0);
        fail_unless (gst_buffer_memcmp (outbuffer, 16, data0 + 8, 4) == 0);
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        break;
      }
      case 1:                  /* moov */
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        fail_unless (gst_buffer_get_size (outbuffer) > 8);
        fail_unless (gst_buffer_memcmp (outbuffer, 4, data2,
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                sizeof (data2)) == 0);
        break;
      case 2:                  /* moof */
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        fail_unless (gst_buffer_get_size (outbuffer) > 8);
        fail_unless (gst_buffer_memcmp (outbuffer, 4, data3,
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                sizeof (data3)) == 0);
        break;
      case 3:                  /* mdat header */
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        fail_unless (gst_buffer_get_size (outbuffer) == 8);
        fail_unless (gst_buffer_memcmp (outbuffer, 4, data1,
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                sizeof (data1)) == 0);
        break;
      case 4:                  /* buffer we put in */
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        fail_unless (gst_buffer_get_size (outbuffer) == 1);
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        break;
      case 5:                  /* mfra */
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        fail_unless (gst_buffer_get_size (outbuffer) > 8);
        fail_unless (gst_buffer_memcmp (outbuffer, 4, data4,
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                sizeof (data4)) == 0);
        break;
      default:
        break;
    }

    ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);
    gst_buffer_unref (outbuffer);
    outbuffer = NULL;
  }

  g_list_free (buffers);
  buffers = NULL;

  cleanup_qtmux (qtmux, sinkname);
}

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/* dts-method dd */
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GST_START_TEST (test_video_pad_dd)
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{
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  check_qtmux_pad (&srcvideotemplate, "video_%u", 0);
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}

GST_END_TEST;

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GST_START_TEST (test_audio_pad_dd)
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{
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  check_qtmux_pad (&srcaudiotemplate, "audio_%u", 0);
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}

GST_END_TEST;


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GST_START_TEST (test_video_pad_frag_dd)
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{
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  check_qtmux_pad_fragmented (&srcvideotemplate, "video_%u", 0, FALSE);
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}

GST_END_TEST;

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GST_START_TEST (test_audio_pad_frag_dd)
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{
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  check_qtmux_pad_fragmented (&srcaudiotemplate, "audio_%u", 0, FALSE);
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}

GST_END_TEST;


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GST_START_TEST (test_video_pad_frag_dd_streamable)
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{
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  check_qtmux_pad_fragmented (&srcvideotemplate, "video_%u", 0, TRUE);
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}

GST_END_TEST;


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GST_START_TEST (test_audio_pad_frag_dd_streamable)
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{
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  check_qtmux_pad_fragmented (&srcaudiotemplate, "audio_%u", 0, TRUE);
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}

GST_END_TEST;

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/* dts-method reorder */

GST_START_TEST (test_video_pad_reorder)
{
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  check_qtmux_pad (&srcvideotemplate, "video_%u", 1);
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}

GST_END_TEST;

GST_START_TEST (test_audio_pad_reorder)
{
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  check_qtmux_pad (&srcaudiotemplate, "audio_%u", 1);
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}

GST_END_TEST;


GST_START_TEST (test_video_pad_frag_reorder)
{
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  check_qtmux_pad_fragmented (&srcvideotemplate, "video_%u", 1, FALSE);
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}

GST_END_TEST;

GST_START_TEST (test_audio_pad_frag_reorder)
{
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  check_qtmux_pad_fragmented (&srcaudiotemplate, "audio_%u", 1, FALSE);
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}

GST_END_TEST;


GST_START_TEST (test_video_pad_frag_reorder_streamable)
{
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  check_qtmux_pad_fragmented (&srcvideotemplate, "video_%u", 1, TRUE);
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}

GST_END_TEST;


GST_START_TEST (test_audio_pad_frag_reorder_streamable)
{
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  check_qtmux_pad_fragmented (&srcaudiotemplate, "audio_%u", 1, TRUE);
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}

GST_END_TEST;

