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/*
* Copyright (C) 2014-2016 Intel Corporation. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "vaapiencoder_vp8.h"
#include "common/scopedlogger.h"
#include "common/common_def.h"
#include "vaapi/vaapicontext.h"
#include "vaapi/vaapidisplay.h"
#include "vaapicodedbuffer.h"
#include "vaapiencpicture.h"
#include <algorithm>
#include <vector>
namespace YamiMediaCodec{
//golden, alter, last
#define MAX_REFERECNE_FRAME 3
#define VP8_DEFAULT_QP 40
class VaapiEncPictureVP8 : public VaapiEncPicture
{
public:
VaapiEncPictureVP8(const ContextPtr& context, const SurfacePtr& surface,
int64_t timeStamp)
: VaapiEncPicture(context, surface, timeStamp)
{
return;
}
VAGenericID getCodedBufferID()
{
return m_codedBuffer->getID();
}
};
struct RefFlags
{
/* exactly same things in VAEncPictureParameterBufferVP8 */
uint32_t refresh_golden_frame : 1;
uint32_t refresh_alternate_frame : 1;
uint32_t refresh_last : 1;
uint32_t copy_buffer_to_golden : 2;
uint32_t copy_buffer_to_alternate : 2;
uint32_t no_ref_last : 1;
uint32_t no_ref_gf : 1;
uint32_t no_ref_arf : 1;
RefFlags()
{
memset(this, 0, sizeof(RefFlags));
}
};
class Vp8Encoder {
public:
virtual void getRefFlags(RefFlags&, uint8_t temporalLayer) = 0;
virtual void getLayerIds(LayerIDs& ids) const = 0;
virtual bool getErrorResilient() const = 0;
virtual bool getRefreshEntropyProbs() const = 0;
virtual uint8_t getTemporalLayer(uint32_t frameNum) const = 0;
virtual uint8_t getLayerNum() const = 0;
virtual void getLayerFrameRates(LayerFrameRates& frameRates) const = 0;
virtual void resetRefNum() = 0;
virtual ~Vp8Encoder() {}
};
class Vp8EncoderNormal : public Vp8Encoder {
public:
void getRefFlags(RefFlags&, uint8_t temporalLayer);
void getLayerIds(LayerIDs& ids) const { ASSERT(0 && "not suppose call this"); }
bool getErrorResilient() const { return false; }
bool getRefreshEntropyProbs() const { return false; }
uint8_t getTemporalLayer(uint32_t frameNum) const { return 0; }
uint8_t getLayerNum() const { return 1; }
void getLayerFrameRates(LayerFrameRates& frameRates) const { return; }
void resetRefNum() { return; }
};
void Vp8EncoderNormal::getRefFlags(RefFlags& refFlags, uint8_t temporalLayer)
{
refFlags.refresh_last = 1;
refFlags.refresh_golden_frame = 0;
refFlags.copy_buffer_to_golden = 1;
refFlags.refresh_alternate_frame = 0;
refFlags.copy_buffer_to_alternate = 2;
}
class Vp8EncoderSvct : public Vp8Encoder {
public:
Vp8EncoderSvct(const VideoFrameRate& frameRate, const VideoTemporalLayerIDs& layerIDs, uint8_t layerIndex)
: m_layerIndex(layerIndex % VP8_MAX_TEMPORAL_LAYER_NUM)
, m_goldenRefreshed(false)
{
m_layerIDs.reset(new Vp8LayerID(frameRate, layerIDs, m_layerIndex));
}
void getRefFlags(RefFlags&, uint8_t temporalLayer);
void getLayerIds(LayerIDs& ids) const;
void getLayerFrameRates(LayerFrameRates& frameRates) const { return m_layerIDs->getLayerFrameRates(frameRates); }
bool getErrorResilient() const { return true; }
bool getRefreshEntropyProbs() const { return false; }
uint8_t getTemporalLayer(uint32_t frameNum) const;
uint8_t getLayerNum() const { return m_layerIDs->getLayerNum(); }
void resetRefNum();
private:
uint8_t m_layerIndex;
bool m_goldenRefreshed;
TemporalLayerIDPtr m_layerIDs;
};
void Vp8EncoderSvct::resetRefNum()
{
m_goldenRefreshed = false;
}
uint8_t Vp8EncoderSvct::getTemporalLayer(uint32_t frameNum) const
{
return m_layerIDs->getTemporalLayer(frameNum);
}
void Vp8EncoderSvct::getLayerIds(LayerIDs& ids) const
{
m_layerIDs->getLayerIds(ids);
}
void Vp8EncoderSvct::getRefFlags(RefFlags& refFlags, uint8_t temporalLayer)
{
refFlags.no_ref_arf = 1;
switch (temporalLayer) {
case 2:
if (!m_goldenRefreshed)
refFlags.no_ref_gf = 1;
refFlags.refresh_alternate_frame = 1;
//allow to drop the third layer's frames on terrible network condition,
//so the third layer's frames don't reference to each other.
