| /* INTEL CONFIDENTIAL |
| * Copyright (c) 2009 Intel Corporation. All rights reserved. |
| * |
| * The source code contained or described herein and all documents |
| * related to the source code ("Material") are owned by Intel |
| * Corporation or its suppliers or licensors. Title to the |
| * Material remains with Intel Corporation or its suppliers and |
| * licensors. The Material contains trade secrets and proprietary |
| * and confidential information of Intel or its suppliers and |
| * licensors. The Material is protected by worldwide copyright and |
| * trade secret laws and treaty provisions. No part of the Material |
| * may be used, copied, reproduced, modified, published, uploaded, |
| * posted, transmitted, distributed, or disclosed in any way without |
| * Intel's prior express written permission. |
| * |
| * No license under any patent, copyright, trade secret or other |
| * intellectual property right is granted to or conferred upon you |
| * by disclosure or delivery of the Materials, either expressly, by |
| * implication, inducement, estoppel or otherwise. Any license |
| * under such intellectual property rights must be express and |
| * approved by Intel in writing. |
| * |
| */ |
| |
| #include "VideoDecoderAVC.h" |
| #include "VideoDecoderTrace.h" |
| #include <string.h> |
| |
| VideoDecoderAVC::VideoDecoderAVC(const char *mimeType) |
| : VideoDecoderBase(mimeType, VBP_H264), |
| mToggleDPB(0), |
| mErrorConcealment(false){ |
| |
| invalidateDPB(0); |
| invalidateDPB(1); |
| mLastPictureFlags = VA_PICTURE_H264_INVALID; |
| } |
| |
| VideoDecoderAVC::~VideoDecoderAVC() { |
| stop(); |
| } |
| |
| Decode_Status VideoDecoderAVC::start(VideoConfigBuffer *buffer) { |
| Decode_Status status; |
| |
| status = VideoDecoderBase::start(buffer); |
| CHECK_STATUS("VideoDecoderBase::start"); |
| |
| // We don't want base class to manage reference. |
| VideoDecoderBase::ManageReference(false); |
| // output by picture order count |
| VideoDecoderBase::setOutputMethod(OUTPUT_BY_POC); |
| |
| mErrorConcealment = buffer->flag & WANT_ERROR_CONCEALMENT; |
| if (buffer->data == NULL || buffer->size == 0) { |
| WTRACE("No config data to start VA."); |
| if ((buffer->flag & HAS_SURFACE_NUMBER) && (buffer->flag & HAS_VA_PROFILE)) { |
| ITRACE("Used client supplied profile and surface to start VA."); |
| return VideoDecoderBase::setupVA(buffer->surfaceNumber, buffer->profile); |
| } |
| return DECODE_SUCCESS; |
| } |
| |
| vbp_data_h264 *data = NULL; |
| status = VideoDecoderBase::parseBuffer(buffer->data, buffer->size, true, (void**)&data); |
| CHECK_STATUS("VideoDecoderBase::parseBuffer"); |
| |
| status = startVA(data); |
| return status; |
| } |
| |
| void VideoDecoderAVC::stop(void) { |
| // drop the last frame and ignore return value |
| endDecodingFrame(true); |
| VideoDecoderBase::stop(); |
| invalidateDPB(0); |
| invalidateDPB(1); |
| mToggleDPB = 0; |
| mErrorConcealment = false; |
| mLastPictureFlags = VA_PICTURE_H264_INVALID; |
| } |
| |
| void VideoDecoderAVC::flush(void) { |
| // drop the frame and ignore return value |
| VideoDecoderBase::flush(); |
| invalidateDPB(0); |
| invalidateDPB(1); |
| mToggleDPB = 0; |
| mLastPictureFlags = VA_PICTURE_H264_INVALID; |
| } |
| |
| Decode_Status VideoDecoderAVC::decode(VideoDecodeBuffer *buffer) { |
| Decode_Status status; |
| vbp_data_h264 *data = NULL; |
