[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 "internal.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)
{
    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_common_end_frame(avctx, &pic->f, pic_ctx);
    if (val < 0)
        return val;

    ff_h264_draw_horiz_band(h, 0, h->avctx->height);
    return 0;
}

static int vdpau_h264_init(AVCodecContext *avctx)
{
    VdpDecoderProfile profile;
    uint32_t level = avctx->level;

    switch (avctx->profile & ~FF_PROFILE_H264_INTRA) {
    case FF_PROFILE_H264_BASELINE:
        profile = VDP_DECODER_PROFILE_H264_BASELINE;
        break;
    case FF_PROFILE_H264_CONSTRAINED_BASELINE:
    case FF_PROFILE_H264_MAIN:
        profile = VDP_DECODER_PROFILE_H264_MAIN;
        break;
    case FF_PROFILE_H264_HIGH:
        profile = VDP_DECODER_PROFILE_H264_HIGH;
        break;
    default:
        return AVERROR(ENOTSUP);
    }

    if ((avctx->profile & FF_PROFILE_H264_INTRA) && avctx->level == 11)
        level = VDP_DECODER_LEVEL_H264_1b;

    return ff_vdpau_common_init(avctx, profile, level);
}

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),
    .init           = vdpau_h264_init,
    .uninit         = ff_vdpau_common_uninit,
    .priv_data_size = sizeof(VDPAUContext),
};
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"
f6fa7814	27	#include "internal.h"
2ba45a60 DM	28	#include "h264.h"
	29	#include "mpegutils.h"
	30	#include "vdpau.h"
	31	#include "vdpau_internal.h"
	32
	33	static int32_t h264_foc(int foc)
	34	{
	35	if (foc == INT_MAX)
	36	foc = 0;
	37	return foc;
	38	}
	39
	40	static void vdpau_h264_clear_rf(VdpReferenceFrameH264 *rf)
	41	{
	42	rf->surface = VDP_INVALID_HANDLE;
	43	rf->is_long_term = VDP_FALSE;
	44	rf->top_is_reference = VDP_FALSE;
	45	rf->bottom_is_reference = VDP_FALSE;
	46	rf->field_order_cnt[0] = 0;
	47	rf->field_order_cnt[1] = 0;
	48	rf->frame_idx = 0;
	49	}
	50
	51	static void vdpau_h264_set_rf(VdpReferenceFrameH264 rf, H264Picture pic,
	52	int pic_structure)
	53	{
	54	VdpVideoSurface surface = ff_vdpau_get_surface_id(&pic->f);
	55
	56	if (pic_structure == 0)
	57	pic_structure = pic->reference;
	58
	59	rf->surface = surface;
	60	rf->is_long_term = pic->reference && pic->long_ref;
	61	rf->top_is_reference = (pic_structure & PICT_TOP_FIELD) != 0;
	62	rf->bottom_is_reference = (pic_structure & PICT_BOTTOM_FIELD) != 0;
	63	rf->field_order_cnt[0] = h264_foc(pic->field_poc[0]);
	64	rf->field_order_cnt[1] = h264_foc(pic->field_poc[1]);
	65	rf->frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
	66	}
	67
	68	static void vdpau_h264_set_reference_frames(AVCodecContext *avctx)
	69	{
	70	H264Context * const h = avctx->priv_data;
	71	struct vdpau_picture_context *pic_ctx = h->cur_pic_ptr->hwaccel_picture_private;
	72	VdpPictureInfoH264 *info = &pic_ctx->info.h264;
	73	int list;
	74
	75	VdpReferenceFrameH264 *rf = &info->referenceFrames[0];
	76	#define H264_RF_COUNT FF_ARRAY_ELEMS(info->referenceFrames)
	77
	78	for (list = 0; list < 2; ++list) {
	79	H264Picture **lp = list ? h->long_ref : h->short_ref;
	80	int i, ls = list ? 16 : h->short_ref_count;
	81
	82	for (i = 0; i < ls; ++i) {
	83	H264Picture *pic = lp[i];
	84	VdpReferenceFrameH264 *rf2;
	85	VdpVideoSurface surface_ref;
	86	int pic_frame_idx;
	87
	88	if (!pic \|\| !pic->reference)
	89	continue;
	90	pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
	91	surface_ref = ff_vdpau_get_surface_id(&pic->f);
92
93	rf2 = &info->referenceFrames[0];
94	while (rf2 != rf) {
95	if ((rf2->surface == surface_ref) &&
96	(rf2->is_long_term == pic->long_ref) &&
97	(rf2->frame_idx == pic_frame_idx))
98	break;
99	++rf2;
100	}
101	if (rf2 != rf) {
102	rf2->top_is_reference \|= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
103	rf2->bottom_is_reference \|= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
104	continue;
105	}
106
107	if (rf >= &info->referenceFrames[H264_RF_COUNT])
108	continue;
109
110	vdpau_h264_set_rf(rf, pic, pic->reference);
111	++rf;
112	}
113	}
114
115	for (; rf < &info->referenceFrames[H264_RF_COUNT]; ++rf)
116	vdpau_h264_clear_rf(rf);
117	}
118
119	static int vdpau_h264_start_frame(AVCodecContext *avctx,
120	const uint8_t *buffer, uint32_t size)
121	{
122	H264Context * const h = avctx->priv_data;
123	H264Picture *pic = h->cur_pic_ptr;
124	struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
125	VdpPictureInfoH264 *info = &pic_ctx->info.h264;
126
127	/* init VdpPictureInfoH264 */
128	info->slice_count = 0;
129	info->field_order_cnt[0] = h264_foc(pic->field_poc[0]);