/* dts-method asc */

GST_START_TEST (test_video_pad_asc)
{
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  check_qtmux_pad (&srcvideotemplate, "video_%u", 2);
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}

GST_END_TEST;

GST_START_TEST (test_audio_pad_asc)
{
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  check_qtmux_pad (&srcaudiotemplate, "audio_%u", 2);
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}

GST_END_TEST;


GST_START_TEST (test_video_pad_frag_asc)
{
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  check_qtmux_pad_fragmented (&srcvideotemplate, "video_%u", 2, FALSE);
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}

GST_END_TEST;

GST_START_TEST (test_audio_pad_frag_asc)
{
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  check_qtmux_pad_fragmented (&srcaudiotemplate, "audio_%u", 2, FALSE);
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}

GST_END_TEST;


GST_START_TEST (test_video_pad_frag_asc_streamable)
{
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  check_qtmux_pad_fragmented (&srcvideotemplate, "video_%u", 2, TRUE);
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}

GST_END_TEST;


GST_START_TEST (test_audio_pad_frag_asc_streamable)
{
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  check_qtmux_pad_fragmented (&srcaudiotemplate, "audio_%u", 2, TRUE);
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}

GST_END_TEST;
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GST_START_TEST (test_reuse)
{
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  GstElement *qtmux = setup_qtmux (&srcvideotemplate, "video_%u");
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  GstBuffer *inbuffer;
  GstCaps *caps;

  gst_element_set_state (qtmux, GST_STATE_PLAYING);
  gst_element_set_state (qtmux, GST_STATE_NULL);
  gst_element_set_state (qtmux, GST_STATE_PLAYING);
  gst_pad_set_active (mysrcpad, TRUE);
  gst_pad_set_active (mysinkpad, TRUE);

  inbuffer = gst_buffer_new_and_alloc (1);
  fail_unless (inbuffer != NULL);
  caps = gst_caps_copy (gst_pad_get_pad_template_caps (mysrcpad));
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  gst_pad_set_caps (mysrcpad, caps);
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  gst_caps_unref (caps);
  GST_BUFFER_TIMESTAMP (inbuffer) = 0;
  GST_BUFFER_DURATION (inbuffer) = 40 * GST_MSECOND;
  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
  fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);

  /* send eos to have all written */
  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()) == TRUE);

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  cleanup_qtmux (qtmux, "video_%u");
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}

GST_END_TEST;

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static GstEncodingContainerProfile *
create_qtmux_profile (const gchar * variant)
{
  GstEncodingContainerProfile *cprof;
  GstCaps *caps;

  if (variant == NULL) {
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    caps = gst_caps_new_empty_simple ("video/quicktime");
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  } else {
    caps = gst_caps_new_simple ("video/quicktime",
        "variant", G_TYPE_STRING, variant, NULL);
  }

  cprof = gst_encoding_container_profile_new ("Name", "blah", caps, NULL);
  gst_caps_unref (caps);

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  caps = gst_caps_new_simple ("audio/x-raw",
      "format", G_TYPE_STRING, "S16BE",
      "channels", G_TYPE_INT, 2, "rate", G_TYPE_INT, 44100, NULL);
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  gst_encoding_container_profile_add_profile (cprof,
      GST_ENCODING_PROFILE (gst_encoding_audio_profile_new (caps, NULL, NULL,
              1)));
  gst_caps_unref (caps);

  return cprof;
}

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GST_START_TEST (test_encodebin_qtmux)
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{
  GstEncodingContainerProfile *cprof;
  GstElement *enc;
  GstPad *pad;

  enc = gst_element_factory_make ("encodebin", NULL);
  if (enc == NULL)
    return;

  /* Make sure encodebin finds a muxer for a profile with a variant field .. */
  cprof = create_qtmux_profile ("apple");
  g_object_set (enc, "profile", cprof, NULL);
  gst_encoding_profile_unref (cprof);

  /* should have created a pad after setting the profile */
  pad = gst_element_get_static_pad (enc, "audio_0");
  fail_unless (pad != NULL);
  gst_object_unref (pad);
  gst_object_unref (enc);

