gstreamer/subprojects/gst-plugins-bad/sys/qsv/gstqsvdecoder.cpp

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/* GStreamer
* Copyright (C) 2022 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 "gstqsvdecoder.h"
#include <mfxvideo++.h>
#include <string.h>
#ifdef G_OS_WIN32
#include "gstqsvallocator_d3d11.h"
#include <wrl.h>
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
/* *INDENT-ON* */
#else
#include "gstqsvallocator_va.h"
#endif /* G_OS_WIN32 */
GST_DEBUG_CATEGORY_STATIC (gst_qsv_decoder_debug);
#define GST_CAT_DEFAULT gst_qsv_decoder_debug
#define GST_QSV_DECODER_FLOW_NEW_SEQUENCE GST_FLOW_CUSTOM_SUCCESS_1
enum
{
PROP_0,
PROP_ADAPTER_LUID,
PROP_DEVICE_PATH,
};
typedef struct _GstQsvDecoderSurface
{
mfxFrameSurface1 surface;
/* mfxFrameSurface1:Data:MemId */
GstQsvFrame *frame;
gboolean need_output;
} GstQsvDecoderSurface;
typedef struct _GstQsvDecoderTask
{
mfxSyncPoint sync_point;
/* without ownership */
GstQsvDecoderSurface *surface;
} GstQsvDecoderTask;
struct _GstQsvDecoderPrivate
{
GstObject *device;
GstVideoCodecState *input_state;
GstVideoCodecState *output_state;
GstQsvAllocator *allocator;
GstBufferPool *internal_pool;
GstVideoInfo info;
GstVideoInfo aligned_info;
mfxSession session;
mfxVideoParam video_param;
/* holding allocated GstQsvFrame, should be cleared via
* mfxFrameAllocator::Free() */
mfxFrameAllocResponse response;
MFXVideoDECODE *decoder;
GstQsvMemoryType mem_type;
gboolean use_video_memory;
gboolean have_video_meta;
gboolean is_live;
/* Array of GstQsvDecoderSurface */
GArray *surface_pool;
/* Array of GstQsvDecoderTask */
GArray *task_pool;
guint next_task_index;
};
/**
* GstQsvDecoder:
*
* Base class for Intel Quick Sync video decoders
*
* Since: 1.22
*/
#define gst_qsv_decoder_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstQsvDecoder, gst_qsv_decoder,
GST_TYPE_VIDEO_DECODER, G_ADD_PRIVATE (GstQsvDecoder);
GST_DEBUG_CATEGORY_INIT (gst_qsv_decoder_debug,
"qsvdecoder", 0, "qsvdecoder"));
static void gst_qsv_decoder_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_qsv_decoder_dispose (GObject * object);
static void gst_qsv_decoder_finalize (GObject * object);
static void gst_qsv_decoder_set_context (GstElement * element,
GstContext * context);
static gboolean gst_qsv_decoder_open (GstVideoDecoder * decoder);
static gboolean gst_qsv_decoder_stop (GstVideoDecoder * decoder);
static gboolean gst_qsv_decoder_close (GstVideoDecoder * decoder);
static gboolean gst_qsv_decoder_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state);
static gboolean gst_qsv_decoder_negotiate (GstVideoDecoder * decoder);
static gboolean gst_qsv_decoder_decide_allocation (GstVideoDecoder * decoder,
GstQuery * query);
static gboolean gst_qsv_decoder_sink_query (GstVideoDecoder * decoder,
GstQuery * query);
static gboolean gst_qsv_decoder_src_query (GstVideoDecoder * decoder,
GstQuery * query);
static GstFlowReturn gst_qsv_decoder_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame);
static gboolean gst_qsv_decoder_flush (GstVideoDecoder * decoder);
static GstFlowReturn gst_qsv_decoder_finish (GstVideoDecoder * decoder);
static GstFlowReturn gst_qsv_decoder_drain (GstVideoDecoder * decoder);
static void gst_qsv_decoder_surface_clear (GstQsvDecoderSurface * surface);
static void gst_qsv_decoder_task_clear (GstQsvDecoderTask * task);
static gboolean gst_qsv_decoder_negotiate_internal (GstVideoDecoder * decoder,
const mfxFrameInfo * frame_info);
static void
gst_qsv_decoder_class_init (GstQsvDecoderClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoDecoderClass *videodec_class = GST_VIDEO_DECODER_CLASS (klass);
GParamFlags param_flags = (GParamFlags) (GST_PARAM_DOC_SHOW_DEFAULT |
GST_PARAM_CONDITIONALLY_AVAILABLE | G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
object_class->get_property = gst_qsv_decoder_get_property;
object_class->dispose = gst_qsv_decoder_dispose;
object_class->finalize = gst_qsv_decoder_finalize;
#ifdef G_OS_WIN32
g_object_class_install_property (object_class, PROP_ADAPTER_LUID,
g_param_spec_int64 ("adapter-luid", "Adapter LUID",
"DXGI Adapter LUID (Locally Unique Identifier) of created device",
G_MININT64, G_MAXINT64, 0, param_flags));
#else
g_object_class_install_property (object_class, PROP_DEVICE_PATH,
g_param_spec_string ("device-path", "Device Path",
"DRM device path", nullptr, param_flags));
#endif
element_class->set_context = GST_DEBUG_FUNCPTR (gst_qsv_decoder_set_context);
videodec_class->open = GST_DEBUG_FUNCPTR (gst_qsv_decoder_open);
videodec_class->stop = GST_DEBUG_FUNCPTR (gst_qsv_decoder_stop);
videodec_class->close = GST_DEBUG_FUNCPTR (gst_qsv_decoder_close);
videodec_class->negotiate = GST_DEBUG_FUNCPTR (gst_qsv_decoder_negotiate);
videodec_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_qsv_decoder_decide_allocation);
videodec_class->sink_query = GST_DEBUG_FUNCPTR (gst_qsv_decoder_sink_query);
videodec_class->src_query = GST_DEBUG_FUNCPTR (gst_qsv_decoder_src_query);
videodec_class->set_format = GST_DEBUG_FUNCPTR (gst_qsv_decoder_set_format);
videodec_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_qsv_decoder_handle_frame);
videodec_class->drain = GST_DEBUG_FUNCPTR (gst_qsv_decoder_drain);
