Anton Khirnov
10 years ago
parent
3a85397e8b
commit
66acb76bb0
13 changed files with 475 additions and 17 deletions
@ -0,0 +1,116 @@ |
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/*
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* HEVC Parameter Set encoding |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "golomb.h" |
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#include "hevc.h" |
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#include "put_bits.h" |
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static void write_ptl_layer(PutBitContext *pb, PTLCommon *ptl) |
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{ |
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int i; |
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put_bits(pb, 2, ptl->profile_space); |
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put_bits(pb, 1, ptl->tier_flag); |
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put_bits(pb, 5, ptl->profile_idc); |
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for (i = 0; i < 32; i++) |
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put_bits(pb, 1, ptl->profile_compatibility_flag[i]); |
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put_bits(pb, 1, ptl->progressive_source_flag); |
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put_bits(pb, 1, ptl->interlaced_source_flag); |
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put_bits(pb, 1, ptl->non_packed_constraint_flag); |
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put_bits(pb, 1, ptl->frame_only_constraint_flag); |
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put_bits32(pb, 0); // reserved
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put_bits(pb, 12, 0); // reserved
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} |
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static void write_ptl(PutBitContext *pb, PTL *ptl, int max_num_sub_layers) |
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{ |
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int i; |
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write_ptl_layer(pb, &ptl->general_ptl); |
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put_bits(pb, 8, ptl->general_ptl.level_idc); |
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for (i = 0; i < max_num_sub_layers - 1; i++) { |
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put_bits(pb, 1, ptl->sub_layer_profile_present_flag[i]); |
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put_bits(pb, 1, ptl->sub_layer_level_present_flag[i]); |
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} |
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if (max_num_sub_layers > 1) |
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for (i = max_num_sub_layers - 1; i < 8; i++) |
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put_bits(pb, 2, 0); // reserved
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for (i = 0; i < max_num_sub_layers - 1; i++) { |
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if (ptl->sub_layer_profile_present_flag[i]) |
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write_ptl_layer(pb, &ptl->sub_layer_ptl[i]); |
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if (ptl->sub_layer_level_present_flag[i]) |
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put_bits(pb, 8, ptl->sub_layer_ptl[i].level_idc); |
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} |
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} |
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int ff_hevc_encode_nal_vps(HEVCVPS *vps, unsigned int id, |
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uint8_t *buf, int buf_size) |
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{ |
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PutBitContext pb; |
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int i; |
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init_put_bits(&pb, buf, buf_size); |
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put_bits(&pb, 4, id); |
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put_bits(&pb, 2, 3); // reserved
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put_bits(&pb, 6, vps->vps_max_layers - 1); |
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put_bits(&pb, 3, vps->vps_max_sub_layers - 1); |
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put_bits(&pb, 1, vps->vps_temporal_id_nesting_flag); |
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put_bits(&pb, 16, 0xffff); // reserved
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write_ptl(&pb, &vps->ptl, vps->vps_max_sub_layers); |
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put_bits(&pb, 1, vps->vps_sub_layer_ordering_info_present_flag); |
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for (i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_layers - 1; |
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i < vps->vps_max_sub_layers; i++) { |
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set_ue_golomb(&pb, vps->vps_max_dec_pic_buffering[i] - 1); |
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set_ue_golomb(&pb, vps->vps_num_reorder_pics[i]); |
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set_ue_golomb(&pb, vps->vps_max_latency_increase[i] + 1); |
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} |
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put_bits(&pb, 6, vps->vps_max_layer_id); |
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set_ue_golomb(&pb, vps->vps_num_layer_sets - 1); |
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// writing layer_id_included_flag not supported
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if (vps->vps_num_layer_sets > 1) |
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return AVERROR_PATCHWELCOME; |
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put_bits(&pb, 1, vps->vps_timing_info_present_flag); |
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if (vps->vps_timing_info_present_flag) { |
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put_bits32(&pb, vps->vps_num_units_in_tick); |
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put_bits32(&pb, vps->vps_time_scale); |
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put_bits(&pb, 1, vps->vps_poc_proportional_to_timing_flag); |
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if (vps->vps_poc_proportional_to_timing_flag) |
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set_ue_golomb(&pb, vps->vps_num_ticks_poc_diff_one - 1); |
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// writing HRD parameters not supported