break;
case 1:
if (!m_goldenRefreshed)
refFlags.no_ref_gf = 1;
refFlags.refresh_golden_frame = 1;
m_goldenRefreshed = true;
break;
case 0:
refFlags.refresh_last = 1;
refFlags.no_ref_gf = 1;
break;
default:
ERROR("temporal layer %d is out of the range[0, 2].", temporalLayer);
break;
}
}
VaapiEncoderVP8::VaapiEncoderVP8():
m_frameCount(0),
m_qIndex(VP8_DEFAULT_QP)
{
m_videoParamCommon.profile = VAProfileVP8Version0_3;
m_videoParamCommon.rcParams.minQP = 9;
m_videoParamCommon.rcParams.maxQP = 127;
m_videoParamCommon.rcParams.initQP = VP8_DEFAULT_QP;
}
VaapiEncoderVP8::~VaapiEncoderVP8()
{
}
YamiStatus VaapiEncoderVP8::getMaxOutSize(uint32_t* maxSize)
{
FUNC_ENTER();
*maxSize = m_maxCodedbufSize;
return YAMI_SUCCESS;
}
//if the context is very complex and the quantization value is very small,
//the coded slice data will be very close to the limitation value width() * height() * 3 / 2.
//And the coded bitstream (slice_data + frame headers) will more than width() * height() * 3 / 2.
//so we add VP8_HEADER_MAX_SIZE to m_maxCodedbufSize to make sure it's not overflow.
#define VP8_HEADER_MAX_SIZE 0x4000
void VaapiEncoderVP8::resetParams()
{
m_maxCodedbufSize = width() * height() * 3 / 2 + VP8_HEADER_MAX_SIZE;
if (ipPeriod() == 0)
m_videoParamCommon.intraPeriod = 1;
VideoFrameRate frameRate;
frameRate.frameRateDenom = frameRateDenom();
frameRate.frameRateNum = frameRateNum();
uint8_t layerIndex = m_videoParamCommon.temporalLayers.numLayersMinus1;
if (layerIndex > 0) {
#ifndef __ENABLE_VP8_SVCT__
assert(0 && "Please enable --enable-vp8svct during compilation!");
#endif
m_encoder.reset(new Vp8EncoderSvct(frameRate, m_videoParamCommon.temporalLayerIDs, layerIndex));
m_encoder->getLayerFrameRates(m_svctFrameRate);
assert((layerIndex + 1) == m_encoder->getLayerNum());
}
else {
m_encoder.reset(new Vp8EncoderNormal());
}
}
YamiStatus VaapiEncoderVP8::start()
{
FUNC_ENTER();
resetParams();
return VaapiEncoderBase::start();
}
void VaapiEncoderVP8::flush()
{
FUNC_ENTER();
m_frameCount = 0;
m_last.reset();
m_golden.reset();
m_alt.reset();
VaapiEncoderBase::flush();
}
YamiStatus VaapiEncoderVP8::stop()
{
flush();
return VaapiEncoderBase::stop();
}
YamiStatus VaapiEncoderVP8::setParameters(VideoParamConfigType type, Yami_PTR videoEncParams)
{
YamiStatus status = YAMI_SUCCESS;
FUNC_ENTER();
if (!videoEncParams)
return YAMI_INVALID_PARAM;
switch (type) {
default:
status = VaapiEncoderBase::setParameters(type, videoEncParams);
break;
}
return status;
}
YamiStatus VaapiEncoderVP8::getParameters(VideoParamConfigType type, Yami_PTR videoEncParams)
{
FUNC_ENTER();
if (!videoEncParams)
return YAMI_INVALID_PARAM;
// TODO, update video resolution basing on hw requirement
return VaapiEncoderBase::getParameters(type, videoEncParams);
}
YamiStatus VaapiEncoderVP8::doEncode(const SurfacePtr& surface, uint64_t timeStamp, bool forceKeyFrame)
{
YamiStatus ret;
if (!surface)
return YAMI_INVALID_PARAM;
PicturePtr picture(new VaapiEncPictureVP8(m_context, surface, timeStamp));
if (!(m_frameCount % keyFramePeriod()) || forceKeyFrame)
picture->m_type = VAAPI_PICTURE_I;
else
picture->m_type = VAAPI_PICTURE_P;
picture->m_temporalID = m_encoder->getTemporalLayer(m_frameCount % keyFramePeriod());
m_frameCount++;