videodec_class->finish = GST_DEBUG_FUNCPTR (gst_qsv_decoder_finish);
videodec_class->flush = GST_DEBUG_FUNCPTR (gst_qsv_decoder_flush);
gst_type_mark_as_plugin_api (GST_TYPE_QSV_DECODER, (GstPluginAPIFlags) 0);
}
static void
gst_qsv_decoder_init (GstQsvDecoder * self)
{
GstQsvDecoderPrivate *priv;
priv = self->priv =
(GstQsvDecoderPrivate *) gst_qsv_decoder_get_instance_private (self);
priv->surface_pool = g_array_new (FALSE, TRUE, sizeof (GstQsvDecoderSurface));
g_array_set_clear_func (priv->surface_pool,
(GDestroyNotify) gst_qsv_decoder_surface_clear);
priv->task_pool = g_array_new (FALSE, TRUE, sizeof (GstQsvDecoderTask));
g_array_set_clear_func (priv->task_pool,
(GDestroyNotify) gst_qsv_decoder_task_clear);
gst_video_decoder_set_packetized (GST_VIDEO_DECODER (self), TRUE);
}
static void
gst_qsv_decoder_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstQsvDecoderClass *klass = GST_QSV_DECODER_GET_CLASS (object);
switch (prop_id) {
case PROP_ADAPTER_LUID:
g_value_set_int64 (value, klass->adapter_luid);
break;
case PROP_DEVICE_PATH:
g_value_set_string (value, klass->display_path);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_qsv_decoder_dispose (GObject * object)
{
GstQsvDecoder *self = GST_QSV_DECODER (object);
GstQsvDecoderPrivate *priv = self->priv;
gst_clear_object (&priv->device);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_qsv_decoder_finalize (GObject * object)
{
GstQsvDecoder *self = GST_QSV_DECODER (object);
GstQsvDecoderPrivate *priv = self->priv;
g_array_unref (priv->task_pool);
g_array_unref (priv->surface_pool);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_qsv_decoder_set_context (GstElement * element, GstContext * context)
{
GstQsvDecoder *self = GST_QSV_DECODER (element);
GstQsvDecoderClass *klass = GST_QSV_DECODER_GET_CLASS (element);
GstQsvDecoderPrivate *priv = self->priv;
#ifdef G_OS_WIN32
gst_d3d11_handle_set_context_for_adapter_luid (element,
context, klass->adapter_luid, (GstD3D11Device **) & priv->device);
#else
gst_va_handle_set_context (element, context, klass->display_path,
(GstVaDisplay **) & priv->device);
#endif
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
#ifdef G_OS_WIN32
static gboolean
gst_qsv_decoder_open_platform_device (GstQsvDecoder * self)
{
GstQsvDecoderPrivate *priv = self->priv;
GstQsvDecoderClass *klass = GST_QSV_DECODER_GET_CLASS (self);
ComPtr < ID3D10Multithread > multi_thread;
HRESULT hr;
ID3D11Device *device_handle;
mfxStatus status;
GstD3D11Device *device;
if (!gst_d3d11_ensure_element_data_for_adapter_luid (GST_ELEMENT (self),
klass->adapter_luid, (GstD3D11Device **) & priv->device)) {
GST_ERROR_OBJECT (self, "d3d11 device is unavailable");
return FALSE;
}
device = GST_D3D11_DEVICE_CAST (priv->device);
priv->allocator = gst_qsv_d3d11_allocator_new (device);
/* For D3D11 device handle to be used by QSV, multithread protection layer
* must be enabled before the MFXVideoCORE_SetHandle() call.
*
* TODO: Need to check performance impact by this mutithread protection layer,
* since it may have a negative impact on overall pipeline performance.
* If so, we should create decoding session dedicated d3d11 device and
* make use of shared resource */
device_handle = gst_d3d11_device_get_device_handle (device);
hr = device_handle->QueryInterface (IID_PPV_ARGS (&multi_thread));
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "ID3D10Multithread interface is unavailable");
return FALSE;
}
multi_thread->SetMultithreadProtected (TRUE);
status = MFXVideoCORE_SetHandle (priv->session, MFX_HANDLE_D3D11_DEVICE,
device_handle);
if (status != MFX_ERR_NONE) {
GST_ERROR_OBJECT (self, "Failed to set d3d11 device handle");
return FALSE;
}
/* Similar to the QSV encoder, we don't use this allocator for actual
* D3D11 texture allocation. But still required because of QSV API design.
*/
status = MFXVideoCORE_SetFrameAllocator (priv->session,
gst_qsv_allocator_get_allocator_handle (priv->allocator));
if (status != MFX_ERR_NONE) {
GST_ERROR_OBJECT (self, "Failed to set frame allocator %d", status);
return FALSE;
}
return TRUE;
}
#else
static gboolean
gst_qsv_decoder_open_platform_device (GstQsvDecoder * self)
{
GstQsvDecoderPrivate *priv = self->priv;
GstQsvDecoderClass *klass = GST_QSV_DECODER_GET_CLASS (self);
mfxStatus status;
GstVaDisplay *display;
if (!gst_va_ensure_element_data (GST_ELEMENT (self), klass->display_path,
(GstVaDisplay **) & priv->device)) {
GST_ERROR_OBJECT (self, "VA display is unavailable");
return FALSE;
}
display = GST_VA_DISPLAY (priv->device);
priv->allocator = gst_qsv_va_allocator_new (display);
status = MFXVideoCORE_SetHandle (priv->session, MFX_HANDLE_VA_DISPLAY,
gst_va_display_get_va_dpy (display));
if (status != MFX_ERR_NONE) {
GST_ERROR_OBJECT (self, "Failed to set VA display handle");
return FALSE;
}
status = MFXVideoCORE_SetFrameAllocator (priv->session,
gst_qsv_allocator_get_allocator_handle (priv->allocator));
if (status != MFX_ERR_NONE) {
GST_ERROR_OBJECT (self, "Failed to set frame allocator %d", status);
return FALSE;
}
return TRUE;
}
#endif
static gboolean
gst_qsv_decoder_open (GstVideoDecoder * decoder)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