| if (buffer == NULL) { |
| return DECODE_INVALID_DATA; |
| } |
| status = VideoDecoderBase::parseBuffer( |
| buffer->data, |
| buffer->size, |
| false, |
| (void**)&data); |
| CHECK_STATUS("VideoDecoderBase::parseBuffer"); |
| |
| if (!mVAStarted) { |
| if (data->has_sps && data->has_pps) { |
| status = startVA(data); |
| CHECK_STATUS("startVA"); |
| } else { |
| WTRACE("Can't start VA as either SPS or PPS is still not available."); |
| return DECODE_SUCCESS; |
| } |
| } |
| |
| status = decodeFrame(buffer, data); |
| return status; |
| } |
| |
| Decode_Status VideoDecoderAVC::decodeFrame(VideoDecodeBuffer *buffer, vbp_data_h264 *data) { |
| Decode_Status status; |
| if (data->has_sps == 0 || data->has_pps == 0) { |
| return DECODE_NO_CONFIG; |
| } |
| |
| // Don't remove the following codes, it can be enabled for debugging DPB. |
| #if 0 |
| for (unsigned int i = 0; i < data->num_pictures; i++) { |
| VAPictureH264 &pic = data->pic_data[i].pic_parms->CurrPic; |
| VTRACE("%d: decoding frame %.2f, poc top = %d, poc bottom = %d, flags = %d, reference = %d", |
| i, |
| buffer->timeStamp/1E6, |
| pic.TopFieldOrderCnt, |
| pic.BottomFieldOrderCnt, |
| pic.flags, |
| (pic.flags & VA_PICTURE_H264_SHORT_TERM_REFERENCE) || |
| (pic.flags & VA_PICTURE_H264_LONG_TERM_REFERENCE)); |
| } |
| #endif |
| if (data->new_sps || data->new_pps) { |
| status = handleNewSequence(data); |
| CHECK_STATUS("handleNewSequence"); |
| } |
| |
| // first pic_data always exists, check if any slice is parsed |
| if (data->pic_data[0].num_slices == 0) { |
| ITRACE("No slice available for decoding."); |
| status = mSizeChanged ? DECODE_FORMAT_CHANGE : DECODE_SUCCESS; |
| mSizeChanged = false; |
| return status; |
| } |
| |
| uint64_t lastPTS = mCurrentPTS; |
| mCurrentPTS = buffer->timeStamp; |
| |
| //if (lastPTS != mCurrentPTS) { |
| if (isNewFrame(data, lastPTS == mCurrentPTS)) { |
| // finish decoding the last frame |
| status = endDecodingFrame(false); |
| CHECK_STATUS("endDecodingFrame"); |
| |
| // start decoding a new frame |
| status = beginDecodingFrame(data); |
| CHECK_STATUS("beginDecodingFrame"); |
| } else { |
| status = continueDecodingFrame(data); |
| CHECK_STATUS("continueDecodingFrame"); |
| } |
| |
| // HAS_COMPLETE_FRAME is not reliable as it may indicate end of a field |
| /* if (buffer->flag & HAS_COMPLETE_FRAME) { |
| // finish decoding current frame |
| status = endDecodingFrame(false); |
| CHECK_STATUS("endDecodingFrame"); |
| }*/ |
| |
| if (mSizeChanged) { |
| mSizeChanged = false; |
| return DECODE_FORMAT_CHANGE; |
| } |
| return DECODE_SUCCESS; |
| } |
| |
| Decode_Status VideoDecoderAVC::beginDecodingFrame(vbp_data_h264 *data) { |
| Decode_Status status; |
| |
| status = acquireSurfaceBuffer(); |
| CHECK_STATUS("acquireSurfaceBuffer"); |
| VAPictureH264 *picture = &(data->pic_data[0].pic_parms->CurrPic); |
| if ((picture->flags & VA_PICTURE_H264_SHORT_TERM_REFERENCE) || |
| (picture->flags & VA_PICTURE_H264_LONG_TERM_REFERENCE)) { |
| mAcquiredBuffer->referenceFrame = true; |
| } else { |
| mAcquiredBuffer->referenceFrame = false; |
| } |
| // set asReference in updateDPB |
| |
| if (picture->flags & VA_PICTURE_H264_TOP_FIELD) { |
| mAcquiredBuffer->renderBuffer.scanFormat = VA_BOTTOM_FIELD | VA_TOP_FIELD; |
| } else { |
| mAcquiredBuffer->renderBuffer.scanFormat = VA_FRAME_PICTURE; |
| } |
| |
