mirror of https://github.com/FFmpeg/FFmpeg.git
Signed-off-by: Diego Biurrun <diego@biurrun.de>pull/8/head
Rémi Denis-Courmont
12 years ago
committed by
Diego Biurrun
parent
200e8ac920
commit
51b56a0716
5 changed files with 200 additions and 1 deletions
@ -0,0 +1,196 @@ |
||||
/*
|
||||
* MPEG-4 Part 10 / AVC / H.264 HW decode acceleration through VDPAU |
||||
* |
||||
* Copyright (c) 2008 NVIDIA |
||||
* Copyright (c) 2013 Rémi Denis-Courmont |
||||
* |
||||
* This file is part of Libav. |
||||
* |
||||
* Libav is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* Libav is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with Libav; if not, write to the Free Software Foundation, |
||||
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#include <vdpau/vdpau.h> |
||||
|
||||
#include "avcodec.h" |
||||
#include "h264.h" |
||||
#include "vdpau.h" |
||||
#include "vdpau_internal.h" |
||||
|
||||
static int32_t h264_foc(int foc) |
||||
{ |
||||
if (foc == INT_MAX) |
||||
foc = 0; |
||||
return foc; |
||||
} |
||||
|
||||
static void vdpau_h264_clear_rf(VdpReferenceFrameH264 *rf) |
||||
{ |
||||
rf->surface = VDP_INVALID_HANDLE; |
||||
rf->is_long_term = VDP_FALSE; |
||||
rf->top_is_reference = VDP_FALSE; |
||||
rf->bottom_is_reference = VDP_FALSE; |
||||
rf->field_order_cnt[0] = 0; |
||||
rf->field_order_cnt[1] = 0; |
||||
rf->frame_idx = 0; |
||||
} |
||||
|
||||
static void vdpau_h264_set_rf(VdpReferenceFrameH264 *rf, Picture *pic, |
||||
int pic_structure) |
||||
{ |
||||
VdpVideoSurface surface = ff_vdpau_get_surface_id(pic); |
||||
|
||||
if (pic_structure == 0) |
||||
pic_structure = pic->f.reference; |
||||
|
||||
rf->surface = surface; |
||||
rf->is_long_term = pic->f.reference && pic->long_ref; |
||||
rf->top_is_reference = (pic_structure & PICT_TOP_FIELD) != 0; |
||||
rf->bottom_is_reference = (pic_structure & PICT_BOTTOM_FIELD) != 0; |
||||
rf->field_order_cnt[0] = h264_foc(pic->field_poc[0]); |
||||
rf->field_order_cnt[1] = h264_foc(pic->field_poc[1]); |
||||
rf->frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num; |
||||
} |
||||
|
||||
static void vdpau_h264_set_reference_frames(AVCodecContext *avctx) |
||||
{ |
||||
H264Context * const h = avctx->priv_data; |
||||
AVVDPAUContext *hwctx = avctx->hwaccel_context; |
||||
VdpPictureInfoH264 *info = &hwctx->info.h264; |
||||
int list; |
||||
|
||||
VdpReferenceFrameH264 *rf = &info->referenceFrames[0]; |
||||
#define H264_RF_COUNT FF_ARRAY_ELEMS(info->referenceFrames) |
||||
|
||||
for (list = 0; list < 2; ++list) { |
||||
Picture **lp = list ? h->long_ref : h->short_ref; |
||||
int i, ls = list ? 16 : h->short_ref_count; |
||||
|
||||
for (i = 0; i < ls; ++i) { |
||||
Picture *pic = lp[i]; |
||||
VdpReferenceFrameH264 *rf2; |
||||
VdpVideoSurface surface_ref; |
||||
int pic_frame_idx; |
||||
|
||||
if (!pic || !pic->f.reference) |
||||
continue; |
||||
pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num; |
||||
surface_ref = ff_vdpau_get_surface_id(pic); |
||||
|
||||
rf2 = &info->referenceFrames[0]; |
||||
while (rf2 != rf) { |
||||
if ((rf2->surface == surface_ref) && |
||||
(rf2->is_long_term == pic->long_ref) && |
||||
(rf2->frame_idx == pic_frame_idx)) |
||||
break; |
||||
++rf2; |
||||
} |
||||
if (rf2 != rf) { |
||||
rf2->top_is_reference |= (pic->f.reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE; |
||||
rf2->bottom_is_reference |= (pic->f.reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE; |
||||
continue; |
||||
} |
||||
|
||||
if (rf >= &info->referenceFrames[H264_RF_COUNT]) |
||||
continue; |
||||
|
||||
vdpau_h264_set_rf(rf, pic, pic->f.reference); |
||||
++rf; |
||||
} |
||||
} |
||||
|
||||
for (; rf < &info->referenceFrames[H264_RF_COUNT]; ++rf) |
