gstsegment.c

gnash 在pc和嵌入式下开发需要的源码

  fail_unless (result == -1);

  /***************************************
   * Normal segment rate -1.0, offset
   ***************************************/

  /* buffers will arrive from 300 to 100 in a sink, stream time
   * calculation is unaffected by the rate */
  gst_segment_set_newsegment_full (&segment, FALSE, -1.0, 1.0,
      GST_FORMAT_TIME, 100, 300, 0);

  fail_unless (segment.accum == 200);

  /* invalid time gives invalid result */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, -1);
  fail_unless (result == -1);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 100);
  fail_unless (result == 0);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 200);
  fail_unless (result == 100);

  /***********************************************
   * Normal segment rate -1.0, offset, time = 200
   ***********************************************/
  gst_segment_set_newsegment_full (&segment, FALSE, -1.0, 1.0,
      GST_FORMAT_TIME, 100, 300, 200);

  /* invalid time gives invalid result */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, -1);
  fail_unless (result == -1);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 100);
  fail_unless (result == 200);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 200);
  fail_unless (result == 300);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 300);
  fail_unless (result == 400);

  /* outside of the segment */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 400);
  fail_unless (result == -1);
}

GST_END_TEST;

/* mess with the segment structure in the time format */
GST_START_TEST (segment_newsegment_streamtime_applied_rate)
{
  GstSegment segment;
  gint64 result;

  gst_segment_init (&segment, GST_FORMAT_TIME);

  /***********************************************************
   * Normal segment rate 1.0, applied rate -1.0
   * This means the timestamps represents a stream going backwards
   * starting from @time to 0.
   ************************************************************/
  gst_segment_set_newsegment_full (&segment, FALSE, 1.0, -1.0,
      GST_FORMAT_TIME, 0, 200, 200);

  fail_unless (segment.rate == 1.0);
  fail_unless (segment.applied_rate == -1.0);
  fail_unless (segment.format == GST_FORMAT_TIME);
  fail_unless (segment.flags == 0);
  fail_unless (segment.start == 0);
  fail_unless (segment.stop == 200);
  fail_unless (segment.time == 200);
  fail_unless (segment.accum == 0);
  fail_unless (segment.last_stop == 0);
  fail_unless (segment.duration == -1);

  /* invalid time gives invalid result */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, -1);
  fail_unless (result == -1);

  /* we count backwards from 200 */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 0);
  fail_unless (result == 200);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 100);
  fail_unless (result == 100);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 150);
  fail_unless (result == 50);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 200);
  fail_unless (result == 0);

  /* outside of the segment */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 300);
  fail_unless (result == -1);

  /***********************************************************
   * Normal segment rate 1.0, applied rate 2.0
   * This means the timestamps represents a stream at twice the
   * normal rate
   ************************************************************/
  gst_segment_set_newsegment_full (&segment, FALSE, 1.0, 2.0,
      GST_FORMAT_TIME, 0, 200, 0);

  fail_unless (segment.rate == 1.0);
  fail_unless (segment.applied_rate == 2.0);
  fail_unless (segment.format == GST_FORMAT_TIME);
  fail_unless (segment.flags == 0);
  fail_unless (segment.start == 0);
  fail_unless (segment.stop == 200);
  fail_unless (segment.time == 0);
  fail_unless (segment.accum == 200);
  fail_unless (segment.last_stop == 0);
  fail_unless (segment.duration == -1);

  /* invalid time gives invalid result */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, -1);
  fail_unless (result == -1);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 0);
  fail_unless (result == 0);

  /* the stream prepresents a stream going twice as fast, the position 
   * in the segment is therefore scaled by the applied rate */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 100);
  fail_unless (result == 200);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 150);
  fail_unless (result == 300);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 200);
  fail_unless (result == 400);

  /* outside of the segment */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 300);
  fail_unless (result == -1);

  /***********************************************************
   * Normal segment rate 1.0, applied rate -2.0
   * This means the timestamps represents a stream at twice the
   * reverse rate
   ************************************************************/
  gst_segment_set_newsegment_full (&segment, FALSE, 1.0, -2.0,
      GST_FORMAT_TIME, 0, 200, 400);

  fail_unless (segment.rate == 1.0);
  fail_unless (segment.applied_rate == -2.0);
  fail_unless (segment.format == GST_FORMAT_TIME);
  fail_unless (segment.flags == 0);
  fail_unless (segment.start == 0);
  fail_unless (segment.stop == 200);
  fail_unless (segment.time == 400);
  /* previous segment lasted 200, rate of 2.0 was already applied */
  fail_unless (segment.accum == 400);
  fail_unless (segment.last_stop == 0);
  fail_unless (segment.duration == -1);

  /* invalid time gives invalid result */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, -1);
  fail_unless (result == -1);

  /* we count backwards from 400 */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 0);
  fail_unless (result == 400);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 100);
  fail_unless (result == 200);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 150);
  fail_unless (result == 100);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 200);
  fail_unless (result == 0);

  /* outside of the segment */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 300);
  fail_unless (result == -1);

  /***********************************************************
   * Normal segment rate 1.0, applied rate -2.0
   * This means the timestamps represents a stream at twice the
   * reverse rate, start time cannot compensate the complete
   * duration of the segment so we stop at 0
   ************************************************************/
  gst_segment_set_newsegment_full (&segment, FALSE, 1.0, -2.0,
      GST_FORMAT_TIME, 0, 200, 200);

  fail_unless (segment.rate == 1.0);
  fail_unless (segment.applied_rate == -2.0);
  fail_unless (segment.format == GST_FORMAT_TIME);
  fail_unless (segment.flags == 0);
  fail_unless (segment.start == 0);
  fail_unless (segment.stop == 200);
  fail_unless (segment.time == 200);
  fail_unless (segment.accum == 600);
  fail_unless (segment.last_stop == 0);
  fail_unless (segment.duration == -1);

