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1 /*
2  * Intel MediaSDK QSV encoder/decoder shared code
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVCODEC_QSV_INTERNAL_H
22 #define AVCODEC_QSV_INTERNAL_H
23 
24 #include "config.h"
25 
26 #if CONFIG_VAAPI
27 #define AVCODEC_QSV_LINUX_SESSION_HANDLE
28 #endif //CONFIG_VAAPI
29 
30 #ifdef AVCODEC_QSV_LINUX_SESSION_HANDLE
31 #include <stdio.h>
32 #include <string.h>
33 #if HAVE_UNISTD_H
34 #include <unistd.h>
35 #endif
36 #include <fcntl.h>
37 #include <va/va.h>
38 #include <va/va_drm.h>
39 #include "libavutil/hwcontext_vaapi.h"
40 #endif
41 
42 #include <mfx/mfxvideo.h>
43 
44 #include "libavutil/frame.h"
45 
46 #include "avcodec.h"
47 
48 #define QSV_VERSION_MAJOR 1
49 #define QSV_VERSION_MINOR 1
50 
51 #define ASYNC_DEPTH_DEFAULT 4       // internal parallelism
52 
53 #define QSV_MAX_ENC_PAYLOAD 2       // # of mfxEncodeCtrl payloads supported
54 #define QSV_MAX_ENC_EXTPARAM 2
55 
56 #define QSV_MAX_ROI_NUM 256
57 
58 #define QSV_MAX_FRAME_EXT_PARAMS 4
59 
60 #define QSV_VERSION_ATLEAST(MAJOR, MINOR)   \
61     (MFX_VERSION_MAJOR > (MAJOR) ||         \
62      MFX_VERSION_MAJOR == (MAJOR) && MFX_VERSION_MINOR >= (MINOR))
63 
64 #define QSV_RUNTIME_VERSION_ATLEAST(MFX_VERSION, MAJOR, MINOR) \
65     ((MFX_VERSION.Major > (MAJOR)) ||                           \
66     (MFX_VERSION.Major == (MAJOR) && MFX_VERSION.Minor >= (MINOR)))
67 
68 typedef struct QSVMid {
69     AVBufferRef *hw_frames_ref;
70     mfxHDLPair *handle_pair;
71 
72     AVFrame *locked_frame;
73     AVFrame *hw_frame;
74     mfxFrameSurface1 surf;
75 } QSVMid;
76 
77 typedef struct QSVFrame {
78     AVFrame *frame;
79     mfxFrameSurface1 surface;
80     mfxEncodeCtrl enc_ctrl;
81     mfxExtDecodedFrameInfo dec_info;
82 #if QSV_VERSION_ATLEAST(1, 34)
83     mfxExtAV1FilmGrainParam av1_film_grain_param;
84 #endif
85     mfxExtBuffer *ext_param[QSV_MAX_FRAME_EXT_PARAMS];
86     int num_ext_params;
87 
88     mfxPayload *payloads[QSV_MAX_ENC_PAYLOAD]; ///< used for enc_ctrl.Payload
89     mfxExtBuffer *extparam[QSV_MAX_ENC_EXTPARAM]; ///< used for enc_ctrl.ExtParam
90 
91     int queued;
92     int used;
93 
94     struct QSVFrame *next;
95 } QSVFrame;
96 
97 typedef struct QSVSession {
98     mfxSession session;
99 #ifdef AVCODEC_QSV_LINUX_SESSION_HANDLE
100     AVBufferRef *va_device_ref;
101     AVHWDeviceContext *va_device_ctx;
102 #endif
103 } QSVSession;
104 
105 typedef struct QSVFramesContext {
106     AVBufferRef *hw_frames_ctx;
107     void *logctx;
108 
109     /* The memory ids for the external frames.
110      * Refcounted, since we need one reference owned by the QSVFramesContext
111      * (i.e. by the encoder/decoder) and another one given to the MFX session
112      * from the frame allocator. */
113     AVBufferRef *mids_buf;
114     QSVMid *mids;
115     int  nb_mids;
116 } QSVFramesContext;
117 
118 int ff_qsv_print_iopattern(void *log_ctx, int mfx_iopattern,
119                            const char *extra_string);
120 
121 int ff_qsv_print_error(void *log_ctx, mfxStatus err,
122                        const char *error_string);
123 
124 int ff_qsv_print_warning(void *log_ctx, mfxStatus err,
125                          const char *warning_string);
126 
127 int ff_qsv_codec_id_to_mfx(enum AVCodecID codec_id);
128 
129 enum AVPixelFormat ff_qsv_map_fourcc(uint32_t fourcc);
130 
131 int ff_qsv_map_pixfmt(enum AVPixelFormat format, uint32_t *fourcc);
132 enum AVPictureType ff_qsv_map_pictype(int mfx_pic_type);
133 
134 enum AVFieldOrder ff_qsv_map_picstruct(int mfx_pic_struct);
135 
136 int ff_qsv_init_internal_session(AVCodecContext *avctx, QSVSession *qs,
137                                  const char *load_plugins, int gpu_copy);
138 
139 int ff_qsv_close_internal_session(QSVSession *qs);
140 
141 int ff_qsv_init_session_device(AVCodecContext *avctx, mfxSession *psession,
142                                AVBufferRef *device_ref, const char *load_plugins,
143                                int gpu_copy);
144 
145 int ff_qsv_init_session_frames(AVCodecContext *avctx, mfxSession *session,
146                                QSVFramesContext *qsv_frames_ctx,
147                                const char *load_plugins, int opaque, int gpu_copy);
148 
149 int ff_qsv_find_surface_idx(QSVFramesContext *ctx, QSVFrame *frame);
150 
151 void ff_qsv_frame_add_ext_param(AVCodecContext *avctx, QSVFrame *frame,
152                                 mfxExtBuffer *param);
153 
154 int ff_qsv_map_frame_to_surface(const AVFrame *frame, mfxFrameSurface1 *surface);
155 
156 
157 #endif /* AVCODEC_QSV_INTERNAL_H */
158