mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-27 04:01:08 +00:00
Code Issues 1 Projects Releases Wiki Activity

rtph26x: Use gst_memory_map() instead of gst_buffer_map() in avc mode

Browse source 
gst_buffer_map () results in memcopying when a GstBuffer contains
more than one GstMemory and when AVC (length-prefixed) alignment is used.
This has quite an impact on performance on systems with limited amount of
resources. With this patch the whole GstBuffer will not be mapped at once,
instead each individual GstMemory will be iterated and mapped separately.
This commit is contained in:
Ognyan Tonchev 2020-02-06 09:23:24 +01:00 committed by Sebastian Dröge
parent 3e0d557744
commit a78a74bff0
6 changed files with 488 additions and 50 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

116
gst/rtp/gstbuffermemory.c Normal file
View file

@ -0,0 +1,116 @@
/* GStreamer
* Copyright (C) 2020 Ognyan Tonchev <ognyan at axis dot com>
*
* 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.
*/
#include "gstbuffermemory.h"
gboolean
gst_buffer_memory_map (GstBuffer * buffer, GstBufferMemoryMap * map)
{
GstMemory *mem;
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
g_return_val_if_fail (map != NULL, FALSE);
if (gst_buffer_n_memory (buffer) == 0) {
GST_DEBUG ("no memory blocks in buffer");
return FALSE;
}
mem = gst_buffer_get_memory (buffer, 0);
if (!gst_memory_map (mem, &map->map, GST_MAP_READ)) {
GST_ERROR ("failed to map memory");
gst_memory_unref (mem);
return FALSE;
}
map->buf = buffer;
map->mem = mem;
map->data = map->map.data;
map->size = map->map.size;
map->index = 0;
return TRUE;
}
static gboolean
buffer_memory_map_next (GstBufferMemoryMap * map)
{
if (!map->mem)
return FALSE;
gst_memory_unmap (map->mem, &map->map);
gst_memory_unref (map->mem);
map->mem = NULL;
map->data = NULL;
map->size = 0;
map->index++;
if (map->index >= gst_buffer_n_memory (map->buf)) {
GST_DEBUG ("no more memory blocks in buffer");
return FALSE;
}
map->mem = gst_buffer_get_memory (map->buf, map->index);
if (!gst_memory_map (map->mem, &map->map, GST_MAP_READ)) {
GST_ERROR ("failed to map memory");
gst_memory_unref (map->mem);
map->mem = NULL;
return FALSE;
}
map->data = map->map.data;
map->size = map->map.size;
return TRUE;
}
gboolean
gst_buffer_memory_advance_bytes (GstBufferMemoryMap * map, gsize size)
{
gsize offset = size;
g_return_val_if_fail (map != NULL, FALSE);
while (offset >= map->size) {
offset -= map->size;
GST_DEBUG ("switching memory");
if (!buffer_memory_map_next (map))
return FALSE;
}
map->data += offset;
map->size -= offset;
return TRUE;
}
void
gst_buffer_memory_unmap (GstBufferMemoryMap * map)
{
g_return_if_fail (map != NULL);
if (map->mem) {
gst_memory_unmap (map->mem, &map->map);
gst_memory_unref (map->mem);
map->mem = NULL;
}
}