| // TODO: Set the discontinuity flag |
| mAcquiredBuffer->renderBuffer.flag = 0; |
| mAcquiredBuffer->renderBuffer.timeStamp = mCurrentPTS; |
| mAcquiredBuffer->pictureOrder = getPOC(picture); |
| |
| status = continueDecodingFrame(data); |
| // surface buffer is released if decode fails |
| return status; |
| } |
| |
| |
| Decode_Status VideoDecoderAVC::continueDecodingFrame(vbp_data_h264 *data) { |
| Decode_Status status; |
| vbp_picture_data_h264 *picData = data->pic_data; |
| |
| // TODO: remove these debugging codes |
| if (mAcquiredBuffer == NULL || mAcquiredBuffer->renderBuffer.surface == VA_INVALID_SURFACE) { |
| ETRACE("mAcquiredBuffer is NULL. Implementation bug."); |
| return DECODE_FAIL; |
| } |
| for (uint32_t picIndex = 0; picIndex < data->num_pictures; picIndex++, picData++) { |
| // sanity check |
| if (picData == NULL || picData->pic_parms == NULL || picData->slc_data == NULL || picData->num_slices == 0) { |
| return DECODE_PARSER_FAIL; |
| } |
| |
| for (uint32_t sliceIndex = 0; sliceIndex < picData->num_slices; sliceIndex++) { |
| status = decodeSlice(data, picIndex, sliceIndex); |
| if (status != DECODE_SUCCESS) { |
| endDecodingFrame(true); |
| // TODO: this is new code |
| // remove current frame from DPB as it can't be decoded. |
| removeReferenceFromDPB(picData->pic_parms); |
| return status; |
| } |
| } |
| } |
| return DECODE_SUCCESS; |
| } |
| |
| Decode_Status VideoDecoderAVC::decodeSlice(vbp_data_h264 *data, uint32_t picIndex, uint32_t sliceIndex) { |
| Decode_Status status; |
| VAStatus vaStatus; |
| uint32_t bufferIDCount = 0; |
| // maximum 4 buffers to render a slice: picture parameter, IQMatrix, slice parameter, slice data |
| VABufferID bufferIDs[4]; |
| |
| vbp_picture_data_h264 *picData = &(data->pic_data[picIndex]); |
| vbp_slice_data_h264 *sliceData = &(picData->slc_data[sliceIndex]); |
| VAPictureParameterBufferH264 *picParam = picData->pic_parms; |
| VASliceParameterBufferH264 *sliceParam = &(sliceData->slc_parms); |
| |
| if (sliceParam->first_mb_in_slice == 0 || mDecodingFrame == false) { |
| // either condition indicates start of a new frame |
| if (sliceParam->first_mb_in_slice != 0) { |
| WTRACE("The first slice is lost."); |
| // TODO: handle the first slice lost |
| } |
| if (mDecodingFrame) { |
| // interlace content, complete decoding the first field |
| vaStatus = vaEndPicture(mVADisplay, mVAContext); |
| CHECK_VA_STATUS("vaEndPicture"); |
| |
| // for interlace content, top field may be valid only after the second field is parsed |
| int32_t poc = getPOC(&(picParam->CurrPic)); |
| if (poc < mAcquiredBuffer->pictureOrder) { |
| mAcquiredBuffer->pictureOrder = poc; |
| } |
| } |
| |
| // Check there is no reference frame loss before decoding a frame |
| |
| // Update the reference frames and surface IDs for DPB and current frame |
| status = updateDPB(picParam); |
| CHECK_STATUS("updateDPB"); |
| |
| //We have to provide a hacked DPB rather than complete DPB for libva as workaround |
| status = updateReferenceFrames(picData); |
| CHECK_STATUS("updateReferenceFrames"); |
| |
| vaStatus = vaBeginPicture(mVADisplay, mVAContext, mAcquiredBuffer->renderBuffer.surface); |
| CHECK_VA_STATUS("vaBeginPicture"); |
| |
| // start decoding a frame |
| mDecodingFrame = true; |
| |
| vaStatus = vaCreateBuffer( |
| mVADisplay, |
| mVAContext, |
| VAPictureParameterBufferType, |
