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coral / imx-gst1.0-plugin / refs/tags/4.3.4-0 / . / plugins / compositor / gstimxcompositor.c
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/* GStreamer IMX video compositor plugin
* Copyright (c) 2015-2016, Freescale Semiconductor, Inc. All rights reserved.
*
* 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.
*/
/**
* SECTION:element-imxcompositor
*
* imxompositor can composite a group of video streams with different format
* into one video frame. videos can be overlapped or alpha blent if the
* corresponding hardware support. videos will be performed colorspace
* conversion and scaling as well as rotation. For each of the requested
* sink pads it will compare the incoming geometry and framerate to define the
* output parameters. Indeed output video frames will have the geometry of the
* biggest incoming video stream and the framerate of the fastest incoming one.
*
* Individual parameters for each input stream can be configured on the
* #GstImxCompositorPad.
* <itemizedlist>
* <listitem>
* "xpos": The x-coordinate position of the top-left corner of the picture
* (#gint)
* </listitem>
* <listitem>
* "ypos": The y-coordinate position of the top-left corner of the picture
* (#gint)
* </listitem>
* <listitem>
* "width": The width of the picture; the input will be scaled if necessary
* (#gint)
* </listitem>
* <listitem>
* "height": The height of the picture; the input will be scaled if necessary
* (#gint)
* </listitem>
* <listitem>
* "alpha": The transparency of the picture; between 0.0 and 1.0. This feature
* depends on the underlying hardware, if hardware don't support, then alpha
* will be ignored
* (#gdouble)
* </listitem>
* <listitem>
* "rotate": The rotation of the picture in the composition
* (#guint)
* </listitem>
* <listitem>
* "keep-ratio": Keep the aspect ratio of the picture after resize
* (#gboolean)
* </listitem>
* <listitem>
* "zorder": The z-order position of the picture in the composition
* (#guint)
* </listitem>
* </itemizedlist>
*
* <refsect2>
* <title>Sample pipelines</title>
* |[
* gst-launch-1.0 imxcompositor_pxp background=0x0000FFFF name=comp
* sink_0::alpha=0.6
* sink_1::alpha=0.8 sink_1::xpos=100 sink_1::ypos=120
* sink_2::xpos=320 sink_2::ypos=240 ! imxv4l2sink
* videotestsrc ! video/x-raw,format=RGB16,width=320,height=240 ! comp.sink_0
* videotestsrc ! video/x-raw,format=RGB16,width=800, height=600 ! comp.sink_1
* videotestsrc ! video/x-raw, width=1280, height=720 ! comp.sink_2
* ]| A pipeline to demonstrate imxcompositor_pxp
* This should show a color bar 320x240 with alpha 0.6
* showing the yellow background. showing a color bar 800x600 at (100,120) with
* alpha 0.8 overlapped with previous one. showing a color bar 1280x720 at
* (320,240) with alpha 1.0 overlapped with previous one.
* |[
* gst-launch-1.0 imxcompositor_ipu background=0x0000FFFF name=comp
* sink_0::xpos=0 sink_0::ypos=0
* sink_1::xpos=96 sink_1::ypos=96 sink_1::width=800 sink_1::height=400
* sink_2::xpos=400 sink_2::ypos=300 sink_2::width=400 sink_2::height=300
* ! video/x-raw,format=RGBx,width=1024,height=768 ! overlaysink
* videotestsrc ! video/x-raw,format=RGB16,width=320,height=240 ! comp.sink_0
* videotestsrc ! video/x-raw,format=RGB16,width=1080,height=720 ! comp.sink_1
* videotestsrc ! video/x-raw, width=800, height=400 ! comp.sink_2
* ]|A pipeline using imxcompositor_ipu to composite videos with scaling and
* blending
* |[
* gst-launch-1.0 imxcompositor_g2d background=0x00FFFFFF name=comp
* sink_0::alpha=0.6 sink_0::xpos=50 sink_0::ypos=50 sink_0::width=1280
* sink_0::height=720
* sink_1::alpha=0.8 sink_1::xpos=300 sink_1::ypos=400 sink_1::width=800
* sink_1::height=540 sink_1::rotate=1
* sink_2::alpha=0.7 sink_2::xpos=800 sink_2::ypos=500 sink_2::width=640
* sink_2::height=480
* sink_3::xpos=900 sink_3::ypos=200 sink_3::alpha=0.5 sink_3::width=720
* sink_3::height=480 ! overlaysink sync=false
* uridecodebin uri=file://$FILE1 ! comp.sink_0
* uridecodebin uri=file://$FILE2 ! comp.sink_1
* uridecodebin uri=file://$FILE3 ! comp.sink_2
* videotestsrc ! video/x-raw,format=RGB16,width=1280,height=720 ! comp.sink_3
* ]| A pipeline using imxcompositor_g2d to composite video from decoders and
* videotestsrc by scaling, rotation and alpha blending
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <gst/allocators/gstdmabuf.h>
#include <gst/allocators/gstallocatorphymem.h>
#include <gst/allocators/gstphymemmeta.h>
#ifdef USE_ION
#include <gst/allocators/gstionmemory.h>
#endif
#include "gstimxcompositor.h"
#include "gstimxcompositorpad.h"
//#define USE_GST_VIDEO_SAMPLE_CONVERT //bad performance
#define IMX_COMPOSITOR_INPUT_POOL_MIN_BUFFERS 1
#define IMX_COMPOSITOR_INPUT_POOL_MAX_BUFFERS 30
#define IMX_COMPOSITOR_OUTPUT_POOL_MIN_BUFFERS 3
#define IMX_COMPOSITOR_OUTPUT_POOL_MAX_BUFFERS 30
#define IMX_COMPOSITOR_COMPOMETA_DEFAULT FALSE
#define IMX_COMPOSITOR_CSC_LOSS_FACTOR 5 // 0 ~ 10
#define IMX_COMPOSITOR_CSC_COMPLEX_FACTOR (10 - IMX_COMPOSITOR_CSC_LOSS_FACTOR)
#define DEFAULT_IMXCOMPOSITOR_BACKGROUND 0x00000000
#define GST_IMX_COMPOSITOR_PARAMS_QDATA \
g_quark_from_static_string("imxcompositor-params")
#define GST_IMX_COMPOSITOR_UNREF_BUFFER(buffer) {\
if (buffer) { \
GST_LOG ("unref buffer (%p)", buffer); \
gst_buffer_unref(buffer); \
buffer = NULL; \
} \
}
#define GST_IMX_COMPOSITOR_UNREF_POOL(pool) { \
if (pool) { \
GST_LOG ("unref pool (%p)", pool); \
gst_buffer_pool_set_active (pool, FALSE);\
gst_object_unref(pool); \
pool = NULL; \
} \
}
GST_DEBUG_CATEGORY_STATIC (gst_imxcompositor_debug);
#define GST_CAT_DEFAULT gst_imxcompositor_debug
/* properties utility*/
enum {
PROP_0,
#if 0
PROP_IMXCOMPOSITOR_OUTPUT_WIDTH,
PROP_IMXCOMPOSITOR_OUTPUT_HEIGHT,
#endif
PROP_IMXCOMPOSITOR_BACKGROUND_ENABLE,
PROP_IMXCOMPOSITOR_BACKGROUND_COLOR,
PROP_IMXCOMPOSITOR_COMPOSITION_META_ENABLE
};
static GstElementClass *parent_class = NULL;
static void gst_imxcompositor_finalize (GObject * object)
{
GstImxCompositor *imxcomp = (GstImxCompositor *)(object);
GstStructure *config;
GstImxCompositorClass *klass =
(GstImxCompositorClass *) G_OBJECT_GET_CLASS (imxcomp);
imx_video_overlay_composition_deinit(&imxcomp->video_comp);
GST_IMX_COMPOSITOR_UNREF_POOL (imxcomp->out_pool);
if (imxcomp->allocator) {
gst_object_unref (imxcomp->allocator);
imxcomp->allocator = NULL;
}
if (imxcomp->device) {
imxcomp->device->close(imxcomp->device);
if (klass->in_plugin)
klass->in_plugin->destroy(imxcomp->device);
