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gstreamer/sys/msdk/gstmsdkenc.c
Haihao Xiang 9aa68dea51 msdk: set the right BRCParamMultiplier 
BRCParamMultiplier in mfxInfoMFX is a parameter which specifies a
multiplier for bitrate control parameters [1], it impacts TargetKbps,
MaxKbps, BufferSizeInKB and InitialDelayInKB.

[1]: https://software.intel.com/en-us/node/628473
2019-01-11 09:57:44 +00:00

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/* GStreamer Intel MSDK plugin
* Copyright (c) 2016, Oblong Industries, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* TODO:
* - Add support for interlaced content
* - Add support for MVC AVC
* - Wrap more configuration options and maybe move properties to derived
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef _WIN32
# include <malloc.h>
#endif
#include <stdlib.h>
#include "gstmsdkenc.h"
#include "gstmsdkbufferpool.h"
#include "gstmsdkvideomemory.h"
#include "gstmsdksystemmemory.h"
#include "gstmsdkcontextutil.h"
#ifndef _WIN32
#include "gstmsdkallocator_libva.h"
#endif
static inline void *
_aligned_alloc (size_t alignment, size_t size)
{
#ifdef _WIN32
return _aligned_malloc (size, alignment);
#else
void *out;
if (posix_memalign (&out, alignment, size) != 0)
out = NULL;
return out;
#endif
}
#ifndef _WIN32
#define _aligned_free free
#endif
static void gst_msdkenc_close_encoder (GstMsdkEnc * thiz);
GST_DEBUG_CATEGORY_EXTERN (gst_msdkenc_debug);
#define GST_CAT_DEFAULT gst_msdkenc_debug
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw, "
"format = (string) { NV12, I420, YV12, YUY2, UYVY, BGRA }, "
"framerate = (fraction) [0, MAX], "
"width = (int) [ 16, MAX ], height = (int) [ 16, MAX ],"
"interlace-mode = (string) progressive" ";"
GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_DMABUF,
"{ NV12 }")));
#define PROP_HARDWARE_DEFAULT TRUE
#define PROP_ASYNC_DEPTH_DEFAULT 4
#define PROP_TARGET_USAGE_DEFAULT (MFX_TARGETUSAGE_BALANCED)
#define PROP_RATE_CONTROL_DEFAULT (MFX_RATECONTROL_CBR)
#define PROP_BITRATE_DEFAULT (2 * 1024)
#define PROP_QPI_DEFAULT 0
#define PROP_QPP_DEFAULT 0
#define PROP_QPB_DEFAULT 0
#define PROP_GOP_SIZE_DEFAULT 256
#define PROP_REF_FRAMES_DEFAULT 1
#define PROP_I_FRAMES_DEFAULT 0
#define PROP_B_FRAMES_DEFAULT 0
#define PROP_NUM_SLICES_DEFAULT 0
#define PROP_AVBR_ACCURACY_DEFAULT 0
#define PROP_AVBR_CONVERGENCE_DEFAULT 0
#define PROP_RC_LOOKAHEAD_DEPTH_DEFAULT 10
#define PROP_MAX_VBV_BITRATE_DEFAULT 0
#define PROP_MAX_FRAME_SIZE_DEFAULT 0
#define PROP_MBBRC_DEFAULT MFX_CODINGOPTION_OFF
#define PROP_ADAPTIVE_I_DEFAULT MFX_CODINGOPTION_OFF
#define PROP_ADAPTIVE_B_DEFAULT MFX_CODINGOPTION_OFF
#define gst_msdkenc_parent_class parent_class
G_DEFINE_TYPE (GstMsdkEnc, gst_msdkenc, GST_TYPE_VIDEO_ENCODER);
typedef struct
{
mfxFrameSurface1 *surface;
GstBuffer *buf;
} MsdkSurface;
void
gst_msdkenc_add_extra_param (GstMsdkEnc * thiz, mfxExtBuffer * param)
{
if (thiz->num_extra_params < MAX_EXTRA_PARAMS) {
thiz->extra_params[thiz->num_extra_params] = param;
thiz->num_extra_params++;
}
}
static void
gst_msdkenc_set_context (GstElement * element, GstContext * context)
{
GstMsdkContext *msdk_context = NULL;
GstMsdkEnc *thiz = GST_MSDKENC (element);
if (gst_msdk_context_get_context (context, &msdk_context)) {
gst_object_replace ((GstObject **) & thiz->context,
(GstObject *) msdk_context);
gst_object_unref (msdk_context);
}
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static void
ensure_bitrate_control (GstMsdkEnc * thiz)
{
mfxInfoMFX *mfx = &thiz->param.mfx;
mfxExtCodingOption2 *option2 = &thiz->option2;
mfxExtCodingOption3 *option3 = &thiz->option3;
mfx->RateControlMethod = thiz->rate_control;
/* No effect in CQP varient algorithms */
if ((mfx->RateControlMethod != MFX_RATECONTROL_CQP) &&
(thiz->bitrate > G_MAXUINT16 || thiz->max_vbv_bitrate > G_MAXUINT16)) {
mfxU32 max_val = MAX (thiz->max_vbv_bitrate, thiz->bitrate);
mfx->BRCParamMultiplier = (mfxU16) ((max_val + 0x10000) / 0x10000);
mfx->TargetKbps = (mfxU16) (thiz->bitrate / mfx->BRCParamMultiplier);
mfx->MaxKbps = (mfxU16) (thiz->max_vbv_bitrate / mfx->BRCParamMultiplier);
mfx->BufferSizeInKB =
(mfxU16) (mfx->BufferSizeInKB / mfx->BRCParamMultiplier);
/* Currently InitialDelayInKB is not used in this plugin */
mfx->InitialDelayInKB =
(mfxU16) (mfx->InitialDelayInKB / mfx->BRCParamMultiplier);
} else {
mfx->TargetKbps = thiz->bitrate;
mfx->MaxKbps = thiz->max_vbv_bitrate;
mfx->BRCParamMultiplier = 1;
}
switch (mfx->RateControlMethod) {
case MFX_RATECONTROL_CQP:
mfx->QPI = thiz->qpi;
mfx->QPP = thiz->qpp;
mfx->QPB = thiz->qpb;
break;
case MFX_RATECONTROL_LA_ICQ:
option2->LookAheadDepth = thiz->lookahead_depth;
case MFX_RATECONTROL_ICQ:
mfx->ICQQuality = CLAMP (thiz->qpi, 1, 51);
break;
case MFX_RATECONTROL_LA: /* VBR with LA. Only supported in H264?? */
case MFX_RATECONTROL_LA_HRD: /* VBR with LA, HRD compliant */
option2->LookAheadDepth = thiz->lookahead_depth;
break;
case MFX_RATECONTROL_QVBR:
option3->QVBRQuality = CLAMP (thiz->qpi, 1, 51);
thiz->enable_extopt3 = TRUE;
break;
case MFX_RATECONTROL_AVBR:
mfx->Accuracy = thiz->accuracy;
mfx->Convergence = thiz->convergence;
break;
case MFX_RATECONTROL_VBR:
option2->MaxFrameSize = thiz->max_frame_size * 1000;
break;
case MFX_RATECONTROL_VCM:
/*Non HRD compliant mode with no B-frame and interlaced support */
thiz->param.mfx.GopRefDist = 0;
break;
case MFX_RATECONTROL_CBR:
break;
default:
GST_ERROR ("Unsupported RateControl!");
break;
}
}
void
gst_msdkenc_ensure_extended_coding_options (GstMsdkEnc * thiz)
{
mfxExtCodingOption2 *option2 = &thiz->option2;
mfxExtCodingOption3 *option3 = &thiz->option3;
/* Fill ExtendedCodingOption2, set non-zero defaults too */
option2->Header.BufferId = MFX_EXTBUFF_CODING_OPTION2;
option2->Header.BufferSz = sizeof (thiz->option2);
option2->MBBRC = thiz->mbbrc;
option2->AdaptiveI = thiz->adaptive_i;
option2->AdaptiveB = thiz->adaptive_b;
option2->BitrateLimit = MFX_CODINGOPTION_OFF;
option2->EnableMAD = MFX_CODINGOPTION_OFF;
option2->UseRawRef = MFX_CODINGOPTION_OFF;
gst_msdkenc_add_extra_param (thiz, (mfxExtBuffer *) option2);
if (thiz->enable_extopt3) {
option3->Header.BufferId = MFX_EXTBUFF_CODING_OPTION3;
option3->Header.BufferSz = sizeof (thiz->option3);
gst_msdkenc_add_extra_param (thiz, (mfxExtBuffer *) option3);
}
}
static gboolean
gst_msdkenc_init_encoder (GstMsdkEnc * thiz)
{
GstMsdkEncClass *klass = GST_MSDKENC_GET_CLASS (thiz);
GstVideoInfo *info;
mfxSession session;
mfxStatus status;
mfxFrameAllocRequest request[2];
guint i;
if (thiz->initialized)
return TRUE;