64
gst/rtp/gstbuffermemory.h Normal file
View file

@ -0,0 +1,64 @@
/* GStreamer
* Copyright (C) 2020 Ognyan Tonchev <ognyan at axis dot com>
*
* 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.
*/
#ifndef __GST_BUFFER_MEMORY_H__
#define __GST_BUFFER_MEMORY_H__
#include <gst/gst.h>
G_BEGIN_DECLS
struct _GstBufferMemoryMap
{
/* private datas */
GstBuffer *buf;
GstMemory *mem;
GstMapInfo map;
guint index;
/* public datas */
/* data of the currently mapped memory */
const guint8 *data;
/* size of the currently mapped memory */
gsize size;
/* When advancing through the data with gst_buffer_memory_advance_bytes ()
* the data field is also advanced and the size field decreased with the
* corresponding number of bytes. If all the bytes from the currently mapped
* GstMemory have been consumed then a new GstMemory will be mapped and data
* and size fileds will be updated.
* */
};
typedef struct _GstBufferMemoryMap GstBufferMemoryMap;
G_GNUC_INTERNAL
gboolean gst_buffer_memory_map (GstBuffer * buffer, GstBufferMemoryMap * map);
G_GNUC_INTERNAL
gboolean gst_buffer_memory_advance_bytes (GstBufferMemoryMap * map, gsize size);
G_GNUC_INTERNAL
void gst_buffer_memory_unmap (GstBufferMemoryMap * map);
G_END_DECLS
#endif /* __GST_BUFFER_MEMORY_H__ */

60
gst/rtp/gstrtph264pay.c
View file

@ -33,6 +33,7 @@
#include "gstrtph264pay.h"
#include "gstrtputils.h"
#include "gstbuffermemory.h"
#define IDR_TYPE_ID 5
@ -1342,7 +1343,6 @@ gst_rtp_h264_pay_handle_buffer (GstRTPBasePayload * basepayload,
GstFlowReturn ret;
gsize size;
guint nal_len, i;
GstMapInfo map;
const guint8 *data;
GstClockTime dts, pts;
GArray *nal_queue;
@ -1364,16 +1364,6 @@ gst_rtp_h264_pay_handle_buffer (GstRTPBasePayload * basepayload,
/* In AVC mode, there is no adapter, so nothing to drain */
if (draining)
return GST_FLOW_OK;
gst_buffer_map (buffer, &map, GST_MAP_READ);
data = map.data;
size = map.size;
pts = GST_BUFFER_PTS (buffer);
dts = GST_BUFFER_DTS (buffer);
rtph264pay->delta_unit = GST_BUFFER_FLAG_IS_SET (buffer,
GST_BUFFER_FLAG_DELTA_UNIT);
rtph264pay->discont = GST_BUFFER_IS_DISCONT (buffer);
marker = GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_MARKER);
GST_DEBUG_OBJECT (basepayload, "got %" G_GSIZE_FORMAT " bytes", size);
} else {
if (buffer) {
if (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT)) {
@ -1417,29 +1407,43 @@ gst_rtp_h264_pay_handle_buffer (GstRTPBasePayload * basepayload,
/* now loop over all NAL units and put them in a packet */
if (avc) {
GstBufferMemoryMap memory;
gsize remaining_buffer_size;