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if (vps->vps_num_hrd_parameters) |
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return AVERROR_PATCHWELCOME; |
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} |
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put_bits(&pb, 1, 0); // extension flag
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put_bits(&pb, 1, 1); // stop bit
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avpriv_align_put_bits(&pb); |
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return put_bits_count(&pb) / 8; |
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} |
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@ -0,0 +1,272 @@ |
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/*
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* Intel MediaSDK QSV based HEVC encoder |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include <stdint.h> |
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#include <sys/types.h> |
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#include <mfx/mfxvideo.h> |
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#include "libavutil/common.h" |
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#include "libavutil/opt.h" |
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#include "avcodec.h" |
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#include "bytestream.h" |
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#include "get_bits.h" |
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#include "hevc.h" |
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#include "internal.h" |
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#include "qsv.h" |
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#include "qsv_internal.h" |
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#include "qsvenc.h" |
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enum { |
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LOAD_PLUGIN_NONE, |
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LOAD_PLUGIN_HEVC_SW, |
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LOAD_PLUGIN_HEVC_HW, |
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} LoadPlugin; |
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typedef struct QSVHEVCEncContext { |
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AVClass *class; |
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QSVEncContext qsv; |
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int load_plugin; |
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} QSVHEVCEncContext; |
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static int generate_fake_vps(QSVEncContext *q, AVCodecContext *avctx) |
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{ |
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GetByteContext gbc; |
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PutByteContext pbc; |
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GetBitContext gb; |
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HEVCNAL sps_nal = { NULL }; |
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HEVCSPS sps = { 0 }; |
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HEVCVPS vps = { 0 }; |
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uint8_t vps_buf[128], vps_rbsp_buf[128]; |
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uint8_t *new_extradata; |
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unsigned int sps_id; |
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int ret, i, type, vps_size; |
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if (!avctx->extradata_size) { |
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av_log(avctx, AV_LOG_ERROR, "No extradata returned from libmfx\n"); |
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return AVERROR_UNKNOWN; |
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} |
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/* parse the SPS */ |
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ret = ff_hevc_extract_rbsp(avctx->extradata + 4, avctx->extradata_size - 4, &sps_nal); |
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if (ret < 0) { |
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av_log(avctx, AV_LOG_ERROR, "Error unescaping the SPS buffer\n"); |
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return ret; |
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} |
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ret = init_get_bits8(&gb, sps_nal.data, sps_nal.size); |
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if (ret < 0) { |
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av_freep(&sps_nal.rbsp_buffer); |
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return ret; |
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} |
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get_bits(&gb, 1); |
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type = get_bits(&gb, 6); |
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if (type != NAL_SPS) { |
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av_log(avctx, AV_LOG_ERROR, "Unexpected NAL type in the extradata: %d\n", |
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type); |
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av_freep(&sps_nal.rbsp_buffer); |
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return AVERROR_INVALIDDATA; |
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} |
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get_bits(&gb, 9); |
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ret = ff_hevc_parse_sps(&sps, &gb, &sps_id, 0, NULL, avctx); |
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av_freep(&sps_nal.rbsp_buffer); |
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if (ret < 0) { |
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av_log(avctx, AV_LOG_ERROR, "Error parsing the SPS\n"); |
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return ret; |
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} |
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/* generate the VPS */ |
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vps.vps_max_layers = 1; |
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vps.vps_max_sub_layers = sps.max_sub_layers; |
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memcpy(&vps.ptl, &sps.ptl, sizeof(vps.ptl)); |
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vps.vps_sub_layer_ordering_info_present_flag = 1; |
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for (i = 0; i < MAX_SUB_LAYERS; i++) { |