| sizeof(VAPictureParameterBufferH264), |
| 1, |
| picParam, |
| &bufferIDs[bufferIDCount]); |
| CHECK_VA_STATUS("vaCreatePictureParameterBuffer"); |
| bufferIDCount++; |
| |
| vaStatus = vaCreateBuffer( |
| mVADisplay, |
| mVAContext, |
| VAIQMatrixBufferType, |
| sizeof(VAIQMatrixBufferH264), |
| 1, |
| data->IQ_matrix_buf, |
| &bufferIDs[bufferIDCount]); |
| CHECK_VA_STATUS("vaCreateIQMatrixBuffer"); |
| bufferIDCount++; |
| } |
| |
| status = setReference(sliceParam); |
| CHECK_STATUS("setReference"); |
| |
| vaStatus = vaCreateBuffer( |
| mVADisplay, |
| mVAContext, |
| VASliceParameterBufferType, |
| sizeof(VASliceParameterBufferH264), |
| 1, |
| sliceParam, |
| &bufferIDs[bufferIDCount]); |
| CHECK_VA_STATUS("vaCreateSliceParameterBuffer"); |
| bufferIDCount++; |
| |
| vaStatus = vaCreateBuffer( |
| mVADisplay, |
| mVAContext, |
| VASliceDataBufferType, |
| sliceData->slice_size, //size |
| 1, //num_elements |
| sliceData->buffer_addr + sliceData->slice_offset, |
| &bufferIDs[bufferIDCount]); |
| CHECK_VA_STATUS("vaCreateSliceDataBuffer"); |
| bufferIDCount++; |
| |
| vaStatus = vaRenderPicture( |
| mVADisplay, |
| mVAContext, |
| bufferIDs, |
| bufferIDCount); |
| CHECK_VA_STATUS("vaRenderPicture"); |
| |
| return DECODE_SUCCESS; |
| } |
| |
| Decode_Status VideoDecoderAVC::setReference(VASliceParameterBufferH264 *sliceParam) { |
| int32_t numList = 1; |
| // TODO: set numList to 0 if it is I slice |
| if (sliceParam->slice_type == 1 || sliceParam->slice_type == 6) { |
| // B slice |
| numList = 2; |
| } |
| |
| int32_t activeMinus1 = sliceParam->num_ref_idx_l0_active_minus1; |
| VAPictureH264 *ref = sliceParam->RefPicList0; |
| |
| for (int32_t i = 0; i < numList; i++) { |
| if (activeMinus1 >= REF_LIST_SIZE) { |
| ETRACE("Invalid activeMinus1 (%d)", activeMinus1); |
| return DECODE_PARSER_FAIL; |
| } |
| for (int32_t j = 0; j <= activeMinus1; j++, ref++) { |
| if (!(ref->flags & VA_PICTURE_H264_INVALID)) { |
| ref->picture_id = findSurface(ref); |
| if (ref->picture_id == VA_INVALID_SURFACE) { |
| if (mLastReference) { |
| WTRACE("Reference frame %d is missing. Use last reference", getPOC(ref)); |
| ref->picture_id = mLastReference->renderBuffer.surface; |
| } else { |
| ETRACE("Reference frame %d is missing. Stop decoding.", getPOC(ref)); |
| return DECODE_NO_REFERENCE; |
| } |
| } |
| } |
| } |
| activeMinus1 = sliceParam->num_ref_idx_l1_active_minus1; |
| ref = sliceParam->RefPicList1; |
| } |
| return DECODE_SUCCESS; |
| } |
| |
| Decode_Status VideoDecoderAVC::updateDPB(VAPictureParameterBufferH264 *picParam) { |
| clearAsReference(mToggleDPB); |
| // pointer to toggled DPB (new) |
| DecodedPictureBuffer *dpb = mDPBs[!mToggleDPB]; |
| VAPictureH264 *ref = picParam->ReferenceFrames; |
| |
| // update current picture ID |
| picParam->CurrPic.picture_id = mAcquiredBuffer->renderBuffer.surface; |
| |
| // build new DPB |
| for (int32_t i = 0; i < MAX_REF_NUMBER; i++, ref++) { |
| if (ref->flags & VA_PICTURE_H264_INVALID) { |
| continue; |
| } |
| dpb->poc = getPOC(ref); |
| dpb->surfaceBuffer = findSurfaceBuffer(ref); |
| if (dpb->surfaceBuffer == NULL) { |
| ETRACE("Reference frame %d is missing for current frame %d", dpb->poc, getPOC(&(picParam->CurrPic))); |
| if (dpb->poc == getPOC(&(picParam->CurrPic))) { |
| WTRACE("updateDPB: Using the current picture for missing reference."); |