guint nal_length_size;
gsize offset = 0;
gst_buffer_memory_map (buffer, &memory);
remaining_buffer_size = gst_buffer_get_size (buffer);
pts = GST_BUFFER_PTS (buffer);
dts = GST_BUFFER_DTS (buffer);
rtph264pay->delta_unit = GST_BUFFER_FLAG_IS_SET (buffer,
GST_BUFFER_FLAG_DELTA_UNIT);
rtph264pay->discont = GST_BUFFER_IS_DISCONT (buffer);
marker = GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_MARKER);
GST_DEBUG_OBJECT (basepayload, "got %" G_GSIZE_FORMAT " bytes",
remaining_buffer_size);
nal_length_size = rtph264pay->nal_length_size;
while (size > nal_length_size) {
while (remaining_buffer_size > nal_length_size) {
gint i;
gboolean end_of_au = FALSE;
nal_len = 0;
for (i = 0; i < nal_length_size; i++) {
nal_len = ((nal_len << 8) + data[i]);
nal_len = (nal_len << 8) + *memory.data;
if (!gst_buffer_memory_advance_bytes (&memory, 1))
break;
}
/* skip the length bytes, make sure we don't run past the buffer size */
data += nal_length_size;
offset += nal_length_size;
size -= nal_length_size;
remaining_buffer_size -= nal_length_size;
if (size >= nal_len) {
if (remaining_buffer_size >= nal_len) {
GST_DEBUG_OBJECT (basepayload, "got NAL of size %u", nal_len);
} else {
nal_len = size;
nal_len = remaining_buffer_size;
GST_DEBUG_OBJECT (basepayload, "got incomplete NAL of size %u",
nal_len);
}
@ -1447,7 +1451,7 @@ gst_rtp_h264_pay_handle_buffer (GstRTPBasePayload * basepayload,
/* If we're at the end of the buffer, then we're at the end of the
* access unit
*/
if (size - nal_len <= nal_length_size) {
if (remaining_buffer_size - nal_len <= nal_length_size) {
if (rtph264pay->alignment == GST_H264_ALIGNMENT_AU || marker)
end_of_au = TRUE;
}
@ -1469,10 +1473,19 @@ gst_rtp_h264_pay_handle_buffer (GstRTPBasePayload * basepayload,
if (ret != GST_FLOW_OK)
break;
data += nal_len;
/* Skip current nal. If it is split over multiple GstMemory
* advance_bytes () will switch to the correct GstMemory. The payloader
* does not access those bytes directly but uses gst_buffer_copy_region ()
* to create a sub-buffer referencing the nal instead */
if (!gst_buffer_memory_advance_bytes (&memory, nal_len))
break;
offset += nal_len;
size -= nal_len;
remaining_buffer_size -= nal_len;
}
gst_buffer_memory_unmap (&memory);
gst_buffer_unref (buffer);
} else {
guint next;
gboolean update = FALSE;
@ -1638,10 +1651,7 @@ gst_rtp_h264_pay_handle_buffer (GstRTPBasePayload * basepayload,
done:
if (avc) {
gst_buffer_unmap (buffer, &map);
gst_buffer_unref (buffer);
} else {
if (!avc) {
gst_adapter_unmap (rtph264pay->adapter);
}