if (!thiz->context) {
GST_WARNING_OBJECT (thiz, "No MSDK Context");
return FALSE;
}
if (!thiz->input_state) {
GST_DEBUG_OBJECT (thiz, "Have no input state yet");
return FALSE;
}
info = &thiz->input_state->info;
GST_OBJECT_LOCK (thiz);
session = gst_msdk_context_get_session (thiz->context);
thiz->has_vpp = FALSE;
if (thiz->use_video_memory)
gst_msdk_set_frame_allocator (thiz->context);
/* Check 10bit input */
if (GST_VIDEO_INFO_COMP_DEPTH (info, 0) == 10) {
if (GST_VIDEO_INFO_FORMAT (info) != GST_VIDEO_FORMAT_P010_10LE) {
GST_WARNING_OBJECT (thiz,
"P010_10LE is the only supported 10bit format\n");
goto failed;
}
} else if (GST_VIDEO_INFO_FORMAT (info) != GST_VIDEO_FORMAT_NV12) {
if (thiz->use_video_memory)
thiz->vpp_param.IOPattern =
MFX_IOPATTERN_IN_VIDEO_MEMORY | MFX_IOPATTERN_OUT_VIDEO_MEMORY;
else
thiz->vpp_param.IOPattern =
MFX_IOPATTERN_IN_SYSTEM_MEMORY | MFX_IOPATTERN_OUT_SYSTEM_MEMORY;
thiz->vpp_param.vpp.In.Width = GST_ROUND_UP_16 (info->width);
thiz->vpp_param.vpp.In.Height = GST_ROUND_UP_32 (info->height);
thiz->vpp_param.vpp.In.CropW = info->width;
thiz->vpp_param.vpp.In.CropH = info->height;
thiz->vpp_param.vpp.In.FrameRateExtN = info->fps_n;
thiz->vpp_param.vpp.In.FrameRateExtD = info->fps_d;
thiz->vpp_param.vpp.In.AspectRatioW = info->par_n;
thiz->vpp_param.vpp.In.AspectRatioH = info->par_d;
thiz->vpp_param.vpp.In.PicStruct = MFX_PICSTRUCT_PROGRESSIVE;
switch (GST_VIDEO_INFO_FORMAT (info)) {
case GST_VIDEO_FORMAT_NV12:
thiz->vpp_param.vpp.In.FourCC = MFX_FOURCC_NV12;
thiz->vpp_param.vpp.In.ChromaFormat = MFX_CHROMAFORMAT_YUV420;
break;
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_I420:
thiz->vpp_param.vpp.In.FourCC = MFX_FOURCC_YV12;
thiz->vpp_param.vpp.In.ChromaFormat = MFX_CHROMAFORMAT_YUV420;
break;
case GST_VIDEO_FORMAT_YUY2:
thiz->vpp_param.vpp.In.FourCC = MFX_FOURCC_YUY2;
thiz->vpp_param.vpp.In.ChromaFormat = MFX_CHROMAFORMAT_YUV422;
break;
case GST_VIDEO_FORMAT_UYVY:
thiz->vpp_param.vpp.In.FourCC = MFX_FOURCC_UYVY;
thiz->vpp_param.vpp.In.ChromaFormat = MFX_CHROMAFORMAT_YUV422;
break;
case GST_VIDEO_FORMAT_BGRA:
thiz->vpp_param.vpp.In.FourCC = MFX_FOURCC_RGB4;
thiz->vpp_param.vpp.In.ChromaFormat = MFX_CHROMAFORMAT_YUV444;
break;
default:
g_assert_not_reached ();
break;
}
thiz->vpp_param.vpp.Out = thiz->vpp_param.vpp.In;
thiz->vpp_param.vpp.Out.FourCC = MFX_FOURCC_NV12;
thiz->vpp_param.vpp.Out.ChromaFormat = MFX_CHROMAFORMAT_YUV420;
/* validate parameters and allow the Media SDK to make adjustments */
status = MFXVideoVPP_Query (session, &thiz->vpp_param, &thiz->vpp_param);
if (status < MFX_ERR_NONE) {
GST_ERROR_OBJECT (thiz, "Video VPP Query failed (%s)",
msdk_status_to_string (status));
goto no_vpp;
} else if (status > MFX_ERR_NONE) {
GST_WARNING_OBJECT (thiz, "Video VPP Query returned: %s",
msdk_status_to_string (status));
}
status = MFXVideoVPP_QueryIOSurf (session, &thiz->vpp_param, request);
if (status < MFX_ERR_NONE) {
GST_ERROR_OBJECT (thiz, "VPP Query IO surfaces failed (%s)",
msdk_status_to_string (status));
goto no_vpp;
} else if (status > MFX_ERR_NONE) {
GST_WARNING_OBJECT (thiz, "VPP Query IO surfaces returned: %s",
msdk_status_to_string (status));
}
if (thiz->use_video_memory)
request[0].NumFrameSuggested +=
gst_msdk_context_get_shared_async_depth (thiz->context);
thiz->num_vpp_surfaces = request[0].NumFrameSuggested;
if (thiz->use_video_memory)
gst_msdk_frame_alloc (thiz->context, &(request[0]),
&thiz->vpp_alloc_resp);
status = MFXVideoVPP_Init (session, &thiz->vpp_param);
if (status < MFX_ERR_NONE) {
GST_ERROR_OBJECT (thiz, "Init failed (%s)",
msdk_status_to_string (status));
goto no_vpp;
} else if (status > MFX_ERR_NONE) {
GST_WARNING_OBJECT (thiz, "Init returned: %s",
msdk_status_to_string (status));
}
status = MFXVideoVPP_GetVideoParam (session, &thiz->vpp_param);
if (status < MFX_ERR_NONE) {
mfxStatus status1;
GST_ERROR_OBJECT (thiz, "Get VPP Parameters failed (%s)",
msdk_status_to_string (status));
status1 = MFXVideoVPP_Close (session);
if (status1 != MFX_ERR_NONE && status1 != MFX_ERR_NOT_INITIALIZED)
GST_WARNING_OBJECT (thiz, "VPP close failed (%s)",
msdk_status_to_string (status1));
goto no_vpp;
} else if (status > MFX_ERR_NONE) {
GST_WARNING_OBJECT (thiz, "Get VPP Parameters returned: %s",
msdk_status_to_string (status));
}
thiz->has_vpp = TRUE;
}
thiz->param.AsyncDepth = thiz->async_depth;
if (thiz->use_video_memory)
thiz->param.IOPattern = MFX_IOPATTERN_IN_VIDEO_MEMORY;
else
thiz->param.IOPattern = MFX_IOPATTERN_IN_SYSTEM_MEMORY;
thiz->param.mfx.TargetUsage = thiz->target_usage;
thiz->param.mfx.GopPicSize = thiz->gop_size;
thiz->param.mfx.GopRefDist = thiz->b_frames + 1;
thiz->param.mfx.IdrInterval = thiz->i_frames;
thiz->param.mfx.NumSlice = thiz->num_slices;
thiz->param.mfx.NumRefFrame = thiz->ref_frames;
thiz->param.mfx.EncodedOrder = 0; /* Take input frames in display order */
thiz->param.mfx.FrameInfo.Width = GST_ROUND_UP_16 (info->width);
thiz->param.mfx.FrameInfo.Height = GST_ROUND_UP_32 (info->height);
thiz->param.mfx.FrameInfo.CropW = info->width;
thiz->param.mfx.FrameInfo.CropH = info->height;
thiz->param.mfx.FrameInfo.FrameRateExtN = info->fps_n;
thiz->param.mfx.FrameInfo.FrameRateExtD = info->fps_d;
thiz->param.mfx.FrameInfo.AspectRatioW = info->par_n;
thiz->param.mfx.FrameInfo.AspectRatioH = info->par_d;
thiz->param.mfx.FrameInfo.PicStruct = MFX_PICSTRUCT_PROGRESSIVE;
thiz->param.mfx.FrameInfo.ChromaFormat = MFX_CHROMAFORMAT_YUV420;
if (GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_P010_10LE) {
thiz->param.mfx.FrameInfo.FourCC = MFX_FOURCC_P010;
thiz->param.mfx.FrameInfo.BitDepthLuma = 10;
thiz->param.mfx.FrameInfo.BitDepthChroma = 10;
thiz->param.mfx.FrameInfo.Shift = 1;
} else {
thiz->param.mfx.FrameInfo.FourCC = MFX_FOURCC_NV12;
thiz->param.mfx.FrameInfo.BitDepthLuma = 8;
thiz->param.mfx.FrameInfo.BitDepthChroma = 8;
}
/* ensure bitrate control parameters */
ensure_bitrate_control (thiz);
/* allow subclass configure further */
if (klass->configure) {
if (!klass->configure (thiz))
goto failed;
}
if (thiz->num_extra_params) {
thiz->param.NumExtParam = thiz->num_extra_params;
thiz->param.ExtParam = thiz->extra_params;
}
/* validate parameters and allow the Media SDK to make adjustments */
status = MFXVideoENCODE_Query (session, &thiz->param, &thiz->param);
if (status < MFX_ERR_NONE) {
GST_ERROR_OBJECT (thiz, "Video Encode Query failed (%s)",
msdk_status_to_string (status));
goto failed;
} else if (status > MFX_ERR_NONE) {
GST_WARNING_OBJECT (thiz, "Video Encode Query returned: %s",
msdk_status_to_string (status));