| dpb->surfaceBuffer = mAcquiredBuffer; |
| } else if (mLastReference) { |
| WTRACE("updateDPB: Use last reference frame %d for missing reference.", mLastReference->pictureOrder); |
| // TODO: this is new code for error resilience |
| dpb->surfaceBuffer = mLastReference; |
| } else { |
| WTRACE("updateDPB: Unable to recover the missing reference frame."); |
| // continue buillding DPB without updating dpb pointer. |
| continue; |
| // continue building DPB as this reference may not be actually used. |
| // especially happen after seeking to a non-IDR I frame. |
| //return DECODE_NO_REFERENCE; |
| } |
| } |
| if (dpb->surfaceBuffer) { |
| // this surface is used as reference |
| dpb->surfaceBuffer->asReferernce = true; |
| } |
| dpb++; |
| } |
| |
| // add current frame to DPB if it is a reference frame |
| if ((picParam->CurrPic.flags & VA_PICTURE_H264_SHORT_TERM_REFERENCE) || |
| (picParam->CurrPic.flags & VA_PICTURE_H264_LONG_TERM_REFERENCE)) { |
| dpb->poc = getPOC(&(picParam->CurrPic)); |
| dpb->surfaceBuffer = mAcquiredBuffer; |
| dpb->surfaceBuffer->asReferernce = true; |
| } |
| // invalidate the current used DPB |
| invalidateDPB(mToggleDPB); |
| mToggleDPB = !mToggleDPB; |
| return DECODE_SUCCESS; |
| } |
| |
| Decode_Status VideoDecoderAVC::updateReferenceFrames(vbp_picture_data_h264 *picData) { |
| bool found = false; |
| uint32_t flags = 0; |
| VAPictureParameterBufferH264 *picParam = picData->pic_parms; |
| VASliceParameterBufferH264 *sliceParam = NULL; |
| uint8_t activeMinus1 = 0; |
| VAPictureH264 *refList = NULL; |
| VAPictureH264 *dpb = picParam->ReferenceFrames; |
| VAPictureH264 *refFrame = NULL; |
| |
| // invalidate DPB in the picture buffer |
| memset(picParam->ReferenceFrames, 0xFF, sizeof(picParam->ReferenceFrames)); |
| picParam->num_ref_frames = 0; |
| |
| // update DPB from the reference list in each slice. |
| for (uint32_t slice = 0; slice < picData->num_slices; slice++) { |
| sliceParam = &(picData->slc_data[slice].slc_parms); |
| for (int32_t list = 0; list < 2; list++) { |
| refList = (list == 0) ? sliceParam->RefPicList0 : |
| sliceParam->RefPicList1; |
| activeMinus1 = (list == 0) ? sliceParam->num_ref_idx_l0_active_minus1 : |
| sliceParam->num_ref_idx_l1_active_minus1; |
| if (activeMinus1 >= REF_LIST_SIZE) { |
| return DECODE_PARSER_FAIL; |
| } |
| for (uint8_t item = 0; item < (uint8_t)(activeMinus1 + 1); item++, refList++) { |
| if (refList->flags & VA_PICTURE_H264_INVALID) { |
| break; |
| } |
| found = false; |
| refFrame = picParam->ReferenceFrames; |
| for (uint8_t frame = 0; frame < picParam->num_ref_frames; frame++, refFrame++) { |
| if (refFrame->TopFieldOrderCnt == refList->TopFieldOrderCnt) { |
| ///check for complementary field |
| flags = refFrame->flags | refList->flags; |
| //If both TOP and BOTTOM are set, we'll clear those flags |
| if ((flags & VA_PICTURE_H264_TOP_FIELD) && |
| (flags & VA_PICTURE_H264_BOTTOM_FIELD)) { |
| refFrame->flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE; |
| } |
| found = true; //already in the DPB; will not add this one |
| break; |
| } |
| } |
| if (found == false) { |
| // add a new reference to the DPB |
| dpb->picture_id = findSurface(refList); |
| if (dpb->picture_id == VA_INVALID_SURFACE) { |
| if (mLastReference != NULL) { |
| dpb->picture_id = mLastReference->renderBuffer.surface; |
| } else { |