53
gst/rtp/gstrtph265pay.c
View file

@ -34,6 +34,7 @@
#include "gstrtph265pay.h"
#include "gstrtputils.h"
#include "gstbuffermemory.h"
#define AP_TYPE_ID 48
#define FU_TYPE_ID 49
@ -1424,7 +1425,6 @@ gst_rtp_h265_pay_handle_buffer (GstRTPBasePayload * basepayload,
GstFlowReturn ret;
gsize size;
guint nal_len, i;
GstMapInfo map;
const guint8 *data;
GstClockTime dts, pts;
GArray *nal_queue;
@ -1446,13 +1446,6 @@ gst_rtp_h265_pay_handle_buffer (GstRTPBasePayload * basepayload,
/* In hevc mode, there is no adapter, so nothing to drain */
if (draining)
return GST_FLOW_OK;
gst_buffer_map (buffer, &map, GST_MAP_READ);
data = map.data;
size = map.size;
pts = GST_BUFFER_PTS (buffer);
dts = GST_BUFFER_DTS (buffer);
marker = GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_MARKER);
GST_DEBUG_OBJECT (basepayload, "got %" G_GSIZE_FORMAT " bytes", size);
} else {
if (buffer) {
if (gst_adapter_available (rtph265pay->adapter) == 0)
@ -1478,6 +1471,8 @@ gst_rtp_h265_pay_handle_buffer (GstRTPBasePayload * basepayload,
/* now loop over all NAL units and put them in a packet */
if (hevc) {
GstBufferMemoryMap memory;
gsize remaining_buffer_size;
guint nal_length_size;
gsize offset = 0;
GPtrArray *paybufs;
@ -1485,23 +1480,32 @@ gst_rtp_h265_pay_handle_buffer (GstRTPBasePayload * basepayload,
paybufs = g_ptr_array_new ();
nal_length_size = rtph265pay->nal_length_size;
while (size > nal_length_size) {
gst_buffer_memory_map (buffer, &memory);
remaining_buffer_size = gst_buffer_get_size (buffer);
pts = GST_BUFFER_PTS (buffer);
dts = GST_BUFFER_DTS (buffer);
marker = GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_MARKER);
GST_DEBUG_OBJECT (basepayload, "got %" G_GSIZE_FORMAT " bytes",
remaining_buffer_size);
while (remaining_buffer_size > nal_length_size) {
gint i;
nal_len = 0;
for (i = 0; i < nal_length_size; i++) {
nal_len = ((nal_len << 8) + data[i]);
nal_len = (nal_len << 8) + *memory.data;
if (!gst_buffer_memory_advance_bytes (&memory, 1))
break;
}
/* skip the length bytes, make sure we don't run past the buffer size */
data += nal_length_size;
offset += nal_length_size;
size -= nal_length_size;
remaining_buffer_size -= nal_length_size;
if (size >= nal_len) {
if (remaining_buffer_size >= nal_len) {
GST_DEBUG_OBJECT (basepayload, "got NAL of size %u", nal_len);
} else {
nal_len = size;
nal_len = remaining_buffer_size;
GST_DEBUG_OBJECT (basepayload, "got incomplete NAL of size %u",
nal_len);
}
@ -1514,7 +1518,7 @@ gst_rtp_h265_pay_handle_buffer (GstRTPBasePayload * basepayload,
* access unit
*/
GST_BUFFER_FLAG_UNSET (paybuf, GST_BUFFER_FLAG_MARKER);
if (size - nal_len <= nal_length_size) {
if (remaining_buffer_size - nal_len <= nal_length_size) {
if (rtph265pay->alignment == GST_H265_ALIGNMENT_AU || marker)
GST_BUFFER_FLAG_SET (paybuf, GST_BUFFER_FLAG_MARKER);
}
@ -1525,11 +1529,19 @@ gst_rtp_h265_pay_handle_buffer (GstRTPBasePayload * basepayload,
discont = FALSE;
}
data += nal_len;
/* Skip current nal. If it is split over multiple GstMemory
* advance_bytes () will switch to the correct GstMemory. The payloader
* does not access those bytes directly but uses gst_buffer_copy_region ()
* to create a sub-buffer referencing the nal instead */
if (!gst_buffer_memory_advance_bytes (&memory, nal_len))
break;
offset += nal_len;
size -= nal_len;
remaining_buffer_size -= nal_len;
}
ret = gst_rtp_h265_pay_payload_nal (basepayload, paybufs, dts, pts);
gst_buffer_memory_unmap (&memory);
gst_buffer_unref (buffer);
} else {
guint next;
gboolean update = FALSE;
@ -1658,10 +1670,7 @@ gst_rtp_h265_pay_handle_buffer (GstRTPBasePayload * basepayload,
}
done:
if (hevc) {
gst_buffer_unmap (buffer, &map);
gst_buffer_unref (buffer);
} else {
if (!hevc) {
gst_adapter_unmap (rtph265pay->adapter);
}

1
gst/rtp/meson.build
View file

@ -1,6 +1,7 @@
rtp_sources = [
'dboolhuff.c',
'fnv1hash.c',
'gstbuffermemory.c',
'gstrtp.c',
'gstrtpchannels.c',
'gstrtpac3depay.c',

