gstreamer/sys/nvcodec/gstnvvp8dec.c
Seungha Yang 791f1da7b8 nvcodec: nvsldec: Refactor graphics api resource handling
* Move GL context object to GstNVDecoder object, and remove
  duplicated handling of each codec decoder element
* Don't create GL context too early. We can create it only if
  we need to negotiate with downstream gl element.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2089>
2021-03-29 15:10:54 +00:00

537 lines
16 KiB
C

/* GStreamer
* Copyright (C) 2020 Seungha Yang <seungha@centricular.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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstnvvp8dec.h"
#include "gstcudautils.h"
#include "gstnvdecoder.h"
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_nv_vp8_dec_debug);
#define GST_CAT_DEFAULT gst_nv_vp8_dec_debug
/* reference list 4 + 2 margin */
#define NUM_OUTPUT_VIEW 6
struct _GstNvVp8Dec
{
GstVp8Decoder parent;
GstVideoCodecState *output_state;
GstCudaContext *context;
GstNvDecoder *decoder;
CUVIDPICPARAMS params;
guint width, height;
};
struct _GstNvVp8DecClass
{
GstVp8DecoderClass parent_class;
guint cuda_device_id;
};
#define gst_nv_vp8_dec_parent_class parent_class
/**
* GstNvVp8Dec:
*
* Since: 1.20
*/
G_DEFINE_TYPE (GstNvVp8Dec, gst_nv_vp8_dec, GST_TYPE_VP8_DECODER);
static void gst_nv_vp8_dec_set_context (GstElement * element,
GstContext * context);
static gboolean gst_nv_vp8_dec_open (GstVideoDecoder * decoder);
static gboolean gst_nv_vp8_dec_close (GstVideoDecoder * decoder);
static gboolean gst_nv_vp8_dec_negotiate (GstVideoDecoder * decoder);
static gboolean gst_nv_vp8_dec_decide_allocation (GstVideoDecoder *
decoder, GstQuery * query);
static gboolean gst_nv_vp8_dec_src_query (GstVideoDecoder * decoder,
GstQuery * query);
/* GstVp8Decoder */
static gboolean gst_nv_vp8_dec_new_sequence (GstVp8Decoder * decoder,
const GstVp8FrameHdr * frame_hdr);
static gboolean gst_nv_vp8_dec_new_picture (GstVp8Decoder * decoder,
GstVideoCodecFrame * frame, GstVp8Picture * picture);
static gboolean gst_nv_vp8_dec_decode_picture (GstVp8Decoder * decoder,
GstVp8Picture * picture, GstVp8Parser * parser);
static GstFlowReturn gst_nv_vp8_dec_output_picture (GstVp8Decoder *
decoder, GstVideoCodecFrame * frame, GstVp8Picture * picture);
static void
gst_nv_vp8_dec_class_init (GstNvVp8DecClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoDecoderClass *decoder_class = GST_VIDEO_DECODER_CLASS (klass);
GstVp8DecoderClass *vp8decoder_class = GST_VP8_DECODER_CLASS (klass);
element_class->set_context = GST_DEBUG_FUNCPTR (gst_nv_vp8_dec_set_context);
decoder_class->open = GST_DEBUG_FUNCPTR (gst_nv_vp8_dec_open);
decoder_class->close = GST_DEBUG_FUNCPTR (gst_nv_vp8_dec_close);
decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_nv_vp8_dec_negotiate);
decoder_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_nv_vp8_dec_decide_allocation);
decoder_class->src_query = GST_DEBUG_FUNCPTR (gst_nv_vp8_dec_src_query);
vp8decoder_class->new_sequence =
GST_DEBUG_FUNCPTR (gst_nv_vp8_dec_new_sequence);
vp8decoder_class->new_picture =
GST_DEBUG_FUNCPTR (gst_nv_vp8_dec_new_picture);
vp8decoder_class->decode_picture =
GST_DEBUG_FUNCPTR (gst_nv_vp8_dec_decode_picture);
vp8decoder_class->output_picture =
GST_DEBUG_FUNCPTR (gst_nv_vp8_dec_output_picture);
GST_DEBUG_CATEGORY_INIT (gst_nv_vp8_dec_debug,
"nvvp8dec", 0, "NVIDIA VP8 Decoder");
gst_type_mark_as_plugin_api (GST_TYPE_NV_VP8_DEC, 0);
}
static void
gst_nv_vp8_dec_init (GstNvVp8Dec * self)
{
}
static void