imxcomp->device = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize ((GObject *) (imxcomp));
}
static void
gst_imxcompositor_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
GstImxCompositor *imxcomp = (GstImxCompositor *) (object);
switch (prop_id) {
case PROP_IMXCOMPOSITOR_BACKGROUND_ENABLE:
g_value_set_boolean(value, imxcomp->background_enable);
break;
case PROP_IMXCOMPOSITOR_BACKGROUND_COLOR:
g_value_set_uint (value, imxcomp->background);
break;
case PROP_IMXCOMPOSITOR_COMPOSITION_META_ENABLE:
g_value_set_boolean(value, imxcomp->composition_meta_enable);
break;
#if 0
case PROP_IMXCOMPOSITOR_OUTPUT_WIDTH:
g_value_set_uint (value, imxcomp->width);
break;
case PROP_IMXCOMPOSITOR_OUTPUT_HEIGHT:
g_value_set_uint (value, imxcomp->height);
break;
#endif
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_imxcompositor_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstImxCompositor *imxcomp = (GstImxCompositor *) (object);
switch (prop_id) {
case PROP_IMXCOMPOSITOR_BACKGROUND_ENABLE:
imxcomp->background_enable = g_value_get_boolean(value);
break;
case PROP_IMXCOMPOSITOR_BACKGROUND_COLOR:
imxcomp->background = g_value_get_uint (value);
break;
case PROP_IMXCOMPOSITOR_COMPOSITION_META_ENABLE:
imxcomp->composition_meta_enable = g_value_get_boolean(value);
break;
#if 0
case PROP_IMXCOMPOSITOR_OUTPUT_WIDTH:
imxcomp->width = g_value_get_uint (value);
break;
case PROP_IMXCOMPOSITOR_OUTPUT_HEIGHT:
imxcomp->height = g_value_get_uint (value);
break;
#endif
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_imxcompositor_set_pool_alignment(GstCaps *caps, GstBufferPool *pool)
{
GstVideoInfo info;
GstVideoAlignment alignment;
GstStructure *config = gst_buffer_pool_get_config(pool);
gst_video_info_from_caps (&info, caps);
memset (&alignment, 0, sizeof (GstVideoAlignment));
gint w = GST_VIDEO_INFO_WIDTH (&info);
gint h = GST_VIDEO_INFO_HEIGHT (&info);
if (!ISALIGNED (w, ALIGNMENT) || !ISALIGNED (h, ALIGNMENT)) {
alignment.padding_right = ALIGNTO (w, ALIGNMENT) - w;
alignment.padding_bottom = ALIGNTO (h, ALIGNMENT) - h;
}
GST_DEBUG ("pool(%p), [%d, %d]:padding_right (%d), padding_bottom (%d)",
pool, w, h, alignment.padding_right, alignment.padding_bottom);
if (!gst_buffer_pool_config_has_option (config, \
GST_BUFFER_POOL_OPTION_VIDEO_META)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
if (!gst_buffer_pool_config_has_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
}
gst_buffer_pool_config_set_video_alignment (config, &alignment);
gst_buffer_pool_set_config(pool, config);
}
static GstBufferPool*
gst_imxcompositor_create_bufferpool(GstImxCompositor *imxcomp,
GstCaps *caps, guint size, guint min, guint max)
{
GstBufferPool *pool;
GstStructure *config;
pool = gst_video_buffer_pool_new ();
if (pool) {
if (!imxcomp->allocator) {
#ifdef USE_ION
imxcomp->allocator = gst_ion_allocator_obtain ();
#endif
}
if (!imxcomp->allocator)
imxcomp->allocator =
gst_imx_2d_device_allocator_new((gpointer)(imxcomp->device));
if (!imxcomp->allocator) {
GST_ERROR ("new imx compositor allocator failed.");
gst_buffer_pool_set_active (pool, FALSE);
gst_object_unref (pool);
return NULL;
}
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_set_params(config, caps, size, min, max);
gst_buffer_pool_config_set_allocator(config, imxcomp->allocator, NULL);
gst_buffer_pool_config_add_option(config,GST_BUFFER_POOL_OPTION_VIDEO_META);
if (!gst_buffer_pool_set_config(pool, config)) {
GST_ERROR ("set buffer pool config failed.");
gst_buffer_pool_set_active (pool, FALSE);
gst_object_unref (pool);
return NULL;
}
}
gst_imxcompositor_set_pool_alignment(caps, pool);
GST_LOG ("created a buffer pool (%p).", pool);
return pool;
}
static gboolean
gst_imxcompositor_sink_query (GstAggregator * agg, GstAggregatorPad * bpad,
GstQuery * query)
{
gboolean ret = FALSE;
GstImxCompositor *imxcomp = (GstImxCompositor *) (agg);
GST_TRACE ("QUERY %" GST_PTR_FORMAT, query);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_ALLOCATION:
{
GstImxCompositorPad *imxcompo_pad = GST_IMXCOMPOSITOR_PAD (bpad);
GstCaps *pool_caps = NULL;
GstStructure *config = NULL;
GstCaps *caps;
gboolean need_pool = FALSE;
GstBufferPool *pool = NULL;
GstVideoInfo info;
guint size = 0;
gst_query_parse_allocation (query, &caps, &need_pool);
if (caps == NULL) {
GST_WARNING_OBJECT (bpad, "no caps specified");
return FALSE;
}
GST_DEBUG_OBJECT(bpad, "query allocation, caps: %" GST_PTR_FORMAT, caps);
// proposal allocation pool
if (imxcompo_pad->sink_pool) {
config = gst_buffer_pool_get_config (imxcompo_pad->sink_pool);
gst_buffer_pool_config_get_params(config, &pool_caps, &size, NULL, NULL);
if (gst_caps_is_equal(pool_caps, caps)) {
pool = imxcompo_pad->sink_pool;
need_pool = FALSE;
}
}
if (need_pool) {
if (!gst_video_info_from_caps (&info, caps))
return FALSE;
size = GST_VIDEO_INFO_SIZE (&info);
pool = gst_imxcompositor_create_bufferpool(imxcomp, caps, size,
IMX_COMPOSITOR_INPUT_POOL_MIN_BUFFERS,
IMX_COMPOSITOR_INPUT_POOL_MAX_BUFFERS);
if (pool) {
GST_IMX_COMPOSITOR_UNREF_POOL(imxcompo_pad->sink_pool);
imxcompo_pad->sink_pool = pool;
imxcompo_pad->sink_pool_update = TRUE;
}
}
if (pool) {
GST_DEBUG_OBJECT (bpad, "propose_allocation, pool(%p).", pool);
GstStructure *config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, &caps, &size, NULL, NULL);
gst_structure_free (config);
gst_query_add_allocation_pool (query, pool, size,
IMX_COMPOSITOR_INPUT_POOL_MIN_BUFFERS,
IMX_COMPOSITOR_INPUT_POOL_MAX_BUFFERS);
gst_query_add_allocation_param (query, imxcomp->allocator, NULL);
}
gst_query_add_allocation_meta(query, GST_VIDEO_META_API_TYPE, 0);
gst_query_add_allocation_meta(query,GST_VIDEO_CROP_META_API_TYPE, NULL);
if (imxcomp->composition_meta_enable)
imx_video_overlay_composition_add_query_meta (query);
GST_DEBUG_OBJECT (bpad, "ALLOCATION ret %p, %"
GST_PTR_FORMAT, imxcompo_pad->sink_pool, query);
ret = TRUE;
break;
}
case GST_QUERY_CAPS:
{
GstCaps *filter, *caps;
GstCaps *srccaps;
GstCaps *sink_template;
gst_query_parse_caps (query, &filter);
GstCaps *filtered_caps;
GstStructure *s;
gint i, n;
srccaps = gst_pad_get_current_caps (GST_PAD (agg->srcpad));
if (srccaps == NULL)
srccaps = gst_pad_get_pad_template_caps (GST_PAD (agg->srcpad));
srccaps = gst_caps_make_writable (srccaps);
n = gst_caps_get_size (srccaps);
for (i = 0; i < n; i++) {
s = gst_caps_get_structure (srccaps, i);
gst_structure_set (s, "width", GST_TYPE_INT_RANGE, 64, G_MAXINT32,
"height", GST_TYPE_INT_RANGE, 64, G_MAXINT32,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT32, 1, NULL);
