[deb_ffmpeg.git] / ffmpeg / libavcodec / vdpau_h264.c

/*
 * 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 FFmpeg.
 *
 * FFmpeg 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.
 *
 * FFmpeg 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 FFmpeg; 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 "mpegutils.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, H264Picture *pic,
                              int pic_structure)
{
    VdpVideoSurface surface = ff_vdpau_get_surface_id(&pic->f);

    if (pic_structure == 0)
        pic_structure = pic->reference;

    rf->surface             = surface;
    rf->is_long_term        = pic->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;
    struct vdpau_picture_context *pic_ctx = h->cur_pic_ptr->hwaccel_picture_private;
    VdpPictureInfoH264 *info = &pic_ctx->info.h264;
    int list;

    VdpReferenceFrameH264 *rf = &info->referenceFrames[0];
#define H264_RF_COUNT FF_ARRAY_ELEMS(info->referenceFrames)

    for (list = 0; list < 2; ++list) {
        H264Picture **lp = list ? h->long_ref : h->short_ref;
        int i, ls    = list ? 16          : h->short_ref_count;

        for (i = 0; i < ls; ++i) {
            H264Picture *pic = lp[i];
            VdpReferenceFrameH264 *rf2;
            VdpVideoSurface surface_ref;
            int pic_frame_idx;

            if (!pic || !pic->reference)
                continue;
            pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
            surface_ref = ff_vdpau_get_surface_id(&pic->f);

            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->reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
                rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
                continue;
            }

            if (rf >= &info->referenceFrames[H264_RF_COUNT])
                continue;

            vdpau_h264_set_rf(rf, pic, pic->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;
    H264Picture *pic = h->cur_pic_ptr;
    struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
    VdpPictureInfoH264 *info = &pic_ctx->info.h264;

    /* 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                         = h->picture_structure != PICT_FRAME;
    info->bottom_field_flag                      = h->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(pic_ctx, 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)
{
    H264Context *h = avctx->priv_data;
    H264Picture *pic = h->cur_pic_ptr;
    struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
    int val;

    val = ff_vdpau_add_buffer(pic_ctx, start_code_prefix, 3);
    if (val)
        return val;

    val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
    if (val)
        return val;

    pic_ctx->info.h264.slice_count++;
    return 0;
}

static int vdpau_h264_end_frame(AVCodecContext *avctx)
{
    int res = 0;
    AVVDPAUContext *hwctx = avctx->hwaccel_context;
    H264Context *h = avctx->priv_data;
    H264Picture *pic = h->cur_pic_ptr;
    struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
    VdpVideoSurface surf = ff_vdpau_get_surface_id(&pic->f);

#if FF_API_BUFS_VDPAU
FF_DISABLE_DEPRECATION_WARNINGS
    hwctx->info = pic_ctx->info;
    hwctx->bitstream_buffers = pic_ctx->bitstream_buffers;
    hwctx->bitstream_buffers_used = pic_ctx->bitstream_buffers_used;
    hwctx->bitstream_buffers_allocated = pic_ctx->bitstream_buffers_allocated;
FF_ENABLE_DEPRECATION_WARNINGS
#endif

    if (!hwctx->render) {
        res = hwctx->render2(avctx, &pic->f, (void *)&pic_ctx->info,
                             pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
    } else
    hwctx->render(hwctx->decoder, surf, (void *)&pic_ctx->info,
                  pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);

    ff_h264_draw_horiz_band(h, 0, h->avctx->height);
    av_freep(&pic_ctx->bitstream_buffers);

#if FF_API_BUFS_VDPAU
FF_DISABLE_DEPRECATION_WARNINGS
    hwctx->bitstream_buffers = NULL;
    hwctx->bitstream_buffers_used = 0;
    hwctx->bitstream_buffers_allocated = 0;
FF_ENABLE_DEPRECATION_WARNINGS
#endif