| ETRACE("Reference frame %d is missing. Stop updating references frames.", getPOC(refList)); |
| return DECODE_NO_REFERENCE; |
| } |
| } |
| dpb->flags = refList->flags; |
| dpb->frame_idx = refList->frame_idx; |
| dpb->TopFieldOrderCnt = refList->TopFieldOrderCnt; |
| dpb->BottomFieldOrderCnt = refList->BottomFieldOrderCnt; |
| dpb++; |
| picParam->num_ref_frames++; |
| } |
| } |
| } |
| } |
| return DECODE_SUCCESS; |
| } |
| |
| void VideoDecoderAVC::removeReferenceFromDPB(VAPictureParameterBufferH264 *picParam) { |
| // remove the current frame from DPB as it can't be decoded. |
| if ((picParam->CurrPic.flags & VA_PICTURE_H264_SHORT_TERM_REFERENCE) || |
| (picParam->CurrPic.flags & VA_PICTURE_H264_LONG_TERM_REFERENCE)) { |
| DecodedPictureBuffer *dpb = mDPBs[mToggleDPB]; |
| uint32_t poc = getPOC(&(picParam->CurrPic)); |
| for (int32_t i = 0; i < DPB_SIZE; i++, dpb++) { |
| if (poc == dpb->poc) { |
| dpb->poc = (uint32_t)-1; |
| if (dpb->surfaceBuffer) { |
| dpb->surfaceBuffer->asReferernce = false; |
| } |
| dpb->surfaceBuffer = NULL; |
| break; |
| } |
| } |
| } |
| } |
| |
| uint32_t VideoDecoderAVC::getPOC(VAPictureH264 *pic) { |
| if (pic->flags & VA_PICTURE_H264_BOTTOM_FIELD) { |
| return pic->BottomFieldOrderCnt; |
| } |
| return pic->TopFieldOrderCnt; |
| } |
| |
| VASurfaceID VideoDecoderAVC::findSurface(VAPictureH264 *pic) { |
| VideoSurfaceBuffer *p = findSurfaceBuffer(pic); |
| if (p == NULL) { |
| ETRACE("Could not find surface for poc %d", getPOC(pic)); |
| return VA_INVALID_SURFACE; |
| } |
| return p->renderBuffer.surface; |
| } |
| |
| VideoSurfaceBuffer* VideoDecoderAVC::findSurfaceBuffer(VAPictureH264 *pic) { |
| DecodedPictureBuffer *dpb = mDPBs[mToggleDPB]; |
| for (int32_t i = 0; i < DPB_SIZE; i++, dpb++) { |
| if (dpb->poc == pic->BottomFieldOrderCnt || |
| dpb->poc == pic->TopFieldOrderCnt) { |
| // TODO: remove these debugging codes |
| if (dpb->surfaceBuffer == NULL) { |
| ETRACE("Invalid surface buffer in the DPB for poc %d.", getPOC(pic)); |
| } |
| return dpb->surfaceBuffer; |
| } |
| } |
| ETRACE("Unable to find surface for poc %d", getPOC(pic)); |
| return NULL; |
| } |
| |
| void VideoDecoderAVC::invalidateDPB(int toggle) { |
| DecodedPictureBuffer* p = mDPBs[toggle]; |
| for (int i = 0; i < DPB_SIZE; i++) { |
| p->poc = (uint32_t) -1; |
| p->surfaceBuffer = NULL; |
| p++; |
| } |
| } |
| |
| void VideoDecoderAVC::clearAsReference(int toggle) { |
| DecodedPictureBuffer* p = mDPBs[toggle]; |
| for (int i = 0; i < DPB_SIZE; i++) { |
| if (p->surfaceBuffer) { |
| p->surfaceBuffer->asReferernce = false; |
| } |
| p++; |
| } |
| } |
| |
| Decode_Status VideoDecoderAVC::startVA(vbp_data_h264 *data) { |
| int32_t DPBSize = getDPBSize(data); |
| updateFormatInfo(data); |
| |
| //Use high profile for all kinds of H.264 profiles (baseline, main and high) except for constrained baseline |
| VAProfile vaProfile = VAProfileH264High; |
| |
| // TODO: determine when to use VAProfileH264ConstrainedBaseline, set only if we are told to do so |
| if ((data->codec_data->profile_idc == 66 || data->codec_data->constraint_set0_flag == 1) && |
| data->codec_data->constraint_set1_flag == 1) { |
| if (mErrorConcealment) { |
| vaProfile = VAProfileH264ConstrainedBaseline; |
| } |
| } |
| // for 1080p, limit the total surface to 19, according the hardware limitation |
| // change the max surface number from 19->10 to workaround memory shortage |