||||
vdpau_h264_clear_rf(rf); |
||||
} |
||||
|
||||
static int vdpau_h264_start_frame(AVCodecContext *avctx, |
||||
const uint8_t *buffer, uint32_t size) |
||||
{ |
||||
H264Context * const h = avctx->priv_data; |
||||
AVVDPAUContext *hwctx = avctx->hwaccel_context; |
||||
MpegEncContext * const s = &h->s; |
||||
VdpPictureInfoH264 *info = &hwctx->info.h264; |
||||
Picture *pic = s->current_picture_ptr; |
||||
|
||||
/* init VdpPictureInfoH264 */ |
||||
info->slice_count = 0; |
||||
info->field_order_cnt[0] = h264_foc(pic->field_poc[0]); |
||||
info->field_order_cnt[1] = h264_foc(pic->field_poc[1]); |
||||
info->is_reference = h->nal_ref_idc != 0; |
||||
info->frame_num = h->frame_num; |
||||
info->field_pic_flag = s->picture_structure != PICT_FRAME; |
||||
info->bottom_field_flag = s->picture_structure == PICT_BOTTOM_FIELD; |
||||
info->num_ref_frames = h->sps.ref_frame_count; |
||||
info->mb_adaptive_frame_field_flag = h->sps.mb_aff && !info->field_pic_flag; |
||||
info->constrained_intra_pred_flag = h->pps.constrained_intra_pred; |
||||
info->weighted_pred_flag = h->pps.weighted_pred; |
||||
info->weighted_bipred_idc = h->pps.weighted_bipred_idc; |
||||
info->frame_mbs_only_flag = h->sps.frame_mbs_only_flag; |
||||
info->transform_8x8_mode_flag = h->pps.transform_8x8_mode; |
||||
info->chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0]; |
||||
info->second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1]; |
||||
info->pic_init_qp_minus26 = h->pps.init_qp - 26; |
||||
info->num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1; |
||||
info->num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1; |
||||
info->log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4; |
||||
info->pic_order_cnt_type = h->sps.poc_type; |
||||
info->log2_max_pic_order_cnt_lsb_minus4 = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4; |
||||
info->delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag; |
||||
info->direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag; |
||||
info->entropy_coding_mode_flag = h->pps.cabac; |
||||
info->pic_order_present_flag = h->pps.pic_order_present; |
||||
info->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present; |
||||
info->redundant_pic_cnt_present_flag = h->pps.redundant_pic_cnt_present; |
||||
|
||||
memcpy(info->scaling_lists_4x4, h->pps.scaling_matrix4, |
||||
sizeof(info->scaling_lists_4x4)); |
||||
memcpy(info->scaling_lists_8x8[0], h->pps.scaling_matrix8[0], |
||||
sizeof(info->scaling_lists_8x8[0])); |
||||
memcpy(info->scaling_lists_8x8[1], h->pps.scaling_matrix8[3], |
||||
sizeof(info->scaling_lists_8x8[1])); |
||||
|
||||
vdpau_h264_set_reference_frames(avctx); |
||||
|
||||
return ff_vdpau_common_start_frame(avctx, buffer, size); |
||||
} |
||||
|
||||
static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 }; |
||||
|
||||
static int vdpau_h264_decode_slice(AVCodecContext *avctx, |
||||
const uint8_t *buffer, uint32_t size) |
||||
{ |
||||
AVVDPAUContext *hwctx = avctx->hwaccel_context; |
||||
int val; |
||||
|
||||
val = ff_vdpau_add_buffer(avctx, start_code_prefix, 3); |
||||
if (val) |
||||
return val; |
||||
|
||||
val = ff_vdpau_add_buffer(avctx, buffer, size); |
||||
if (val) |
||||
return val; |
||||
|
||||
hwctx->info.h264.slice_count++; |
||||
return 0; |
||||
} |
||||
|
||||
AVHWAccel ff_h264_vdpau_hwaccel = { |
||||
.name = "h264_vdpau", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = AV_CODEC_ID_H264, |
||||
.pix_fmt = AV_PIX_FMT_VDPAU, |
||||
.start_frame = vdpau_h264_start_frame, |
||||
.end_frame = ff_vdpau_common_end_frame, |
||||
.decode_slice = vdpau_h264_decode_slice, |
||||
}; |
||||
Loading…
Reference in new issue