244
tests/check/elements/rtph264.c
View file

@ -199,6 +199,53 @@ c_mem_app_sink_class_init (CMemAppSinkClass * klass)
#define RTP_H264_FILE GST_TEST_FILES_PATH G_DIR_SEPARATOR_S "h264.rtp"
static GstBuffer *
create_codec_data (guint8 * sps, gsize sps_size, guint8 * pps, gsize pps_size)
{
unsigned int offset = 0;
GstBuffer *codec_data_buffer;
GstMemory *mem;
GstMapInfo map_info;
guint8 *codec_data;
codec_data_buffer =
gst_buffer_new_allocate (NULL, sps_size + pps_size + 11, NULL);
mem = gst_buffer_peek_memory (codec_data_buffer, 0);
gst_memory_map (mem, &map_info, GST_MAP_WRITE);
codec_data = map_info.data;
codec_data[offset++] = 0x01; /* Configuration Version */
codec_data[offset++] = sps[1]; /* AVCProfileIndication */
codec_data[offset++] = sps[2]; /* profile_compatibility */
codec_data[offset++] = sps[3]; /* AVCLevelIndication */
codec_data[offset++] = 0xff; /* lengthSizeMinusOne == 3 -> length == 4 byte */
/* SPS */
codec_data[offset++] = 0xe1; /* numOfSequenceParameterSets | b11100000 -> numSPS == 1 */
g_assert (sps_size <= 0xffff);
codec_data[offset++] = (sps_size >> 8) & 0xff; /* numOfSequenceParameterSets high 8bit */
codec_data[offset++] = sps_size & 0xff; /* numOfSequenceParameterSets low 8bit */
memcpy (codec_data + offset, sps, sps_size);
offset += sps_size;
/* PPS */
codec_data[offset++] = 0x1; /* numOfPictureParameterSets == 1 */
g_assert (pps_size <= 0xffff);
codec_data[offset++] = (pps_size >> 8) & 0xff;
codec_data[offset++] = pps_size & 0xff;
memcpy (codec_data + offset, pps, pps_size);
offset += pps_size;
gst_memory_unmap (mem, &map_info);
g_assert (offset == gst_buffer_get_size (codec_data_buffer));
return codec_data_buffer;
}
GST_START_TEST (test_rtph264depay_with_downstream_allocator)
{
GstElement *pipeline, *src, *depay, *sink;
@ -298,21 +345,36 @@ GST_END_TEST;
static GstBuffer *
wrap_static_buffer_with_pts (guint8 * buf, gsize size, GstClockTime pts)
wrap_static_buffer_with_pts_full (guint8 * buf, gsize size, GstClockTime pts,
gpointer user_data, GDestroyNotify notify)
{
GstBuffer *buffer;
buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
buf, size, 0, size, NULL, NULL);
buf, size, 0, size, user_data, notify);
GST_BUFFER_PTS (buffer) = pts;
return buffer;
}
static GstBuffer *
wrap_static_buffer_full (guint8 * buf, gsize size, gpointer user_data,
GDestroyNotify notify)
{
return wrap_static_buffer_with_pts_full (buf, size, GST_CLOCK_TIME_NONE,
user_data, notify);
}
static GstBuffer *
wrap_static_buffer_with_pts (guint8 * buf, gsize size, GstClockTime pts)
{
return wrap_static_buffer_with_pts_full (buf, size, pts, NULL, NULL);
}
static GstBuffer *
wrap_static_buffer (guint8 * buf, gsize size)
{
return wrap_static_buffer_with_pts (buf, size, GST_CLOCK_TIME_NONE);
return wrap_static_buffer_full (buf, size, NULL, NULL);
}
/* This was generated using pipeline:
@ -527,6 +589,40 @@ static guint8 h264_idr_slice_2[] = {