    return res;
}

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      = vdpau_h264_end_frame,
    .decode_slice   = vdpau_h264_decode_slice,
    .frame_priv_data_size = sizeof(struct vdpau_picture_context),
};
Commit	Line	Data
2ba45a60 DM	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 "h264.h"
	28	#include "mpegutils.h"
	29	#include "vdpau.h"
	30	#include "vdpau_internal.h"
	31
	32	static int32_t h264_foc(int foc)
	33	{
	34	if (foc == INT_MAX)
	35	foc = 0;
	36	return foc;
	37	}
	38
	39	static void vdpau_h264_clear_rf(VdpReferenceFrameH264 *rf)
	40	{
	41	rf->surface = VDP_INVALID_HANDLE;
	42	rf->is_long_term = VDP_FALSE;
	43	rf->top_is_reference = VDP_FALSE;
	44	rf->bottom_is_reference = VDP_FALSE;
	45	rf->field_order_cnt[0] = 0;
	46	rf->field_order_cnt[1] = 0;
	47	rf->frame_idx = 0;
	48	}
	49
	50	static void vdpau_h264_set_rf(VdpReferenceFrameH264 rf, H264Picture pic,
	51	int pic_structure)
	52	{
	53	VdpVideoSurface surface = ff_vdpau_get_surface_id(&pic->f);
	54
	55	if (pic_structure == 0)
	56	pic_structure = pic->reference;
	57
	58	rf->surface = surface;
	59	rf->is_long_term = pic->reference && pic->long_ref;
	60	rf->top_is_reference = (pic_structure & PICT_TOP_FIELD) != 0;
	61	rf->bottom_is_reference = (pic_structure & PICT_BOTTOM_FIELD) != 0;
	62	rf->field_order_cnt[0] = h264_foc(pic->field_poc[0]);
	63	rf->field_order_cnt[1] = h264_foc(pic->field_poc[1]);
	64	rf->frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
65	}
66
67	static void vdpau_h264_set_reference_frames(AVCodecContext *avctx)
68	{
69	H264Context * const h = avctx->priv_data;
70	struct vdpau_picture_context *pic_ctx = h->cur_pic_ptr->hwaccel_picture_private;
71	VdpPictureInfoH264 *info = &pic_ctx->info.h264;
72	int list;
73
74	VdpReferenceFrameH264 *rf = &info->referenceFrames[0];
75	#define H264_RF_COUNT FF_ARRAY_ELEMS(info->referenceFrames)
76
77	for (list = 0; list < 2; ++list) {
78	H264Picture **lp = list ? h->long_ref : h->short_ref;
79	int i, ls = list ? 16 : h->short_ref_count;
80
81	for (i = 0; i < ls; ++i) {
82	H264Picture *pic = lp[i];
83	VdpReferenceFrameH264 *rf2;
84	VdpVideoSurface surface_ref;
85	int pic_frame_idx;
86
87	if (!pic \|\| !pic->reference)
88	continue;
89	pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
90	surface_ref = ff_vdpau_get_surface_id(&pic->f);
91
92	rf2 = &info->referenceFrames[0];
93	while (rf2 != rf) {
94	if ((rf2->surface == surface_ref) &&
95	(rf2->is_long_term == pic->long_ref) &&
96	(rf2->frame_idx == pic_frame_idx))
97	break;
98	++rf2;
99	}
100	if (rf2 != rf) {
101	rf2->top_is_reference \|= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
102	rf2->bottom_is_reference \|= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
103	continue;
104	}
105
106	if (rf >= &info->referenceFrames[H264_RF_COUNT])
107	continue;
108
109	vdpau_h264_set_rf(rf, pic, pic->reference);
110	++rf;
111	}
112	}
113
114	for (; rf < &info->referenceFrames[H264_RF_COUNT]; ++rf)
115	vdpau_h264_clear_rf(rf);
116	}
117
118	static int vdpau_h264_start_frame(AVCodecContext *avctx,
119	const uint8_t *buffer, uint32_t size)
120	{
121	H264Context * const h = avctx->priv_data;
122	H264Picture *pic = h->cur_pic_ptr;
123	struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
124	VdpPictureInfoH264 *info = &pic_ctx->info.h264;
125
126	/* init VdpPictureInfoH264 */
127	info->slice_count = 0;
128	info->field_order_cnt[0] = h264_foc(pic->field_poc[0]);
129	info->field_order_cnt[1] = h264_foc(pic->field_poc[1]);
130	info->is_reference = h->nal_ref_idc != 0;
131	info->frame_num = h->frame_num;
132	info->field_pic_flag = h->picture_structure != PICT_FRAME;
133	info->bottom_field_flag = h->picture_structure == PICT_BOTTOM_FIELD;
134	info->num_ref_frames = h->sps.ref_frame_count;
135	info->mb_adaptive_frame_field_flag = h->sps.mb_aff && !info->field_pic_flag;
136	info->constrained_intra_pred_flag = h->pps.constrained_intra_pred;
