FFmpeg coverage

Line	Branch	Exec	Source
1			/*
2			* MPEG-4 Part 10 / AVC / H.264 HW decode acceleration through VDPAU
3			*
4			* Copyright (c) 2008 NVIDIA
5			* Copyright (c) 2013 Rémi Denis-Courmont
6			*
7			* This file is part of FFmpeg.
8			*
9			* FFmpeg is free software; you can redistribute it and/or
10			* modify it under the terms of the GNU Lesser General Public
11			* License as published by the Free Software Foundation; either
12			* version 2.1 of the License, or (at your option) any later version.
13			*
14			* FFmpeg is distributed in the hope that it will be useful,
15			* but WITHOUT ANY WARRANTY; without even the implied warranty of
16			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17			* Lesser General Public License for more details.
18			*
19			* You should have received a copy of the GNU Lesser General Public
20			* License along with FFmpeg; if not, write to the Free Software Foundation,
21			* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22			*/
23
24			#include <vdpau/vdpau.h>
25
26			#include "avcodec.h"
27			#include "h264dec.h"
28			#include "h264_ps.h"
29			#include "hwaccel_internal.h"
30			#include "mpegutils.h"
31			#include "vdpau.h"
32			#include "vdpau_internal.h"
33
34		✗	static int32_t h264_foc(int foc)
35			{
36		✗	if (foc == INT_MAX)
37		✗	foc = 0;
38		✗	return foc;
39			}
40
41		✗	static void vdpau_h264_clear_rf(VdpReferenceFrameH264 *rf)
42			{
43		✗	rf->surface = VDP_INVALID_HANDLE;
44		✗	rf->is_long_term = VDP_FALSE;
45		✗	rf->top_is_reference = VDP_FALSE;
46		✗	rf->bottom_is_reference = VDP_FALSE;
47		✗	rf->field_order_cnt[0] = 0;
48		✗	rf->field_order_cnt[1] = 0;
49		✗	rf->frame_idx = 0;
50		✗	}
51
52		✗	static void vdpau_h264_set_rf(VdpReferenceFrameH264 *rf, H264Picture *pic,
53			int pic_structure)
54			{
55		✗	VdpVideoSurface surface = ff_vdpau_get_surface_id(pic->f);
56
57		✗	if (pic_structure == 0)
58		✗	pic_structure = pic->reference;
59
60		✗	rf->surface = surface;
61		✗	rf->is_long_term = pic->reference && pic->long_ref;
62		✗	rf->top_is_reference = (pic_structure & PICT_TOP_FIELD) != 0;
63		✗	rf->bottom_is_reference = (pic_structure & PICT_BOTTOM_FIELD) != 0;
64		✗	rf->field_order_cnt[0] = h264_foc(pic->field_poc[0]);
65		✗	rf->field_order_cnt[1] = h264_foc(pic->field_poc[1]);
66		✗	rf->frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
67		✗	}
68
69		✗	static void vdpau_h264_set_reference_frames(AVCodecContext *avctx)
70			{
71		✗	H264Context * const h = avctx->priv_data;
72		✗	struct vdpau_picture_context *pic_ctx = h->cur_pic_ptr->hwaccel_picture_private;
73		✗	VdpPictureInfoH264 *info = &pic_ctx->info.h264;
74			int list;
75
76		✗	VdpReferenceFrameH264 *rf = &info->referenceFrames[0];
77			#define H264_RF_COUNT FF_ARRAY_ELEMS(info->referenceFrames)
78
79		✗	for (list = 0; list < 2; ++list) {
80		✗	H264Picture **lp = list ? h->long_ref : h->short_ref;
81		✗	int i, ls = list ? 16 : h->short_ref_count;
82
83		✗	for (i = 0; i < ls; ++i) {
84		✗	H264Picture *pic = lp[i];
85			VdpReferenceFrameH264 *rf2;
86			VdpVideoSurface surface_ref;
87			int pic_frame_idx;
88
89		✗	if (!pic || !pic->reference)
90		✗	continue;
91		✗	pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
92		✗	surface_ref = ff_vdpau_get_surface_id(pic->f);
93
94		✗	rf2 = &info->referenceFrames[0];
95		✗	while (rf2 != rf) {
96		✗	if ((rf2->surface == surface_ref) &&
97		✗	(rf2->is_long_term == pic->long_ref) &&
98		✗	(rf2->frame_idx == pic_frame_idx))
99		✗	break;
100		✗	++rf2;
101			}