gst_nv_vp8_dec_set_context (GstElement * element, GstContext * context)
{
GstNvVp8Dec *self = GST_NV_VP8_DEC (element);
GstNvVp8DecClass *klass = GST_NV_VP8_DEC_GET_CLASS (self);
GST_DEBUG_OBJECT (self, "set context %s",
gst_context_get_context_type (context));
if (gst_cuda_handle_set_context (element, context, klass->cuda_device_id,
&self->context)) {
goto done;
}
if (self->decoder)
gst_nv_decoder_handle_set_context (self->decoder, element, context);
done:
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static gboolean
gst_nv_vp8_dec_open (GstVideoDecoder * decoder)
{
GstNvVp8Dec *self = GST_NV_VP8_DEC (decoder);
GstNvVp8DecClass *klass = GST_NV_VP8_DEC_GET_CLASS (self);
if (!gst_cuda_ensure_element_context (GST_ELEMENT (self),
klass->cuda_device_id, &self->context)) {
GST_ERROR_OBJECT (self, "Required element data is unavailable");
return FALSE;
}
self->decoder = gst_nv_decoder_new (self->context);
if (!self->decoder) {
GST_ERROR_OBJECT (self, "Failed to create decoder object");
gst_clear_object (&self->context);
return FALSE;
}
return TRUE;
}
static gboolean
gst_nv_vp8_dec_close (GstVideoDecoder * decoder)
{
GstNvVp8Dec *self = GST_NV_VP8_DEC (decoder);
g_clear_pointer (&self->output_state, gst_video_codec_state_unref);
gst_clear_object (&self->decoder);
gst_clear_object (&self->context);
return TRUE;
}
static gboolean
gst_nv_vp8_dec_negotiate (GstVideoDecoder * decoder)
{
GstNvVp8Dec *self = GST_NV_VP8_DEC (decoder);
GstVp8Decoder *vp8dec = GST_VP8_DECODER (decoder);
GST_DEBUG_OBJECT (self, "negotiate");
gst_nv_decoder_negotiate (self->decoder, decoder, vp8dec->input_state,
&self->output_state);
/* TODO: add support D3D11 memory */
return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder);
}
static gboolean
gst_nv_vp8_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
GstNvVp8Dec *self = GST_NV_VP8_DEC (decoder);
if (!gst_nv_decoder_decide_allocation (self->decoder, decoder, query)) {
GST_WARNING_OBJECT (self, "Failed to handle decide allocation");
return FALSE;
}
return GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation
(decoder, query);
}
static gboolean
gst_nv_vp8_dec_src_query (GstVideoDecoder * decoder, GstQuery * query)
{
GstNvVp8Dec *self = GST_NV_VP8_DEC (decoder);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_cuda_handle_context_query (GST_ELEMENT (decoder), query,
self->context)) {
return TRUE;
} else if (self->decoder &&
gst_nv_decoder_handle_context_query (self->decoder, decoder, query)) {
return TRUE;
}
break;
default:
break;
}
return GST_VIDEO_DECODER_CLASS (parent_class)->src_query (decoder, query);
}
static gboolean
gst_nv_vp8_dec_new_sequence (GstVp8Decoder * decoder,
const GstVp8FrameHdr * frame_hdr)
{
GstNvVp8Dec *self = GST_NV_VP8_DEC (decoder);
gboolean modified = FALSE;
GST_LOG_OBJECT (self, "new sequence");
if (self->width != frame_hdr->width || self->height != frame_hdr->height) {
if (self->decoder) {
GST_INFO_OBJECT (self, "resolution changed %dx%d -> %dx%d",
self->width, self->height, frame_hdr->width, frame_hdr->height);
}
self->width = frame_hdr->width;
self->height = frame_hdr->height;
modified = TRUE;
}
if (modified || !gst_nv_decoder_is_configured (self->decoder)) {
GstVideoInfo info;
gst_video_info_set_format (&info,
GST_VIDEO_FORMAT_NV12, self->width, self->height);
if (!gst_nv_decoder_configure (self->decoder,
cudaVideoCodec_VP8, &info, self->width, self->height,
NUM_OUTPUT_VIEW)) {
GST_ERROR_OBJECT (self, "Failed to configure decoder");
return FALSE;
}
if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) {