}
status = MFXVideoENCODE_QueryIOSurf (session, &thiz->param, request);
if (status < MFX_ERR_NONE) {
GST_ERROR_OBJECT (thiz, "Encode Query IO surfaces failed (%s)",
msdk_status_to_string (status));
goto failed;
} else if (status > MFX_ERR_NONE) {
GST_WARNING_OBJECT (thiz, "Encode Query IO surfaces returned: %s",
msdk_status_to_string (status));
}
if (thiz->has_vpp)
request[0].NumFrameSuggested += thiz->num_vpp_surfaces + 1 - 4;
if (thiz->use_video_memory) {
if (thiz->use_dmabuf && !thiz->has_vpp)
request[0].Type |= MFX_MEMTYPE_EXPORT_FRAME;
gst_msdk_frame_alloc (thiz->context, &(request[0]), &thiz->alloc_resp);
}
/* Maximum of VPP output and encoder input, if using VPP */
if (thiz->has_vpp)
request[0].NumFrameSuggested =
MAX (request[0].NumFrameSuggested, request[1].NumFrameSuggested);
if (request[0].NumFrameSuggested < thiz->param.AsyncDepth) {
GST_ERROR_OBJECT (thiz, "Required %d surfaces (%d suggested), async %d",
request[0].NumFrameMin, request[0].NumFrameSuggested,
thiz->param.AsyncDepth);
goto failed;
}
/* This is VPP output (if any) and encoder input */
thiz->num_surfaces = request[0].NumFrameSuggested;
GST_DEBUG_OBJECT (thiz, "Required %d surfaces (%d suggested), allocated %d",
request[0].NumFrameMin, request[0].NumFrameSuggested, thiz->num_surfaces);
status = MFXVideoENCODE_Init (session, &thiz->param);
if (status < MFX_ERR_NONE) {
GST_ERROR_OBJECT (thiz, "Init failed (%s)", msdk_status_to_string (status));
goto failed;
} else if (status > MFX_ERR_NONE) {
GST_WARNING_OBJECT (thiz, "Init returned: %s",
msdk_status_to_string (status));
}
status = MFXVideoENCODE_GetVideoParam (session, &thiz->param);
if (status < MFX_ERR_NONE) {
GST_ERROR_OBJECT (thiz, "Get Video Parameters failed (%s)",
msdk_status_to_string (status));
goto failed;
} else if (status > MFX_ERR_NONE) {
GST_WARNING_OBJECT (thiz, "Get Video Parameters returned: %s",
msdk_status_to_string (status));
}
thiz->num_tasks = thiz->param.AsyncDepth;
thiz->tasks = g_new0 (MsdkEncTask, thiz->num_tasks);
for (i = 0; i < thiz->num_tasks; i++) {
thiz->tasks[i].output_bitstream.Data = _aligned_alloc (32,
thiz->param.mfx.BufferSizeInKB * thiz->param.mfx.BRCParamMultiplier *
1024);
if (!thiz->tasks[i].output_bitstream.Data) {
GST_ERROR_OBJECT (thiz, "Memory allocation failed");
goto failed;
}
thiz->tasks[i].output_bitstream.MaxLength =
thiz->param.mfx.BufferSizeInKB * thiz->param.mfx.BRCParamMultiplier *
1024;
}
thiz->next_task = 0;
thiz->reconfig = FALSE;
thiz->initialized = TRUE;
GST_OBJECT_UNLOCK (thiz);
return TRUE;
no_vpp:
failed:
GST_OBJECT_UNLOCK (thiz);
return FALSE;
}
static void
gst_msdkenc_close_encoder (GstMsdkEnc * thiz)
{
guint i;
mfxStatus status;
if (!thiz->context || !thiz->initialized)
return;
GST_DEBUG_OBJECT (thiz, "Closing encoder with context %" GST_PTR_FORMAT,
thiz->context);
gst_object_replace ((GstObject **) & thiz->msdk_pool, NULL);
gst_object_replace ((GstObject **) & thiz->msdk_converted_pool, NULL);
if (thiz->use_video_memory)
gst_msdk_frame_free (thiz->context, &thiz->alloc_resp);
status = MFXVideoENCODE_Close (gst_msdk_context_get_session (thiz->context));
if (status != MFX_ERR_NONE && status != MFX_ERR_NOT_INITIALIZED) {
GST_WARNING_OBJECT (thiz, "Encoder close failed (%s)",
msdk_status_to_string (status));
}
if (thiz->tasks) {
for (i = 0; i < thiz->num_tasks; i++) {
MsdkEncTask *task = &thiz->tasks[i];
if (task->output_bitstream.Data) {
_aligned_free (task->output_bitstream.Data);
}
}
}
g_free (thiz->tasks);
thiz->tasks = NULL;
/* Close VPP before freeing the surfaces. They are shared between encoder
* and VPP */
if (thiz->has_vpp) {
if (thiz->use_video_memory)
gst_msdk_frame_free (thiz->context, &thiz->vpp_alloc_resp);
status = MFXVideoVPP_Close (gst_msdk_context_get_session (thiz->context));
if (status != MFX_ERR_NONE && status != MFX_ERR_NOT_INITIALIZED) {
GST_WARNING_OBJECT (thiz, "VPP close failed (%s)",
msdk_status_to_string (status));
}
}
memset (&thiz->param, 0, sizeof (thiz->param));
thiz->num_extra_params = 0;
thiz->initialized = FALSE;
}
typedef struct
{
GstVideoCodecFrame *frame;
MsdkSurface *frame_surface;
MsdkSurface *converted_surface;
} FrameData;
static FrameData *
gst_msdkenc_queue_frame (GstMsdkEnc * thiz, GstVideoCodecFrame * frame,
GstVideoInfo * info)
{
FrameData *fdata;
fdata = g_slice_new (FrameData);
fdata->frame = gst_video_codec_frame_ref (frame);
thiz->pending_frames = g_list_prepend (thiz->pending_frames, fdata);
return fdata;
}
static MsdkSurface *
gst_msdkenc_create_surface (mfxFrameSurface1 * surface, GstBuffer * buf)
{
MsdkSurface *msdk_surface;
msdk_surface = g_slice_new0 (MsdkSurface);
msdk_surface->surface = surface;
msdk_surface->buf = buf;
return msdk_surface;
}
static void
gst_msdkenc_free_surface (MsdkSurface * surface)
{
if (surface->buf)
gst_buffer_unref (surface->buf);
g_slice_free (MsdkSurface, surface);
}
static void
gst_msdkenc_free_frame_data (GstMsdkEnc * thiz, FrameData * fdata)
{
if (fdata->frame_surface)
gst_msdkenc_free_surface (fdata->frame_surface);
if (thiz->has_vpp)
gst_msdkenc_free_surface (fdata->converted_surface);
gst_video_codec_frame_unref (fdata->frame);
g_slice_free (FrameData, fdata);
}
static void
gst_msdkenc_dequeue_frame (GstMsdkEnc * thiz, GstVideoCodecFrame * frame)
{
GList *l;
for (l = thiz->pending_frames; l; l = l->next) {
FrameData *fdata = l->data;
if (fdata->frame != frame)
continue;
gst_msdkenc_free_frame_data (thiz, fdata);
thiz->pending_frames = g_list_delete_link (thiz->pending_frames, l);
return;
}
}
static void
gst_msdkenc_dequeue_all_frames (GstMsdkEnc * thiz)
{
GList *l;
for (l = thiz->pending_frames; l; l = l->next) {
FrameData *fdata = l->data;
gst_msdkenc_free_frame_data (thiz, fdata);
}
g_list_free (thiz->pending_frames);
thiz->pending_frames = NULL;
}
static MsdkEncTask *
gst_msdkenc_get_free_task (GstMsdkEnc * thiz)
{
MsdkEncTask *tasks = thiz->tasks;
guint size = thiz->num_tasks;
guint start = thiz->next_task;
guint i;
if (tasks) {
for (i = 0; i < size; i++) {
guint t = (start + i) % size;
if (tasks[t].sync_point == NULL)
return &tasks[t];
}
}
return NULL;
}
static void
gst_msdkenc_reset_task (MsdkEncTask * task)
{
task->output_bitstream.DataLength = 0;
task->sync_point = NULL;
}
static GstFlowReturn
gst_msdkenc_finish_frame (GstMsdkEnc * thiz, MsdkEncTask * task,
gboolean discard)
{
GstVideoCodecFrame *frame;
if (!task->sync_point)
return GST_FLOW_OK;
frame = gst_video_encoder_get_oldest_frame (GST_VIDEO_ENCODER (thiz));
if (!frame) {
GST_ERROR_OBJECT (thiz, "failed to get a frame");
return GST_FLOW_ERROR;
}