gst_structure_remove_fields (s, "colorimetry", "chroma-site", "format",
"pixel-aspect-ratio", NULL);
}
sink_template = gst_pad_get_pad_template_caps (GST_PAD (bpad));
filtered_caps = gst_caps_intersect(srccaps, sink_template);
GST_LOG_OBJECT(bpad, "srccaps: %" GST_PTR_FORMAT, srccaps);
GST_LOG_OBJECT(bpad, "sink_template: %" GST_PTR_FORMAT, sink_template);
GST_LOG_OBJECT(bpad, "filtered_caps: %" GST_PTR_FORMAT, filtered_caps);
if (imxcomp->composition_meta_enable)
imx_video_overlay_composition_add_caps(filtered_caps);
else
imx_video_overlay_composition_remove_caps(filtered_caps);
if (filter)
caps = gst_caps_intersect (filtered_caps, filter);
else
caps = filtered_caps;
GST_LOG_OBJECT(bpad, "query sink caps: %" GST_PTR_FORMAT, caps);
gst_query_set_caps_result (query, caps);
if (filter)
gst_caps_unref (filtered_caps);
gst_caps_unref (srccaps);
gst_caps_unref (sink_template);
gst_caps_unref (caps);
ret = TRUE;
break;
}
case GST_QUERY_ACCEPT_CAPS:
{
GstCaps *caps;
gst_query_parse_accept_caps (query, &caps);
GstCaps *accepted_caps;
GstCaps *sink_template;
GstCaps *srccaps;
gint i, n;
GstStructure *s;
GST_DEBUG_OBJECT (bpad, "%" GST_PTR_FORMAT, caps);
srccaps = gst_pad_get_current_caps (GST_PAD (agg->srcpad));
if (srccaps == NULL)
srccaps = gst_pad_get_pad_template_caps (GST_PAD (agg->srcpad));
srccaps = gst_caps_make_writable (srccaps);
GST_LOG_OBJECT (bpad, "sink caps %" GST_PTR_FORMAT, srccaps);
n = gst_caps_get_size (srccaps);
for (i = 0; i < n; i++) {
s = gst_caps_get_structure (srccaps, i);
gst_structure_set (s, "width", GST_TYPE_INT_RANGE, 64, G_MAXINT32,
"height", GST_TYPE_INT_RANGE, 64, G_MAXINT32,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT32, 1, NULL);
gst_structure_remove_fields (s, "colorimetry", "chroma-site", "format",
"pixel-aspect-ratio", NULL);
}
sink_template = gst_pad_get_pad_template_caps (GST_PAD (bpad));
accepted_caps = gst_caps_intersect(srccaps, sink_template);
gst_caps_unref(srccaps);
ret = gst_caps_can_intersect (caps, accepted_caps);
GST_DEBUG_OBJECT (bpad, "%saccepted caps %" GST_PTR_FORMAT,
(ret ? "" : "not "), caps);
gst_caps_unref (accepted_caps);
gst_caps_unref (sink_template);
gst_query_set_accept_caps_result (query, ret);
ret = TRUE;
break;
}
default:
ret = GST_AGGREGATOR_CLASS (parent_class)->sink_query (agg, bpad, query);
break;
}
return ret;
}
static gint get_format_csc_loss(GstVideoFormat in_name, GstVideoFormat out_name)
{
#define SCORE_FORMAT_CHANGE 1
#define SCORE_COLORSPACE_LOSS 2 /* RGB <-> YUV */
#define SCORE_ALPHA_LOSS 4 /* lose the alpha channel */
#define SCORE_DEPTH_LOSS 8 /* change bit depth */
#define SCORE_CHROMA_W_LOSS 4 /* vertical sub-sample */
#define SCORE_CHROMA_H_LOSS 8 /* horizontal sub-sample */
#define SCORE_COLOR_LOSS 16 /* convert to GRAY */
#define COLORSPACE_MASK (GST_VIDEO_FORMAT_FLAG_YUV | \
GST_VIDEO_FORMAT_FLAG_RGB | GST_VIDEO_FORMAT_FLAG_GRAY)
#define LOSS_MAX (SCORE_FORMAT_CHANGE + SCORE_COLORSPACE_LOSS + \
SCORE_ALPHA_LOSS + SCORE_DEPTH_LOSS + SCORE_CHROMA_W_LOSS + \
SCORE_CHROMA_H_LOSS + SCORE_COLOR_LOSS)
gint loss = LOSS_MAX;
GstVideoFormatFlags in_flags, out_flags;
const GstVideoFormatInfo *in_info = gst_video_format_get_info(in_name);
const GstVideoFormatInfo *out_info = gst_video_format_get_info(out_name);
if (!in_info || !out_info)
return loss;
if (in_info == out_info)
return 0;
loss = SCORE_FORMAT_CHANGE;
in_flags = GST_VIDEO_FORMAT_INFO_FLAGS (in_info);
out_flags = GST_VIDEO_FORMAT_INFO_FLAGS (out_info);
if ((out_flags & COLORSPACE_MASK) != (in_flags & COLORSPACE_MASK)) {
loss += SCORE_COLORSPACE_LOSS;
if (out_flags & GST_VIDEO_FORMAT_FLAG_GRAY)
loss += SCORE_COLOR_LOSS;
}
if ((in_flags & GST_VIDEO_FORMAT_FLAG_ALPHA) &&
!(out_flags & GST_VIDEO_FORMAT_FLAG_ALPHA))
loss += SCORE_ALPHA_LOSS;
if ((out_flags & GST_VIDEO_FORMAT_FLAG_YUV)
&& (in_flags & GST_VIDEO_FORMAT_FLAG_YUV)) {
if ((in_info->h_sub[1]) < (out_info->h_sub[1]))
loss += SCORE_CHROMA_H_LOSS;
if ((in_info->w_sub[1]) < (out_info->w_sub[1]))
loss += SCORE_CHROMA_W_LOSS;
}
if ((in_info->bits) > (out_info->bits))
loss += SCORE_DEPTH_LOSS;
GST_LOG("%s -> %s, loss = %d", GST_VIDEO_FORMAT_INFO_NAME(in_info),
GST_VIDEO_FORMAT_INFO_NAME(out_info), loss);
return loss;
}
static gint get_format_csc_complexity(GstVideoFormat in_name,
GstVideoFormat out_name)
{
#define COMPLEX_FORMAT_CHANGE 1
#define COMPLEX_DEPTH_CHANGE 2
#define COMPLEX_ALPHA_CHANGE 2
#define COMPLEX_CHROMA_W_CHANGE 4
#define COMPLEX_CHROMA_H_CHANGE 4
#define COMPLEX_COLORSPACE_CHANGE 8 /* RGB <-> YUV */
#define COMPLEX_COLOR_CHANGE 2 /* RGB/YUV <-> GRAY */
#define COMPLEX_MAX (COMPLEX_FORMAT_CHANGE + COMPLEX_DEPTH_CHANGE +\
COMPLEX_ALPHA_CHANGE + COMPLEX_CHROMA_W_CHANGE + COMPLEX_CHROMA_H_CHANGE +\
COMPLEX_COLORSPACE_CHANGE + COMPLEX_COLOR_CHANGE)
gint complex = COMPLEX_MAX;
GstVideoFormatFlags in_flags, out_flags;
const GstVideoFormatInfo *in_info = gst_video_format_get_info(in_name);
const GstVideoFormatInfo *out_info = gst_video_format_get_info(out_name);
if (!in_info || !out_info)
return complex;
if (in_info == out_info)
return 0;
complex = COMPLEX_FORMAT_CHANGE;
in_flags = GST_VIDEO_FORMAT_INFO_FLAGS (in_info);
out_flags = GST_VIDEO_FORMAT_INFO_FLAGS (out_info);
if ((out_flags & (GST_VIDEO_FORMAT_FLAG_YUV|GST_VIDEO_FORMAT_FLAG_RGB))
!= (in_flags & (GST_VIDEO_FORMAT_FLAG_YUV|GST_VIDEO_FORMAT_FLAG_RGB)))
complex += COMPLEX_COLORSPACE_CHANGE;
if ((out_flags & GST_VIDEO_FORMAT_FLAG_GRAY)
!= (in_flags & GST_VIDEO_FORMAT_FLAG_GRAY)) {
complex += COMPLEX_COLOR_CHANGE;
if ((in_flags & GST_VIDEO_FORMAT_FLAG_RGB)
|| (out_flags & GST_VIDEO_FORMAT_FLAG_RGB))
complex += COMPLEX_COLOR_CHANGE;
}
if ((out_flags & GST_VIDEO_FORMAT_FLAG_ALPHA)
!= (in_flags & GST_VIDEO_FORMAT_FLAG_ALPHA))
complex += COMPLEX_ALPHA_CHANGE;
if ((out_flags & GST_VIDEO_FORMAT_FLAG_YUV)
&& (in_flags & GST_VIDEO_FORMAT_FLAG_YUV)) {
if ((in_info->h_sub[1]) != (out_info->h_sub[1]))
complex += COMPLEX_CHROMA_H_CHANGE;
if ((in_info->w_sub[1]) != (out_info->w_sub[1]))
complex += COMPLEX_CHROMA_W_CHANGE;
}
if ((in_info->bits) != (out_info->bits))
complex += COMPLEX_DEPTH_CHANGE;
GST_LOG("%s -> %s, complex = %d", GST_VIDEO_FORMAT_INFO_NAME(in_info),
GST_VIDEO_FORMAT_INFO_NAME(out_info), complex);
return complex;
}
static GstVideoFormat find_best_src_format(GstAggregator *vagg, GstCaps *o_caps)
{
#define COMPLEX_ROTATE_FACTOR 1
#define COMPLEX_SCALE_FACTOR 1
GList *l;
gint factor_min = G_MAXINT32;
GstVideoFormat best_fmt = GST_VIDEO_FORMAT_UNKNOWN;
if (!(GST_ELEMENT (vagg)->sinkpads)) {