GstQsvDecoderPrivate *priv = self->priv;
GstQsvDecoderClass *klass = GST_QSV_DECODER_GET_CLASS (self);
mfxStatus status;
status = MFXCreateSession (gst_qsv_get_loader (), klass->impl_index,
&priv->session);
if (status != MFX_ERR_NONE) {
GST_ERROR_OBJECT (self, "Failed to create session");
return FALSE;
}
if (!gst_qsv_decoder_open_platform_device (self)) {
g_clear_pointer (&priv->session, MFXClose);
gst_clear_object (&priv->allocator);
gst_clear_object (&priv->device);
return FALSE;
}
return TRUE;
}
static gboolean
gst_qsv_decoder_reset (GstQsvDecoder * self)
{
GstQsvDecoderPrivate *priv = self->priv;
GST_DEBUG_OBJECT (self, "Reset");
if (priv->decoder) {
delete priv->decoder;
priv->decoder = nullptr;
}
if (priv->internal_pool) {
gst_buffer_pool_set_active (priv->internal_pool, FALSE);
gst_clear_object (&priv->internal_pool);
}
if (priv->allocator) {
mfxFrameAllocator *alloc =
gst_qsv_allocator_get_allocator_handle (priv->allocator);
alloc->Free ((mfxHDL) priv->allocator, &priv->response);
}
memset (&priv->response, 0, sizeof (mfxFrameAllocResponse));
g_array_set_size (priv->surface_pool, 0);
g_array_set_size (priv->task_pool, 0);
return TRUE;
}
static gboolean
gst_qsv_decoder_stop (GstVideoDecoder * decoder)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
GstQsvDecoderPrivate *priv = self->priv;
g_clear_pointer (&priv->input_state, gst_video_codec_state_unref);
g_clear_pointer (&priv->output_state, gst_video_codec_state_unref);
return gst_qsv_decoder_reset (self);
}
static gboolean
gst_qsv_decoder_close (GstVideoDecoder * decoder)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
GstQsvDecoderPrivate *priv = self->priv;
g_clear_pointer (&priv->session, MFXClose);
gst_clear_object (&priv->allocator);
gst_clear_object (&priv->device);
return TRUE;
}
static void
gst_qsv_decoder_surface_clear (GstQsvDecoderSurface * surface)
{
if (!surface)
return;
memset (surface, 0, sizeof (GstQsvDecoderSurface));
}
static void
gst_qsv_decoder_task_clear (GstQsvDecoderTask * task)
{
if (!task)
return;
if (task->surface) {
task->surface->need_output = FALSE;
if (task->surface->frame && task->surface->surface.Data.Locked == 0)
gst_qsv_frame_set_buffer (task->surface->frame, nullptr);
}
task->surface = nullptr;
task->sync_point = nullptr;
}
static GstQsvDecoderSurface *
gst_qsv_decoder_get_next_surface (GstQsvDecoder * self)
{
GstQsvDecoderPrivate *priv = self->priv;
GstQsvDecoderSurface *surface = nullptr;
GstBuffer *buffer;
GstFlowReturn ret;
/* Clear unlocked frames as well */
for (guint i = 0; i < priv->surface_pool->len; i++) {
GstQsvDecoderSurface *iter =
&g_array_index (priv->surface_pool, GstQsvDecoderSurface, i);
if (iter->surface.Data.Locked > 0 || iter->need_output)
continue;
gst_qsv_frame_set_buffer (iter->frame, nullptr);
if (!surface)
surface = iter;
}
if (!surface) {
GST_ERROR_OBJECT (self, "Failed to find unlocked surface");
return nullptr;
}
ret = gst_buffer_pool_acquire_buffer (priv->internal_pool, &buffer, nullptr);
if (ret != GST_FLOW_OK) {
GST_ERROR_OBJECT (self, "Failed to allocate buffer");
return nullptr;
}
gst_qsv_frame_set_buffer (surface->frame, buffer);
return surface;
}
static GstQsvDecoderTask *
gst_qsv_decoder_get_next_task (GstQsvDecoder * self)
{
GstQsvDecoderPrivate *priv = self->priv;
GstQsvDecoderTask *task;
task = &g_array_index (priv->task_pool,
GstQsvDecoderTask, priv->next_task_index);
priv->next_task_index++;
priv->next_task_index %= priv->task_pool->len;
return task;
}
static GstVideoCodecFrame *
gst_qsv_decoder_find_output_frame (GstQsvDecoder * self, GstClockTime pts)
{
GList *frames, *iter;
GstVideoCodecFrame *ret = nullptr;
GstVideoCodecFrame *closest = nullptr;
guint64 min_pts_abs_diff = 0;
/* give up, just returns the oldest frame */
if (!GST_CLOCK_TIME_IS_VALID (pts))
return gst_video_decoder_get_oldest_frame (GST_VIDEO_DECODER (self));
frames = gst_video_decoder_get_frames (GST_VIDEO_DECODER (self));
for (iter = frames; iter; iter = g_list_next (iter)) {
GstVideoCodecFrame *frame = (GstVideoCodecFrame *) iter->data;
guint64 abs_diff;
if (!GST_CLOCK_TIME_IS_VALID (frame->pts))
continue;
if (pts == frame->pts) {
ret = frame;
break;
}
if (pts >= frame->pts)
abs_diff = pts - frame->pts;
else
abs_diff = frame->pts - pts;
if (!closest || abs_diff < min_pts_abs_diff) {
closest = frame;
min_pts_abs_diff = abs_diff;
}
}
if (!ret && closest)
ret = closest;
if (ret) {
gst_video_codec_frame_ref (ret);
/* Release older frames, it can happen if input buffer holds only single
* field in case of H264 */
for (iter = frames; iter; iter = g_list_next (iter)) {
GstVideoCodecFrame *frame = (GstVideoCodecFrame *) iter->data;
if (frame == ret)
continue;
if (!GST_CLOCK_TIME_IS_VALID (frame->pts))
continue;
if (frame->pts < ret->pts) {
gst_video_decoder_release_frame (GST_VIDEO_DECODER (self),
gst_video_codec_frame_ref (frame));
}
}
} else {
ret = gst_video_decoder_get_oldest_frame (GST_VIDEO_DECODER (self));
}
if (frames)
g_list_free_full (frames, (GDestroyNotify) gst_video_codec_frame_unref);
return ret;
}
static GstFlowReturn
gst_qsv_decoder_finish_frame (GstQsvDecoder * self, GstQsvDecoderTask * task,
gboolean flushing)
{
GstVideoDecoder *vdec = GST_VIDEO_DECODER (self);