102		✗	if (rf2 != rf) {
103		✗	rf2->top_is_reference |= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
104		✗	rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
105		✗	continue;
106			}
107
108		✗	if (rf >= &info->referenceFrames[H264_RF_COUNT])
109		✗	continue;
110
111		✗	vdpau_h264_set_rf(rf, pic, pic->reference);
112		✗	++rf;
113			}
114			}
115
116		✗	for (; rf < &info->referenceFrames[H264_RF_COUNT]; ++rf)
117		✗	vdpau_h264_clear_rf(rf);
118		✗	}
119
120		✗	static int vdpau_h264_start_frame(AVCodecContext *avctx,
121			const AVBufferRef *buffer_ref,
122			const uint8_t *buffer, uint32_t size)
123			{
124		✗	H264Context * const h = avctx->priv_data;
125		✗	const PPS *pps = h->ps.pps;
126		✗	const SPS *sps = h->ps.sps;
127		✗	H264Picture *pic = h->cur_pic_ptr;
128		✗	struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
129		✗	VdpPictureInfoH264 *info = &pic_ctx->info.h264;
130			#ifdef VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE
131		✗	VdpPictureInfoH264Predictive *info2 = &pic_ctx->info.h264_predictive;
132			#endif
133
134			/* init VdpPictureInfoH264 */
135		✗	info->slice_count = 0;
136		✗	info->field_order_cnt[0] = h264_foc(pic->field_poc[0]);
137		✗	info->field_order_cnt[1] = h264_foc(pic->field_poc[1]);
138		✗	info->is_reference = h->nal_ref_idc != 0;
139		✗	info->frame_num = h->poc.frame_num;
140		✗	info->field_pic_flag = h->picture_structure != PICT_FRAME;
141		✗	info->bottom_field_flag = h->picture_structure == PICT_BOTTOM_FIELD;
142		✗	info->num_ref_frames = sps->ref_frame_count;
143		✗	info->mb_adaptive_frame_field_flag = sps->mb_aff && !info->field_pic_flag;
144		✗	info->constrained_intra_pred_flag = pps->constrained_intra_pred;
145		✗	info->weighted_pred_flag = pps->weighted_pred;
146		✗	info->weighted_bipred_idc = pps->weighted_bipred_idc;
147		✗	info->frame_mbs_only_flag = sps->frame_mbs_only_flag;
148		✗	info->transform_8x8_mode_flag = pps->transform_8x8_mode;
149		✗	info->chroma_qp_index_offset = pps->chroma_qp_index_offset[0];
150		✗	info->second_chroma_qp_index_offset = pps->chroma_qp_index_offset[1];
151		✗	info->pic_init_qp_minus26 = pps->init_qp - 26;
152		✗	info->num_ref_idx_l0_active_minus1 = pps->ref_count[0] - 1;
153		✗	info->num_ref_idx_l1_active_minus1 = pps->ref_count[1] - 1;
154		✗	info->log2_max_frame_num_minus4 = sps->log2_max_frame_num - 4;
155		✗	info->pic_order_cnt_type = sps->poc_type;
156		✗	info->log2_max_pic_order_cnt_lsb_minus4 = sps->poc_type ? 0 : sps->log2_max_poc_lsb - 4;
157		✗	info->delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag;
158		✗	info->direct_8x8_inference_flag = sps->direct_8x8_inference_flag;
159			#ifdef VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE
160		✗	info2->qpprime_y_zero_transform_bypass_flag = sps->transform_bypass;
161		✗	info2->separate_colour_plane_flag = sps->residual_color_transform_flag;
162			#endif
163		✗	info->entropy_coding_mode_flag = pps->cabac;
164		✗	info->pic_order_present_flag = pps->pic_order_present;
165		✗	info->deblocking_filter_control_present_flag = pps->deblocking_filter_parameters_present;
166		✗	info->redundant_pic_cnt_present_flag = pps->redundant_pic_cnt_present;
167
168		✗	memcpy(info->scaling_lists_4x4, pps->scaling_matrix4,
169			sizeof(info->scaling_lists_4x4));
170		✗	memcpy(info->scaling_lists_8x8[0], pps->scaling_matrix8[0],
171			sizeof(info->scaling_lists_8x8[0]));
172		✗	memcpy(info->scaling_lists_8x8[1], pps->scaling_matrix8[3],
173			sizeof(info->scaling_lists_8x8[1]));
174
