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334 lines
11 KiB
C
334 lines
11 KiB
C
/* GStreamer
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*
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* unit test for theoraenc
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*
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* Copyright (C) 2006 Andy Wingo <wingo at pobox.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/check/gstcheck.h>
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#include <gst/check/gstbufferstraw.h>
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#include <theora/theora.h>
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#ifndef GST_DISABLE_PARSE
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#define TIMESTAMP_OFFSET G_GINT64_CONSTANT(3249870963)
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#define FRAMERATE 10
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/* I know all of these have a shift of 6 bits */
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#define GRANULEPOS_SHIFT 6
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#define check_buffer_is_header(buffer,is_header) \
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fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, \
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GST_BUFFER_FLAG_HEADER) == is_header, \
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"GST_BUFFER_IN_CAPS is set to %d but expected %d", \
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GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_HEADER), is_header)
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#define check_buffer_timestamp(buffer,timestamp) \
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fail_unless (GST_BUFFER_TIMESTAMP (buffer) == timestamp, \
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"expected timestamp %" GST_TIME_FORMAT \
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", but got timestamp %" GST_TIME_FORMAT, \
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GST_TIME_ARGS (timestamp), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)))
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#define check_buffer_duration(buffer,duration) \
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fail_unless (GST_BUFFER_DURATION (buffer) == duration, \
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"expected duration %" GST_TIME_FORMAT \
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", but got duration %" GST_TIME_FORMAT, \
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GST_TIME_ARGS (duration), GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)))
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static gboolean old_libtheora;
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static void
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check_libtheora (void)
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{
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old_libtheora = (theora_version_number () <= 0x00030200);
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}
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static void
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check_buffer_granulepos (GstBuffer * buffer, gint64 granulepos)
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{
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GstClockTime clocktime;
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int framecount;
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/* With old versions of libtheora, the granulepos represented the
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* start time, not end time. Adapt for that. */
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if (old_libtheora) {
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if (granulepos >> GRANULEPOS_SHIFT)
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granulepos -= 1 << GRANULEPOS_SHIFT;
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else if (granulepos)
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granulepos -= 1;
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}
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fail_unless (GST_BUFFER_OFFSET_END (buffer) == granulepos,
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"expected granulepos %" G_GUINT64_FORMAT
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", but got granulepos %" G_GUINT64_FORMAT,
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granulepos, GST_BUFFER_OFFSET_END (buffer));
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/* contrary to what we record as TIMESTAMP, we can use OFFSET to check
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* the granulepos correctly here */
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framecount = GST_BUFFER_OFFSET_END (buffer);
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framecount = granulepos >> GRANULEPOS_SHIFT;
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framecount += granulepos & ((1 << GRANULEPOS_SHIFT) - 1);
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clocktime = gst_util_uint64_scale (framecount, GST_SECOND, FRAMERATE);
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fail_unless (clocktime == GST_BUFFER_OFFSET (buffer),
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"expected OFFSET set to clocktime %" GST_TIME_FORMAT
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", but got %" GST_TIME_FORMAT,
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GST_TIME_ARGS (clocktime), GST_TIME_ARGS (GST_BUFFER_OFFSET (buffer)));
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}
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/* this check is here to check that the granulepos we derive from the
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timestamp is about correct. This is "about correct" because you can't
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precisely go from timestamp to granulepos due to the downward-rounding
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characteristics of gst_util_uint64_scale, so you check if granulepos is
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equal to the number, or the number plus one. */
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/* should be from_endtime, but theora's granulepos mapping is "special" */
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static void
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check_buffer_granulepos_from_starttime (GstBuffer * buffer,
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GstClockTime starttime)
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{
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gint64 granulepos, expected, framecount;
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granulepos = GST_BUFFER_OFFSET_END (buffer);
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/* Now convert to 'granulepos for start time', depending on libtheora
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* version */
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if (!old_libtheora) {
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if (granulepos & ((1 << GRANULEPOS_SHIFT) - 1))
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granulepos -= 1;
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else if (granulepos)
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granulepos -= 1 << GRANULEPOS_SHIFT;
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}