GST_ERROR_OBJECT (self, "Failed to negotiate with downstream");
return FALSE;
}
memset (&self->params, 0, sizeof (CUVIDPICPARAMS));
self->params.PicWidthInMbs = GST_ROUND_UP_16 (self->width) >> 4;
self->params.FrameHeightInMbs = GST_ROUND_UP_16 (self->height) >> 4;
self->params.CodecSpecific.vp8.width = self->width;
self->params.CodecSpecific.vp8.height = self->height;
}
return TRUE;
}
static gboolean
gst_nv_vp8_dec_new_picture (GstVp8Decoder * decoder,
GstVideoCodecFrame * frame, GstVp8Picture * picture)
{
GstNvVp8Dec *self = GST_NV_VP8_DEC (decoder);
GstNvDecoderFrame *nv_frame;
nv_frame = gst_nv_decoder_new_frame (self->decoder);
if (!nv_frame) {
GST_ERROR_OBJECT (self, "No available decoder frame");
return FALSE;
}
GST_LOG_OBJECT (self,
"New decoder frame %p (index %d)", nv_frame, nv_frame->index);
gst_vp8_picture_set_user_data (picture,
nv_frame, (GDestroyNotify) gst_nv_decoder_frame_unref);
return TRUE;
}
static GstNvDecoderFrame *
gst_nv_vp8_dec_get_decoder_frame_from_picture (GstNvVp8Dec * self,
GstVp8Picture * picture)
{
GstNvDecoderFrame *frame;
frame = (GstNvDecoderFrame *) gst_vp8_picture_get_user_data (picture);
if (!frame)
GST_DEBUG_OBJECT (self, "current picture does not have decoder frame");
return frame;
}
static gboolean
gst_nv_vp8_dec_decode_picture (GstVp8Decoder * decoder,
GstVp8Picture * picture, GstVp8Parser * parser)
{
GstNvVp8Dec *self = GST_NV_VP8_DEC (decoder);
GstVp8FrameHdr *frame_hdr = &picture->frame_hdr;
GstNvDecoderFrame *frame;
GstNvDecoderFrame *other_frame;
guint offset = 0;
GST_LOG_OBJECT (self, "Decode picture, size %" G_GSIZE_FORMAT, picture->size);
frame = gst_nv_vp8_dec_get_decoder_frame_from_picture (self, picture);
if (!frame) {
GST_ERROR_OBJECT (self, "Decoder frame is unavailable");
return FALSE;
}
self->params.nBitstreamDataLen = picture->size;
self->params.pBitstreamData = picture->data;
self->params.nNumSlices = 1;
self->params.pSliceDataOffsets = &offset;
self->params.CurrPicIdx = frame->index;
self->params.CodecSpecific.vp8.first_partition_size =
frame_hdr->first_part_size;
if (decoder->alt_ref_picture) {
other_frame =
gst_nv_vp8_dec_get_decoder_frame_from_picture (self,
decoder->alt_ref_picture);
if (!other_frame) {
GST_ERROR_OBJECT (self, "Couldn't get decoder frame for AltRef");
return FALSE;
}
self->params.CodecSpecific.vp8.AltRefIdx = other_frame->index;
} else {
self->params.CodecSpecific.vp8.AltRefIdx = 0xff;
}
if (decoder->golden_ref_picture) {
other_frame =
gst_nv_vp8_dec_get_decoder_frame_from_picture (self,
decoder->golden_ref_picture);
if (!other_frame) {
GST_ERROR_OBJECT (self, "Couldn't get decoder frame for GoldenRef");
return FALSE;
}
self->params.CodecSpecific.vp8.GoldenRefIdx = other_frame->index;
} else {
self->params.CodecSpecific.vp8.GoldenRefIdx = 0xff;
}
if (decoder->last_picture) {
other_frame =
gst_nv_vp8_dec_get_decoder_frame_from_picture (self,
decoder->last_picture);
if (!other_frame) {
GST_ERROR_OBJECT (self, "Couldn't get decoder frame for LastRef");
return FALSE;
}
self->params.CodecSpecific.vp8.LastRefIdx = other_frame->index;
} else {
self->params.CodecSpecific.vp8.LastRefIdx = 0xff;
}
self->params.CodecSpecific.vp8.vp8_frame_tag.frame_type =
frame_hdr->key_frame ? 0 : 1;
self->params.CodecSpecific.vp8.vp8_frame_tag.version = frame_hdr->version;
self->params.CodecSpecific.vp8.vp8_frame_tag.show_frame =
frame_hdr->show_frame;
self->params.CodecSpecific.vp8.vp8_frame_tag.update_mb_segmentation_data =
parser->segmentation.segmentation_enabled ?