137	info->weighted_pred_flag = h->pps.weighted_pred;
138	info->weighted_bipred_idc = h->pps.weighted_bipred_idc;
139	info->frame_mbs_only_flag = h->sps.frame_mbs_only_flag;
140	info->transform_8x8_mode_flag = h->pps.transform_8x8_mode;
141	info->chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
142	info->second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
143	info->pic_init_qp_minus26 = h->pps.init_qp - 26;
144	info->num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
145	info->num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
146	info->log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
147	info->pic_order_cnt_type = h->sps.poc_type;
148	info->log2_max_pic_order_cnt_lsb_minus4 = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4;
149	info->delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
150	info->direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
151	info->entropy_coding_mode_flag = h->pps.cabac;
152	info->pic_order_present_flag = h->pps.pic_order_present;
153	info->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
154	info->redundant_pic_cnt_present_flag = h->pps.redundant_pic_cnt_present;
155
156	memcpy(info->scaling_lists_4x4, h->pps.scaling_matrix4,
157	sizeof(info->scaling_lists_4x4));
158	memcpy(info->scaling_lists_8x8[0], h->pps.scaling_matrix8[0],
159	sizeof(info->scaling_lists_8x8[0]));
160	memcpy(info->scaling_lists_8x8[1], h->pps.scaling_matrix8[3],
161	sizeof(info->scaling_lists_8x8[1]));
162
163	vdpau_h264_set_reference_frames(avctx);
164
165	return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
166	}
167
168	static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 };
169
170	static int vdpau_h264_decode_slice(AVCodecContext *avctx,
171	const uint8_t *buffer, uint32_t size)
172	{
173	H264Context *h = avctx->priv_data;
174	H264Picture *pic = h->cur_pic_ptr;
175	struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
176	int val;
177
178	val = ff_vdpau_add_buffer(pic_ctx, start_code_prefix, 3);
179	if (val)
180	return val;
181
182	val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
183	if (val)
184	return val;
185
186	pic_ctx->info.h264.slice_count++;
187	return 0;
188	}
189
190	static int vdpau_h264_end_frame(AVCodecContext *avctx)
191	{
192	int res = 0;
193	AVVDPAUContext *hwctx = avctx->hwaccel_context;
194	H264Context *h = avctx->priv_data;
195	H264Picture *pic = h->cur_pic_ptr;
196	struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
197	VdpVideoSurface surf = ff_vdpau_get_surface_id(&pic->f);
198
199	#if FF_API_BUFS_VDPAU
200	FF_DISABLE_DEPRECATION_WARNINGS
201	hwctx->info = pic_ctx->info;
202	hwctx->bitstream_buffers = pic_ctx->bitstream_buffers;
203	hwctx->bitstream_buffers_used = pic_ctx->bitstream_buffers_used;
204	hwctx->bitstream_buffers_allocated = pic_ctx->bitstream_buffers_allocated;
205	FF_ENABLE_DEPRECATION_WARNINGS
206	#endif
207
208	if (!hwctx->render) {
209	res = hwctx->render2(avctx, &pic->f, (void *)&pic_ctx->info,
210	pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
211	} else
212	hwctx->render(hwctx->decoder, surf, (void *)&pic_ctx->info,
213	pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
214
215	ff_h264_draw_horiz_band(h, 0, h->avctx->height);
216	av_freep(&pic_ctx->bitstream_buffers);
217
218	#if FF_API_BUFS_VDPAU
219	FF_DISABLE_DEPRECATION_WARNINGS
220	hwctx->bitstream_buffers = NULL;
221	hwctx->bitstream_buffers_used = 0;
222	hwctx->bitstream_buffers_allocated = 0;
223	FF_ENABLE_DEPRECATION_WARNINGS
224	#endif
225
226	return res;
227	}
228
229	AVHWAccel ff_h264_vdpau_hwaccel = {
230	.name = "h264_vdpau",
231	.type = AVMEDIA_TYPE_VIDEO,
232	.id = AV_CODEC_ID_H264,
233	.pix_fmt = AV_PIX_FMT_VDPAU,
234	.start_frame = vdpau_h264_start_frame,
235	.end_frame = vdpau_h264_end_frame,
236	.decode_slice = vdpau_h264_decode_slice,
237	.frame_priv_data_size = sizeof(struct vdpau_picture_context),
238	};