175		✗	vdpau_h264_set_reference_frames(avctx);
176
177		✗	return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
178			}
179
180			static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 };
181
182		✗	static int vdpau_h264_decode_slice(AVCodecContext *avctx,
183			const uint8_t *buffer, uint32_t size)
184			{
185		✗	H264Context *h = avctx->priv_data;
186		✗	H264Picture *pic = h->cur_pic_ptr;
187		✗	struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
188			int val;
189
190		✗	val = ff_vdpau_add_buffer(pic_ctx, start_code_prefix, 3);
191		✗	if (val)
192		✗	return val;
193
194		✗	val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
195		✗	if (val)
196		✗	return val;
197
198		✗	pic_ctx->info.h264.slice_count++;
199		✗	return 0;
200			}
201
202		✗	static int vdpau_h264_end_frame(AVCodecContext *avctx)
203			{
204		✗	H264Context *h = avctx->priv_data;
205		✗	H264SliceContext *sl = &h->slice_ctx[0];
206		✗	H264Picture *pic = h->cur_pic_ptr;
207		✗	struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
208			int val;
209
210		✗	val = ff_vdpau_common_end_frame(avctx, pic->f, pic_ctx);
211		✗	if (val < 0)
212		✗	return val;
213
214		✗	ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
215		✗	return 0;
216			}
217
218		✗	static av_cold int vdpau_h264_init(AVCodecContext *avctx)
219			{
220			VdpDecoderProfile profile;
221		✗	uint32_t level = avctx->level;
222
223		✗	switch (avctx->profile & ~AV_PROFILE_H264_INTRA) {
224		✗	case AV_PROFILE_H264_BASELINE:
225		✗	profile = VDP_DECODER_PROFILE_H264_BASELINE;
226		✗	break;
227		✗	case AV_PROFILE_H264_CONSTRAINED_BASELINE:
228			#ifdef VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE
229		✗	profile = VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE;
230		✗	break;
231			#endif
232		✗	case AV_PROFILE_H264_MAIN:
233		✗	profile = VDP_DECODER_PROFILE_H264_MAIN;
234		✗	break;
235		✗	case AV_PROFILE_H264_HIGH:
236		✗	profile = VDP_DECODER_PROFILE_H264_HIGH;
237		✗	break;
238			#ifdef VDP_DECODER_PROFILE_H264_EXTENDED
239		✗	case AV_PROFILE_H264_EXTENDED:
240		✗	profile = VDP_DECODER_PROFILE_H264_EXTENDED;
241		✗	break;
242			#endif
243		✗	case AV_PROFILE_H264_HIGH_10:
244			/* XXX: High 10 can be treated as High so long as only 8 bits per
245			* format are supported. */
246		✗	profile = VDP_DECODER_PROFILE_H264_HIGH;
247		✗	break;
248			#ifdef VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE
249		✗	case AV_PROFILE_H264_HIGH_422:
250			case AV_PROFILE_H264_HIGH_444_PREDICTIVE:
251			case AV_PROFILE_H264_CAVLC_444:
252		✗	profile = VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE;
253		✗	break;
254			#endif
255		✗	default:
256		✗	return AVERROR(ENOTSUP);
257			}
258
259		✗	if ((avctx->profile & AV_PROFILE_H264_INTRA) && avctx->level == 11)
260		✗	level = VDP_DECODER_LEVEL_H264_1b;
261
262		✗	return ff_vdpau_common_init(avctx, profile, level);
263			}
264
265			const FFHWAccel ff_h264_vdpau_hwaccel = {
266			.p.name = "h264_vdpau",
267			.p.type = AVMEDIA_TYPE_VIDEO,
268			.p.id = AV_CODEC_ID_H264,
269			.p.pix_fmt = AV_PIX_FMT_VDPAU,
270			.start_frame = vdpau_h264_start_frame,
271			.end_frame = vdpau_h264_end_frame,
272			.decode_slice = vdpau_h264_decode_slice,
273			.frame_priv_data_size = sizeof(struct vdpau_picture_context),
274			.init = vdpau_h264_init,
275			.uninit = ff_vdpau_common_uninit,
276			.frame_params = ff_vdpau_common_frame_params,
277			.priv_data_size = sizeof(VDPAUContext),
278			.caps_internal = HWACCEL_CAP_ASYNC_SAFE,
279			};
280