GST_DEBUG("no sink pad yet");
return best_fmt;
}
if (!o_caps || gst_caps_is_empty (o_caps)) {
return best_fmt;
}
GstCaps *caps = gst_caps_normalize(o_caps);
GST_DEBUG ("gst_caps_normalize caps: %" GST_PTR_FORMAT, caps);
GST_OBJECT_LOCK (vagg);
gint n = gst_caps_get_size (caps) - 1;
for (; n >= 0; n--) {
GstStructure *s = gst_caps_get_structure (caps, n);
const gchar *fmt = gst_structure_get_string(s, "format");
GstVideoFormat o_fmt = gst_video_format_from_string(fmt);
gint factor = 0;
GstVideoFormat i_fmt;
for (l = GST_ELEMENT (vagg)->sinkpads; l; l = l->next) {
GstVideoAggregatorPad *vaggpad = l->data;
GstImxCompositorPad *pad = GST_IMXCOMPOSITOR_PAD (vaggpad);
gint width = GST_VIDEO_INFO_WIDTH (&vaggpad->info);
gint height = GST_VIDEO_INFO_HEIGHT (&vaggpad->info);
if (vaggpad->info.finfo)
i_fmt = GST_VIDEO_INFO_FORMAT(&vaggpad->info);
else
continue;
if (i_fmt == GST_VIDEO_FORMAT_UNKNOWN)
continue;
gint resol = width * height;
gint complex = 0;
gint loss = 0;
if (resol == 0)
continue;
if ((pad->width && pad->width != width)
|| (pad->height && pad->height != height))
complex += resol * COMPLEX_SCALE_FACTOR;
if (pad->rotate != IMX_2D_ROTATION_0)
complex += resol * COMPLEX_ROTATE_FACTOR;
complex += resol * get_format_csc_complexity(i_fmt, o_fmt);
loss = resol * get_format_csc_loss(i_fmt, o_fmt);
factor += IMX_COMPOSITOR_CSC_LOSS_FACTOR * loss;
factor += IMX_COMPOSITOR_CSC_COMPLEX_FACTOR * complex;
}
GST_LOG("fmt %s factor %d", fmt, factor);
if (factor < factor_min) {
best_fmt = o_fmt;
factor_min = factor;
}
}
GST_OBJECT_UNLOCK (vagg);
return best_fmt;
}
static gboolean
gst_imxcompositor_src_query (GstAggregator * agg, GstQuery * query)
{
gboolean res = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:
{
GstCaps *filter, *caps, *tmp;
GstStructure *s;
gint n;
GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (agg);
gst_query_parse_caps (query, &filter);
if (GST_VIDEO_INFO_FORMAT (&vagg->info) != GST_VIDEO_FORMAT_UNKNOWN)
caps = gst_video_info_to_caps (&vagg->info);
else
caps = gst_pad_get_pad_template_caps (agg->srcpad);
caps = gst_caps_make_writable (caps);
n = gst_caps_get_size (caps) - 1;
for (; n >= 0; n--) {
s = gst_caps_get_structure (caps, n);
gst_structure_set (s, "width", GST_TYPE_INT_RANGE, 64, G_MAXINT32,
"height", GST_TYPE_INT_RANGE, 64, G_MAXINT32, NULL);
if (GST_VIDEO_INFO_FPS_D (&vagg->info) != 0) {
gst_structure_set (s,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT32, 1, NULL);
}
}
if (filter) {
tmp = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref(caps);
caps = tmp;
}
gst_query_set_caps_result (query, caps);
GST_DEBUG ("query src caps: %" GST_PTR_FORMAT, caps);
gst_caps_unref (caps);
res = TRUE;
break;
}
default:
res = GST_AGGREGATOR_CLASS (parent_class)->src_query (agg, query);
break;
}
return res;
}
static gboolean
gst_imxcompositor_negotiated_caps (GstVideoAggregator * vagg, GstCaps * caps)
{
GstImxCompositor *imxcomp = (GstImxCompositor *) (vagg);
GstQuery *query;
gboolean result = TRUE;
GstStructure *config = NULL;
guint size, num, min = 0, max = 0;
GstAggregator *agg = GST_AGGREGATOR (imxcomp);
GST_DEBUG("negotiated caps: %" GST_PTR_FORMAT, caps);
if (imxcomp->self_out_pool) {
GstCaps *pool_caps;
config = gst_buffer_pool_get_config (imxcomp->self_out_pool);
gst_buffer_pool_config_get_params(config, &pool_caps, &size, &min, &max);
if (gst_caps_is_equal(pool_caps, caps)) {
gst_structure_free (config);
imxcomp->out_pool = imxcomp->self_out_pool;
return TRUE;
}
gst_structure_free (config);
}
/* find a pool for the negotiated caps now */
GST_DEBUG_OBJECT (imxcomp, "doing allocation query");
query = gst_query_new_allocation (caps, TRUE);
if (!gst_pad_peer_query (agg->srcpad, query)) {
// nothing, just print
GST_DEBUG_OBJECT (imxcomp, "peer ALLOCATION query failed");
}
GstBufferPool *pool = NULL;
GstVideoInfo vinfo;
GstAllocator *allocator = NULL;
gst_video_info_init(&vinfo);
gst_video_info_from_caps(&vinfo, caps);
size = vinfo.size;
num = gst_query_get_n_allocation_pools(query);
GST_DEBUG_OBJECT(imxcomp, "number of allocation pools: %d", num);
/* if downstream element provided buffer pool with phy buffers */
if (num > 0) {
guint i = 0;
while (i < num ) {
gst_query_parse_nth_allocation_pool(query, i, &pool, &size, &min, &max);
if (pool) {
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_get_allocator(config, &allocator, NULL);
if (allocator && GST_IS_ALLOCATOR_PHYMEM(allocator)) {
gst_imxcompositor_set_pool_alignment(caps, pool);
if (min < IMX_COMPOSITOR_OUTPUT_POOL_MIN_BUFFERS)
min = IMX_COMPOSITOR_OUTPUT_POOL_MIN_BUFFERS;
max = IMX_COMPOSITOR_OUTPUT_POOL_MAX_BUFFERS;
gst_buffer_pool_config_set_params (config, caps, size, min, max);
gst_buffer_pool_set_config (pool, config);
GST_IMX_COMPOSITOR_UNREF_POOL (imxcomp->out_pool);
imxcomp->out_pool = pool;
gst_query_unref (query);
imxcomp->negotiated = TRUE;
imxcomp->out_pool_update = TRUE;
return TRUE;
} else {
GST_LOG_OBJECT (imxcomp, "no phy allocator in output pool (%p)",pool);
}
if (config) {
gst_structure_free (config);
config = NULL;
}
if (allocator) {
gst_object_unref (allocator);
allocator = NULL;
}
gst_object_unref (pool);
}
i++;
}
}
gst_query_unref (query);
size = PAGE_ALIGN(MAX(size, vinfo.size));
/* downstream doesn't provide a pool or the pool has no ability to allocate
* physical memory buffers, we need create new pool */
GST_DEBUG_OBJECT(imxcomp, "creating new output pool");
pool = gst_imxcompositor_create_bufferpool(imxcomp, caps, size,
IMX_COMPOSITOR_OUTPUT_POOL_MIN_BUFFERS,
IMX_COMPOSITOR_OUTPUT_POOL_MAX_BUFFERS);
if (pool) {
if (imxcomp->self_out_pool != imxcomp->out_pool) {
GST_IMX_COMPOSITOR_UNREF_POOL(imxcomp->self_out_pool);
GST_IMX_COMPOSITOR_UNREF_POOL (imxcomp->out_pool);
} else {
GST_IMX_COMPOSITOR_UNREF_POOL(imxcomp->self_out_pool);
}
imxcomp->self_out_pool = pool;
imxcomp->out_pool = pool;
gst_buffer_pool_set_active(pool, TRUE);
GST_DEBUG_OBJECT(imxcomp, "pool config: outcaps: %" GST_PTR_FORMAT " "
"size: %u min buffers: %u max buffers: %u", caps, size,
IMX_COMPOSITOR_OUTPUT_POOL_MIN_BUFFERS,
IMX_COMPOSITOR_OUTPUT_POOL_MAX_BUFFERS);
imxcomp->negotiated = TRUE;
imxcomp->out_pool_update = TRUE;
} else {
GST_WARNING_OBJECT (imxcomp, "Failed to decide allocation");
imxcomp->negotiated = FALSE;
}
return imxcomp->negotiated;
}
static GstFlowReturn
gst_imxcompositor_get_output_buffer (GstVideoAggregator * vagg,
GstBuffer ** outbuf)
{
GstImxCompositor *imxcomp = (GstImxCompositor *) (vagg);
if (!gst_buffer_pool_set_active (imxcomp->out_pool, TRUE)) {