  /* invalid time gives invalid result */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, -1);
  fail_unless (result == -1);

  /* we count backwards from 200 */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 0);
  fail_unless (result == 200);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 100);
  fail_unless (result == 0);

  /* clamp at 0 */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 150);
  fail_unless (result == 0);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 200);
  fail_unless (result == 0);

  /* outside of the segment */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 300);
  fail_unless (result == -1);
}

GST_END_TEST;

/* mess with the segment structure in the time format */
GST_START_TEST (segment_newsegment_streamtime_applied_rate_rate)
{
  GstSegment segment;
  gint64 result;

  gst_segment_init (&segment, GST_FORMAT_TIME);

  /***********************************************************
   * Segment rate 2.0, applied rate 2.0
   * this means we have a double speed stream that we should
   * speed up by a factor of 2.0 some more. the resulting
   * stream will be played at four times the speed. 
   ************************************************************/
  gst_segment_set_newsegment_full (&segment, FALSE, 2.0, 2.0,
      GST_FORMAT_TIME, 0, 200, 0);

  fail_unless (segment.rate == 2.0);
  fail_unless (segment.applied_rate == 2.0);
  fail_unless (segment.format == GST_FORMAT_TIME);
  fail_unless (segment.flags == 0);
  fail_unless (segment.start == 0);
  fail_unless (segment.stop == 200);
  fail_unless (segment.time == 0);
  fail_unless (segment.accum == 0);
  fail_unless (segment.last_stop == 0);
  fail_unless (segment.duration == -1);

  /* invalid time gives invalid result */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, -1);
  fail_unless (result == -1);

  /* only applied rate affects our calculation of the stream time */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 0);
  fail_unless (result == 0);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 100);
  fail_unless (result == 200);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 150);
  fail_unless (result == 300);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 200);
  fail_unless (result == 400);

  /* outside of the segment */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 300);
  fail_unless (result == -1);

  /***********************************************************
   * Segment rate 2.0, applied rate -1.0
   * this means we have a reverse stream that we should
   * speed up by a factor of 2.0
   ************************************************************/
  gst_segment_set_newsegment_full (&segment, FALSE, 2.0, -1.0,
      GST_FORMAT_TIME, 0, 200, 200);

  fail_unless (segment.rate == 2.0);
  fail_unless (segment.applied_rate == -1.0);
  fail_unless (segment.format == GST_FORMAT_TIME);
  fail_unless (segment.flags == 0);
  fail_unless (segment.start == 0);
  fail_unless (segment.stop == 200);
  fail_unless (segment.time == 200);
  /* previous segment lasted 100 */
  fail_unless (segment.accum == 100);
  fail_unless (segment.last_stop == 0);
  fail_unless (segment.duration == -1);

  /* invalid time gives invalid result */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, -1);
  fail_unless (result == -1);

  /* only applied rate affects our calculation of the stream time */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 0);
  fail_unless (result == 200);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 100);
  fail_unless (result == 100);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 150);
  fail_unless (result == 50);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 200);
  fail_unless (result == 0);

  /* outside of the segment */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 300);
  fail_unless (result == -1);

  /***********************************************************
   * Segment rate -1.0, applied rate -1.0
   * this means we have a reverse stream that we should
   * reverse to get the normal stream again.
   ************************************************************/
  gst_segment_set_newsegment_full (&segment, FALSE, -1.0, -1.0,
      GST_FORMAT_TIME, 0, 200, 200);

  fail_unless (segment.rate == -1.0);
  fail_unless (segment.applied_rate == -1.0);
  fail_unless (segment.format == GST_FORMAT_TIME);
  fail_unless (segment.flags == 0);
  fail_unless (segment.start == 0);
  fail_unless (segment.stop == 200);
  fail_unless (segment.time == 200);
  /* accumulated 100 of previous segment to make 200 */
  fail_unless (segment.accum == 200);
  fail_unless (segment.last_stop == 0);
  fail_unless (segment.duration == -1);

  /* invalid time gives invalid result */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, -1);
  fail_unless (result == -1);

  /* only applied rate affects our calculation of the stream time */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 0);
  fail_unless (result == 200);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 100);
  fail_unless (result == 100);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 150);
  fail_unless (result == 50);

  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 200);
  fail_unless (result == 0);

  /* outside of the segment */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 300);
  fail_unless (result == -1);

  /***********************************************************
   * Segment rate -1.0, applied rate -1.0
   * this means we have a reverse stream that we should
   * reverse to get the normal stream again.
   ************************************************************/
  gst_segment_set_newsegment_full (&segment, FALSE, -1.0, 2.0,
      GST_FORMAT_TIME, 0, 200, 0);

  fail_unless (segment.rate == -1.0);
  fail_unless (segment.applied_rate == 2.0);
  fail_unless (segment.format == GST_FORMAT_TIME);
  fail_unless (segment.flags == 0);
  fail_unless (segment.start == 0);
  fail_unless (segment.stop == 200);
  fail_unless (segment.time == 0);
  fail_unless (segment.accum == 400);
  fail_unless (segment.last_stop == 0);
  fail_unless (segment.duration == -1);

  /* invalid time gives invalid result */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, -1);
  fail_unless (result == -1);

  /* only applied rate affects our calculation of the stream time */
  result = gst_segment_to_stream_time (&segment, GST_FORMAT_TIME, 0);
  fail_unless (result == 0);