GstQsvDecoderPrivate *priv = self->priv;
GstQsvDecoderClass *klass = GST_QSV_DECODER_GET_CLASS (self);
mfxStatus status;
GstVideoCodecFrame *frame;
GstClockTime pts = GST_CLOCK_TIME_NONE;
GstBuffer *buffer;
guint retry_count = 0;
/* magic number */
const guint retry_threshold = 100;
GstQsvDecoderSurface *surface = task->surface;
GstBufferPool *pool;
gboolean force_copy = FALSE;
g_assert (surface != nullptr);
g_assert (task->sync_point != nullptr);
status = MFX_ERR_NONE;
do {
/* magic number 100 ms */
status = MFXVideoCORE_SyncOperation (priv->session, task->sync_point, 100);
/* Retry up to 10 sec (100 ms x 100 times), that should be enough time for
* decoding a frame using hardware */
if (status == MFX_WRN_IN_EXECUTION && retry_count < retry_threshold) {
GST_DEBUG_OBJECT (self,
"Operation is still in execution, retry count (%d/%d)",
retry_count, retry_threshold);
retry_count++;
continue;
}
break;
} while (TRUE);
if (flushing) {
gst_qsv_decoder_task_clear (task);
return GST_FLOW_OK;
}
if (status != MFX_ERR_NONE) {
gst_qsv_decoder_task_clear (task);
if (status == MFX_ERR_ABORTED) {
GST_INFO_OBJECT (self, "Operation was aborted");
return GST_FLOW_FLUSHING;
}
GST_WARNING_OBJECT (self, "SyncOperation returned %d (%s)",
QSV_STATUS_ARGS (status));
return GST_FLOW_ERROR;
}
/* Handle non-keyframe resolution change */
if (klass->codec_id == MFX_CODEC_VP9) {
guint width, height;
if (surface->surface.Info.CropW > 0 && surface->surface.Info.CropH > 0) {
width = surface->surface.Info.CropW;
height = surface->surface.Info.CropH;
} else {
width = surface->surface.Info.Width;
height = surface->surface.Info.Height;
}
if (width != (guint) priv->output_state->info.width ||
height != (guint) priv->output_state->info.height) {
GST_DEBUG_OBJECT (self,
"VP9 resolution change %dx%d -> %dx%d, negotiate again",
priv->output_state->info.width, priv->output_state->info.height,
width, height);
if (!gst_qsv_decoder_negotiate_internal (vdec, &surface->surface.Info)) {
GST_ERROR_OBJECT (self, "Could not negotiate with downstream");
return GST_FLOW_NOT_NEGOTIATED;
}
}
/* TODO: Use crop meta if supported by downstream.
* Most d3d11 elements supports crop meta */
if (width != (guint) priv->info.width
|| height != (guint) priv->info.height)
force_copy = TRUE;
}
pts = gst_qsv_timestamp_to_gst (surface->surface.Data.TimeStamp);
pool = gst_video_decoder_get_buffer_pool (vdec);
if (!pool) {
GST_ERROR_OBJECT (self, "Decoder doesn't hold buffer pool");
gst_qsv_decoder_task_clear (task);
return GST_FLOW_ERROR;
}
if (priv->use_video_memory) {
/* Copy decoded frame in case of reverse playback, too many bound frame to
* decoder may cause driver unhappy */
if (vdec->input_segment.rate < 0.0)
force_copy = TRUE;
} else if (!priv->have_video_meta) {
/* downstream does not support video meta, need copy */
force_copy = TRUE;
}
/* TODO: Handle non-zero crop-{x,y} position via crop meta or similar */
buffer = gst_qsv_allocator_download_frame (priv->allocator, force_copy,
surface->frame, &priv->output_state->info, pool);
gst_object_unref (pool);
gst_qsv_decoder_task_clear (task);
if (!buffer) {
GST_ERROR_OBJECT (self, "No output buffer");
return GST_FLOW_ERROR;
}
if (priv->aligned_info.interlace_mode == GST_VIDEO_INTERLACE_MODE_MIXED) {
if ((surface->surface.Info.PicStruct & MFX_PICSTRUCT_FIELD_TFF) != 0) {
GST_BUFFER_FLAG_SET (buffer,
GST_VIDEO_BUFFER_FLAG_TFF | GST_VIDEO_BUFFER_FLAG_INTERLACED);
} else if ((surface->surface.Info.PicStruct & MFX_PICSTRUCT_FIELD_BFF) != 0) {
GST_BUFFER_FLAG_SET (buffer, GST_VIDEO_BUFFER_FLAG_INTERLACED);
GST_BUFFER_FLAG_UNSET (buffer, GST_VIDEO_BUFFER_FLAG_TFF);
}
}
frame = gst_qsv_decoder_find_output_frame (self, pts);
if (frame) {
frame->pts = pts;
frame->output_buffer = buffer;
return gst_video_decoder_finish_frame (vdec, frame);
}
/* Empty available frame, something went wrong but we can just push this
* buffer */
GST_WARNING_OBJECT (self, "Failed to find corresponding frame");
GST_BUFFER_PTS (buffer) = pts;
return gst_pad_push (GST_VIDEO_DECODER_SRC_PAD (self), buffer);
}
static GstFlowReturn
gst_qsv_decoder_decode_frame (GstQsvDecoder * self, mfxBitstream * bitstream,
gboolean flushing)
{
GstQsvDecoderPrivate *priv = self->priv;
mfxStatus status;
guint retry_count = 0;
/* magic number */
const guint retry_threshold = 1000;
GstQsvDecoderSurface *surface = nullptr;
GstFlowReturn ret;
do {
mfxFrameSurface1 *out_surface = nullptr;
GstQsvDecoderTask *task = gst_qsv_decoder_get_next_task (self);
if (task->sync_point) {
ret = gst_qsv_decoder_finish_frame (self, task, flushing);
if (ret != GST_FLOW_OK)
return ret;
}
if (!surface)
surface = gst_qsv_decoder_get_next_surface (self);
if (!surface) {
GST_ERROR_OBJECT (self, "No available surface");
return GST_FLOW_ERROR;
}
status = priv->decoder->DecodeFrameAsync (bitstream, &surface->surface,
&out_surface, &task->sync_point);
if (status != MFX_ERR_NONE) {
GST_LOG_OBJECT (self, "DecodeFrameAsync returned %d (%s)",
QSV_STATUS_ARGS (status));
}
if (out_surface) {
g_assert (task->sync_point != nullptr);
for (guint i = 0; i < priv->surface_pool->len; i++) {
GstQsvDecoderSurface *iter =
&g_array_index (priv->surface_pool, GstQsvDecoderSurface, i);
