1 /*
2  *  Copyright (c) 2015 The WebM project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef VP9_VP9_DX_IFACE_H_
12 #define VP9_VP9_DX_IFACE_H_
13 
14 #include "vp9/decoder/vp9_decoder.h"
15 
16 typedef vpx_codec_stream_info_t vp9_stream_info_t;
17 
18 // This limit is due to framebuffer numbers.
19 // TODO(hkuang): Remove this limit after implementing ondemand framebuffers.
20 #define FRAME_CACHE_SIZE 6   // Cache maximum 6 decoded frames.
21 
22 typedef struct cache_frame {
23   int fb_idx;
24   vpx_image_t img;
25 } cache_frame;
26 
27 struct vpx_codec_alg_priv {
28   vpx_codec_priv_t        base;
29   vpx_codec_dec_cfg_t     cfg;
30   vp9_stream_info_t       si;
31   int                     postproc_cfg_set;
32   vp8_postproc_cfg_t      postproc_cfg;
33   vpx_decrypt_cb          decrypt_cb;
34   void                    *decrypt_state;
35   vpx_image_t             img;
36   int                     img_avail;
37   int                     flushed;
38   int                     invert_tile_order;
39   int                     last_show_frame;  // Index of last output frame.
40   int                     byte_alignment;
41   int                     skip_loop_filter;
42 
43   // Frame parallel related.
44   int                     frame_parallel_decode;  // frame-based threading.
45   VPxWorker               *frame_workers;
46   int                     num_frame_workers;
47   int                     next_submit_worker_id;
48   int                     last_submit_worker_id;
49   int                     next_output_worker_id;
50   int                     available_threads;
51   cache_frame             frame_cache[FRAME_CACHE_SIZE];
52   int                     frame_cache_write;
53   int                     frame_cache_read;
54   int                     num_cache_frames;
55   int                     need_resync;      // wait for key/intra-only frame
56   // BufferPool that holds all reference frames. Shared by all the FrameWorkers.
57   BufferPool              *buffer_pool;
58 
59   // External frame buffer info to save for VP9 common.
60   void *ext_priv;  // Private data associated with the external frame buffers.
61   vpx_get_frame_buffer_cb_fn_t get_ext_fb_cb;
62   vpx_release_frame_buffer_cb_fn_t release_ext_fb_cb;
63 };
64 
65 #endif  // VP9_VP9_DX_IFACE_H_
66