| // remove the workaround |
| if(mVideoFormatInfo.height == 1088 && DPBSize + AVC_EXTRA_SURFACE_NUMBER > 19) { |
| DPBSize = 19 - AVC_EXTRA_SURFACE_NUMBER; |
| } |
| VideoDecoderBase::setOutputWindowSize(DPBSize); |
| return VideoDecoderBase::setupVA(DPBSize + AVC_EXTRA_SURFACE_NUMBER, vaProfile); |
| } |
| |
| void VideoDecoderAVC::updateFormatInfo(vbp_data_h264 *data) { |
| // new video size |
| int width = (data->pic_data[0].pic_parms->picture_width_in_mbs_minus1 + 1) * 16; |
| int height = (data->pic_data[0].pic_parms->picture_height_in_mbs_minus1 + 1) * 16; |
| ITRACE("updateFormatInfo: current size: %d x %d, new size: %d x %d", |
| mVideoFormatInfo.width, mVideoFormatInfo.height, width, height); |
| |
| if ((mVideoFormatInfo.width != width || |
| mVideoFormatInfo.height != height) && |
| width && height) { |
| mVideoFormatInfo.width = width; |
| mVideoFormatInfo.height = height; |
| mSizeChanged = true; |
| ITRACE("Video size is changed."); |
| } |
| |
| if (data->new_sps) { |
| mSizeChanged = true; |
| ITRACE("New sequence is received. Assuming video size is changed."); |
| } |
| |
| // video_range has default value of 0. |
| mVideoFormatInfo.videoRange = data->codec_data->video_full_range_flag; |
| |
| switch (data->codec_data->matrix_coefficients) { |
| case 1: |
| mVideoFormatInfo.colorMatrix = VA_SRC_BT709; |
| break; |
| |
| // ITU-R Recommendation BT.470-6 System B, G (MP4), same as |
| // SMPTE 170M/BT601 |
| case 5: |
| case 6: |
| mVideoFormatInfo.colorMatrix = VA_SRC_BT601; |
| break; |
| |
| default: |
| // unknown color matrix, set to 0 so color space flag will not be set. |
| mVideoFormatInfo.colorMatrix = 0; |
| break; |
| } |
| mVideoFormatInfo.aspectX = data->codec_data->sar_width; |
| mVideoFormatInfo.aspectY = data->codec_data->sar_height; |
| mVideoFormatInfo.bitrate = data->codec_data->bit_rate; |
| mVideoFormatInfo.cropLeft = data->codec_data->crop_left; |
| mVideoFormatInfo.cropRight = data->codec_data->crop_right; |
| mVideoFormatInfo.cropTop = data->codec_data->crop_top; |
| mVideoFormatInfo.cropBottom = data->codec_data->crop_bottom; |
| |
| ITRACE("Cropping: left = %d, top = %d, right = %d, bottom = %d", |
| data->codec_data->crop_left, |
| data->codec_data->crop_top, |
| data->codec_data->crop_right, |
| data->codec_data->crop_bottom); |
| |
| mVideoFormatInfo.valid = true; |
| } |
| |
| Decode_Status VideoDecoderAVC::handleNewSequence(vbp_data_h264 *data) { |
| int width = mVideoFormatInfo.width; |
| int height = mVideoFormatInfo.height; |
| |
| updateFormatInfo(data); |
| if (mSizeChanged == false) { |
| return DECODE_SUCCESS; |
| } else if (mConfigBuffer.flag & USE_NATIVE_GRAPHIC_BUFFER){ |
| mSizeChanged = false; |
| flushSurfaceBuffers(); |
| return DECODE_FORMAT_CHANGE; |
| } |
| |
| if (mVideoFormatInfo.width > mVideoFormatInfo.surfaceWidth || |
| mVideoFormatInfo.height > mVideoFormatInfo.surfaceHeight) { |
| ETRACE("New video size %d x %d exceeds surface size %d x %d.", |
| mVideoFormatInfo.width, mVideoFormatInfo.height, |
| mVideoFormatInfo.surfaceWidth, mVideoFormatInfo.surfaceHeight); |
| return DECODE_NEED_RESTART; |
| } |
| |
| if (width == mVideoFormatInfo.width && |
| height == mVideoFormatInfo.height) { |
| ITRACE("New video sequence with the same resolution."); |
| mSizeChanged = false; |
| } else { |