GST_ELEMENT_ERROR (imxcomp, RESOURCE, SETTINGS,
("failed to activate bufferpool"), ("failed to activate bufferpool"));
return GST_FLOW_ERROR;
}
GstFlowReturn ret =
gst_buffer_pool_acquire_buffer (imxcomp->out_pool, outbuf, NULL);
GST_LOG_OBJECT(imxcomp, "Get out buffer %p from pool %p",
*outbuf, imxcomp->out_pool);
return ret;
}
static void
gst_imxcompositor_find_best_format (
GstVideoAggregator * vagg, GstCaps * downstream_caps,
GstVideoInfo * best_info, gboolean * at_least_one_alpha)
{
#if 0
GstVideoInfo tmp_info;
GstVideoFormat best_fmt =
find_best_src_format(GST_AGGREGATOR(vagg), downstream_caps);
gst_video_info_set_format (&tmp_info, best_fmt, best_info->width,
best_info->height);
tmp_info.par_n = best_info->par_n;
tmp_info.par_d = best_info->par_d;
tmp_info.fps_n = best_info->fps_n;
tmp_info.fps_d = best_info->fps_d;
tmp_info.flags = best_info->flags;
tmp_info.interlace_mode = best_info->interlace_mode;
*best_info = tmp_info;
#endif
}
static GstCaps *
gst_imxcompositor_update_caps (GstVideoAggregator * vagg, GstCaps * caps,
GstCaps * filter)
{
GList *l;
gint best_width = -1, best_height = -1;
gdouble best_fps = -1, cur_fps;
gint best_fps_n = -1, best_fps_d = -1;
GstVideoInfo info;
GstCaps *ret = caps;
GstAggregator *agg = (GstAggregator*)vagg;
if (!gst_caps_is_fixed (caps)) {
GstCaps *tmp = gst_caps_fixate (gst_caps_ref (caps));
gst_video_info_from_caps (&info, tmp);
gst_caps_unref (tmp);
} else
gst_video_info_from_caps (&info, caps);
GstCaps *downstream_caps = gst_pad_get_allowed_caps (agg->srcpad);
if (!downstream_caps || gst_caps_is_empty (downstream_caps)) {
GST_INFO_OBJECT (vagg, "No downstream caps found %"
GST_PTR_FORMAT, downstream_caps);
if (downstream_caps)
gst_caps_unref (downstream_caps);
return ret;
}
GstVideoFormat best_fmt = find_best_src_format(agg, downstream_caps);
gst_caps_unref (downstream_caps);
/*
GstCaps *src_caps, *peer_caps;
src_caps = gst_pad_get_pad_template_caps (agg->srcpad);
peer_caps = gst_pad_peer_query_caps(agg->srcpad, NULL);
src_caps = gst_caps_intersect_full(peer_caps, src_caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (peer_caps);
GstVideoFormat best_fmt = find_best_src_format(agg, src_caps);
gst_caps_unref (src_caps);
*/
if (best_fmt != GST_VIDEO_FORMAT_UNKNOWN) {
gst_video_info_set_format (&info, best_fmt, GST_VIDEO_INFO_WIDTH(&info),
GST_VIDEO_INFO_HEIGHT(&info));
GST_DEBUG("Set best format %s", gst_video_format_to_string(best_fmt));
}
GST_OBJECT_LOCK (vagg);
for (l = GST_ELEMENT (vagg)->sinkpads; l; l = l->next) {
GstVideoAggregatorPad *vaggpad = l->data;
GstImxCompositorPad *pad = GST_IMXCOMPOSITOR_PAD (vaggpad);
gint this_width, this_height;
gint fps_n, fps_d;
gint width, height;
fps_n = GST_VIDEO_INFO_FPS_N (&vaggpad->info);
fps_d = GST_VIDEO_INFO_FPS_D (&vaggpad->info);
gst_imxcompositor_pad_get_output_size(vagg, pad, &width, &height);
if (width == 0 || height == 0)
continue;
if (pad->width)
width = pad->width;
if (pad->height)
height = pad->height;
this_width = width + MAX (pad->xpos, 0);
this_height = height + MAX (pad->ypos, 0);
if (best_width < this_width)
best_width = this_width;
if (best_height < this_height)
best_height = this_height;
if (fps_d == 0)
cur_fps = 0.0;
else
gst_util_fraction_to_double (fps_n, fps_d, &cur_fps);
if (best_fps < cur_fps) {
best_fps = cur_fps;
best_fps_n = fps_n;
best_fps_d = fps_d;
}
}
GST_OBJECT_UNLOCK (vagg);
if (best_fps_n <= 0 || best_fps_d <= 0 || best_fps == 0.0) {
best_fps_n = 25;
best_fps_d = 1;
best_fps = 25.0;
}
if (best_width > 0 && best_height > 0 && best_fps > 0) {
gst_video_info_set_format (&info, GST_VIDEO_INFO_FORMAT (&info),
best_width, best_height);
info.fps_n = best_fps_n;
info.fps_d = best_fps_d;
ret = gst_video_info_to_caps (&info);
GST_DEBUG("update output info %dx%d", best_width, best_height);
gst_caps_set_simple (ret, "pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE,
1, G_MAXINT32, G_MAXINT32, 1, NULL);
}
return ret;
}
static gint gst_imxcompositor_config_dst(GstImxCompositor *imxcomp,
GstBuffer * outbuf, Imx2DFrame *dst)
{
GstVideoFrame out_frame;
GstPhyMemMeta *phymemmeta = NULL;
guint i, n_mem;
if (!(gst_buffer_is_phymem(outbuf)
|| gst_is_dmabuf_memory (gst_buffer_peek_memory (outbuf, 0)))) {
GST_ERROR ("out buffer is not phy memory or DMA Buf");
return -1;
}
if (!gst_video_frame_map (&out_frame, &((GstVideoAggregator*)imxcomp)->info,
outbuf, GST_MAP_WRITE|GST_VIDEO_FRAME_MAP_FLAG_NO_REF)) {
GST_WARNING_OBJECT (imxcomp, "Could not map output buffer");
return -1;
}
if (imxcomp->out_pool_update) {
if (imxcomp->out_pool) {
GstStructure *config = gst_buffer_pool_get_config (imxcomp->out_pool);
memset (&imxcomp->out_align, 0, sizeof(GstVideoAlignment));
if (gst_buffer_pool_config_has_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT)) {
gst_buffer_pool_config_get_video_alignment (config,&imxcomp->out_align);
GST_DEBUG ("output pool has alignment (%d, %d) , (%d, %d)",
imxcomp->out_align.padding_left, imxcomp->out_align.padding_top,
imxcomp->out_align.padding_right,imxcomp->out_align.padding_bottom);
}
gst_structure_free (config);
}
/* set physical memory padding info */
if (imxcomp->self_out_pool
&& gst_buffer_is_writable (out_frame.buffer)) {
phymemmeta = GST_PHY_MEM_META_ADD (out_frame.buffer);
phymemmeta->x_padding = imxcomp->out_align.padding_right;
phymemmeta->y_padding = imxcomp->out_align.padding_bottom;
GST_DEBUG_OBJECT (imxcomp, "out physical memory meta x_padding: %d "
"y_padding: %d", phymemmeta->x_padding, phymemmeta->y_padding);
}
imxcomp->out_pool_update = FALSE;
}
dst->info.fmt = GST_VIDEO_INFO_FORMAT(&(out_frame.info));
dst->info.w = out_frame.info.width +
imxcomp->out_align.padding_left + imxcomp->out_align.padding_right;
dst->info.h = out_frame.info.height +
imxcomp->out_align.padding_top + imxcomp->out_align.padding_bottom;
dst->info.stride = out_frame.info.stride[0];
GST_LOG ("Output: %s, %dx%d",
GST_VIDEO_FORMAT_INFO_NAME(out_frame.info.finfo),
out_frame.info.width, out_frame.info.height);
if (imxcomp->device->config_output(imxcomp->device, &dst->info) < 0) {
GST_ERROR ("config output failed");
gst_video_frame_unmap (&out_frame);
return -1;
}
if (gst_is_dmabuf_memory (gst_buffer_peek_memory (out_frame.buffer, 0))) {
n_mem = gst_buffer_n_memory (out_frame.buffer);
for (i = 0; i < n_mem; i++)
dst->fd[i] = gst_dmabuf_memory_get_fd (gst_buffer_peek_memory (out_frame.buffer, i));
} else
dst->mem = gst_buffer_query_phymem_block (out_frame.buffer);
dst->alpha = 0xFF; //TODO how to use destination alpha?