parser->segmentation.update_segment_feature_data : 0;
return gst_nv_decoder_decode_picture (self->decoder, &self->params);
}
static GstFlowReturn
gst_nv_vp8_dec_output_picture (GstVp8Decoder * decoder,
GstVideoCodecFrame * frame, GstVp8Picture * picture)
{
GstNvVp8Dec *self = GST_NV_VP8_DEC (decoder);
GstVideoDecoder *vdec = GST_VIDEO_DECODER (decoder);
GstNvDecoderFrame *decoder_frame;
GST_LOG_OBJECT (self, "Outputting picture %p", picture);
decoder_frame = (GstNvDecoderFrame *) gst_vp8_picture_get_user_data (picture);
if (!decoder_frame) {
GST_ERROR_OBJECT (self, "No decoder frame in picture %p", picture);
goto error;
}
if (!gst_nv_decoder_finish_frame (self->decoder, vdec, decoder_frame,
&frame->output_buffer)) {
GST_ERROR_OBJECT (self, "Failed to handle output picture");
goto error;
}
gst_vp8_picture_unref (picture);
return gst_video_decoder_finish_frame (vdec, frame);
error:
gst_video_decoder_drop_frame (vdec, frame);
gst_vp8_picture_unref (picture);
return GST_FLOW_ERROR;
}
typedef struct
{
GstCaps *sink_caps;
GstCaps *src_caps;
guint cuda_device_id;
gboolean is_default;
} GstNvVp8DecClassData;
static void
gst_nv_vp8_dec_subclass_init (gpointer klass, GstNvVp8DecClassData * cdata)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstNvVp8DecClass *nvdec_class = (GstNvVp8DecClass *) (klass);
gchar *long_name;
if (cdata->is_default) {
long_name = g_strdup_printf ("NVDEC VP8 Stateless Decoder");
} else {
long_name = g_strdup_printf ("NVDEC VP8 Stateless Decoder with device %d",
cdata->cuda_device_id);
}
gst_element_class_set_metadata (element_class, long_name,
"Codec/Decoder/Video/Hardware",
"NVIDIA VP8 video decoder", "Seungha Yang <seungha@centricular.com>");
g_free (long_name);
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
cdata->sink_caps));
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
cdata->src_caps));
nvdec_class->cuda_device_id = cdata->cuda_device_id;
gst_caps_unref (cdata->sink_caps);
gst_caps_unref (cdata->src_caps);
g_free (cdata);
}
void
gst_nv_vp8_dec_register (GstPlugin * plugin, guint device_id, guint rank,
GstCaps * sink_caps, GstCaps * src_caps, gboolean is_primary)
{
GTypeQuery type_query;
GTypeInfo type_info = { 0, };
GType subtype;
gchar *type_name;
gchar *feature_name;
GstNvVp8DecClassData *cdata;
gboolean is_default = TRUE;
/**
* element-nvvp8sldec:
*
* Since: 1.20
*/
cdata = g_new0 (GstNvVp8DecClassData, 1);
cdata->sink_caps = gst_caps_ref (sink_caps);
cdata->src_caps = gst_caps_ref (src_caps);
cdata->cuda_device_id = device_id;
g_type_query (GST_TYPE_NV_VP8_DEC, &type_query);
memset (&type_info, 0, sizeof (type_info));
type_info.class_size = type_query.class_size;
type_info.instance_size = type_query.instance_size;
type_info.class_init = (GClassInitFunc) gst_nv_vp8_dec_subclass_init;
type_info.class_data = cdata;
if (is_primary) {
type_name = g_strdup ("GstNvVP8StatelessPrimaryDec");
feature_name = g_strdup ("nvvp8dec");
} else {
type_name = g_strdup ("GstNvVP8StatelessDec");
feature_name = g_strdup ("nvvp8sldec");
}
if (g_type_from_name (type_name) != 0) {
g_free (type_name);
g_free (feature_name);
if (is_primary) {
type_name =
g_strdup_printf ("GstNvVP8StatelessPrimaryDevice%dDec", device_id);
feature_name = g_strdup_printf ("nvvp8device%ddec", device_id);
} else {
type_name = g_strdup_printf ("GstNvVP8StatelessDevice%dDec", device_id);
feature_name = g_strdup_printf ("nvvp8sldevice%ddec", device_id);
}
is_default = FALSE;
}
cdata->is_default = is_default;
subtype = g_type_register_static (GST_TYPE_NV_VP8_DEC,
type_name, &type_info, 0);
/* make lower rank than default device */
if (rank > 0 && !is_default)
rank--;
if (!gst_element_register (plugin, feature_name, rank, subtype))
GST_WARNING ("Failed to register plugin '%s'", type_name);
g_free (type_name);
g_free (feature_name);
}