/* Wait for encoding operation to complete, the magic number 300000 below
* is used in MSDK samples
* #define MSDK_ENC_WAIT_INTERVAL 300000
*/
if (MFXVideoCORE_SyncOperation (gst_msdk_context_get_session (thiz->context),
task->sync_point, 300000) != MFX_ERR_NONE)
GST_WARNING_OBJECT (thiz, "failed to do sync operation");
if (!discard && task->output_bitstream.DataLength) {
GstBuffer *out_buf = NULL;
guint8 *data =
task->output_bitstream.Data + task->output_bitstream.DataOffset;
gsize size = task->output_bitstream.DataLength;
out_buf = gst_buffer_new_allocate (NULL, size, NULL);
gst_buffer_fill (out_buf, 0, data, size);
frame->output_buffer = out_buf;
frame->pts =
gst_util_uint64_scale (task->output_bitstream.TimeStamp, GST_SECOND,
90000);
frame->dts =
gst_util_uint64_scale (task->output_bitstream.DecodeTimeStamp,
GST_SECOND, 90000);
if ((task->output_bitstream.FrameType & MFX_FRAMETYPE_IDR) != 0 ||
(task->output_bitstream.FrameType & MFX_FRAMETYPE_xIDR) != 0) {
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
}
/* Mark task as available */
gst_msdkenc_reset_task (task);
}
gst_video_codec_frame_unref (frame);
gst_msdkenc_dequeue_frame (thiz, frame);
return gst_video_encoder_finish_frame (GST_VIDEO_ENCODER (thiz), frame);
}
static GstFlowReturn
gst_msdkenc_encode_frame (GstMsdkEnc * thiz, mfxFrameSurface1 * surface,
GstVideoCodecFrame * input_frame)
{
mfxSession session;
MsdkEncTask *task;
mfxStatus status;
if (G_UNLIKELY (thiz->context == NULL)) {
gst_msdkenc_dequeue_frame (thiz, input_frame);
gst_video_encoder_finish_frame (GST_VIDEO_ENCODER (thiz), input_frame);
return GST_FLOW_NOT_NEGOTIATED;
}
session = gst_msdk_context_get_session (thiz->context);
task = gst_msdkenc_get_free_task (thiz);
for (;;) {
/* Force key-frame if needed */
if (GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (input_frame))
thiz->enc_cntrl.FrameType =
MFX_FRAMETYPE_I | MFX_FRAMETYPE_IDR | MFX_FRAMETYPE_REF;
else
thiz->enc_cntrl.FrameType = MFX_FRAMETYPE_UNKNOWN;
status =
MFXVideoENCODE_EncodeFrameAsync (session, &thiz->enc_cntrl, surface,
&task->output_bitstream, &task->sync_point);
if (status != MFX_WRN_DEVICE_BUSY)
break;
/* If device is busy, wait 1ms and retry, as per MSDK's recomendation */
g_usleep (1000);
};
if (status != MFX_ERR_NONE && status != MFX_ERR_MORE_DATA) {
GST_ELEMENT_ERROR (thiz, STREAM, ENCODE, ("Encode frame failed."),
("MSDK encode error (%s)", msdk_status_to_string (status)));
gst_msdkenc_dequeue_frame (thiz, input_frame);
gst_video_encoder_finish_frame (GST_VIDEO_ENCODER (thiz), input_frame);
return GST_FLOW_ERROR;
}
if (task->sync_point) {
thiz->next_task = ((task - thiz->tasks) + 1) % thiz->num_tasks;
} else if (status == MFX_ERR_MORE_DATA) {
gst_msdkenc_dequeue_frame (thiz, input_frame);
}
/* Ensure that next task is available */
task = thiz->tasks + thiz->next_task;
return gst_msdkenc_finish_frame (thiz, task, FALSE);
}
static guint
gst_msdkenc_maximum_delayed_frames (GstMsdkEnc * thiz)
{
return thiz->num_tasks;
}
static void
gst_msdkenc_set_latency (GstMsdkEnc * thiz)
{
GstVideoInfo *info = &thiz->input_state->info;
gint max_delayed_frames;
GstClockTime latency;
max_delayed_frames = gst_msdkenc_maximum_delayed_frames (thiz);
if (info->fps_n) {
latency = gst_util_uint64_scale_ceil (GST_SECOND * info->fps_d,
max_delayed_frames, info->fps_n);
} else {
/* FIXME: Assume 25fps. This is better than reporting no latency at
* all and then later failing in live pipelines
*/
latency = gst_util_uint64_scale_ceil (GST_SECOND * 1,
max_delayed_frames, 25);
}
GST_INFO_OBJECT (thiz,
"Updating latency to %" GST_TIME_FORMAT " (%d frames)",
GST_TIME_ARGS (latency), max_delayed_frames);
gst_video_encoder_set_latency (GST_VIDEO_ENCODER (thiz), latency, latency);
}
static void
gst_msdkenc_flush_frames (GstMsdkEnc * thiz, gboolean discard)
{
mfxStatus status;
mfxSession session;
MsdkEncTask *task;
guint i, t;
if (!thiz->tasks)
return;
session = gst_msdk_context_get_session (thiz->context);
for (;;) {
task = thiz->tasks + thiz->next_task;
gst_msdkenc_finish_frame (thiz, task, FALSE);
status = MFXVideoENCODE_EncodeFrameAsync (session, NULL, NULL,
&task->output_bitstream, &task->sync_point);
if (status != MFX_ERR_NONE && status != MFX_ERR_MORE_DATA) {
GST_ELEMENT_ERROR (thiz, STREAM, ENCODE, ("Encode frame failed."),
("MSDK encode error (%s)", msdk_status_to_string (status)));
break;
}
if (task->sync_point) {
thiz->next_task = ((task - thiz->tasks) + 1) % thiz->num_tasks;
} else if (status == MFX_ERR_MORE_DATA) {
break;
}
};
t = thiz->next_task;
for (i = 0; i < thiz->num_tasks; i++) {
gst_msdkenc_finish_frame (thiz, &thiz->tasks[t], discard);
t = (t + 1) % thiz->num_tasks;
}
}
static gboolean
gst_msdkenc_set_src_caps (GstMsdkEnc * thiz)
{
GstMsdkEncClass *klass = GST_MSDKENC_GET_CLASS (thiz);
GstCaps *outcaps = NULL;
GstVideoCodecState *state;
GstTagList *tags;
if (klass->set_src_caps)
outcaps = klass->set_src_caps (thiz);
if (!outcaps)
return FALSE;
state = gst_video_encoder_set_output_state (GST_VIDEO_ENCODER (thiz),
outcaps, thiz->input_state);
GST_DEBUG_OBJECT (thiz, "output caps: %" GST_PTR_FORMAT, state->caps);
gst_video_codec_state_unref (state);
tags = gst_tag_list_new_empty ();
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_ENCODER, "msdkenc",
GST_TAG_MAXIMUM_BITRATE, thiz->bitrate * 1024,
GST_TAG_NOMINAL_BITRATE, thiz->bitrate * 1024, NULL);
gst_video_encoder_merge_tags (GST_VIDEO_ENCODER (thiz), tags,
GST_TAG_MERGE_REPLACE);
gst_tag_list_unref (tags);
return TRUE;
}
static GstBufferPool *
gst_msdkenc_create_buffer_pool (GstMsdkEnc * thiz, GstCaps * caps,
guint num_buffers, gboolean set_align)
{
GstBufferPool *pool = NULL;
GstStructure *config;
GstAllocator *allocator = NULL;
GstVideoInfo info;
GstVideoAlignment align;
GstAllocationParams params = { 0, 31, 0, 0, };
mfxFrameAllocResponse *alloc_resp = NULL;
if (thiz->has_vpp)
alloc_resp = set_align ? &thiz->vpp_alloc_resp : &thiz->alloc_resp;
else
alloc_resp = &thiz->alloc_resp;
pool = gst_msdk_buffer_pool_new (thiz->context, alloc_resp);
if (!pool)
goto error_no_pool;
if (!gst_video_info_from_caps (&info, caps)) {
GST_INFO_OBJECT (thiz, "failed to get video info");
return NULL;
}
gst_msdk_set_video_alignment (&info, &align);
gst_video_info_align (&info, &align);
if (thiz->use_dmabuf)
allocator =
gst_msdk_dmabuf_allocator_new (thiz->context, &info, alloc_resp);
else if (thiz->use_video_memory)
allocator = gst_msdk_video_allocator_new (thiz->context, &info, alloc_resp);
else
allocator = gst_msdk_system_allocator_new (&info);
if (!allocator)