if (iter->surface.Data.MemId == out_surface->Data.MemId) {
task->surface = iter;
break;
}
}
if (!task->surface) {
GST_ERROR_OBJECT (self, "Failed to find surface");
gst_qsv_decoder_task_clear (task);
return GST_FLOW_ERROR;
}
/* Make need-output to hold underlying GstBuffer until output happens */
task->surface->need_output = TRUE;
}
switch (status) {
case MFX_ERR_NONE:
case MFX_WRN_VIDEO_PARAM_CHANGED:
if (surface->surface.Data.Locked > 0)
surface = nullptr;
if (bitstream && bitstream->DataLength == 0)
return GST_FLOW_OK;
break;
case MFX_ERR_MORE_SURFACE:
return GST_FLOW_OK;
case MFX_ERR_INCOMPATIBLE_VIDEO_PARAM:
GST_DEBUG_OBJECT (self, "Found new sequence");
return GST_QSV_DECODER_FLOW_NEW_SEQUENCE;
case MFX_ERR_MORE_DATA:
return GST_VIDEO_DECODER_FLOW_NEED_DATA;
case MFX_WRN_DEVICE_BUSY:
GST_LOG_OBJECT (self, "GPU is busy, retry count (%d/%d)",
retry_count, retry_threshold);
if (retry_count > retry_threshold) {
GST_ERROR_OBJECT (self, "Give up");
return GST_FLOW_ERROR;
}
retry_count++;
/* Magic number 1ms */
g_usleep (1000);
break;
default:
if (status < MFX_ERR_NONE) {
GST_ERROR_OBJECT (self, "Got error %d (%s)",
QSV_STATUS_ARGS (status));
return GST_FLOW_ERROR;
}
break;
}
} while (TRUE);
return GST_FLOW_ERROR;
}
static GstFlowReturn
gst_qsv_decoder_drain_internal (GstQsvDecoder * self, gboolean flushing)
{
GstQsvDecoderPrivate *priv = self->priv;
GstFlowReturn ret = GST_FLOW_OK;
if (!priv->session || !priv->decoder)
return GST_FLOW_OK;
do {
ret = gst_qsv_decoder_decode_frame (self, nullptr, flushing);
} while (ret != GST_VIDEO_DECODER_FLOW_NEED_DATA && ret >= GST_FLOW_OK);
for (guint i = 0; i < priv->task_pool->len; i++) {
GstQsvDecoderTask *task = gst_qsv_decoder_get_next_task (self);
if (!task->sync_point)
continue;
ret = gst_qsv_decoder_finish_frame (self, task, flushing);
}
switch (ret) {
case GST_VIDEO_DECODER_FLOW_NEED_DATA:
case GST_QSV_DECODER_FLOW_NEW_SEQUENCE:
return GST_FLOW_OK;
default:
break;
}
return ret;
}
static gboolean
gst_qsv_decoder_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
GstQsvDecoderPrivate *priv = self->priv;
GstQsvDecoderClass *klass = GST_QSV_DECODER_GET_CLASS (self);
GstQuery *query;
GST_DEBUG_OBJECT (self, "Set format with %" GST_PTR_FORMAT, state->caps);
gst_qsv_decoder_drain_internal (self, FALSE);
g_clear_pointer (&priv->input_state, gst_video_codec_state_unref);
priv->input_state = gst_video_codec_state_ref (state);
memset (&priv->video_param, 0, sizeof (mfxVideoParam));
priv->video_param.mfx.CodecId = klass->codec_id;
/* If upstream is live, we will use single async-depth for low-latency
* decoding */
query = gst_query_new_latency ();
if (gst_pad_peer_query (GST_VIDEO_DECODER_SINK_PAD (self), query))
gst_query_parse_latency (query, &priv->is_live, nullptr, nullptr);
gst_query_unref (query);
/* We will open decoder later once sequence header is parsed */
if (klass->set_format)
return klass->set_format (self, state);
return TRUE;
}
#ifdef G_OS_WIN32
static gboolean
gst_qsv_decoder_prepare_d3d11_pool (GstQsvDecoder * self,
GstCaps * caps, GstVideoInfo * info, GstVideoAlignment * align)
{
GstQsvDecoderPrivate *priv = self->priv;
GstStructure *config;
GstD3D11AllocationParams *params;
GstD3D11Device *device = GST_D3D11_DEVICE_CAST (priv->device);
guint bind_flags = 0;
GstD3D11Format d3d11_format;
GST_DEBUG_OBJECT (self, "Use d3d11 memory pool");
priv->internal_pool = gst_d3d11_buffer_pool_new (device);
config = gst_buffer_pool_get_config (priv->internal_pool);
gst_d3d11_device_get_format (device, GST_VIDEO_INFO_FORMAT (info),
&d3d11_format);
/* May not support DOV, specifically RGB output case */
if ((d3d11_format.format_support[0] &
(guint) D3D11_FORMAT_SUPPORT_DECODER_OUTPUT) != 0) {
bind_flags |= D3D11_BIND_DECODER;
} else if ((d3d11_format.format_support[0] &
(guint) D3D11_FORMAT_SUPPORT_RENDER_TARGET) != 0) {
bind_flags |= D3D11_BIND_RENDER_TARGET;
}
/* Bind to shader resource as well for this texture can be used
* in generic pixel shader */
if ((d3d11_format.format_support[0] & (guint)
D3D11_FORMAT_SUPPORT_SHADER_SAMPLE) != 0)
bind_flags |= D3D11_BIND_SHADER_RESOURCE;
params = gst_d3d11_allocation_params_new (device, info,
GST_D3D11_ALLOCATION_FLAG_DEFAULT, bind_flags, 0);
gst_d3d11_allocation_params_alignment (params, align);
gst_buffer_pool_config_set_d3d11_allocation_params (config, params);
gst_d3d11_allocation_params_free (params);
gst_buffer_pool_config_set_params (config, caps,
GST_VIDEO_INFO_SIZE (info), 0, 0);
gst_buffer_pool_set_config (priv->internal_pool, config);
gst_buffer_pool_set_active (priv->internal_pool, TRUE);
return TRUE;
}
#endif
static gboolean
gst_qsv_decoder_prepare_system_pool (GstQsvDecoder * self,
GstCaps * caps, GstVideoInfo * info, GstVideoAlignment * align)
{
GstQsvDecoderPrivate *priv = self->priv;
GstStructure *config;
GST_DEBUG_OBJECT (self, "Use system memory pool");
priv->internal_pool = gst_video_buffer_pool_new ();
config = gst_buffer_pool_get_config (priv->internal_pool);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
gst_buffer_pool_config_set_video_alignment (config, align);
gst_buffer_pool_config_set_params (config,
caps, GST_VIDEO_INFO_SIZE (info), 0, 0);