m_qIndex = (initQP() > minQP() && initQP() < maxQP()) ? initQP() : VP8_DEFAULT_QP;
CodedBufferPtr codedBuffer = VaapiCodedBuffer::create(m_context, m_maxCodedbufSize);
if (!codedBuffer)
return YAMI_OUT_MEMORY;
picture->m_codedBuffer = codedBuffer;
codedBuffer->setFlag(ENCODE_BUFFERFLAG_ENDOFFRAME);
INFO("picture->m_type: 0x%x\n", picture->m_type);
if (picture->m_type == VAAPI_PICTURE_I) {
codedBuffer->setFlag(ENCODE_BUFFERFLAG_SYNCFRAME);
}
ret = encodePicture(picture);
if (ret != YAMI_SUCCESS) {
return ret;
}
output(picture);
return YAMI_SUCCESS;
}
bool VaapiEncoderVP8::fill(VAEncSequenceParameterBufferVP8* seqParam) const
{
seqParam->frame_width = width();
seqParam->frame_height = height();
seqParam->bits_per_second = bitRate();
seqParam->intra_period = intraPeriod();
seqParam->error_resilient = m_encoder->getErrorResilient();
return true;
}
void VaapiEncoderVP8::fill(VAEncPictureParameterBufferVP8* picParam, const RefFlags& refFlags) const
{
picParam->pic_flags.bits.refresh_golden_frame = refFlags.refresh_golden_frame;
picParam->pic_flags.bits.refresh_alternate_frame = refFlags.refresh_alternate_frame;
picParam->pic_flags.bits.refresh_last = refFlags.refresh_last;
picParam->pic_flags.bits.copy_buffer_to_golden = refFlags.copy_buffer_to_golden;
picParam->pic_flags.bits.copy_buffer_to_alternate = refFlags.copy_buffer_to_alternate;
#ifdef __ENABLE_VP8_SVCT__
picParam->ref_flags.bits.no_ref_last = refFlags.no_ref_last;
picParam->ref_flags.bits.no_ref_gf = refFlags.no_ref_gf;
picParam->ref_flags.bits.no_ref_arf = refFlags.no_ref_arf;
if (!picParam->ref_flags.bits.no_ref_last)
picParam->ref_flags.bits.first_ref = 0x01;
if (!picParam->ref_flags.bits.no_ref_gf)
picParam->ref_flags.bits.second_ref = 0x02;
#endif
}
/* Fills in VA picture parameter buffer */
bool VaapiEncoderVP8::fill(VAEncPictureParameterBufferVP8* picParam, const PicturePtr& picture,
const SurfacePtr& surface, RefFlags& refFlags) const
{
picParam->reconstructed_frame = surface->getID();
picParam->ref_last_frame = VA_INVALID_SURFACE;
picParam->ref_gf_frame = VA_INVALID_SURFACE;
picParam->ref_arf_frame = VA_INVALID_SURFACE;
if (picture->m_type == VAAPI_PICTURE_P) {
picParam->pic_flags.bits.frame_type = 1;
m_encoder->getRefFlags(refFlags, picture->m_temporalID);
if (!refFlags.no_ref_arf)
picParam->ref_arf_frame = m_alt->getID();
if (!refFlags.no_ref_gf)
picParam->ref_gf_frame = m_golden->getID();
if (!refFlags.no_ref_last)
picParam->ref_last_frame = m_last->getID();
fill(picParam, refFlags);
}
else {
m_encoder->resetRefNum();
}
picParam->coded_buf = picture->getCodedBufferID();
#ifdef __ENABLE_VP8_SVCT__
picParam->ref_flags.bits.temporal_id = picture->m_temporalID;
#endif
picParam->pic_flags.bits.show_frame = 1;
/*TODO: multi partition*/
picParam->pic_flags.bits.num_token_partitions = 0;
//REMOVE THIS
picParam->pic_flags.bits.refresh_entropy_probs = 0;
/*pic_flags end */
for (int i = 0; i < 4; i++) {
picParam->loop_filter_level[i] = 19;
}
picParam->clamp_qindex_low = minQP();
picParam->clamp_qindex_high = maxQP();
return TRUE;
}
bool VaapiEncoderVP8::fill(VAQMatrixBufferVP8* qMatrix) const
{
size_t i;
for (i = 0; i < N_ELEMENTS(qMatrix->quantization_index); i++) {
qMatrix->quantization_index[i] = m_qIndex;
}
for (i = 0; i < N_ELEMENTS(qMatrix->quantization_index_delta); i++) {