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framecount = granulepos >> GRANULEPOS_SHIFT;
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framecount += granulepos & ((1 << GRANULEPOS_SHIFT) - 1);
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expected = gst_util_uint64_scale (starttime, FRAMERATE, GST_SECOND);
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fail_unless (framecount == expected || framecount == expected + 1,
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"expected frame count %" G_GUINT64_FORMAT
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" or %" G_GUINT64_FORMAT
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", but got frame count %" G_GUINT64_FORMAT,
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expected, expected + 1, framecount);
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}
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GST_START_TEST (test_granulepos_offset)
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{
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GstElement *bin;
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GstPad *pad;
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gchar *pipe_str;
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GstBuffer *buffer;
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GError *error = NULL;
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pipe_str = g_strdup_printf ("videotestsrc timestamp-offset=%" G_GUINT64_FORMAT
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" num-buffers=10 ! video/x-raw,format=(string)I420,framerate=10/1"
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" ! theoraenc ! fakesink name=fs0", TIMESTAMP_OFFSET);
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bin = gst_parse_launch (pipe_str, &error);
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fail_unless (bin != NULL, "Error parsing pipeline: %s",
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error ? error->message : "(invalid error)");
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g_free (pipe_str);
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/* get the pad */
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{
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GstElement *sink = gst_bin_get_by_name (GST_BIN (bin), "fs0");
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fail_unless (sink != NULL, "Could not get fakesink out of bin");
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pad = gst_element_get_static_pad (sink, "sink");
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fail_unless (pad != NULL, "Could not get pad out of fakesink");
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gst_object_unref (sink);
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}
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gst_buffer_straw_start_pipeline (bin, pad);
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/* header packets should have timestamp == NONE, granulepos 0, IN_CAPS */
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buffer = gst_buffer_straw_get_buffer (bin, pad);
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check_buffer_timestamp (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_duration (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_granulepos (buffer, 0);
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check_buffer_is_header (buffer, TRUE);
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gst_buffer_unref (buffer);
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buffer = gst_buffer_straw_get_buffer (bin, pad);
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check_buffer_timestamp (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_duration (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_granulepos (buffer, 0);
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check_buffer_is_header (buffer, TRUE);
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gst_buffer_unref (buffer);
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buffer = gst_buffer_straw_get_buffer (bin, pad);
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check_buffer_timestamp (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_duration (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_granulepos (buffer, 0);
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check_buffer_is_header (buffer, TRUE);
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gst_buffer_unref (buffer);
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{
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GstClockTime next_timestamp;
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gint64 last_granulepos;
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/* first buffer should have timestamp of TIMESTAMP_OFFSET, granulepos to
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* match the timestamp of the end of the last sample in the output buffer.
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* Note that one cannot go timestamp->granulepos->timestamp and get the
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* same value due to loss of precision with granulepos. theoraenc does
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* take care to timestamp correctly based on the offset of the input data
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* however, so it does do sub-granulepos timestamping. */
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buffer = gst_buffer_straw_get_buffer (bin, pad);
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last_granulepos = GST_BUFFER_OFFSET_END (buffer);
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check_buffer_timestamp (buffer, TIMESTAMP_OFFSET);
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/* don't really have a good way of checking duration... */
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check_buffer_granulepos_from_starttime (buffer, TIMESTAMP_OFFSET);
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check_buffer_is_header (buffer, FALSE);
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next_timestamp = TIMESTAMP_OFFSET + GST_BUFFER_DURATION (buffer);
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gst_buffer_unref (buffer);
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/* check continuity with the next buffer */
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buffer = gst_buffer_straw_get_buffer (bin, pad);
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check_buffer_timestamp (buffer, next_timestamp);
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check_buffer_duration (buffer,
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gst_util_uint64_scale (GST_BUFFER_OFFSET_END (buffer), GST_SECOND,
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FRAMERATE)
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- gst_util_uint64_scale (last_granulepos, GST_SECOND, FRAMERATE));
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check_buffer_granulepos_from_starttime (buffer, next_timestamp);
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check_buffer_is_header (buffer, FALSE);
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gst_buffer_unref (buffer);
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}
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gst_buffer_straw_stop_pipeline (bin, pad);
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gst_object_unref (pad);
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gst_object_unref (bin);
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}
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GST_END_TEST;