0xd7, 0x5d, 0x75, 0xd7, 0x5e
};
/* SPS */
static guint8 h264_sps_avc[] = {
0x00, 0x00, 0x00, 0x0E, 0x67, 0x42, 0xc0, 0x29,
0x8c, 0x8d, 0x41, 0x02, 0x24, 0x03, 0xc2, 0x21,
0x1a, 0x80
};
/* PPS */
static guint8 h264_pps_avc[] = {
0x00, 0x00, 0x00, 0x04, 0x68, 0xce, 0x3c, 0x80
};
/* IDR Slice 1 */
static guint8 h264_idr_slice_1_avc[] = {
0x00, 0x00, 0x00, 0x30, 0x65, 0xb8, 0x00, 0x04,
0x00, 0x00, 0x11, 0xff, 0xff, 0xf8, 0x22, 0x8a,
0x1f, 0x1c, 0x00, 0x04, 0x0a, 0x63, 0x80, 0x00,
0x81, 0xec, 0x9a, 0x93, 0x93, 0x93, 0x93, 0x93,
0x93, 0xad, 0x57, 0x5d, 0x75, 0xd7, 0x5d, 0x75,
0xd7, 0x5d, 0x75, 0xd7, 0x5d, 0x75, 0xd7, 0x5d,
0x75, 0xd7, 0x5d, 0x78
};
/* IDR Slice 2 */
static guint8 h264_idr_slice_2_avc[] = {
0x00, 0x00, 0x00, 0x31, 0x65, 0x04, 0x2e, 0x00,
0x01, 0x00, 0x00, 0x04, 0x7f, 0xff, 0xfe, 0x08,
0xa2, 0x87, 0xc7, 0x00, 0x01, 0x02, 0x98, 0xe0,
0x00, 0x20, 0x7b, 0x26, 0xa4, 0xe4, 0xe4, 0xe4,
0xe4, 0xe4, 0xeb, 0x55, 0xd7, 0x5d, 0x75, 0xd7,
0x5d, 0x75, 0xd7, 0x5d, 0x75, 0xd7, 0x5d, 0x75,
0xd7, 0x5d, 0x75, 0xd7, 0x5e
};
/* The RFC makes special use of NAL type 24 to 27, this test makes sure that
* such a NAL from the outside gets ignored properly. */
GST_START_TEST (test_rtph264pay_reserved_nals)
@ -1092,6 +1188,144 @@ GST_START_TEST (test_rtph264pay_aggregate_until_vcl)
GST_END_TEST;
GST_START_TEST (test_rtph264pay_avc)
{
GstHarness *h = gst_harness_new_parse ("rtph264pay timestamp-offset=123");
GstFlowReturn ret;
GstBuffer *buffer;
GstRTPBuffer rtp = GST_RTP_BUFFER_INIT;
GstCaps *caps;
GstBuffer *codec_data;
codec_data = create_codec_data (h264_sps_avc, sizeof (h264_sps_avc) - 4,
h264_pps_avc, sizeof (h264_pps_avc) - 4);
caps = gst_caps_from_string ("video/x-h264,alignment=au,stream-format=avc");
gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, codec_data, NULL);
gst_buffer_unref (codec_data);
GST_DEBUG ("caps are %" GST_PTR_FORMAT, caps);
gst_harness_set_src_caps (h, caps);
ret = gst_harness_push (h, wrap_static_buffer (h264_idr_slice_1_avc,
sizeof (h264_idr_slice_1_avc)));
fail_unless_equals_int (ret, GST_FLOW_OK);
buffer =
wrap_static_buffer (h264_idr_slice_2_avc, sizeof (h264_idr_slice_2_avc));
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_MARKER);
ret = gst_harness_push (h, buffer);
fail_unless_equals_int (ret, GST_FLOW_OK);
fail_unless_equals_int (gst_harness_buffers_in_queue (h), 2);
buffer = gst_harness_pull (h);
fail_unless (gst_rtp_buffer_map (buffer, GST_MAP_READ, &rtp));
fail_unless (gst_rtp_buffer_get_marker (&rtp));
gst_rtp_buffer_unmap (&rtp);
gst_buffer_unref (buffer);
buffer = gst_harness_pull (h);
fail_unless (gst_rtp_buffer_map (buffer, GST_MAP_READ, &rtp));
fail_unless (gst_rtp_buffer_get_marker (&rtp));
gst_rtp_buffer_unmap (&rtp);
gst_buffer_unref (buffer);
gst_harness_teardown (h);
}
GST_END_TEST;
/*
* +------------------------------------------------+
* | GstBuffer |