qMatrix->quantization_index_delta[i] = 0;
}
return true;
}
bool VaapiEncoderVP8::ensureSequence(const PicturePtr& picture)
{
if (picture->m_type != VAAPI_PICTURE_I)
return true;
VAEncSequenceParameterBufferVP8* seqParam;
if (!picture->editSequence(seqParam) || !fill(seqParam)) {
ERROR("failed to create sequence parameter buffer (SPS)");
return false;
}
return true;
}
bool VaapiEncoderVP8::ensurePicture (const PicturePtr& picture,
const SurfacePtr& surface,
RefFlags& refFlags)
{
VAEncPictureParameterBufferVP8 *picParam;
if (!picture->editPicture(picParam) || !fill(picParam, picture, surface, refFlags)) {
ERROR("failed to create picture parameter buffer (PPS)");
return false;
}
return true;
}
bool VaapiEncoderVP8::ensureQMatrix (const PicturePtr& picture)
{
VAQMatrixBufferVP8 *qMatrix;
if (!picture->editQMatrix(qMatrix) || !fill(qMatrix)) {
ERROR("failed to create qMatrix");
return false;
}
return true;
}
/* Section 9.7 */
const SurfacePtr& VaapiEncoderVP8::referenceUpdate(
const SurfacePtr& to, const SurfacePtr& from,
const SurfacePtr& recon, bool refresh, uint32_t copy) const
{
if (refresh)
return recon;
switch (copy) {
case 0:
return to;
case 1:
return m_last;
case 2:
return from;
default:
ASSERT(0 && "invalid copy to flags");
return to;
}
}
bool VaapiEncoderVP8::referenceListUpdate (const PicturePtr& pic, const SurfacePtr& recon, const RefFlags& refFlags)
{
if (VAAPI_PICTURE_I == pic->m_type) {
m_last = recon;
m_golden = recon;
m_alt = recon;
}
else {
/* 9.7 and 9.8 */
m_golden = referenceUpdate(m_golden, m_alt, recon,
refFlags.refresh_golden_frame, refFlags.copy_buffer_to_golden);
m_alt = referenceUpdate(m_alt, m_golden, recon,
refFlags.refresh_alternate_frame, refFlags.copy_buffer_to_alternate);
if (refFlags.refresh_last)
m_last = recon;
}
return true;
}
/* Generates additional control parameters */
bool VaapiEncoderVP8::ensureMiscParams(VaapiEncPicture* picture)
{
VideoRateControl mode = rateControlMode();
if (mode == RATE_CONTROL_CBR || mode == RATE_CONTROL_VBR) {
if (m_videoParamCommon.temporalLayers.numLayersMinus1 > 0) {
VAEncMiscParameterTemporalLayerStructure* layerParam = NULL;
if (!picture->newMisc(VAEncMiscParameterTypeTemporalLayerStructure,
layerParam))
return false;
LayerIDs ids;
m_encoder->getLayerIds(ids);
if (layerParam) {
layerParam->number_of_layers = m_videoParamCommon.temporalLayers.numLayersMinus1 + 1;
layerParam->periodicity = ids.size();
for (uint32_t i = 1; i < layerParam->periodicity; i++)
layerParam->layer_id[i - 1] = ids[i];
layerParam->layer_id[layerParam->periodicity - 1] = ids[0];
}
}
}
if (!VaapiEncoderBase::ensureMiscParams(picture))
return false;
return true;
}
YamiStatus VaapiEncoderVP8::encodePicture(const PicturePtr& picture)
{
YamiStatus ret = YAMI_FAIL;
SurfacePtr reconstruct = createSurface();
if (!reconstruct)
return ret;
if (!ensureSequence (picture))
return ret;
if (!ensureMiscParams (picture.get()))
return ret;
RefFlags refFlags;
if (!ensurePicture(picture, reconstruct, refFlags))
return ret;
if (!ensureQMatrix(picture))
return ret;
if (!picture->encode())
return ret;
if (!referenceListUpdate(picture, reconstruct, refFlags))
return ret;
return YAMI_SUCCESS;
}
}
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