| WTRACE("Video size changed from %d x %d to %d x %d.", width, height, |
| mVideoFormatInfo.width, mVideoFormatInfo.height); |
| flushSurfaceBuffers(); |
| } |
| return DECODE_SUCCESS; |
| } |
| |
| bool VideoDecoderAVC::isNewFrame(vbp_data_h264 *data, bool equalPTS) { |
| if (data->num_pictures == 0) { |
| ETRACE("num_pictures == 0"); |
| return true; |
| } |
| |
| vbp_picture_data_h264* picData = data->pic_data; |
| if (picData->num_slices == 0) { |
| ETRACE("num_slices == 0"); |
| return true; |
| } |
| |
| bool newFrame = false; |
| uint32_t fieldFlags = VA_PICTURE_H264_TOP_FIELD | VA_PICTURE_H264_BOTTOM_FIELD; |
| |
| if (picData->slc_data[0].slc_parms.first_mb_in_slice != 0) { |
| // not the first slice, assume it is continuation of a partial frame |
| // TODO: check if it is new frame boundary as the first slice may get lost in streaming case. |
| WTRACE("first_mb_in_slice != 0"); |
| if (!equalPTS) { |
| // return true if different timestamp, it is a workaround here for a streaming case |
| WTRACE("different PTS, treat it as a new frame"); |
| return true; |
| } |
| } else { |
| if ((picData->pic_parms->CurrPic.flags & fieldFlags) == fieldFlags) { |
| ETRACE("Current picture has both odd field and even field."); |
| } |
| // current picture is a field or a frame, and buffer conains the first slice, check if the current picture and |
| // the last picture form an opposite field pair |
| if (((mLastPictureFlags | picData->pic_parms->CurrPic.flags) & fieldFlags) == fieldFlags) { |
| // opposite field |
| newFrame = false; |
| WTRACE("current picture is not at frame boundary."); |
| mLastPictureFlags = 0; |
| } else { |
| newFrame = true; |
| mLastPictureFlags = 0; |
| for (uint32_t i = 0; i < data->num_pictures; i++) { |
| mLastPictureFlags |= data->pic_data[i].pic_parms->CurrPic.flags; |
| } |
| if ((mLastPictureFlags & fieldFlags) == fieldFlags) { |
| // current buffer contains both odd field and even field. |
| mLastPictureFlags = 0; |
| } |
| } |
| } |
| |
| return newFrame; |
| } |
| |
| int32_t VideoDecoderAVC::getDPBSize(vbp_data_h264 *data) { |
| // 1024 * MaxDPB / ( PicWidthInMbs * FrameHeightInMbs * 384 ), 16 |
| struct DPBTable { |
| int32_t level; |
| float maxDPB; |
| } dpbTable[] = { |
| {9, 148.5}, |
| {10, 148.5}, |
| {11, 337.5}, |
| {12, 891.0}, |
| {13, 891.0}, |
| {20, 891.0}, |
| {21, 1782.0}, |
| {22, 3037.5}, |
| {30, 3037.5}, |
| {31, 6750.0}, |
| {32, 7680.0}, |
| {40, 12288.0}, |
| {41, 12288.0}, |
| {42, 13056.0}, |
| {50, 41400.0}, |
| {51, 69120.0} |
| }; |
| |
| int32_t count = sizeof(dpbTable)/sizeof(DPBTable); |
| float maxDPB = 0; |
| for (int32_t i = 0; i < count; i++) |
| { |
| if (dpbTable[i].level == data->codec_data->level_idc) { |
| maxDPB = dpbTable[i].maxDPB; |
| break; |
| } |
| } |
| |
| int32_t maxDPBSize = maxDPB * 1024 / ( |
| (data->pic_data[0].pic_parms->picture_width_in_mbs_minus1 + 1) * |
| (data->pic_data[0].pic_parms->picture_height_in_mbs_minus1 + 1) * |
| 384); |
| |
| if (maxDPBSize > 16) { |
| maxDPBSize = 16; |
| } else if (maxDPBSize == 0) { |
| maxDPBSize = 3; |
| } |
| if(maxDPBSize < data->codec_data->num_ref_frames) { |
| maxDPBSize = data->codec_data->num_ref_frames; |
| } |
| |
| // add one extra frame for current frame. |
| maxDPBSize += 1; |
| ITRACE("maxDPBSize = %d, num_ref_frame = %d", maxDPBSize, data->codec_data->num_ref_frames); |
| return maxDPBSize; |
| } |
| |