* +------------------------------------------------+
* | GstMemory 1 | GstMemory 2 |
* +------------------------------------------------+
* | Slice 1 Part 1 | Slice 1 Part2, Slice 2 |
* +------------------------------------------------+
*
* "Slice 1 Part 1" is of size @memory1_len
*
*/
static void
test_rtph264pay_avc_two_slices (gsize memory1_len, guint num_slices)
{
GstHarness *h = gst_harness_new_parse ("rtph264pay timestamp-offset=123");
GstFlowReturn ret;
GstBuffer *slice1;
GstBuffer *slice2;
GstBuffer *buffer;
GstRTPBuffer rtp = GST_RTP_BUFFER_INIT;
GstCaps *caps;
GstBuffer *codec_data;
guint8 *rest_of_image;
gsize rest_of_slice_1_size;
gsize rest_of_image_size;
fail_unless (num_slices <= 2);
codec_data = create_codec_data (h264_sps_avc, sizeof (h264_sps_avc) - 4,
h264_pps_avc, sizeof (h264_pps_avc) - 4);
caps = gst_caps_from_string ("video/x-h264,alignment=au,stream-format=avc");
gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, codec_data, NULL);
gst_buffer_unref (codec_data);
GST_DEBUG ("caps are %" GST_PTR_FORMAT, caps);
gst_harness_set_src_caps (h, caps);
slice1 = wrap_static_buffer (h264_idr_slice_1_avc, memory1_len);
rest_of_slice_1_size = sizeof (h264_idr_slice_1_avc) - memory1_len;
if (num_slices == 2) {
rest_of_image_size = rest_of_slice_1_size + sizeof (h264_idr_slice_2_avc);
rest_of_image = g_malloc (rest_of_image_size);
memcpy (rest_of_image, h264_idr_slice_1_avc + memory1_len,
rest_of_slice_1_size);
memcpy (rest_of_image + rest_of_slice_1_size, h264_idr_slice_2_avc,
sizeof (h264_idr_slice_2_avc));
slice2 =
wrap_static_buffer_full (rest_of_image, rest_of_image_size,
rest_of_image, g_free);
buffer = gst_buffer_append (slice1, slice2);
} else
buffer = slice1;
GST_DEBUG ("number of memories: %d", gst_buffer_n_memory (buffer));
ret = gst_harness_push (h, buffer);
fail_unless_equals_int (ret, GST_FLOW_OK);
fail_unless_equals_int (gst_harness_buffers_in_queue (h), 1);
buffer = gst_harness_pull (h);
fail_unless (gst_rtp_buffer_map (buffer, GST_MAP_READ, &rtp));
gst_rtp_buffer_unmap (&rtp);
gst_buffer_unref (buffer);
gst_harness_teardown (h);
}
GST_START_TEST (test_rtph264pay_avc_two_slices_per_buffer)
{
test_rtph264pay_avc_two_slices (1, 2);
test_rtph264pay_avc_two_slices (2, 2);
test_rtph264pay_avc_two_slices (sizeof (h264_idr_slice_1_avc) - 10, 2);
}
GST_END_TEST;
GST_START_TEST (test_rtph264pay_avc_incomplete_nal)
{
test_rtph264pay_avc_two_slices (sizeof (h264_idr_slice_1_avc) - 10, 1);
}
GST_END_TEST;
static Suite *
rtph264_suite (void)
{
@ -1118,6 +1352,10 @@ rtph264_suite (void)
tcase_add_test (tc_chain, test_rtph264pay_aggregate_with_discont);
tcase_add_test (tc_chain, test_rtph264pay_aggregate_until_vcl);
tcase_add_test (tc_chain, test_rtph264pay_avc);
tcase_add_test (tc_chain, test_rtph264pay_avc_two_slices_per_buffer);
tcase_add_test (tc_chain, test_rtph264pay_avc_incomplete_nal);
return s;
}