  /* ... and for a profile without a variant field */
  enc = gst_element_factory_make ("encodebin", NULL);
  cprof = create_qtmux_profile (NULL);
  g_object_set (enc, "profile", cprof, NULL);
  gst_encoding_profile_unref (cprof);

  /* should have created a pad after setting the profile */
  pad = gst_element_get_static_pad (enc, "audio_0");
  fail_unless (pad != NULL);
  gst_object_unref (pad);
  gst_object_unref (enc);
}

GST_END_TEST;

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/* Fake mp3 encoder for test */
typedef GstElement TestMp3Enc;
typedef GstElementClass TestMp3EncClass;

static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
    GST_PAD_SRC,
    GST_PAD_ALWAYS,
    GST_STATIC_CAPS ("audio/mpeg, mpegversion=1, layer=[1,3]")
    );

static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
    GST_PAD_SINK,
    GST_PAD_ALWAYS,
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    GST_STATIC_CAPS ("audio/x-raw")
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    );

static GType test_mp3_enc_get_type (void);

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G_DEFINE_TYPE (TestMp3Enc, test_mp3_enc, GST_TYPE_ELEMENT);
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static void
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test_mp3_enc_class_init (TestMp3EncClass * klass)
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{
  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);

  gst_element_class_add_pad_template (element_class,
      gst_static_pad_template_get (&sink_template));
  gst_element_class_add_pad_template (element_class,
      gst_static_pad_template_get (&src_template));

  gst_element_class_set_details_simple (element_class, "MPEG1 Audio Encoder",
      "Codec/Encoder/Audio", "Pretends to encode mp3", "Foo Bar <foo@bar.com>");
}

static void
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test_mp3_enc_init (TestMp3Enc * mp3enc)
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{
  GstPad *pad;

  pad = gst_pad_new_from_static_template (&sink_template, "sink");
  gst_element_add_pad (mp3enc, pad);

  pad = gst_pad_new_from_static_template (&src_template, "src");
  gst_element_add_pad (mp3enc, pad);
}

static gboolean
plugin_init (GstPlugin * plugin)
{
  return gst_element_register (plugin, "testmp3enc", GST_RANK_NONE,
      test_mp3_enc_get_type ());
}

static GstEncodingContainerProfile *
create_mp4mux_profile (void)
{
  GstEncodingContainerProfile *cprof;
  GstCaps *caps;

  caps = gst_caps_new_simple ("video/quicktime",
      "variant", G_TYPE_STRING, "iso", NULL);

  cprof = gst_encoding_container_profile_new ("Name", "blah", caps, NULL);
  gst_caps_unref (caps);

  caps = gst_caps_new_simple ("audio/mpeg", "mpegversion", G_TYPE_INT, 1,
      "layer", G_TYPE_INT, 3, "channels", G_TYPE_INT, 2, "rate", G_TYPE_INT,
      44100, NULL);
  gst_encoding_container_profile_add_profile (cprof,
      GST_ENCODING_PROFILE (gst_encoding_audio_profile_new (caps, NULL, NULL,
              1)));
  gst_caps_unref (caps);

  return cprof;
}

GST_START_TEST (test_encodebin_mp4mux)
{
  GstEncodingContainerProfile *cprof;
  GstPluginFeature *feature;
  GstElement *enc, *mux;
  GstPad *pad;

  /* need a fake mp3 encoder because mp4 only accepts encoded formats */
  gst_plugin_register_static (GST_VERSION_MAJOR, GST_VERSION_MINOR,
      "fakemp3enc", "fakemp3enc", plugin_init, VERSION, "LGPL",
      "gst-plugins-good", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);

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  feature = gst_registry_find_feature (gst_registry_get (), "testmp3enc",
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      GST_TYPE_ELEMENT_FACTORY);
  gst_plugin_feature_set_rank (feature, GST_RANK_PRIMARY + 100);

  enc = gst_element_factory_make ("encodebin", NULL);
  if (enc == NULL)
    return;