goto error_no_allocator;
config = gst_buffer_pool_get_config (GST_BUFFER_POOL_CAST (pool));
gst_buffer_pool_config_set_params (config, caps, info.size, num_buffers, 0);
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);
if (thiz->use_video_memory) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_MSDK_USE_VIDEO_MEMORY);
if (thiz->use_dmabuf)
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_MSDK_USE_DMABUF);
}
gst_buffer_pool_config_set_video_alignment (config, &align);
gst_buffer_pool_config_set_allocator (config, allocator, &params);
gst_object_unref (allocator);
if (!gst_buffer_pool_set_config (pool, config))
goto error_pool_config;
if (set_align)
thiz->aligned_info = info;
return pool;
error_no_pool:
{
GST_INFO_OBJECT (thiz, "failed to create bufferpool");
return NULL;
}
error_no_allocator:
{
GST_INFO_OBJECT (thiz, "failed to create allocator");
gst_object_unref (pool);
return NULL;
}
error_pool_config:
{
GST_INFO_OBJECT (thiz, "failed to set config");
gst_object_unref (pool);
gst_object_unref (allocator);
return NULL;
}
}
/* Fixme: Common routine used by all msdk elements, should be
* moved to a common util file */
static gboolean
_gst_caps_has_feature (const GstCaps * caps, const gchar * feature)
{
guint i;
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstCapsFeatures *const features = gst_caps_get_features (caps, i);
/* Skip ANY features, we need an exact match for correct evaluation */
if (gst_caps_features_is_any (features))
continue;
if (gst_caps_features_contains (features, feature))
return TRUE;
}
return FALSE;
}
static gboolean
sinkpad_can_dmabuf (GstMsdkEnc * thiz)
{
gboolean ret = FALSE;
GstCaps *caps, *allowed_caps;
GstPad *sinkpad;
sinkpad = GST_VIDEO_ENCODER_SINK_PAD (thiz);
caps = gst_pad_get_pad_template_caps (sinkpad);
allowed_caps = gst_pad_peer_query_caps (sinkpad, caps);
if (!allowed_caps)
goto done;
if (gst_caps_is_any (allowed_caps) || gst_caps_is_empty (allowed_caps)
|| allowed_caps == caps)
goto done;
if (_gst_caps_has_feature (allowed_caps, GST_CAPS_FEATURE_MEMORY_DMABUF))
ret = TRUE;
done:
if (caps)
gst_caps_unref (caps);
if (allowed_caps)
gst_caps_unref (allowed_caps);
return ret;
}
static gboolean
gst_msdkenc_set_format (GstVideoEncoder * encoder, GstVideoCodecState * state)
{
GstMsdkEnc *thiz = GST_MSDKENC (encoder);
GstMsdkEncClass *klass = GST_MSDKENC_GET_CLASS (thiz);
if (state) {
if (thiz->input_state)
gst_video_codec_state_unref (thiz->input_state);
thiz->input_state = gst_video_codec_state_ref (state);
}
/* TODO: Currently d3d allocator is not implemented.
* So encoder uses system memory by default on Windows.
*/
#ifndef _WIN32
thiz->use_video_memory = TRUE;
#else
thiz->use_video_memory = FALSE;
#endif
GST_INFO_OBJECT (encoder, "This MSDK encoder uses %s memory",
thiz->use_video_memory ? "video" : "system");
if (klass->set_format) {
if (!klass->set_format (thiz))
return FALSE;
}
/* If upstream supports DMABufCapsfeatures, then we request for the dmabuf
* based pipeline usage. Ideally we should have dmabuf support even with
* raw-caps negotiation, but we don't have dmabuf-import support in msdk
* plugin yet */
if (sinkpad_can_dmabuf (thiz)) {
thiz->input_state->caps = gst_caps_make_writable (thiz->input_state->caps);
gst_caps_set_features (thiz->input_state->caps, 0,
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_DMABUF, NULL));
thiz->use_dmabuf = TRUE;
}
if (!gst_msdkenc_init_encoder (thiz))
return FALSE;
if (!gst_msdkenc_set_src_caps (thiz)) {
gst_msdkenc_close_encoder (thiz);
return FALSE;
}
if (!thiz->msdk_pool) {
guint num_buffers = gst_msdkenc_maximum_delayed_frames (thiz) + 1;
thiz->msdk_pool =
gst_msdkenc_create_buffer_pool (thiz, thiz->input_state->caps,
num_buffers, TRUE);
}
gst_msdkenc_set_latency (thiz);
/* Create another bufferpool if VPP requires */
if (thiz->has_vpp) {
GstVideoInfo *info = &thiz->input_state->info;
GstVideoInfo nv12_info;
GstCaps *caps;
GstBufferPool *pool = NULL;
gst_video_info_init (&nv12_info);
gst_video_info_set_format (&nv12_info, GST_VIDEO_FORMAT_NV12, info->width,
info->height);
caps = gst_video_info_to_caps (&nv12_info);
pool =
gst_msdkenc_create_buffer_pool (thiz, caps, thiz->num_surfaces, FALSE);
thiz->msdk_converted_pool = pool;
gst_caps_unref (caps);
}
return TRUE;
}
static MsdkSurface *
gst_msdkenc_get_surface_from_pool (GstMsdkEnc * thiz, GstBufferPool * pool,
GstBufferPoolAcquireParams * params)
{
GstBuffer *new_buffer;
mfxFrameSurface1 *new_surface;
MsdkSurface *msdk_surface;
if (!gst_buffer_pool_is_active (pool) &&
!gst_buffer_pool_set_active (pool, TRUE)) {
GST_ERROR_OBJECT (pool, "failed to activate buffer pool");
return NULL;
}
if (gst_buffer_pool_acquire_buffer (pool, &new_buffer, params) != GST_FLOW_OK) {
GST_ERROR_OBJECT (pool, "failed to acquire a buffer from pool");
return NULL;
}
if (gst_msdk_is_msdk_buffer (new_buffer))
new_surface = gst_msdk_get_surface_from_buffer (new_buffer);
else {
GST_ERROR_OBJECT (pool, "the acquired memory is not MSDK memory");
return NULL;
}
msdk_surface = gst_msdkenc_create_surface (new_surface, new_buffer);
return msdk_surface;
}
#ifndef _WIN32
static gboolean
import_dmabuf_to_msdk_surface (GstMsdkEnc * thiz, GstBuffer * buf,
MsdkSurface * msdk_surface)
{
GstMemory *mem = NULL;
GstVideoInfo vinfo;
GstVideoMeta *vmeta;
GstMsdkMemoryID *msdk_mid = NULL;
mfxFrameSurface1 *mfx_surface = NULL;
gint fd, i;
mem = gst_buffer_peek_memory (buf, 0);
fd = gst_dmabuf_memory_get_fd (mem);
if (fd < 0)
return FALSE;
vinfo = thiz->input_state->info;
/* Update offset/stride/size if there is VideoMeta attached to
* the buffer */
vmeta = gst_buffer_get_video_meta (buf);
if (vmeta) {
if (GST_VIDEO_INFO_FORMAT (&vinfo) != vmeta->format ||
GST_VIDEO_INFO_WIDTH (&vinfo) != vmeta->width ||
GST_VIDEO_INFO_HEIGHT (&vinfo) != vmeta->height ||
GST_VIDEO_INFO_N_PLANES (&vinfo) != vmeta->n_planes) {
GST_ERROR_OBJECT (thiz, "VideoMeta attached to buffer is not matching"
"the negotiated width/height/format");
return FALSE;
}
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&vinfo); ++i) {
GST_VIDEO_INFO_PLANE_OFFSET (&vinfo, i) = vmeta->offset[i];
GST_VIDEO_INFO_PLANE_STRIDE (&vinfo, i) = vmeta->stride[i];
}
GST_VIDEO_INFO_SIZE (&vinfo) = gst_buffer_get_size (buf);
}
/* Upstream neither accepted the msdk pool nor the msdk buffer size restrictions.
* Current media-driver and GMMLib will fail due to strict memory size restrictions.
* Ideally, media-driver should accept what ever memory coming from other drivers
* in case of dmabuf-import and this is how the intel-vaapi-driver works.