dst->rotate = IMX_2D_ROTATION_0;
dst->interlace_type = IMX_2D_INTERLACE_PROGRESSIVE;
dst->crop.x = 0;
dst->crop.y = 0;
dst->crop.w = out_frame.info.width;
dst->crop.h = out_frame.info.height;
GstVideoCropMeta *out_crop = NULL;
out_crop = gst_buffer_get_video_crop_meta(out_frame.buffer);
if (out_crop != NULL) {
GST_LOG ("output crop meta: (%d, %d, %d, %d)", out_crop->x, out_crop->y,
out_crop->width, out_crop->height);
if ((out_crop->x >= out_frame.info.width)
|| (out_crop->y >= out_frame.info.height)) {
gst_video_frame_unmap (&out_frame);
return -1;
}
dst->crop.x += out_crop->x;
dst->crop.y += out_crop->y;
dst->crop.w = MIN(out_crop->width, (out_frame.info.width - out_crop->x));
dst->crop.h = MIN(out_crop->height,(out_frame.info.height-out_crop->y));
}
gst_video_frame_unmap (&out_frame);
return 0;
}
static gint gst_imxcompositor_config_src(GstImxCompositor *imxcomp,
GstImxCompositorPad *pad, Imx2DFrame *src)
{
GstVideoAggregatorPad *ppad = (GstVideoAggregatorPad *)pad;
guint i, n_mem;
src->info.fmt = GST_VIDEO_INFO_FORMAT(&(ppad->aggregated_frame->info));
src->info.w = ppad->aggregated_frame->info.width +
pad->align.padding_left + pad->align.padding_right;
src->info.h = ppad->aggregated_frame->info.height +
pad->align.padding_top + pad->align.padding_bottom;
src->info.stride = ppad->aggregated_frame->info.stride[0];
GST_LOG_OBJECT (pad, "Input: %s, %dx%d(%d), crop(%d,%d,%d,%d)",
GST_VIDEO_FORMAT_INFO_NAME(ppad->aggregated_frame->info.finfo),
src->info.w, src->info.h, src->info.stride,
pad->src_crop.x, pad->src_crop.y, pad->src_crop.w, pad->src_crop.h);
if (imxcomp->device->config_input(imxcomp->device, &src->info) < 0) {
GST_ERROR_OBJECT (pad, "config input failed");
return -1;
}
if (gst_is_dmabuf_memory (gst_buffer_peek_memory (ppad->aggregated_frame->buffer, 0))) {
n_mem = gst_buffer_n_memory (ppad->aggregated_frame->buffer);
for (i = 0; i < n_mem; i++)
src->fd[i] = gst_dmabuf_memory_get_fd (gst_buffer_peek_memory (ppad->aggregated_frame->buffer, i));
} else
src->mem = gst_buffer_query_phymem_block (ppad->aggregated_frame->buffer);
src->alpha = (gint)(pad->alpha * 255);
src->rotate = pad->rotate;
src->interlace_type = IMX_2D_INTERLACE_PROGRESSIVE;
src->crop.x = pad->src_crop.x;
src->crop.y = pad->src_crop.y;
src->crop.w = pad->src_crop.w;
src->crop.h = pad->src_crop.h;
return 0;
}
#ifdef USE_GST_VIDEO_SAMPLE_CONVERT
static void
gst_imxcompositor_fill_background(Imx2DFrame *dst, guint RGBA8888)
{
GstVideoInfo vinfo;
GstCaps *from_caps, *to_caps;
GstBuffer *from_buffer, *to_buffer;
GstSample *from_sample, *to_sample;
gint i;
GstMapInfo map;
from_buffer = gst_buffer_new_and_alloc (dst->info.stride * dst->info.h * 4);
gst_buffer_map (from_buffer, &map, GST_MAP_WRITE);
for (i = 0; i < dst->info.stride * dst->info.h; i++) {
map.data[4 * i + 0] = RGBA8888 & 0x000000FF;
map.data[4 * i + 1] = (RGBA8888 & 0x0000FF00) >> 8;
map.data[4 * i + 2] = (RGBA8888 & 0x00FF0000) >> 16;
map.data[4 * i + 3] = (RGBA8888 & 0xFF000000) >> 24;
}
gst_buffer_unmap (from_buffer, &map);
gst_video_info_init (&vinfo);
gst_video_info_set_format (&vinfo, GST_VIDEO_FORMAT_RGBA,
dst->info.w, dst->info.h);
from_caps = gst_video_info_to_caps (&vinfo);
from_sample = gst_sample_new (from_buffer, from_caps, NULL, NULL);
gst_video_info_set_format (&vinfo, dst->info.fmt, dst->info.w, dst->info.h);
to_caps = gst_video_info_to_caps (&vinfo);
to_sample = gst_video_convert_sample (from_sample, to_caps, GST_SECOND, NULL);
if (to_sample) {
to_buffer = gst_sample_get_buffer(to_sample);
gst_buffer_map (to_buffer, &map, GST_MAP_READ);
memcpy(dst->mem->vaddr, map.data, map.size);
gst_buffer_unmap(to_buffer, &map);
gst_sample_unref (to_sample);
}
gst_buffer_unref (from_buffer);
gst_caps_unref (from_caps);
gst_sample_unref (from_sample);
gst_caps_unref (to_caps);
}
#else
static void
gst_imxcompositor_fill_background(Imx2DFrame *dst, guint RGBA8888)
{
gchar *p = dst->mem->vaddr;
gint i;
gchar R,G,B,A,Y,U,V;
gdouble y,u,v;
R = RGBA8888 & 0x000000FF;
G = (RGBA8888 & 0x0000FF00) >> 8;
B = (RGBA8888 & 0x00FF0000) >> 16;
A = (RGBA8888 & 0xFF000000) >> 24;
//BT.709
y = (0.213*R + 0.715*G + 0.072*B);
u = -0.117*R - 0.394*G + 0.511*B + 128;
v = 0.511*R - 0.464*G - 0.047*B + 128;
if (y > 255.0)
Y = 255;
else
Y = (gchar)y;
if (u < 0.0)
U = 0;
else
U = (gchar)u;
if (u > 255.0)
U = 255;
else
U = (gchar)u;
if (v < 0.0)
V = 0;
else
V = (gchar)v;
if (v > 255.0)
V = 255;
else
V = (gchar)v;
GST_INFO("RGBA8888 to %s\n", gst_video_format_to_string(dst->info.fmt));
switch (dst->info.fmt) {
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_RGBA:
for (i = 0; i < dst->mem->size/4; i++) {
p[4 * i + 0] = R;
p[4 * i + 1] = G;
p[4 * i + 2] = B;
p[4 * i + 3] = A;
}
break;
case GST_VIDEO_FORMAT_BGR:
for (i = 0; i < dst->mem->size/3; i++) {
p[3 * i + 0] = B;
p[3 * i + 1] = G;
p[3 * i + 2] = R;
}
break;
case GST_VIDEO_FORMAT_RGB:
for (i = 0; i < dst->mem->size/3; i++) {
p[3 * i + 0] = R;
p[3 * i + 1] = G;
p[3 * i + 2] = B;
}
break;
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_BGRA:
for (i = 0; i < dst->mem->size/4; i++) {
p[4 * i + 0] = B;
p[4 * i + 1] = G;
p[4 * i + 2] = R;
p[4 * i + 3] = A;
}
break;
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_xBGR:
for (i = 0; i < dst->mem->size/4; i++) {
p[4 * i + 0] = A;
p[4 * i + 1] = B;
p[4 * i + 2] = G;
p[4 * i + 3] = R;
}
break;
case GST_VIDEO_FORMAT_RGB16:
for (i = 0; i < dst->mem->size/2; i++) {
p[2 * i + 0] = ((G<<3) & 0xE0) | (B>>3);
p[2 * i + 1] = (R & 0xF8) | (G>>5);
}
break;
case GST_VIDEO_FORMAT_BGR16:
for (i = 0; i < dst->mem->size/2; i++) {
p[2 * i + 0] = ((G<<3) & 0xE0) | (R>>3);
p[2 * i + 1] = (B & 0xF8) | (G>>5);
}
break;
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_xRGB:
for (i = 0; i < dst->mem->size/4; i++) {
p[4 * i + 0] = A;
p[4 * i + 1] = R;
p[4 * i + 2] = G;
p[4 * i + 3] = B;
}
break;
case GST_VIDEO_FORMAT_Y444:
memset(p, Y, dst->info.w*dst->info.h);
memset(p+dst->info.w*dst->info.h, U, dst->info.w*dst->info.h);
