gstreamer/subprojects/gst-plugins-good/tests/check/elements/vp8enc.c

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/* GStreamer
*
* Copyright (c) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* 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.
*/
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#include <gst/check/gstharness.h>
#include <gst/check/gstcheck.h>
#include <gst/video/video.h>
#define gst_caps_new_i420(w, h) gst_caps_new_i420_full (w, h, 30, 1, 1, 1)
static GstCaps *
gst_caps_new_i420_full (gint width, gint height, gint fps_n, gint fps_d,
gint par_n, gint par_d)
{
GstVideoInfo info;
gst_video_info_init (&info);
gst_video_info_set_format (&info, GST_VIDEO_FORMAT_I420, width, height);
GST_VIDEO_INFO_FPS_N (&info) = fps_n;
GST_VIDEO_INFO_FPS_D (&info) = fps_d;
GST_VIDEO_INFO_PAR_N (&info) = par_n;
GST_VIDEO_INFO_PAR_D (&info) = par_d;
return gst_video_info_to_caps (&info);
}
static GstBuffer *
gst_harness_create_video_buffer_from_info (GstHarness * h, gint value,
GstVideoInfo * info, GstClockTime timestamp, GstClockTime duration)
{
GstBuffer *buf;
gsize size;
size = GST_VIDEO_INFO_SIZE (info);
buf = gst_harness_create_buffer (h, size);
gst_buffer_memset (buf, 0, value, size);
g_assert (buf != NULL);
gst_buffer_add_video_meta_full (buf,
GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_INFO_FORMAT (info),
GST_VIDEO_INFO_WIDTH (info),
GST_VIDEO_INFO_HEIGHT (info),
GST_VIDEO_INFO_N_PLANES (info), info->offset, info->stride);
GST_BUFFER_PTS (buf) = timestamp;
GST_BUFFER_DURATION (buf) = duration;
return buf;
}
static GstBuffer *
gst_harness_create_video_buffer_full (GstHarness * h, gint value,
guint width, guint height, GstClockTime timestamp, GstClockTime duration)
{
GstVideoInfo info;
gst_video_info_init (&info);
gst_video_info_set_format (&info, GST_VIDEO_FORMAT_I420, width, height);
return gst_harness_create_video_buffer_from_info (h, value, &info,
timestamp, duration);
}
GST_START_TEST (test_encode_simple)
{
gint i;
GstHarness *h = gst_harness_new ("vp8enc");
gst_harness_set_src_caps (h, gst_caps_new_i420_full (320, 240, 25, 1, 1, 1));
for (i = 0; i < 20; i++) {
GstBuffer *buffer = gst_harness_create_video_buffer_full (h, 0x0,
320, 240, gst_util_uint64_scale (i, GST_SECOND, 25),
gst_util_uint64_scale (1, GST_SECOND, 25));
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, buffer));
}
for (i = 0; i < 20; i++) {
GstBuffer *buffer = gst_harness_pull (h);
if (i == 0)
fail_if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT));
fail_unless_equals_uint64 (GST_BUFFER_TIMESTAMP (buffer),
gst_util_uint64_scale (i, GST_SECOND, 25));
fail_unless_equals_uint64 (GST_BUFFER_DURATION (buffer),
gst_util_uint64_scale (1, GST_SECOND, 25));
gst_buffer_unref (buffer);
}
gst_harness_teardown (h);
}
GST_END_TEST;
GST_START_TEST (test_encode_lag_in_frames)
{
GstFlowReturn ret;
GstBuffer *buffer;
GstSegment seg;
GstHarness *h = gst_harness_new ("vp8enc");
g_object_set (h->element, "lag-in-frames", 5, NULL);