gst_buffer_pool_set_config (priv->internal_pool, config);
gst_buffer_pool_set_active (priv->internal_pool, TRUE);
return TRUE;
}
static gboolean
gst_qsv_decoder_prepare_pool (GstQsvDecoder * self, mfxU16 * io_pattern)
{
GstQsvDecoderPrivate *priv = self->priv;
gboolean ret = FALSE;
GstCaps *caps;
GstVideoAlignment align;
if (priv->internal_pool) {
gst_buffer_pool_set_active (priv->internal_pool, FALSE);
gst_clear_object (&priv->internal_pool);
}
caps = gst_video_info_to_caps (&priv->info);
if (!caps) {
GST_ERROR_OBJECT (self, "Failed to convet video-info to caps");
return FALSE;
}
gst_video_alignment_reset (&align);
align.padding_right = priv->aligned_info.width - priv->info.width;
align.padding_bottom = priv->aligned_info.height - priv->info.height;
/* TODO: Add Linux video memory (VA/DMABuf) support */
#ifdef G_OS_WIN32
if (priv->use_video_memory) {
priv->mem_type = GST_QSV_VIDEO_MEMORY | GST_QSV_DECODER_OUT_MEMORY;
*io_pattern = MFX_IOPATTERN_OUT_VIDEO_MEMORY;
ret = gst_qsv_decoder_prepare_d3d11_pool (self, caps, &priv->info, &align);
}
#endif
if (!ret) {
priv->mem_type = GST_QSV_SYSTEM_MEMORY | GST_QSV_DECODER_OUT_MEMORY;
*io_pattern = MFX_IOPATTERN_OUT_SYSTEM_MEMORY;
ret = gst_qsv_decoder_prepare_system_pool (self, caps, &priv->info, &align);
}
gst_caps_unref (caps);
return ret;
}
static gboolean
gst_qsv_decoder_init_session (GstQsvDecoder * self)
{
GstQsvDecoderPrivate *priv = self->priv;
mfxVideoParam *param = &priv->video_param;
mfxFrameInfo *frame_info = &param->mfx.FrameInfo;
MFXVideoDECODE *decoder_handle = nullptr;
mfxFrameAllocRequest request;
mfxStatus status;
GST_DEBUG_OBJECT (self, "Init session");
memset (&request, 0, sizeof (mfxFrameAllocRequest));
gst_qsv_decoder_reset (self);
if (!gst_qsv_decoder_prepare_pool (self, &param->IOPattern)) {
GST_ERROR_OBJECT (self, "Failed to prepare pool");
goto error;
}
param->AsyncDepth = priv->is_live ? 1 : 4;
decoder_handle = new MFXVideoDECODE (priv->session);
/* Additional 4 frames for margin. Actually large pool size would be fine
* because we don't pre-allocate underlying output memory objects */
gst_qsv_allocator_set_options (priv->allocator, param->AsyncDepth + 4, TRUE);
status = decoder_handle->Query (param, param);
QSV_CHECK_STATUS (self, status, MFXVideoDECODE::Query);
status = decoder_handle->QueryIOSurf (param, &request);
QSV_CHECK_STATUS (self, status, MFXVideoDECODE::QueryIOSurf);
status = decoder_handle->Init (param);
QSV_CHECK_STATUS (self, status, MFXVideoDECODE::Init);
status = decoder_handle->GetVideoParam (param);
QSV_CHECK_STATUS (self, status, MFXVideoDECODE::GetVideoParam);
/* In case that we use video memory, MFXVideoDECODE::Init() will invoke
* mfxFrameAllocator::Alloc(). Pull the pre-allocated dummy GstQsvFrame
* objects here and fill with GstBuffer later when needed */
if (GST_QSV_MEM_TYPE_IS_SYSTEM (priv->mem_type)) {
mfxFrameAllocator *alloc_handle =
gst_qsv_allocator_get_allocator_handle (priv->allocator);
request.Type |= MFX_MEMTYPE_EXTERNAL_FRAME;
status = alloc_handle->Alloc ((mfxHDL) priv->allocator, &request,
&priv->response);
if (status != MFX_ERR_NONE) {
GST_ERROR_OBJECT (self, "Failed to allocate system memory frames");
goto error;
}
} else if (!gst_qsv_allocator_get_cached_response (priv->allocator,
&priv->response)) {
GST_ERROR_OBJECT (self, "Failed to get cached response");
goto error;
}
g_array_set_size (priv->surface_pool, priv->response.NumFrameActual);
for (guint i = 0; i < priv->surface_pool->len; i++) {
GstQsvDecoderSurface *surface = &g_array_index (priv->surface_pool,
GstQsvDecoderSurface, i);
GstBuffer *buf;
gst_qsv_decoder_surface_clear (surface);
surface->surface.Info = *frame_info;
surface->surface.Data.MemId = priv->response.mids[i];
/* holds casted object without ref, to make code cleaner */
surface->frame = (GstQsvFrame *) surface->surface.Data.MemId;
/* This frame must not hold buffer at this moment */
buf = gst_qsv_frame_peek_buffer (surface->frame);
g_assert (buf == nullptr);
}
g_array_set_size (priv->task_pool, param->AsyncDepth);
for (guint i = 0; i < priv->task_pool->len; i++) {
GstQsvDecoderTask *task = &g_array_index (priv->task_pool,
GstQsvDecoderTask, i);
gst_qsv_decoder_task_clear (task);
}
priv->next_task_index = 0;
priv->decoder = decoder_handle;
return TRUE;
error:
if (decoder_handle)
delete decoder_handle;
gst_qsv_decoder_reset (self);
return FALSE;
}
static gboolean
gst_qsv_decoder_negotiate_internal (GstVideoDecoder * decoder,
const mfxFrameInfo * frame_info)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
GstQsvDecoderPrivate *priv = self->priv;
guint width, height;
width = frame_info->Width;
height = frame_info->Height;
if (frame_info->CropW > 0 && frame_info->CropH > 0) {
width = frame_info->CropW;
height = frame_info->CropH;
}
g_clear_pointer (&priv->output_state, gst_video_codec_state_unref);
priv->output_state =
gst_video_decoder_set_interlaced_output_state (GST_VIDEO_DECODER (self),
GST_VIDEO_INFO_FORMAT (&priv->info),
GST_VIDEO_INFO_INTERLACE_MODE (&priv->info),
width, height, priv->input_state);
priv->output_state->caps = gst_video_info_to_caps (&priv->output_state->info);
priv->use_video_memory = FALSE;
#ifdef G_OS_WIN32
GstCaps *peer_caps =