memset(p+dst->info.w*dst->info.h*2, V, dst->info.w*dst->info.h);
break;
case GST_VIDEO_FORMAT_I420:
memset(p, Y, dst->info.w*dst->info.h);
memset(p+dst->info.w*dst->info.h, U, dst->info.w*dst->info.h/4);
memset(p+dst->info.w*dst->info.h*5/4, V, dst->info.w*dst->info.h/4);
break;
case GST_VIDEO_FORMAT_YV12:
memset(p, Y, dst->info.w*dst->info.h);
memset(p+dst->info.w*dst->info.h, V, dst->info.w*dst->info.h/4);
memset(p+dst->info.w*dst->info.h*5/4, U, dst->info.w*dst->info.h/4);
break;
case GST_VIDEO_FORMAT_NV12:
memset(p, Y, dst->info.w*dst->info.h);
p += dst->info.w*dst->info.h;
for (i = 0; i < dst->info.w*dst->info.h/4; i++) {
*p++ = U;
*p++ = V;
}
break;
case GST_VIDEO_FORMAT_NV21:
memset(p, Y, dst->info.w*dst->info.h);
p += dst->info.w*dst->info.h;
for (i = 0; i < dst->info.w*dst->info.h/4; i++) {
*p++ = V;
*p++ = U;
}
break;
case GST_VIDEO_FORMAT_UYVY:
for (i = 0; i < dst->info.w*dst->info.h/2; i++) {
*p++ = U;
*p++ = Y;
*p++ = V;
*p++ = Y;
}
break;
case GST_VIDEO_FORMAT_Y42B:
memset(p, Y, dst->info.w*dst->info.h);
memset(p+dst->info.w*dst->info.h, U, dst->info.w*dst->info.h/2);
memset(p+dst->info.w*dst->info.h*3/2, V, dst->info.w*dst->info.h/2);
break;
case GST_VIDEO_FORMAT_v308:
for (i = 0; i < dst->info.w*dst->info.h; i++) {
*p++ = Y;
*p++ = U;
*p++ = V;
}
break;
case GST_VIDEO_FORMAT_GRAY8:
memset(p, Y, dst->info.w*dst->info.h);
break;
case GST_VIDEO_FORMAT_NV16:
memset(p, Y, dst->info.w*dst->info.h);
p += dst->info.w*dst->info.h;
for (i = 0; i < dst->info.w*dst->info.h/2; i++) {
*p++ = U;
*p++ = V;
}
break;
default:
GST_FIXME("Add support for %d", dst->info.fmt);
memset(dst->mem->vaddr, 0, dst->mem->size);
break;
}
}
#endif
static gint imxcompositor_pad_zorder_compare (gconstpointer a, gconstpointer b)
{
if (a && b) {
GstVideoAggregatorPad *pad_a = GST_VIDEO_AGGREGATOR_PAD (a);
GstVideoAggregatorPad *pad_b = GST_VIDEO_AGGREGATOR_PAD (b);
return (pad_a->zorder - pad_b->zorder);
} else {
return 0;
}
}
static GstFlowReturn
gst_imxcompositor_aggregate_frames (GstVideoAggregator * vagg,
GstBuffer * outbuf)
{
GList *l;
GstImxCompositor *imxcomp = (GstImxCompositor *) (vagg);
Imx2DDevice *device = imxcomp->device;
GstFlowReturn ret;
Imx2DFrame src = {0}, dst = {0};
PhyMemBlock src_mem = {0}, dst_mem = {0};
guint aggregated = 0;
if (!device)
return GST_FLOW_ERROR;
dst.mem = &dst_mem;
if (gst_imxcompositor_config_dst(imxcomp, outbuf, &dst) < 0)
return GST_FLOW_ERROR;
GST_OBJECT_LOCK (vagg);
/* TODO: If the frames to be composited completely obscure the background,
* don't bother drawing the background at all. */
if (imxcomp->background_enable) {
if (device->fill) {
if(device->fill (device, &dst, imxcomp->background) < 0) {
GST_LOG("fill color background by device failed");
gst_imxcompositor_fill_background(&dst, imxcomp->background);
}
} else {
GST_LOG("device has no fill interface");
gst_imxcompositor_fill_background(&dst, imxcomp->background);
}
} else {
//gst_imxcompositor_fill_background(&dst, DEFAULT_IMXCOMPOSITOR_BACKGROUND);
}
//re-order by zorder of pad
GList *pads = g_list_copy(GST_ELEMENT (vagg)->sinkpads);
pads = g_list_sort(pads, imxcompositor_pad_zorder_compare);
for (l = pads; l; l = l->next) {
GstVideoAggregatorPad *ppad = l->data;
GstImxCompositorPad *pad = GST_IMXCOMPOSITOR_PAD (ppad);
if (ppad->aggregated_frame != NULL) {
src.mem = &src_mem;
memset (src.mem, 0, sizeof(PhyMemBlock));
if (gst_imxcompositor_config_src(imxcomp, pad, &src) < 0) {
continue;
}
if (device->set_rotate(device, src.rotate) < 0) {
GST_WARNING_OBJECT (pad, "set rotate failed");
continue;
}
if (device->set_deinterlace(device, IMX_2D_DEINTERLACE_NONE) < 0) {
GST_WARNING_OBJECT (pad, "set deinterlace mode failed");
continue;
}
//update destination location and size
dst.crop.x = pad->dst_crop.x;
dst.crop.y = pad->dst_crop.y;
dst.crop.w = pad->dst_crop.w;
dst.crop.h = pad->dst_crop.h;
if (device->blend(device, &dst, &src) < 0) {
GST_WARNING_OBJECT (pad, "frame blend fail");
continue;
}
aggregated++;
if (imxcomp->composition_meta_enable &&
imx_video_overlay_composition_has_meta(ppad->buffer)) {
VideoCompositionVideoInfo in_v, out_v;
memset (&in_v, 0, sizeof(VideoCompositionVideoInfo));
memset (&out_v, 0, sizeof(VideoCompositionVideoInfo));
in_v.buf = ppad->buffer;
in_v.fmt = src.info.fmt;
in_v.width = src.info.w;
in_v.height = src.info.h;
in_v.stride = src.info.stride;
in_v.rotate = src.rotate;
in_v.crop_x = src.crop.x;
in_v.crop_y = src.crop.y;
in_v.crop_w = src.crop.w;
in_v.crop_h = src.crop.h;
out_v.mem = dst.mem;
out_v.fmt = dst.info.fmt;
out_v.width = dst.info.w;
out_v.height = dst.info.h;
out_v.stride = dst.info.stride;
out_v.rotate = IMX_2D_ROTATION_0;
out_v.crop_x = dst.crop.x;
out_v.crop_y = dst.crop.y;
out_v.crop_w = dst.crop.w;
out_v.crop_h = dst.crop.h;
memcpy(&out_v.align, &(imxcomp->out_align), sizeof(GstVideoAlignment));
gint cnt = imx_video_overlay_composition_composite(&imxcomp->video_comp,
&in_v, &out_v, FALSE);
if (cnt >= 0)
GST_DEBUG ("processed %d video overlay composition buffers", cnt);
else
GST_WARNING ("video overlay composition meta handling failed");
}
}
}
g_list_free(pads);
if (imxcomp->background_enable &&
device->device_type == IMX_2D_DEVICE_PXP && aggregated == 0) {
/* PXP can't fill background without blending something */
/* fill the background color by software */
gst_imxcompositor_fill_background(&dst, imxcomp->background);
}
GST_LOG("Aggregated %d frames", aggregated);
if (aggregated > 0 && device->blend_finish(device) < 0) {
GST_ERROR ("frame blend finish fail");
}
GST_OBJECT_UNLOCK (vagg);
return GST_FLOW_OK;
}
static GstCaps* imx_compositor_caps_from_fmt_list(GList* list)
{
gint i;
GstCaps *caps = NULL;
for (i=0; i<g_list_length (list); i++) {
GstVideoFormat fmt = (GstVideoFormat)g_list_nth_data(list, i);
if (caps) {
GstCaps *newcaps = gst_caps_new_simple("video/x-raw",
"format", G_TYPE_STRING, gst_video_format_to_string(fmt), NULL);