* For now, in order to avoid any crash we check the buffer size and fallback
* to copy frame method.
*
* See this: https://github.com/intel/media-driver/issues/169
* */
if (GST_VIDEO_INFO_SIZE (&vinfo) < GST_VIDEO_INFO_SIZE (&thiz->aligned_info))
return FALSE;
mfx_surface = msdk_surface->surface;
msdk_mid = (GstMsdkMemoryID *) mfx_surface->Data.MemId;
/* release the internal memory storage of associated mfxSurface */
gst_msdk_replace_mfx_memid (thiz->context, mfx_surface, VA_INVALID_ID);
/* export dmabuf to vasurface */
if (!gst_msdk_export_dmabuf_to_vasurface (thiz->context, &vinfo, fd,
msdk_mid->surface))
return FALSE;
return TRUE;
}
#endif
static MsdkSurface *
gst_msdkenc_get_surface_from_frame (GstMsdkEnc * thiz,
GstVideoCodecFrame * frame)
{
GstVideoFrame src_frame, out_frame;
MsdkSurface *msdk_surface;
GstBuffer *inbuf;
GstMemory *mem = NULL;
inbuf = frame->input_buffer;
if (gst_msdk_is_msdk_buffer (inbuf)) {
msdk_surface = g_slice_new0 (MsdkSurface);
msdk_surface->surface = gst_msdk_get_surface_from_buffer (inbuf);
return msdk_surface;
}
/* If upstream hasn't accpeted the proposed msdk bufferpool,
* just copy frame (if not dmabuf backed )to msdk buffer and take a surface from it.
*/
if (!(msdk_surface =
gst_msdkenc_get_surface_from_pool (thiz, thiz->msdk_pool, NULL)))
goto error;
#ifndef _WIN32
/************ dmabuf-import ************* */
/* if upstream provided a dmabuf backed memory, but not an msdk
* buffer, we could try to export the dmabuf to underlined vasurface */
mem = gst_buffer_peek_memory (inbuf, 0);
if (gst_is_dmabuf_memory (mem)) {
if (import_dmabuf_to_msdk_surface (thiz, inbuf, msdk_surface))
return msdk_surface;
else
GST_INFO_OBJECT (thiz, "Upstream dmabuf-backed memory is not imported"
"to the msdk surface, fall back to the copy input frame method");
}
#endif
if (!gst_video_frame_map (&src_frame, &thiz->input_state->info, inbuf,
GST_MAP_READ)) {
GST_ERROR_OBJECT (thiz, "failed to map the frame for source");
goto error;
}
if (!gst_video_frame_map (&out_frame, &thiz->aligned_info, msdk_surface->buf,
GST_MAP_WRITE)) {
GST_ERROR_OBJECT (thiz, "failed to map the frame for destination");
gst_video_frame_unmap (&src_frame);
goto error;
}
if (!gst_video_frame_copy (&out_frame, &src_frame)) {
GST_ERROR_OBJECT (thiz, "failed to copy frame");
gst_video_frame_unmap (&out_frame);
gst_video_frame_unmap (&src_frame);
goto error;
}
gst_video_frame_unmap (&out_frame);
gst_video_frame_unmap (&src_frame);
gst_buffer_replace (&frame->input_buffer, msdk_surface->buf);
gst_buffer_unref (msdk_surface->buf);
msdk_surface->buf = NULL;
return msdk_surface;
error:
if (msdk_surface) {
if (msdk_surface->buf)
gst_buffer_unref (msdk_surface->buf);
g_slice_free (MsdkSurface, msdk_surface);
}
return NULL;
}
static GstFlowReturn
gst_msdkenc_handle_frame (GstVideoEncoder * encoder, GstVideoCodecFrame * frame)
{
GstMsdkEnc *thiz = GST_MSDKENC (encoder);
GstVideoInfo *info = &thiz->input_state->info;
FrameData *fdata;
MsdkSurface *surface;
if (thiz->reconfig) {
gst_msdkenc_flush_frames (thiz, FALSE);
gst_msdkenc_set_format (encoder, NULL);
}
if (G_UNLIKELY (thiz->context == NULL))
goto not_inited;
if (thiz->has_vpp) {
MsdkSurface *vpp_surface;
GstVideoFrame vframe;
mfxSession session;
mfxSyncPoint vpp_sync_point = NULL;
mfxStatus status;
vpp_surface = gst_msdkenc_get_surface_from_frame (thiz, frame);
if (!vpp_surface)
goto invalid_surface;
surface =
gst_msdkenc_get_surface_from_pool (thiz, thiz->msdk_converted_pool,
NULL);
if (!surface)
goto invalid_surface;
if (!gst_video_frame_map (&vframe, info, frame->input_buffer, GST_MAP_READ))
goto invalid_frame;
if (frame->pts != GST_CLOCK_TIME_NONE) {
vpp_surface->surface->Data.TimeStamp =
gst_util_uint64_scale (frame->pts, 90000, GST_SECOND);
surface->surface->Data.TimeStamp =
gst_util_uint64_scale (frame->pts, 90000, GST_SECOND);
} else {
vpp_surface->surface->Data.TimeStamp = MFX_TIMESTAMP_UNKNOWN;
surface->surface->Data.TimeStamp = MFX_TIMESTAMP_UNKNOWN;
}
session = gst_msdk_context_get_session (thiz->context);
for (;;) {
status =
MFXVideoVPP_RunFrameVPPAsync (session, vpp_surface->surface,
surface->surface, NULL, &vpp_sync_point);
if (status != MFX_WRN_DEVICE_BUSY)
break;
/* If device is busy, wait 1ms and retry, as per MSDK's recomendation */
g_usleep (1000);
};
gst_video_frame_unmap (&vframe);
if (status != MFX_ERR_NONE && status != MFX_ERR_MORE_DATA) {
GST_ELEMENT_ERROR (thiz, STREAM, ENCODE, ("Converting frame failed."),
("MSDK VPP error (%s)", msdk_status_to_string (status)));
gst_video_encoder_finish_frame (GST_VIDEO_ENCODER (thiz), frame);
return GST_FLOW_ERROR;
}
fdata = g_slice_new0 (FrameData);
fdata->frame = gst_video_codec_frame_ref (frame);
fdata->frame_surface = vpp_surface;
fdata->converted_surface = surface;
thiz->pending_frames = g_list_prepend (thiz->pending_frames, fdata);
} else {
surface = gst_msdkenc_get_surface_from_frame (thiz, frame);
if (!surface)
goto invalid_surface;
fdata = gst_msdkenc_queue_frame (thiz, frame, info);
if (!fdata)
goto invalid_frame;
fdata->frame_surface = surface;
if (frame->pts != GST_CLOCK_TIME_NONE) {
surface->surface->Data.TimeStamp =
gst_util_uint64_scale (frame->pts, 90000, GST_SECOND);
} else {
surface->surface->Data.TimeStamp = MFX_TIMESTAMP_UNKNOWN;
}
}
return gst_msdkenc_encode_frame (thiz, surface->surface, frame);
/* ERRORS */
not_inited:
{
GST_WARNING_OBJECT (encoder, "Got buffer before set_caps was called");
return GST_FLOW_NOT_NEGOTIATED;
}
invalid_surface:
{
GST_ERROR_OBJECT (encoder, "Surface pool is full");
return GST_FLOW_ERROR;
}
invalid_frame:
{
GST_WARNING_OBJECT (encoder, "Failed to map frame");
return GST_FLOW_OK;
}
}
static gboolean
gst_msdkenc_start (GstVideoEncoder * encoder)
{
GstMsdkEnc *thiz = GST_MSDKENC (encoder);
if (gst_msdk_context_prepare (GST_ELEMENT_CAST (thiz), &thiz->context)) {
GST_INFO_OBJECT (thiz, "Found context %" GST_PTR_FORMAT " from neighbour",
thiz->context);
if (gst_msdk_context_get_job_type (thiz->context) & GST_MSDK_JOB_ENCODER) {
GstMsdkContext *parent_context, *msdk_context;
parent_context = thiz->context;
msdk_context = gst_msdk_context_new_with_parent (parent_context);
if (!msdk_context) {
GST_ERROR_OBJECT (thiz, "Context creation failed");
return FALSE;
}
thiz->context = msdk_context;
gst_object_unref (parent_context);
GST_INFO_OBJECT (thiz,
"Creating new context %" GST_PTR_FORMAT " with joined session",
thiz->context);
} else {
gst_msdk_context_add_job_type (thiz->context, GST_MSDK_JOB_ENCODER);
}
} else {
gst_msdk_context_ensure_context (GST_ELEMENT_CAST (thiz), thiz->hardware,
GST_MSDK_JOB_ENCODER);
GST_INFO_OBJECT (thiz, "Creating new context %" GST_PTR_FORMAT,
thiz->context);
}
gst_msdk_context_add_shared_async_depth (thiz->context, thiz->async_depth);
/* Set the minimum pts to some huge value (1000 hours). This keeps
the dts at the start of the stream from needing to be
negative. */
gst_video_encoder_set_min_pts (encoder, GST_SECOND * 60 * 60 * 1000);
return TRUE;
}
static gboolean
gst_msdkenc_stop (GstVideoEncoder * encoder)
{
GstMsdkEnc *thiz = GST_MSDKENC (encoder);
gst_msdkenc_flush_frames (thiz, TRUE);