  /* Make sure encodebin finds mp4mux even though qtmux outputs a superset */
  cprof = create_mp4mux_profile ();
  g_object_set (enc, "profile", cprof, NULL);
  gst_encoding_profile_unref (cprof);

  /* should have created a pad after setting the profile */
  pad = gst_element_get_static_pad (enc, "audio_0");
  fail_unless (pad != NULL);
  gst_object_unref (pad);

  mux = gst_bin_get_by_interface (GST_BIN (enc), GST_TYPE_TAG_SETTER);
  fail_unless (mux != NULL);
  {
    GstElementFactory *f = gst_element_get_factory (mux);

    /* make sure we got mp4mux for variant=iso */
    GST_INFO ("muxer: %s", G_OBJECT_TYPE_NAME (mux));
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    fail_unless_equals_string (GST_OBJECT_NAME (f), "mp4mux");
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  }
  gst_object_unref (mux);
  gst_object_unref (enc);

  gst_plugin_feature_set_rank (feature, GST_RANK_NONE);
  gst_object_unref (feature);
}

GST_END_TEST;

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static gboolean
extract_tags (const gchar * location, GstTagList ** taglist)
{
  gboolean ret = TRUE;
  GstElement *src;
  GstBus *bus;
  GstElement *pipeline =
      gst_parse_launch ("filesrc name=src ! qtdemux ! fakesink", NULL);

  src = gst_bin_get_by_name (GST_BIN (pipeline), "src");
  g_object_set (src, "location", location, NULL);

  bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
  fail_unless (gst_element_set_state (pipeline, GST_STATE_PLAYING)
      != GST_STATE_CHANGE_FAILURE);

  if (*taglist == NULL) {
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    *taglist = gst_tag_list_new_empty ();
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  }

  while (1) {
    GstMessage *msg = gst_bus_timed_pop_filtered (bus, GST_CLOCK_TIME_NONE,
        GST_MESSAGE_TAG | GST_MESSAGE_ERROR | GST_MESSAGE_EOS);

    if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_EOS) {
      gst_message_unref (msg);
      break;
    } else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) {
      ret = FALSE;
      gst_message_unref (msg);
      break;
    } else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_TAG) {
      GstTagList *tags;

      gst_message_parse_tag (msg, &tags);
      gst_tag_list_insert (*taglist, tags, GST_TAG_MERGE_REPLACE);
      gst_tag_list_free (tags);
    }
    gst_message_unref (msg);
  }

  gst_object_unref (bus);
  gst_element_set_state (pipeline, GST_STATE_NULL);
  gst_object_unref (src);
  gst_object_unref (pipeline);
  return ret;
}

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static void
test_average_bitrate_custom (const gchar * elementname,
    GstStaticPadTemplate * tmpl, const gchar * sinkpadname)
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{
  gchar *location;
  GstElement *qtmux;
  GstElement *filesink;
  GstBuffer *inbuffer;
  GstCaps *caps;
  int i;
  gint bytes[] = { 16, 22, 12 };
  gint64 durations[] = { GST_SECOND * 3, GST_SECOND * 5, GST_SECOND * 2 };
  gint64 total_bytes = 0;
  GstClockTime total_duration = 0;

  location = g_strdup_printf ("%s/%s-%d", g_get_tmp_dir (), "qtmuxtest",
      g_random_int ());
  GST_INFO ("Using location %s for bitrate test", location);
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  qtmux = gst_check_setup_element (elementname);
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  filesink = gst_element_factory_make ("filesink", NULL);
  g_object_set (filesink, "location", location, NULL);
  gst_element_link (qtmux, filesink);
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  mysrcpad = setup_src_pad (qtmux, tmpl, NULL, sinkpadname);
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  fail_unless (mysrcpad != NULL);
  gst_pad_set_active (mysrcpad, TRUE);