gst_pad_get_allowed_caps (GST_VIDEO_DECODER_SRC_PAD (self));
GST_DEBUG_OBJECT (self, "Allowed caps %" GST_PTR_FORMAT, peer_caps);
if (!peer_caps || gst_caps_is_any (peer_caps)) {
GST_DEBUG_OBJECT (self,
"cannot determine output format, use system memory");
} else {
GstCapsFeatures *features;
guint size = gst_caps_get_size (peer_caps);
for (guint i = 0; i < size; i++) {
features = gst_caps_get_features (peer_caps, i);
if (!features)
continue;
if (gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY)) {
priv->use_video_memory = TRUE;
break;
}
}
}
gst_clear_caps (&peer_caps);
if (priv->use_video_memory) {
GST_DEBUG_OBJECT (self, "Downstream supports D3D11 memory");
gst_caps_set_features (priv->output_state->caps, 0,
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, nullptr));
}
#endif
GST_DEBUG_OBJECT (self,
"Negotiating with %" GST_PTR_FORMAT, priv->output_state->caps);
return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder);
}
static gboolean
gst_qsv_decoder_negotiate (GstVideoDecoder * decoder)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
GstQsvDecoderPrivate *priv = self->priv;
GstQsvDecoderClass *klass = GST_QSV_DECODER_GET_CLASS (self);
guint width, height;
guint coded_width, coded_height;
guint aligned_width, aligned_height;
mfxVideoParam *param = &priv->video_param;
mfxFrameInfo *frame_info = &param->mfx.FrameInfo;
GstVideoFormat format = GST_VIDEO_FORMAT_UNKNOWN;
GstVideoInterlaceMode interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
width = coded_width = frame_info->Width;
height = coded_height = frame_info->Height;
if (frame_info->CropW > 0 && frame_info->CropH > 0) {
width = frame_info->CropW;
height = frame_info->CropH;
}
switch (frame_info->FourCC) {
case MFX_FOURCC_NV12:
format = GST_VIDEO_FORMAT_NV12;
break;
case MFX_FOURCC_P010:
format = GST_VIDEO_FORMAT_P010_10LE;
break;
case MFX_FOURCC_P016:
format = GST_VIDEO_FORMAT_P016_LE;
break;
case MFX_FOURCC_RGB4:
format = GST_VIDEO_FORMAT_BGRA;
break;
default:
break;
}
if (klass->codec_id == MFX_CODEC_JPEG) {
if (param->mfx.JPEGChromaFormat == MFX_CHROMAFORMAT_YUV422) {
format = GST_VIDEO_FORMAT_YUY2;
frame_info->FourCC = MFX_FOURCC_YUY2;
frame_info->ChromaFormat = MFX_CHROMAFORMAT_YUV422;
} else if (param->mfx.JPEGColorFormat == MFX_JPEG_COLORFORMAT_RGB) {
format = GST_VIDEO_FORMAT_BGRA;
frame_info->FourCC = MFX_FOURCC_RGB4;
frame_info->ChromaFormat = MFX_CHROMAFORMAT_YUV444;
}
}
if (format == GST_VIDEO_FORMAT_UNKNOWN) {
GST_ERROR_OBJECT (self, "Unknown video format");
return FALSE;
}
aligned_width = GST_ROUND_UP_16 (coded_width);
if (klass->codec_id == MFX_CODEC_AVC) {
if (frame_info->PicStruct == MFX_PICSTRUCT_PROGRESSIVE) {
aligned_height = GST_ROUND_UP_16 (coded_height);
} else {
aligned_height = GST_ROUND_UP_32 (coded_height);
/* In theory, tff/bff can be altered in a sequence */
interlace_mode = GST_VIDEO_INTERLACE_MODE_MIXED;
}
} else {
aligned_height = GST_ROUND_UP_16 (coded_height);
}
frame_info->Width = aligned_width;
frame_info->Height = aligned_height;
gst_video_info_set_interlaced_format (&priv->info, format,
interlace_mode, width, height);
gst_video_info_set_interlaced_format (&priv->aligned_info, format,
interlace_mode, aligned_width, aligned_height);
return gst_qsv_decoder_negotiate_internal (decoder,
&priv->video_param.mfx.FrameInfo);
}
#ifdef G_OS_WIN32
static gboolean
gst_qsv_decoder_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
GstQsvDecoderPrivate *priv = self->priv;
GstCaps *outcaps;
GstBufferPool *pool = nullptr;
guint n, size, min = 0, max = 0;
GstVideoInfo vinfo;
GstStructure *config;
GstD3D11AllocationParams *d3d11_params;
gboolean use_d3d11_pool;
GstD3D11Device *device = GST_D3D11_DEVICE (priv->device);
gst_query_parse_allocation (query, &outcaps, nullptr);
if (!outcaps) {
GST_DEBUG_OBJECT (decoder, "No output caps");
return FALSE;
}
priv->have_video_meta = gst_query_find_allocation_meta (query,
GST_VIDEO_META_API_TYPE, nullptr);
use_d3d11_pool = priv->use_video_memory;
gst_video_info_from_caps (&vinfo, outcaps);
n = gst_query_get_n_allocation_pools (query);
if (n > 0)
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (pool && use_d3d11_pool) {
if (!GST_IS_D3D11_BUFFER_POOL (pool)) {
GST_DEBUG_OBJECT (self,
"Downstream pool is not d3d11, will create new one");
gst_clear_object (&pool);
} else {
GstD3D11BufferPool *dpool = GST_D3D11_BUFFER_POOL (pool);
if (dpool->device != device) {
GST_DEBUG_OBJECT (self, "Different device, will create new one");
gst_clear_object (&pool);
}
}
}
if (!pool) {
if (use_d3d11_pool)
pool = gst_d3d11_buffer_pool_new (device);
else
pool = gst_video_buffer_pool_new ();
size = (guint) vinfo.size;
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
/* Decoder will use internal pool to output but this pool is required for
* copying in case of reverse playback */
if (use_d3d11_pool) {
guint bind_flags = 0;
GstD3D11Format d3d11_format;
d3d11_params = gst_buffer_pool_config_get_d3d11_allocation_params (config);
if (!d3d11_params) {
d3d11_params = gst_d3d11_allocation_params_new (device, &vinfo,
GST_D3D11_ALLOCATION_FLAG_DEFAULT, 0, 0);
}
gst_d3d11_device_get_format (device, GST_VIDEO_INFO_FORMAT (&vinfo),
&d3d11_format);