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GST_START_TEST (test_continuity)
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{
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GstElement *bin;
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GstPad *pad;
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gchar *pipe_str;
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GstBuffer *buffer;
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GError *error = NULL;
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pipe_str = g_strdup_printf ("videotestsrc num-buffers=10"
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" ! video/x-raw,format=(string)I420,framerate=10/1"
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" ! theoraenc ! fakesink name=fs0");
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bin = gst_parse_launch (pipe_str, &error);
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fail_unless (bin != NULL, "Error parsing pipeline: %s",
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error ? error->message : "(invalid error)");
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g_free (pipe_str);
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/* get the pad */
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{
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GstElement *sink = gst_bin_get_by_name (GST_BIN (bin), "fs0");
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fail_unless (sink != NULL, "Could not get fakesink out of bin");
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pad = gst_element_get_static_pad (sink, "sink");
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fail_unless (pad != NULL, "Could not get pad out of fakesink");
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gst_object_unref (sink);
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}
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gst_buffer_straw_start_pipeline (bin, pad);
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/* header packets should have timestamp == NONE, granulepos 0 */
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buffer = gst_buffer_straw_get_buffer (bin, pad);
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check_buffer_timestamp (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_duration (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_granulepos (buffer, 0);
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check_buffer_is_header (buffer, TRUE);
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gst_buffer_unref (buffer);
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buffer = gst_buffer_straw_get_buffer (bin, pad);
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check_buffer_timestamp (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_duration (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_granulepos (buffer, 0);
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check_buffer_is_header (buffer, TRUE);
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gst_buffer_unref (buffer);
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buffer = gst_buffer_straw_get_buffer (bin, pad);
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check_buffer_timestamp (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_duration (buffer, GST_CLOCK_TIME_NONE);
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check_buffer_granulepos (buffer, 0);
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check_buffer_is_header (buffer, TRUE);
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gst_buffer_unref (buffer);
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{
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GstClockTime next_timestamp;
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/* first buffer should have timestamp of TIMESTAMP_OFFSET, granulepos to
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* match the timestamp of the end of the last sample in the output buffer.
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* Note that one cannot go timestamp->granulepos->timestamp and get the
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* same value due to loss of precision with granulepos. theoraenc does
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* take care to timestamp correctly based on the offset of the input data
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* however, so it does do sub-granulepos timestamping. */
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buffer = gst_buffer_straw_get_buffer (bin, pad);
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check_buffer_timestamp (buffer, 0);
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/* plain division because I know the answer is exact */
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check_buffer_duration (buffer, GST_SECOND / 10);
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check_buffer_granulepos (buffer, 1 << GRANULEPOS_SHIFT);
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check_buffer_is_header (buffer, FALSE);
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next_timestamp = GST_BUFFER_DURATION (buffer);
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gst_buffer_unref (buffer);
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/* check continuity with the next buffer */
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buffer = gst_buffer_straw_get_buffer (bin, pad);
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check_buffer_timestamp (buffer, next_timestamp);
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check_buffer_duration (buffer, GST_SECOND / 10);
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check_buffer_granulepos (buffer, (1 << GRANULEPOS_SHIFT) | 1);
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check_buffer_is_header (buffer, FALSE);
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gst_buffer_unref (buffer);
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}
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gst_buffer_straw_stop_pipeline (bin, pad);
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gst_object_unref (pad);
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gst_object_unref (bin);
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}
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GST_END_TEST;
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#endif /* #ifndef GST_DISABLE_PARSE */
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static Suite *
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theoraenc_suite (void)
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{
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Suite *s = suite_create ("theoraenc");
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TCase *tc_chain = tcase_create ("general");
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suite_add_tcase (s, tc_chain);
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check_libtheora ();
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#ifndef GST_DISABLE_PARSE
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tcase_add_test (tc_chain, test_granulepos_offset);
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tcase_add_test (tc_chain, test_continuity);
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#endif
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return s;
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}
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GST_CHECK_MAIN (theoraenc);
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