  fail_unless (gst_element_set_state (filesink,
          GST_STATE_PLAYING) != GST_STATE_CHANGE_FAILURE,
      "could not set filesink to playing");
  fail_unless (gst_element_set_state (qtmux,
          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
      "could not set to playing");

  for (i = 0; i < 3; i++) {
    inbuffer = gst_buffer_new_and_alloc (bytes[i]);
    caps = gst_caps_copy (gst_pad_get_pad_template_caps (mysrcpad));
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    gst_pad_set_caps (mysrcpad, caps);
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    gst_caps_unref (caps);
    GST_BUFFER_TIMESTAMP (inbuffer) = total_duration;
    GST_BUFFER_DURATION (inbuffer) = (GstClockTime) durations[i];
    ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

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    total_bytes += gst_buffer_get_size (inbuffer);
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    total_duration += GST_BUFFER_DURATION (inbuffer);
    fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
  }

  /* send eos to have moov written */
  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()) == TRUE);

  gst_element_set_state (qtmux, GST_STATE_NULL);
  gst_element_set_state (filesink, GST_STATE_NULL);

  gst_pad_set_active (mysrcpad, FALSE);
  teardown_src_pad (mysrcpad);
  gst_object_unref (filesink);
  gst_check_teardown_element (qtmux);

  /* check the bitrate tag */
  {
    GstTagList *taglist = NULL;
    guint bitrate = 0;
    guint expected;

    fail_unless (extract_tags (location, &taglist));

    fail_unless (gst_tag_list_get_uint (taglist, GST_TAG_BITRATE, &bitrate));

    expected =
        (guint) gst_util_uint64_scale_round ((guint64) total_bytes,
        (guint64) 8 * GST_SECOND, (guint64) total_duration);
    fail_unless (bitrate == expected);
  }
}

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GST_START_TEST (test_average_bitrate)
{
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  test_average_bitrate_custom ("mp4mux", &srcaudioaactemplate, "audio_%u");
  test_average_bitrate_custom ("mp4mux", &srcvideoh264template, "video_%u");
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  test_average_bitrate_custom ("qtmux", &srcaudioaactemplate, "audio_%u");
  test_average_bitrate_custom ("qtmux", &srcvideoh264template, "video_%u");
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}

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GST_END_TEST;


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

  suite_add_tcase (s, tc_chain);
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  tcase_add_test (tc_chain, test_video_pad_dd);
  tcase_add_test (tc_chain, test_audio_pad_dd);
  tcase_add_test (tc_chain, test_video_pad_frag_dd);
  tcase_add_test (tc_chain, test_audio_pad_frag_dd);
  tcase_add_test (tc_chain, test_video_pad_frag_dd_streamable);
  tcase_add_test (tc_chain, test_audio_pad_frag_dd_streamable);

  tcase_add_test (tc_chain, test_video_pad_reorder);
  tcase_add_test (tc_chain, test_audio_pad_reorder);
  tcase_add_test (tc_chain, test_video_pad_frag_reorder);
  tcase_add_test (tc_chain, test_audio_pad_frag_reorder);
  tcase_add_test (tc_chain, test_video_pad_frag_reorder_streamable);
  tcase_add_test (tc_chain, test_audio_pad_frag_reorder_streamable);

  tcase_add_test (tc_chain, test_video_pad_asc);
  tcase_add_test (tc_chain, test_audio_pad_asc);
  tcase_add_test (tc_chain, test_video_pad_frag_asc);
  tcase_add_test (tc_chain, test_audio_pad_frag_asc);
  tcase_add_test (tc_chain, test_video_pad_frag_asc_streamable);
  tcase_add_test (tc_chain, test_audio_pad_frag_asc_streamable);

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  tcase_add_test (tc_chain, test_average_bitrate);

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  tcase_add_test (tc_chain, test_reuse);
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  tcase_add_test (tc_chain, test_encodebin_qtmux);
  tcase_add_test (tc_chain, test_encodebin_mp4mux);
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  return s;
}

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GST_CHECK_MAIN (qtmux)