gst_msdkenc_close_encoder (thiz);
gst_msdkenc_dequeue_all_frames (thiz);
if (thiz->input_state)
gst_video_codec_state_unref (thiz->input_state);
thiz->input_state = NULL;
gst_object_replace ((GstObject **) & thiz->context, NULL);
return TRUE;
}
static gboolean
gst_msdkenc_flush (GstVideoEncoder * encoder)
{
GstMsdkEnc *thiz = GST_MSDKENC (encoder);
gst_msdkenc_flush_frames (thiz, TRUE);
gst_msdkenc_close_encoder (thiz);
gst_msdkenc_dequeue_all_frames (thiz);
gst_msdkenc_init_encoder (thiz);
return TRUE;
}
static GstFlowReturn
gst_msdkenc_finish (GstVideoEncoder * encoder)
{
GstMsdkEnc *thiz = GST_MSDKENC (encoder);
gst_msdkenc_flush_frames (thiz, FALSE);
return GST_FLOW_OK;
}
static gboolean
gst_msdkenc_propose_allocation (GstVideoEncoder * encoder, GstQuery * query)
{
GstMsdkEnc *thiz = GST_MSDKENC (encoder);
GstVideoInfo info;
GstBufferPool *pool = NULL;
GstAllocator *allocator = NULL;
GstCaps *caps;
guint num_buffers;
if (!thiz->input_state)
return FALSE;
gst_query_parse_allocation (query, &caps, NULL);
if (!caps) {
GST_INFO_OBJECT (encoder, "failed to get caps");
return FALSE;
}
if (!gst_video_info_from_caps (&info, caps)) {
GST_INFO_OBJECT (encoder, "failed to get video info");
return FALSE;
}
/* if upstream allocation query supports dmabuf-capsfeatures,
* we do allocate dmabuf backed memory */
if (_gst_caps_has_feature (caps, GST_CAPS_FEATURE_MEMORY_DMABUF)) {
GST_INFO_OBJECT (thiz, "MSDK VPP srcpad uses DMABuf memory");
thiz->use_dmabuf = TRUE;
}
num_buffers = gst_msdkenc_maximum_delayed_frames (thiz) + 1;
pool = gst_msdkenc_create_buffer_pool (thiz, caps, num_buffers, TRUE);
gst_query_add_allocation_pool (query, pool, GST_VIDEO_INFO_SIZE (&info),
num_buffers, 0);
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
if (pool) {
GstStructure *config;
GstAllocationParams params = { 0, 31, 0, 0, };
config = gst_buffer_pool_get_config (GST_BUFFER_POOL_CAST (pool));
if (gst_buffer_pool_config_get_allocator (config, &allocator, NULL))
gst_query_add_allocation_param (query, allocator, &params);
gst_structure_free (config);
}
gst_object_unref (pool);
return GST_VIDEO_ENCODER_CLASS (parent_class)->propose_allocation (encoder,
query);
}
static void
gst_msdkenc_finalize (GObject * object)
{
GstMsdkEnc *thiz = GST_MSDKENC (object);
if (thiz->input_state)
gst_video_codec_state_unref (thiz->input_state);
thiz->input_state = NULL;
gst_object_replace ((GstObject **) & thiz->msdk_pool, NULL);
gst_object_replace ((GstObject **) & thiz->msdk_converted_pool, NULL);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_msdkenc_class_init (GstMsdkEncClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstVideoEncoderClass *gstencoder_class;
gobject_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
gstencoder_class = GST_VIDEO_ENCODER_CLASS (klass);
gobject_class->finalize = gst_msdkenc_finalize;
element_class->set_context = gst_msdkenc_set_context;
gstencoder_class->set_format = GST_DEBUG_FUNCPTR (gst_msdkenc_set_format);
gstencoder_class->handle_frame = GST_DEBUG_FUNCPTR (gst_msdkenc_handle_frame);
gstencoder_class->start = GST_DEBUG_FUNCPTR (gst_msdkenc_start);
gstencoder_class->stop = GST_DEBUG_FUNCPTR (gst_msdkenc_stop);
gstencoder_class->flush = GST_DEBUG_FUNCPTR (gst_msdkenc_flush);
gstencoder_class->finish = GST_DEBUG_FUNCPTR (gst_msdkenc_finish);
gstencoder_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_msdkenc_propose_allocation);
gst_element_class_add_static_pad_template (element_class, &sink_factory);
}
static void
gst_msdkenc_init (GstMsdkEnc * thiz)
{
thiz->hardware = PROP_HARDWARE_DEFAULT;
thiz->async_depth = PROP_ASYNC_DEPTH_DEFAULT;
thiz->target_usage = PROP_TARGET_USAGE_DEFAULT;
thiz->rate_control = PROP_RATE_CONTROL_DEFAULT;
thiz->bitrate = PROP_BITRATE_DEFAULT;
thiz->max_frame_size = PROP_MAX_FRAME_SIZE_DEFAULT;
thiz->max_vbv_bitrate = PROP_MAX_VBV_BITRATE_DEFAULT;
thiz->accuracy = PROP_AVBR_ACCURACY_DEFAULT;
thiz->convergence = PROP_AVBR_ACCURACY_DEFAULT;
thiz->lookahead_depth = PROP_RC_LOOKAHEAD_DEPTH_DEFAULT;
thiz->qpi = PROP_QPI_DEFAULT;
thiz->qpp = PROP_QPP_DEFAULT;
thiz->qpb = PROP_QPB_DEFAULT;
thiz->gop_size = PROP_GOP_SIZE_DEFAULT;
thiz->ref_frames = PROP_REF_FRAMES_DEFAULT;
thiz->i_frames = PROP_I_FRAMES_DEFAULT;
thiz->b_frames = PROP_B_FRAMES_DEFAULT;
thiz->num_slices = PROP_NUM_SLICES_DEFAULT;
thiz->mbbrc = PROP_MBBRC_DEFAULT;
thiz->adaptive_i = PROP_ADAPTIVE_I_DEFAULT;
thiz->adaptive_b = PROP_ADAPTIVE_B_DEFAULT;
}
/* gst_msdkenc_set_common_property:
*
* This is a helper function to set the common property
* of base encoder from subclass implementation.
*/
gboolean
gst_msdkenc_set_common_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstMsdkEnc *thiz = GST_MSDKENC (object);
GstState state;
gboolean ret = TRUE;
GST_OBJECT_LOCK (thiz);
state = GST_STATE (thiz);
if ((state != GST_STATE_READY && state != GST_STATE_NULL) &&
!(pspec->flags & GST_PARAM_MUTABLE_PLAYING)) {
ret = FALSE;
goto wrong_state;
}
switch (prop_id) {
case GST_MSDKENC_PROP_HARDWARE:
thiz->hardware = g_value_get_boolean (value);
break;
case GST_MSDKENC_PROP_ASYNC_DEPTH:
thiz->async_depth = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_TARGET_USAGE:
thiz->target_usage = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_RATE_CONTROL:
thiz->rate_control = g_value_get_enum (value);
break;
case GST_MSDKENC_PROP_BITRATE:
thiz->bitrate = g_value_get_uint (value);
thiz->reconfig = TRUE;
break;
case GST_MSDKENC_PROP_MAX_FRAME_SIZE:
thiz->max_frame_size = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_MAX_VBV_BITRATE:
thiz->max_vbv_bitrate = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_AVBR_ACCURACY:
thiz->accuracy = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_AVBR_CONVERGENCE:
thiz->convergence = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_RC_LOOKAHEAD_DEPTH:
thiz->lookahead_depth = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_QPI:
thiz->qpi = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_QPP:
thiz->qpp = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_QPB:
thiz->qpb = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_GOP_SIZE:
thiz->gop_size = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_REF_FRAMES:
thiz->ref_frames = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_I_FRAMES:
thiz->i_frames = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_B_FRAMES:
thiz->b_frames = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_NUM_SLICES:
thiz->num_slices = g_value_get_uint (value);
break;
case GST_MSDKENC_PROP_MBBRC:
thiz->mbbrc = g_value_get_enum (value);
break;
case GST_MSDKENC_PROP_ADAPTIVE_I:
thiz->adaptive_i = g_value_get_enum (value);
break;
case GST_MSDKENC_PROP_ADAPTIVE_B:
thiz->adaptive_b = g_value_get_enum (value);
break;
default:
ret = FALSE;
break;
}
GST_OBJECT_UNLOCK (thiz);
return ret;
/* ERROR */
wrong_state:
{
GST_WARNING_OBJECT (thiz, "setting property in wrong state");
GST_OBJECT_UNLOCK (thiz);
return ret;
}
}
/* gst_msdkenc_get_common_property:
*
* This is a helper function to get the common property
* of base encoder from subclass implementation.