gst_harness_set_src_caps (h, gst_caps_new_i420_full (320, 240, 25, 1, 1, 1));
gst_segment_init (&seg, GST_FORMAT_TIME);
seg.stop = gst_util_uint64_scale (20, GST_SECOND, 25);
fail_unless (gst_harness_push_event (h, gst_event_new_segment (&seg)));
buffer = gst_harness_create_video_buffer_full (h, 0x0,
320, 240, gst_util_uint64_scale (0, GST_SECOND, 25),
gst_util_uint64_scale (1, GST_SECOND, 25));
ret = gst_harness_push (h, gst_buffer_ref (buffer));
/* If libvpx was built with CONFIG_REALTIME_ONLY, then we'll receive
* GST_FLOW_NOT_NEGOTIATED. Accept this, and skip the rest of this test
* in that case. */
fail_unless (ret == GST_FLOW_OK || ret == GST_FLOW_NOT_NEGOTIATED);
if (ret == GST_FLOW_OK) {
gint i;
for (i = 1; i < 20; i++) {
GST_BUFFER_TIMESTAMP (buffer) = gst_util_uint64_scale (i, GST_SECOND, 25);
GST_BUFFER_DURATION (buffer) = gst_util_uint64_scale (1, GST_SECOND, 25);
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
gst_buffer_ref (buffer)));
}
fail_unless_equals_int (20, gst_harness_buffers_received (h));
for (i = 0; i < 20; i++) {
GstBuffer *outbuf = gst_harness_pull (h);
if (i == 0)
fail_if (GST_BUFFER_FLAG_IS_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT));
fail_unless_equals_uint64 (GST_BUFFER_TIMESTAMP (outbuf),
gst_util_uint64_scale (i, GST_SECOND, 25));
fail_unless_equals_uint64 (GST_BUFFER_DURATION (outbuf),
gst_util_uint64_scale (1, GST_SECOND, 25));
gst_buffer_unref (outbuf);
}
}
gst_buffer_unref (buffer);
gst_harness_teardown (h);
}
GST_END_TEST;
GST_START_TEST (test_encode_simple_when_bitrate_set_to_zero)
{
GstHarness *h = gst_harness_new_parse ("vp8enc target-bitrate=0");
GstBuffer *buf;
gst_harness_set_src_caps (h, gst_caps_new_i420 (320, 240));
buf = gst_harness_create_video_buffer_full (h, 0x42,
320, 240, 0, gst_util_uint64_scale (GST_SECOND, 1, 30));
gst_harness_push (h, buf);
gst_buffer_unref (gst_harness_pull (h));
gst_harness_teardown (h);
}
GST_END_TEST;
GST_START_TEST (test_autobitrate_changes_with_caps)
{
gint bitrate = 0;
GstHarness *h = gst_harness_new ("vp8enc");
gst_harness_set_src_caps (h, gst_caps_new_i420_full (1280, 720, 30, 1, 1, 1));
/* Default settings for 720p @ 30fps ~1.2Mbps */
g_object_get (h->element, "target-bitrate", &bitrate, NULL);
fail_unless_equals_int (bitrate, 1199000);
/* Change bits-per-pixel 0.036 to give us ~1Mbps */
g_object_set (h->element, "bits-per-pixel", 0.037, NULL);
g_object_get (h->element, "target-bitrate", &bitrate, NULL);
fail_unless_equals_int (bitrate, 1022000);
/* Halving the framerate should halve the auto bitrate */
gst_harness_set_src_caps (h, gst_caps_new_i420_full (1280, 720, 15, 1, 1, 1));
g_object_get (h->element, "target-bitrate", &bitrate, NULL);
fail_unless_equals_int (bitrate, 511000);
/* Halving the resolution should quarter the auto bitrate */
gst_harness_set_src_caps (h, gst_caps_new_i420_full (640, 360, 15, 1, 1, 1));
g_object_get (h->element, "target-bitrate", &bitrate, NULL);
fail_unless_equals_int (bitrate, 127000);