/* Use both render target (for videoprocessor) and shader resource
* for (pixel shader) bind flags for downstream to be able to use consistent
* conversion path even when we copy textures */
if ((d3d11_format.format_support[0] &
(guint) D3D11_FORMAT_SUPPORT_RENDER_TARGET) != 0) {
bind_flags |= D3D11_BIND_RENDER_TARGET;
}
if ((d3d11_format.format_support[0] & (guint)
D3D11_FORMAT_SUPPORT_SHADER_SAMPLE) != 0)
bind_flags |= D3D11_BIND_SHADER_RESOURCE;
gst_d3d11_allocation_params_set_bind_flags (d3d11_params, bind_flags);
gst_buffer_pool_config_set_d3d11_allocation_params (config, d3d11_params);
gst_d3d11_allocation_params_free (d3d11_params);
}
gst_buffer_pool_set_config (pool, config);
/* d3d11 buffer pool will update buffer size based on allocated texture,
* get size from config again */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, nullptr, &size, nullptr, nullptr);
gst_structure_free (config);
if (n > 0)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query);
}
#else
static gboolean
gst_qsv_decoder_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
/* TODO: add VA support */
return GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query);
}
#endif /* G_OS_WIN32 */
static gboolean
gst_qsv_decoder_handle_context_query (GstQsvDecoder * self, GstQuery * query)
{
GstQsvDecoderPrivate *priv = self->priv;
#ifdef G_OS_WIN32
return gst_d3d11_handle_context_query (GST_ELEMENT (self), query,
(GstD3D11Device *) priv->device);
#else
return gst_va_handle_context_query (GST_ELEMENT (self), query,
(GstVaDisplay *) priv->device);
#endif
}
static gboolean
gst_qsv_decoder_sink_query (GstVideoDecoder * decoder, GstQuery * query)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_qsv_decoder_handle_context_query (self, query))
return TRUE;
break;
default:
break;
}
return GST_VIDEO_DECODER_CLASS (parent_class)->sink_query (decoder, query);
}
static gboolean
gst_qsv_decoder_src_query (GstVideoDecoder * decoder, GstQuery * query)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_qsv_decoder_handle_context_query (self, query))
return TRUE;
break;
default:
break;
}
return GST_VIDEO_DECODER_CLASS (parent_class)->src_query (decoder, query);
}
static GstFlowReturn
gst_qsv_decoder_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
GstQsvDecoderClass *klass = GST_QSV_DECODER_GET_CLASS (self);
GstQsvDecoderPrivate *priv = self->priv;
mfxBitstream bs;
GstMapInfo info;
mfxStatus status;
GstFlowReturn ret = GST_FLOW_ERROR;
gboolean was_reconfigured = FALSE;
GstBuffer *input_buf = nullptr;
if (klass->process_input) {
input_buf = klass->process_input (self, priv->decoder ? FALSE : TRUE,
frame->input_buffer);
} else {
input_buf = gst_buffer_ref (frame->input_buffer);
}
if (!input_buf || !gst_buffer_map (input_buf, &info, GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "Failed to map input buffer");
gst_clear_buffer (&input_buf);
gst_video_decoder_release_frame (decoder, frame);
return GST_FLOW_ERROR;
}
memset (&bs, 0, sizeof (mfxBitstream));
bs.Data = (mfxU8 *) info.data;
bs.DataLength = bs.MaxLength = (mfxU32) info.size;
bs.TimeStamp = gst_qsv_timestamp_from_gst (frame->pts);
new_sequence:
if (!priv->decoder) {
status = MFXVideoDECODE_DecodeHeader (priv->session,
&bs, &priv->video_param);
if (status != MFX_ERR_NONE) {
if (status == MFX_ERR_MORE_DATA) {
GST_WARNING_OBJECT (self, "Need more date to parse header");
ret = GST_FLOW_OK;
} else {
GST_ERROR_OBJECT (self, "Failed to parse header %d (%s)",
QSV_STATUS_ARGS (status));
}
goto unmap_and_error;
}
if (!gst_video_decoder_negotiate (decoder)) {
GST_ERROR_OBJECT (self, "Failed to negotiate");
ret = GST_FLOW_NOT_NEGOTIATED;
goto unmap_and_error;
}
if (!gst_qsv_decoder_init_session (self)) {
GST_ERROR_OBJECT (self, "Failed to init session");
return GST_FLOW_ERROR;
}
}
if (!priv->decoder) {
GST_ERROR_OBJECT (self, "Decoder object was not configured");
ret = GST_FLOW_NOT_NEGOTIATED;
goto unmap_and_error;
}
ret = gst_qsv_decoder_decode_frame (self, &bs, FALSE);
switch (ret) {
case GST_QSV_DECODER_FLOW_NEW_SEQUENCE:
if (!was_reconfigured) {
gst_qsv_decoder_drain_internal (self, FALSE);
gst_qsv_decoder_reset (self);
was_reconfigured = TRUE;
goto new_sequence;
}
ret = GST_FLOW_ERROR;
break;
case GST_VIDEO_DECODER_FLOW_NEED_DATA:
ret = GST_FLOW_OK;
break;
default:
break;
}
gst_buffer_unmap (input_buf, &info);
gst_buffer_unref (input_buf);
gst_video_codec_frame_unref (frame);
return ret;
unmap_and_error:
gst_buffer_unmap (input_buf, &info);
gst_buffer_unref (input_buf);
gst_video_decoder_release_frame (decoder, frame);
return ret;
}
static gboolean
gst_qsv_decoder_flush (GstVideoDecoder * decoder)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
GST_DEBUG_OBJECT (self, "Flush");
gst_qsv_decoder_drain_internal (self, TRUE);
return TRUE;
}
static GstFlowReturn
gst_qsv_decoder_finish (GstVideoDecoder * decoder)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
GST_DEBUG_OBJECT (self, "Finish");
return gst_qsv_decoder_drain_internal (self, FALSE);
}
static GstFlowReturn
gst_qsv_decoder_drain (GstVideoDecoder * decoder)
{
GstQsvDecoder *self = GST_QSV_DECODER (decoder);
GST_DEBUG_OBJECT (self, "Drain");
return gst_qsv_decoder_drain_internal (self, FALSE);
}