184 lines
7.5 KiB
C
184 lines
7.5 KiB
C
/*
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* Video Decode and Presentation API for UNIX (VDPAU) is used for
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* HW decode acceleration for MPEG-1/2, H.264 and VC-1.
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*
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* Copyright (c) 2008 NVIDIA.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 <limits.h>
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#include "avcodec.h"
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#include "h264.h"
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#undef NDEBUG
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#include <assert.h>
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#include "vdpau.h"
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#include "vdpau_internal.h"
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/**
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* \addtogroup VDPAU_Decoding
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*
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* @{
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*/
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static void vdpau_h264_set_reference_frames(H264Context *h)
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{
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MpegEncContext * s = &h->s;
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struct vdpau_render_state * render, * render_ref;
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VdpReferenceFrameH264 * rf, * rf2;
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Picture * pic;
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int i, list, pic_frame_idx;
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render = (struct vdpau_render_state*)s->current_picture_ptr->data[0];
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assert(render);
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rf = &render->info.h264.referenceFrames[0];
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#define H264_RF_COUNT FF_ARRAY_ELEMS(render->info.h264.referenceFrames)
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for (list = 0; list < 2; ++list) {
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Picture **lp = list ? h->long_ref : h->short_ref;
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int ls = list ? h->long_ref_count : h->short_ref_count;
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for (i = 0; i < ls; ++i) {
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pic = lp[i];
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if (!pic || !pic->reference)
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continue;
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pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
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render_ref = (struct vdpau_render_state*)pic->data[0];
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assert(render_ref);
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rf2 = &render->info.h264.referenceFrames[0];
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while (rf2 != rf) {
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if (
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(rf2->surface == render_ref->surface)
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&& (rf2->is_long_term == pic->long_ref)
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&& (rf2->frame_idx == pic_frame_idx)
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)
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break;
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++rf2;
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}
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if (rf2 != rf) {
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rf2->top_is_reference |= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
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rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
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continue;
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}
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if (rf >= &render->info.h264.referenceFrames[H264_RF_COUNT])
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continue;
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rf->surface = render_ref->surface;
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rf->is_long_term = pic->long_ref;
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rf->top_is_reference = (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
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rf->bottom_is_reference = (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
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rf->field_order_cnt[0] = pic->field_poc[0];
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rf->field_order_cnt[1] = pic->field_poc[1];
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rf->frame_idx = pic_frame_idx;
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++rf;
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}
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}
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for (; rf < &render->info.h264.referenceFrames[H264_RF_COUNT]; ++rf) {
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rf->surface = VDP_INVALID_HANDLE;
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rf->is_long_term = 0;
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rf->top_is_reference = 0;
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rf->bottom_is_reference = 0;
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rf->field_order_cnt[0] = 0;
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rf->field_order_cnt[1] = 0;
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rf->frame_idx = 0;
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}
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}
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void ff_vdpau_h264_add_data_chunk(H264Context *h, const uint8_t *buf, int buf_size)
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{
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MpegEncContext * s = &h->s;
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struct vdpau_render_state * render;
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render = (struct vdpau_render_state*)s->current_picture_ptr->data[0];
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assert(render);
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if (!render->bitstream_buffers_used)
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vdpau_h264_set_reference_frames(h);
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render->bitstream_buffers= av_fast_realloc(
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render->bitstream_buffers,
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&render->bitstream_buffers_allocated,
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sizeof(*render->bitstream_buffers)*(render->bitstream_buffers_used + 1)
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);
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render->bitstream_buffers[render->bitstream_buffers_used].struct_version = VDP_BITSTREAM_BUFFER_VERSION;
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render->bitstream_buffers[render->bitstream_buffers_used].bitstream = buf;
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render->bitstream_buffers[render->bitstream_buffers_used].bitstream_bytes = buf_size;
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render->bitstream_buffers_used++;
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}
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void ff_vdpau_h264_picture_complete(H264Context *h)
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{
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MpegEncContext * s = &h->s;
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struct vdpau_render_state * render;
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render = (struct vdpau_render_state*)s->current_picture_ptr->data[0];
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assert(render);
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render->info.h264.slice_count = h->slice_num;
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if (render->info.h264.slice_count < 1)
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return;
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for (int i = 0; i < 2; ++i) {
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int foc = s->current_picture_ptr->field_poc[i];
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if (foc == INT_MAX)
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foc = 0;
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render->info.h264.field_order_cnt[i] = foc;
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}
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render->info.h264.is_reference = s->current_picture_ptr->reference ? VDP_TRUE : VDP_FALSE;
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render->info.h264.frame_num = h->frame_num;
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render->info.h264.field_pic_flag = s->picture_structure != PICT_FRAME;
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render->info.h264.bottom_field_flag = s->picture_structure == PICT_BOTTOM_FIELD;
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render->info.h264.num_ref_frames = h->sps.ref_frame_count;
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render->info.h264.mb_adaptive_frame_field_flag = h->sps.mb_aff;
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render->info.h264.constrained_intra_pred_flag = h->pps.constrained_intra_pred;
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render->info.h264.weighted_pred_flag = h->pps.weighted_pred;
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render->info.h264.weighted_bipred_idc = h->pps.weighted_bipred_idc;
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render->info.h264.frame_mbs_only_flag = h->sps.frame_mbs_only_flag;
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render->info.h264.transform_8x8_mode_flag = h->pps.transform_8x8_mode;
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render->info.h264.chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
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render->info.h264.second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
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render->info.h264.pic_init_qp_minus26 = h->pps.init_qp - 26;
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render->info.h264.num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
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render->info.h264.num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
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render->info.h264.log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
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render->info.h264.pic_order_cnt_type = h->sps.poc_type;
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render->info.h264.log2_max_pic_order_cnt_lsb_minus4 = h->sps.log2_max_poc_lsb - 4;
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render->info.h264.delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
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render->info.h264.direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
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render->info.h264.entropy_coding_mode_flag = h->pps.cabac;
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render->info.h264.pic_order_present_flag = h->pps.pic_order_present;
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render->info.h264.deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
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render->info.h264.redundant_pic_cnt_present_flag = h->pps.redundant_pic_cnt_present;
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memcpy(render->info.h264.scaling_lists_4x4, h->pps.scaling_matrix4, sizeof(render->info.h264.scaling_lists_4x4));
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memcpy(render->info.h264.scaling_lists_8x8, h->pps.scaling_matrix8, sizeof(render->info.h264.scaling_lists_8x8));
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ff_draw_horiz_band(s, 0, s->avctx->height);
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render->bitstream_buffers_used = 0;
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}
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/* @}*/
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