gst_harness_teardown (h);
}
GST_END_TEST;
#define verify_meta(buffer, usets, ybit, tid, tl0picindex) \
G_STMT_START { \
gboolean use_temporal_scaling, layer_sync; \
guint temporal_layer_id, tl0picidx; \
GstCustomMeta *meta = gst_buffer_get_custom_meta (buffer, \
"GstVP8Meta"); \
GstStructure *s; \
fail_unless (meta != NULL); \
s = gst_custom_meta_get_structure (meta); \
fail_unless (gst_structure_get (s, \
"use-temporal-scaling", G_TYPE_BOOLEAN, &use_temporal_scaling, \
"layer-sync", G_TYPE_BOOLEAN, &layer_sync, \
"layer-id", G_TYPE_UINT, &temporal_layer_id, \
"tl0picidx", G_TYPE_UINT, &tl0picidx, NULL)); \
fail_unless_equals_int (usets, use_temporal_scaling); \
fail_unless_equals_int (ybit, layer_sync); \
fail_unless_equals_int (tid, temporal_layer_id); \
fail_unless_equals_int (tl0picindex, tl0picidx); \
} G_STMT_END
static void
configure_vp8ts (GstHarness * h)
{
gint i;
GValue layer_sync_flags = G_VALUE_INIT;
GValueArray *decimators = g_value_array_new (3);
GValueArray *layer_ids = g_value_array_new (4);
GValueArray *bitrates = g_value_array_new (3);
GValue ival = { 0, }, bval = {
0,
};
gst_value_array_init (&layer_sync_flags, 8);
g_value_init (&ival, G_TYPE_INT);
for (i = 0; i < 3; i++) {
/* 7.5, 15, 30fps */
static const gint d[] = { 4, 2, 1 };
g_value_set_int (&ival, d[i]);
g_value_array_append (decimators, &ival);
}
for (i = 0; i < 4; i++) {
static const gint d[] = { 0, 2, 1, 2 };
g_value_set_int (&ival, d[i]);
g_value_array_append (layer_ids, &ival);
}
for (i = 0; i < 3; i++) {
/* Split 512kbps 40%, 20%, 40% */
static const gint d[] = { 204800, 307200, 512000 };
g_value_set_int (&ival, d[i]);
g_value_array_append (bitrates, &ival);
}
gst_util_set_object_arg (G_OBJECT (h->element),
"temporal-scalability-layer-flags",
/* layer 0 */
"<no-ref-golden+no-upd-golden+no-upd-alt,"
/* layer 2 (sync) */
"no-ref-golden+no-upd-last+no-upd-golden+no-upd-alt+no-upd-entropy,"
/* layer 1 (sync) */
"no-ref-golden+no-upd-last+no-upd-alt,"
/* layer 2 */
"no-upd-last+no-upd-golden+no-upd-alt+no-upd-entropy,"
/* layer 0 */
"no-ref-golden+no-upd-golden+no-upd-alt,"
/* layer 2 */
"no-upd-last+no-upd-golden+no-upd-alt+no-upd-entropy,"
/* layer 1 */
"no-upd-last+no-upd-alt,"
/* layer 2 */
"no-upd-last+no-upd-golden+no-upd-alt+no-upd-entropy>");
g_value_init (&bval, G_TYPE_BOOLEAN);
for (i = 0; i < 8; i++) {
/* Reflect pattern above */
static const gboolean d[] = {
FALSE,
TRUE,
TRUE,
FALSE,
FALSE,
FALSE,
FALSE,
FALSE
};
g_value_set_boolean (&bval, d[i]);
gst_value_array_append_value (&layer_sync_flags, &bval);
}
g_object_set_property (G_OBJECT (h->element),
"temporal-scalability-layer-sync-flags", &layer_sync_flags);
g_object_set (h->element,
"temporal-scalability-number-layers", decimators->n_values,
"temporal-scalability-periodicity", layer_ids->n_values,
"temporal-scalability-rate-decimator", decimators,
"temporal-scalability-layer-id", layer_ids,
"temporal-scalability-target-bitrate", bitrates,
"error-resilient", 1, NULL);
g_value_array_free (decimators);