*/
gboolean
gst_msdkenc_get_common_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstMsdkEnc *thiz = GST_MSDKENC (object);
gboolean ret = TRUE;
GST_OBJECT_LOCK (thiz);
switch (prop_id) {
case GST_MSDKENC_PROP_HARDWARE:
g_value_set_boolean (value, thiz->hardware);
break;
case GST_MSDKENC_PROP_ASYNC_DEPTH:
g_value_set_uint (value, thiz->async_depth);
break;
case GST_MSDKENC_PROP_TARGET_USAGE:
g_value_set_uint (value, thiz->target_usage);
break;
case GST_MSDKENC_PROP_RATE_CONTROL:
g_value_set_enum (value, thiz->rate_control);
break;
case GST_MSDKENC_PROP_BITRATE:
g_value_set_uint (value, thiz->bitrate);
break;
case GST_MSDKENC_PROP_MAX_FRAME_SIZE:
g_value_set_uint (value, thiz->max_frame_size);
break;
case GST_MSDKENC_PROP_MAX_VBV_BITRATE:
g_value_set_uint (value, thiz->max_vbv_bitrate);
break;
case GST_MSDKENC_PROP_AVBR_ACCURACY:
g_value_set_uint (value, thiz->accuracy);
break;
case GST_MSDKENC_PROP_AVBR_CONVERGENCE:
g_value_set_uint (value, thiz->convergence);
break;
case GST_MSDKENC_PROP_RC_LOOKAHEAD_DEPTH:
g_value_set_uint (value, thiz->lookahead_depth);
break;
case GST_MSDKENC_PROP_QPI:
g_value_set_uint (value, thiz->qpi);
break;
case GST_MSDKENC_PROP_QPP:
g_value_set_uint (value, thiz->qpp);
break;
case GST_MSDKENC_PROP_QPB:
g_value_set_uint (value, thiz->qpb);
break;
case GST_MSDKENC_PROP_GOP_SIZE:
g_value_set_uint (value, thiz->gop_size);
break;
case GST_MSDKENC_PROP_REF_FRAMES:
g_value_set_uint (value, thiz->ref_frames);
break;
case GST_MSDKENC_PROP_I_FRAMES:
g_value_set_uint (value, thiz->i_frames);
break;
case GST_MSDKENC_PROP_B_FRAMES:
g_value_set_uint (value, thiz->b_frames);
break;
case GST_MSDKENC_PROP_NUM_SLICES:
g_value_set_uint (value, thiz->num_slices);
break;
case GST_MSDKENC_PROP_MBBRC:
g_value_set_enum (value, thiz->mbbrc);
break;
case GST_MSDKENC_PROP_ADAPTIVE_I:
g_value_set_enum (value, thiz->adaptive_i);
break;
case GST_MSDKENC_PROP_ADAPTIVE_B:
g_value_set_enum (value, thiz->adaptive_b);
break;
default:
ret = FALSE;
break;
}
GST_OBJECT_UNLOCK (thiz);
return ret;
}
/* gst_msdkenc_install_common_properties:
* @thiz: a #GstMsdkEnc
*
* This is a helper function to install common properties
* of base encoder from subclass implementation.
* Encoders like jpeg do't require all the common properties
* and they can avoid installing it into base gobject.
*/
void
gst_msdkenc_install_common_properties (GstMsdkEncClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GParamSpec *obj_properties[GST_MSDKENC_PROP_MAX] = { NULL, };
obj_properties[GST_MSDKENC_PROP_HARDWARE] =
g_param_spec_boolean ("hardware", "Hardware", "Enable hardware encoders",
PROP_HARDWARE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_ASYNC_DEPTH] =
g_param_spec_uint ("async-depth", "Async Depth",
"Depth of asynchronous pipeline",
1, 20, PROP_ASYNC_DEPTH_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_TARGET_USAGE] =
g_param_spec_uint ("target-usage", "Target Usage",
"1: Best quality, 4: Balanced, 7: Best speed",
1, 7, PROP_TARGET_USAGE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_RATE_CONTROL] =
g_param_spec_enum ("rate-control", "Rate Control",
"Rate control method", gst_msdkenc_rate_control_get_type (),
PROP_RATE_CONTROL_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_BITRATE] =
g_param_spec_uint ("bitrate", "Bitrate", "Bitrate in kbit/sec", 1,
2000 * 1024, PROP_BITRATE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_MUTABLE_PLAYING);
obj_properties[GST_MSDKENC_PROP_MAX_FRAME_SIZE] =
g_param_spec_uint ("max-frame-size", "Max Frame Size",
"Maximum possible size (in kb) of any compressed frames (0: auto-calculate)",
0, G_MAXUINT16, PROP_MAX_FRAME_SIZE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/* Set the same upper bound with bitrate */
obj_properties[GST_MSDKENC_PROP_MAX_VBV_BITRATE] =
g_param_spec_uint ("max-vbv-bitrate", "Max VBV Bitrate",
"Maximum bitrate(kbit/sec) at which data enters Video Buffering Verifier (0: auto-calculate)",
0, 2000 * 1024, PROP_MAX_VBV_BITRATE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_AVBR_ACCURACY] =
g_param_spec_uint ("accuracy", "Accuracy", "The AVBR Accuracy in "
"the unit of tenth of percent", 0, G_MAXUINT16,
PROP_AVBR_ACCURACY_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_AVBR_CONVERGENCE] =
g_param_spec_uint ("convergence", "Convergence",
"The AVBR Convergence in the unit of 100 frames", 0, G_MAXUINT16,
PROP_AVBR_CONVERGENCE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_RC_LOOKAHEAD_DEPTH] =
g_param_spec_uint ("rc-lookahead", "Look-ahead depth",
"Number of frames to look ahead for Rate control", 10, 100,
PROP_RC_LOOKAHEAD_DEPTH_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_QPI] =
g_param_spec_uint ("qpi", "QPI",
"Constant quantizer for I frames (0 unlimited). Also used as "
"ICQQuality or QVBRQuality for different RateControl methods",
0, 51, PROP_QPI_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_QPP] =
g_param_spec_uint ("qpp", "QPP",
"Constant quantizer for P frames (0 unlimited)",
0, 51, PROP_QPP_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_QPB] =
g_param_spec_uint ("qpb", "QPB",
"Constant quantizer for B frames (0 unlimited)",
0, 51, PROP_QPB_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_GOP_SIZE] =
g_param_spec_uint ("gop-size", "GOP Size", "GOP Size", 0,
G_MAXINT, PROP_GOP_SIZE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_REF_FRAMES] =
g_param_spec_uint ("ref-frames", "Reference Frames",
"Number of reference frames",
0, G_MAXINT, PROP_REF_FRAMES_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_I_FRAMES] =
g_param_spec_uint ("i-frames", "I Frames",
"Number of I frames between IDR frames",
0, G_MAXINT, PROP_I_FRAMES_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_B_FRAMES] =
g_param_spec_uint ("b-frames", "B Frames",
"Number of B frames between I and P frames",
0, G_MAXINT, PROP_B_FRAMES_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_NUM_SLICES] =
g_param_spec_uint ("num-slices", "Number of Slices",
"Number of slices per frame, Zero tells the encoder to "
"choose any slice partitioning allowed by the codec standard",
0, G_MAXINT, PROP_NUM_SLICES_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_MBBRC] =
g_param_spec_enum ("mbbrc", "MB level bitrate control",
"Macroblock level bitrate control",
gst_msdkenc_mbbrc_get_type (),
PROP_MBBRC_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_ADAPTIVE_I] =
g_param_spec_enum ("i-adapt", "Adaptive I-Frame Insertion",
"Adaptive I-Frame Insertion control",
gst_msdkenc_adaptive_i_get_type (),
PROP_ADAPTIVE_I_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
obj_properties[GST_MSDKENC_PROP_ADAPTIVE_B] =
g_param_spec_enum ("b-adapt", "Adaptive B-Frame Insertion",
"Adaptive B-Frame Insertion control",
gst_msdkenc_adaptive_b_get_type (),
PROP_ADAPTIVE_B_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (gobject_class,
GST_MSDKENC_PROP_MAX, obj_properties);
}
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