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vps.vps_max_dec_pic_buffering[i] = sps.temporal_layer[i].max_dec_pic_buffering; |
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vps.vps_num_reorder_pics[i] = sps.temporal_layer[i].num_reorder_pics; |
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vps.vps_max_latency_increase[i] = sps.temporal_layer[i].max_latency_increase; |
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} |
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vps.vps_num_layer_sets = 1; |
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vps.vps_timing_info_present_flag = sps.vui.vui_timing_info_present_flag; |
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vps.vps_num_units_in_tick = sps.vui.vui_num_units_in_tick; |
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vps.vps_time_scale = sps.vui.vui_time_scale; |
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vps.vps_poc_proportional_to_timing_flag = sps.vui.vui_poc_proportional_to_timing_flag; |
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vps.vps_num_ticks_poc_diff_one = sps.vui.vui_num_ticks_poc_diff_one_minus1 + 1; |
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/* generate the encoded RBSP form of the VPS */ |
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ret = ff_hevc_encode_nal_vps(&vps, sps.vps_id, vps_rbsp_buf, sizeof(vps_rbsp_buf)); |
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if (ret < 0) { |
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av_log(avctx, AV_LOG_ERROR, "Error writing the VPS\n"); |
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return ret; |
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} |
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/* escape and add the startcode */ |
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bytestream2_init(&gbc, vps_rbsp_buf, ret); |
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bytestream2_init_writer(&pbc, vps_buf, sizeof(vps_buf)); |
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bytestream2_put_be32(&pbc, 1); // startcode
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bytestream2_put_byte(&pbc, NAL_VPS << 1); // NAL
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bytestream2_put_byte(&pbc, 1); // header
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while (bytestream2_get_bytes_left(&gbc)) { |
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uint32_t b = bytestream2_peek_be24(&gbc); |
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if (b <= 3) { |
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bytestream2_put_be24(&pbc, 3); |
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bytestream2_skip(&gbc, 2); |
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} else |
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bytestream2_put_byte(&pbc, bytestream2_get_byte(&gbc)); |
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} |
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vps_size = bytestream2_tell_p(&pbc); |
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new_extradata = av_mallocz(vps_size + avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); |
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if (!new_extradata) |
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return AVERROR(ENOMEM); |
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memcpy(new_extradata, vps_buf, vps_size); |
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memcpy(new_extradata + vps_size, avctx->extradata, avctx->extradata_size); |
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av_freep(&avctx->extradata); |
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avctx->extradata = new_extradata; |
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avctx->extradata_size += vps_size; |
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return 0; |
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} |
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static av_cold int qsv_enc_init(AVCodecContext *avctx) |
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{ |
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QSVHEVCEncContext *q = avctx->priv_data; |
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int ret; |
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if (q->load_plugin != LOAD_PLUGIN_NONE) { |
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static const char *uid_hevcenc_sw = "2fca99749fdb49aeb121a5b63ef568f7"; |
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static const char *uid_hevcenc_hw = "e5400a06c74d41f5b12d430bbaa23d0b"; |
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if (q->qsv.load_plugins[0]) { |
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av_log(avctx, AV_LOG_WARNING, |
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"load_plugins is not empty, but load_plugin is not set to 'none'." |
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"The load_plugin value will be ignored.\n"); |
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} else { |
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av_freep(&q->qsv.load_plugins); |
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if (q->load_plugin == LOAD_PLUGIN_HEVC_SW) |
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q->qsv.load_plugins = av_strdup(uid_hevcenc_sw); |
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else |
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q->qsv.load_plugins = av_strdup(uid_hevcenc_hw); |
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if (!q->qsv.load_plugins) |
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return AVERROR(ENOMEM); |
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} |
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} |
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ret = ff_qsv_enc_init(avctx, &q->qsv); |
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if (ret < 0) |
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return ret; |
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ret = generate_fake_vps(&q->qsv, avctx); |
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if (ret < 0) { |
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ff_qsv_enc_close(avctx, &q->qsv); |
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return ret; |
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} |
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return 0; |
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} |
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static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt, |
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const AVFrame *frame, int *got_packet) |