g_value_array_free (layer_ids);
g_value_array_free (bitrates);
g_value_unset (&layer_sync_flags);
}
GST_START_TEST (test_encode_temporally_scaled)
{
gint i;
struct
{
gboolean ybit;
gint tid;
gint tl0picidx;
gboolean droppable;
} expected[] = {
{
TRUE, 0, 1, FALSE}, /* This is an intra */
{
TRUE, 2, 1, TRUE}, {
TRUE, 1, 1, FALSE}, {
FALSE, 2, 1, TRUE}, {
FALSE, 0, 2, FALSE}, {
FALSE, 2, 2, TRUE}, {
FALSE, 1, 2, FALSE}, {
FALSE, 2, 2, TRUE}, {
FALSE, 0, 3, FALSE}, {
TRUE, 2, 3, TRUE}, {
TRUE, 1, 3, FALSE}, {
FALSE, 2, 3, TRUE}, {
FALSE, 0, 4, FALSE}, {
FALSE, 2, 4, TRUE}, {
FALSE, 1, 4, FALSE}, {
FALSE, 2, 4, TRUE},
};
GstHarness *h = gst_harness_new ("vp8enc");
gst_harness_set_src_caps (h, gst_caps_new_i420 (320, 240));
configure_vp8ts (h);
for (i = 0; i < 16; i++) {
GstBuffer *in, *out;
in = gst_harness_create_video_buffer_full (h, 0x42,
320, 240, gst_util_uint64_scale (i, GST_SECOND, 30),
gst_util_uint64_scale (1, GST_SECOND, 30));
gst_harness_push (h, in);
out = gst_harness_pull (h);
/* Ensure first frame is encoded as an intra */
if (i == 0)
fail_if (GST_BUFFER_FLAG_IS_SET (out, GST_BUFFER_FLAG_DELTA_UNIT));
else
fail_unless (GST_BUFFER_FLAG_IS_SET (out, GST_BUFFER_FLAG_DELTA_UNIT));
fail_unless_equals_int (expected[i].droppable,
GST_BUFFER_FLAG_IS_SET (out, GST_BUFFER_FLAG_DROPPABLE));
verify_meta (out, TRUE, expected[i].ybit, expected[i].tid,
expected[i].tl0picidx);
gst_buffer_unref (out);
}
gst_harness_teardown (h);
}
GST_END_TEST;
GST_START_TEST (test_encode_fresh_meta)
{
gint i;
GstBuffer *buffer;
GstHarness *h = gst_harness_new ("vp8enc");
GstCustomMeta *meta;
GstStructure *s;
gst_harness_set_src_caps (h, gst_caps_new_i420_full (320, 240, 25, 1, 1, 1));
buffer = gst_harness_create_video_buffer_full (h, 0x0,
320, 240, gst_util_uint64_scale (0, GST_SECOND, 25),
gst_util_uint64_scale (1, GST_SECOND, 25));
/* Attach bogus meta to input buffer */
meta = gst_buffer_add_custom_meta (buffer, "GstVP8Meta");
s = gst_custom_meta_get_structure (meta);
gst_structure_set (s,
"use-temporal-scaling", G_TYPE_BOOLEAN, FALSE,
"layer-sync", G_TYPE_BOOLEAN, FALSE,
"layer-id", G_TYPE_UINT, 0, "tl0picidx", G_TYPE_UINT, 0, NULL);
for (i = 0; i < 2; i++) {
GstBuffer *out;
fail_unless_equals_int (GST_FLOW_OK,
gst_harness_push (h, gst_buffer_ref (buffer)));
out = gst_harness_pull (h);
/* Ensure that output buffer has fresh meta */
verify_meta (out, FALSE, (i == 0), 0, i + 1);
gst_buffer_unref (out);
}
gst_buffer_unref (buffer);
gst_harness_teardown (h);
}
GST_END_TEST;
static Suite *
vp8enc_suite (void)
{
Suite *s = suite_create ("vp8enc");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_encode_simple);
tcase_add_test (tc_chain, test_encode_lag_in_frames);
tcase_add_test (tc_chain, test_encode_simple_when_bitrate_set_to_zero);
tcase_add_test (tc_chain, test_autobitrate_changes_with_caps);
tcase_add_test (tc_chain, test_encode_temporally_scaled);
tcase_add_test (tc_chain, test_encode_fresh_meta);
return s;
}
GST_CHECK_MAIN (vp8enc);