gst_caps_append (caps, newcaps);
} else {
caps = gst_caps_new_simple("video/x-raw",
"format", G_TYPE_STRING, gst_video_format_to_string(fmt), NULL);
}
}
caps = gst_caps_simplify(caps);
imx_video_overlay_composition_add_caps(caps);
return caps;
}
static void
gst_imxcompositor_class_init (GstImxCompositorClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstElementClass *gstelement_class = (GstElementClass *) klass;
GstVideoAggregatorClass *videoaggregator_class =
(GstVideoAggregatorClass *) klass;
GstAggregatorClass *agg_class = (GstAggregatorClass *) klass;
GstCaps *caps;
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = gst_imxcompositor_finalize;
gobject_class->get_property = gst_imxcompositor_get_property;
gobject_class->set_property = gst_imxcompositor_set_property;
Imx2DDeviceInfo *in_plugin = (Imx2DDeviceInfo *)g_type_get_qdata (
G_OBJECT_CLASS_TYPE (klass), GST_IMX_COMPOSITOR_PARAMS_QDATA);
g_assert (in_plugin != NULL);
Imx2DDevice* dev = in_plugin->create(in_plugin->device_type);
if (!dev)
return;
gchar longname[64] = {0};
snprintf(longname, 32, "IMX %s Video Compositor", in_plugin->name);
gst_element_class_set_static_metadata (gstelement_class, longname,
"Filter/Editor/Video/ImxCompositor", "Composite multiple video streams",
IMX_GST_PLUGIN_AUTHOR);
GList *list = dev->get_supported_in_fmts(dev);
caps = imx_compositor_caps_from_fmt_list(list);
g_list_free(list);
if (!caps) {
GST_ERROR ("Couldn't create caps for device '%s'", in_plugin->name);
caps = gst_caps_new_empty_simple ("video/x-raw");
}
gst_element_class_add_pad_template (gstelement_class,
gst_pad_template_new ("sink_%u", GST_PAD_SINK, GST_PAD_REQUEST, caps));
list = dev->get_supported_out_fmts(dev);
caps = imx_compositor_caps_from_fmt_list(list);
g_list_free(list);
if (!caps) {
GST_ERROR ("Couldn't create caps for device '%s'", in_plugin->name);
caps = gst_caps_new_empty_simple ("video/x-raw");
}
gst_element_class_add_pad_template (gstelement_class,
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps));
klass->in_plugin = in_plugin;
in_plugin->destroy(dev);
agg_class->sinkpads_type = GST_TYPE_IMXCOMPOSITOR_PAD;
agg_class->sink_query = gst_imxcompositor_sink_query;
agg_class->src_query = gst_imxcompositor_src_query;
videoaggregator_class->find_best_format = gst_imxcompositor_find_best_format;
videoaggregator_class->update_caps = gst_imxcompositor_update_caps;
videoaggregator_class->aggregate_frames = gst_imxcompositor_aggregate_frames;
videoaggregator_class->negotiated_caps = gst_imxcompositor_negotiated_caps;
videoaggregator_class->get_output_buffer=gst_imxcompositor_get_output_buffer;
g_object_class_install_property (gobject_class,
PROP_IMXCOMPOSITOR_BACKGROUND_ENABLE,
g_param_spec_boolean ("back-enable", "Background Enable",
"Enable Fill Background color", TRUE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_IMXCOMPOSITOR_BACKGROUND_COLOR,
g_param_spec_uint ("background", "Background",
"Background color (ARGB format)",
0, 0xFFFFFFFF, DEFAULT_IMXCOMPOSITOR_BACKGROUND,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_IMXCOMPOSITOR_COMPOSITION_META_ENABLE,
g_param_spec_boolean("composition-meta-enable", "Enable composition meta",
"Enable overlay composition meta processing",
IMX_COMPOSITOR_COMPOMETA_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
#if 0
g_object_class_install_property (gobject_class,
PROP_IMXCOMPOSITOR_OUTPUT_WIDTH,
g_param_spec_uint ("output-width", "Output width",
"Output frame width", 64, 4096, DEFAULT_IMXCOMPOSITOR_BACKGROUND,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_IMXCOMPOSITOR_OUTPUT_HEIGHT,
g_param_spec_uint ("output-height", "Output Height",
"Output frame height", 64, 4096, DEFAULT_IMXCOMPOSITOR_BACKGROUND,
G_PARAM_READWRITE));
#endif
}
static void
gst_imxcompositor_init (GstImxCompositor * imxcomp)
{
imxcomp->background = DEFAULT_IMXCOMPOSITOR_BACKGROUND;
imxcomp->background_enable = TRUE;
GstImxCompositorClass *klass =
(GstImxCompositorClass *) G_OBJECT_GET_CLASS (imxcomp);
if (klass->in_plugin)
imxcomp->device = klass->in_plugin->create(klass->in_plugin->device_type);
if (imxcomp->device) {
if (imxcomp->device->open(imxcomp->device) < 0) {
GST_ERROR ("Open 2D device failed.");
} else {
imxcomp->out_pool = NULL;
imxcomp->self_out_pool = NULL;
imxcomp->out_pool_update = TRUE;
imxcomp->allocator = NULL;
imxcomp->capabilities =imxcomp->device->get_capabilities(imxcomp->device);
memset (&imxcomp->out_align, 0, sizeof(GstVideoAlignment));
imxcomp->composition_meta_enable = IMX_COMPOSITOR_COMPOMETA_DEFAULT;
imx_video_overlay_composition_init(&imxcomp->video_comp, imxcomp->device);
}
} else {
GST_ERROR ("Create 2D device failed.");
}
}
static gboolean gst_imx_compositor_register (GstPlugin * plugin)
{
GTypeInfo tinfo = {
sizeof (GstImxCompositorClass),
NULL,
NULL,
(GClassInitFunc) gst_imxcompositor_class_init,
NULL,
NULL,
sizeof (GstImxCompositor),
0,
(GInstanceInitFunc) gst_imxcompositor_init,
};
GType type;
gchar *t_name;
const Imx2DDeviceInfo *in_plugin = imx_get_2d_devices();
while (in_plugin->name) {
GST_LOG ("Registering %s compositor", in_plugin->name);
if (!in_plugin->is_exist()) {
GST_WARNING("device %s not exist", in_plugin->name);
in_plugin++;
continue;
}
t_name = g_strdup_printf ("imxcompositor_%s", in_plugin->name);
type = g_type_from_name (t_name);
if (!type) {
type = g_type_register_static (GST_TYPE_VIDEO_AGGREGATOR,
t_name, &tinfo, 0);
g_type_set_qdata (type, GST_IMX_COMPOSITOR_PARAMS_QDATA,
(gpointer) in_plugin);
}
if (!gst_element_register (plugin, t_name, IMX_GST_PLUGIN_RANK, type)) {
GST_ERROR ("Failed to register %s", t_name);
g_free (t_name);
return FALSE;
}
g_free (t_name);
in_plugin++;
}
return TRUE;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gst_imxcompositor_debug, "imxcompositor", 0,
"Freescale IMX Video Compositor");
return gst_imx_compositor_register (plugin);
}
IMX_GST_PLUGIN_DEFINE(imxcompositor, "IMX Video Composition Plugins",
plugin_init);