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{ |
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QSVHEVCEncContext *q = avctx->priv_data; |
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return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet); |
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} |
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static av_cold int qsv_enc_close(AVCodecContext *avctx) |
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{ |
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QSVHEVCEncContext *q = avctx->priv_data; |
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return ff_qsv_enc_close(avctx, &q->qsv); |
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} |
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#define OFFSET(x) offsetof(QSVHEVCEncContext, x) |
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#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM |
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static const AVOption options[] = { |
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{ "async_depth", "Maximum processing parallelism", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 0, INT_MAX, VE }, |
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{ "avbr_accuracy", "Accuracy of the AVBR ratecontrol", OFFSET(qsv.avbr_accuracy), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE }, |
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{ "avbr_convergence", "Convergence of the AVBR ratecontrol", OFFSET(qsv.avbr_convergence), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE }, |
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{ "load_plugin", "A user plugin to load in an internal session", OFFSET(load_plugin), AV_OPT_TYPE_INT, { .i64 = LOAD_PLUGIN_HEVC_SW }, LOAD_PLUGIN_NONE, LOAD_PLUGIN_HEVC_HW, VE, "load_plugin" }, |
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{ "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_NONE }, 0, 0, VE, "load_plugin" }, |
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{ "hevc_sw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_HEVC_SW }, 0, 0, VE, "load_plugin" }, |
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{ "hevc_hw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_HEVC_HW }, 0, 0, VE, "load_plugin" }, |
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{ "load_plugins", "A :-separate list of hexadecimal plugin UIDs to load in an internal session", |
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OFFSET(qsv.load_plugins), AV_OPT_TYPE_STRING, { .str = "" }, 0, 0, VE }, |
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{ "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" }, |
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{ "unknown", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, VE, "profile" }, |
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{ "main", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAIN }, INT_MIN, INT_MAX, VE, "profile" }, |
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{ "main10", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAIN10 }, INT_MIN, INT_MAX, VE, "profile" }, |
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{ "mainsp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAINSP }, INT_MIN, INT_MAX, VE, "profile" }, |
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{ "preset", NULL, OFFSET(qsv.preset), AV_OPT_TYPE_INT, { .i64 = MFX_TARGETUSAGE_BALANCED }, 0, 7, VE, "preset" }, |
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{ "fast", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_SPEED }, INT_MIN, INT_MAX, VE, "preset" }, |
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{ "medium", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BALANCED }, INT_MIN, INT_MAX, VE, "preset" }, |
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{ "slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_QUALITY }, INT_MIN, INT_MAX, VE, "preset" }, |
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{ NULL }, |
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}; |
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static const AVClass class = { |
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.class_name = "hevc_qsv encoder", |
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.item_name = av_default_item_name, |
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.option = options, |
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.version = LIBAVUTIL_VERSION_INT, |
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}; |
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static const AVCodecDefault qsv_enc_defaults[] = { |
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{ "b", "1M" }, |
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{ "refs", "0" }, |
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// same as the x264 default
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{ "g", "250" }, |
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{ "bf", "3" }, |
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{ "flags", "+cgop" }, |
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{ NULL }, |
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}; |
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AVCodec ff_hevc_qsv_encoder = { |
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.name = "hevc_qsv", |
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.long_name = NULL_IF_CONFIG_SMALL("HEVC (Intel Quick Sync Video acceleration)"), |
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.priv_data_size = sizeof(QSVHEVCEncContext), |
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.type = AVMEDIA_TYPE_VIDEO, |
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.id = AV_CODEC_ID_HEVC, |
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.init = qsv_enc_init, |
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.encode2 = qsv_enc_frame, |
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.close = qsv_enc_close, |
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.capabilities = CODEC_CAP_DELAY, |
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.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12, |
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AV_PIX_FMT_QSV, |
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AV_PIX_FMT_NONE }, |
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.priv_class = &class, |
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.defaults = qsv_enc_defaults, |
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}; |
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