130	info->field_order_cnt[1] = h264_foc(pic->field_poc[1]);
131	info->is_reference = h->nal_ref_idc != 0;
132	info->frame_num = h->frame_num;
133	info->field_pic_flag = h->picture_structure != PICT_FRAME;
134	info->bottom_field_flag = h->picture_structure == PICT_BOTTOM_FIELD;
135	info->num_ref_frames = h->sps.ref_frame_count;
136	info->mb_adaptive_frame_field_flag = h->sps.mb_aff && !info->field_pic_flag;
137	info->constrained_intra_pred_flag = h->pps.constrained_intra_pred;
138	info->weighted_pred_flag = h->pps.weighted_pred;
139	info->weighted_bipred_idc = h->pps.weighted_bipred_idc;
140	info->frame_mbs_only_flag = h->sps.frame_mbs_only_flag;
141	info->transform_8x8_mode_flag = h->pps.transform_8x8_mode;
142	info->chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
143	info->second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
144	info->pic_init_qp_minus26 = h->pps.init_qp - 26;
145	info->num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
146	info->num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
147	info->log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
148	info->pic_order_cnt_type = h->sps.poc_type;
149	info->log2_max_pic_order_cnt_lsb_minus4 = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4;
150	info->delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
151	info->direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
152	info->entropy_coding_mode_flag = h->pps.cabac;
153	info->pic_order_present_flag = h->pps.pic_order_present;
154	info->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
155	info->redundant_pic_cnt_present_flag = h->pps.redundant_pic_cnt_present;
156
157	memcpy(info->scaling_lists_4x4, h->pps.scaling_matrix4,
158	sizeof(info->scaling_lists_4x4));
159	memcpy(info->scaling_lists_8x8[0], h->pps.scaling_matrix8[0],
160	sizeof(info->scaling_lists_8x8[0]));
161	memcpy(info->scaling_lists_8x8[1], h->pps.scaling_matrix8[3],
162	sizeof(info->scaling_lists_8x8[1]));
163
164	vdpau_h264_set_reference_frames(avctx);
165
166	return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
167	}
168
169	static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 };
170
171	static int vdpau_h264_decode_slice(AVCodecContext *avctx,
172	const uint8_t *buffer, uint32_t size)
173	{
174	H264Context *h = avctx->priv_data;
175	H264Picture *pic = h->cur_pic_ptr;
176	struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
177	int val;
178
179	val = ff_vdpau_add_buffer(pic_ctx, start_code_prefix, 3);
180	if (val)
181	return val;
182
183	val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
184	if (val)
185	return val;
186
187	pic_ctx->info.h264.slice_count++;
188	return 0;
189	}
190
191	static int vdpau_h264_end_frame(AVCodecContext *avctx)
192	{
2ba45a60 DM	193	H264Context *h = avctx->priv_data;
	194	H264Picture *pic = h->cur_pic_ptr;
	195	struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
f6fa7814 DM	196	int val;
	197
	198	val = ff_vdpau_common_end_frame(avctx, &pic->f, pic_ctx);
	199	if (val < 0)
	200	return val;
2ba45a60 DM	201
2ba45a60 DM	202	ff_h264_draw_horiz_band(h, 0, h->avctx->height);
f6fa7814 DM	203	return 0;
	204	}
	205
	206	static int vdpau_h264_init(AVCodecContext *avctx)
	207	{
	208	VdpDecoderProfile profile;
	209	uint32_t level = avctx->level;
	210
	211	switch (avctx->profile & ~FF_PROFILE_H264_INTRA) {
	212	case FF_PROFILE_H264_BASELINE:
	213	profile = VDP_DECODER_PROFILE_H264_BASELINE;
	214	break;
	215	case FF_PROFILE_H264_CONSTRAINED_BASELINE:
	216	case FF_PROFILE_H264_MAIN:
	217	profile = VDP_DECODER_PROFILE_H264_MAIN;
	218	break;
	219	case FF_PROFILE_H264_HIGH:
	220	profile = VDP_DECODER_PROFILE_H264_HIGH;
	221	break;
	222	default:
	223	return AVERROR(ENOTSUP);
	224	}
2ba45a60	225
f6fa7814 DM	226	if ((avctx->profile & FF_PROFILE_H264_INTRA) && avctx->level == 11)
f6fa7814 DM	227	level = VDP_DECODER_LEVEL_H264_1b;
2ba45a60	228
f6fa7814	229	return ff_vdpau_common_init(avctx, profile, level);
2ba45a60 DM	230	}
	231
	232	AVHWAccel ff_h264_vdpau_hwaccel = {
	233	.name = "h264_vdpau",
	234	.type = AVMEDIA_TYPE_VIDEO,
	235	.id = AV_CODEC_ID_H264,
	236	.pix_fmt = AV_PIX_FMT_VDPAU,
	237	.start_frame = vdpau_h264_start_frame,
	238	.end_frame = vdpau_h264_end_frame,
	239	.decode_slice = vdpau_h264_decode_slice,
	240	.frame_priv_data_size = sizeof(struct vdpau_picture_context),
f6fa7814 DM	241	.init = vdpau_h264_init,
	242	.uninit = ff_vdpau_common_uninit,
	243	.priv_data_size = sizeof(VDPAUContext),
2ba45a60	244	};