WebM Codec SDK

vpx_decoder.h
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1 /*
2 * Copyright (c) 2010 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 #ifndef VPX_VPX_VPX_DECODER_H_
11 #define VPX_VPX_VPX_DECODER_H_
12
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31
32 #include "./vpx_codec.h"
33 #include "./vpx_frame_buffer.h"
34
43 #define VPX_DECODER_ABI_VERSION \
44 (3 + VPX_CODEC_ABI_VERSION)
54 #define VPX_CODEC_CAP_PUT_SLICE 0x10000
55 #define VPX_CODEC_CAP_PUT_FRAME 0x20000
56 #define VPX_CODEC_CAP_POSTPROC 0x40000
58 #define VPX_CODEC_CAP_ERROR_CONCEALMENT 0x80000
59
60 #define VPX_CODEC_CAP_INPUT_FRAGMENTS 0x100000
61
70 #define VPX_CODEC_CAP_FRAME_THREADING 0x200000
71
72 #define VPX_CODEC_CAP_EXTERNAL_FRAME_BUFFER 0x400000
73
74 #define VPX_CODEC_USE_POSTPROC 0x10000
76 #define VPX_CODEC_USE_ERROR_CONCEALMENT 0x20000
77
79 #define VPX_CODEC_USE_INPUT_FRAGMENTS 0x40000
80
81 #define VPX_CODEC_USE_FRAME_THREADING 0x80000
82
89 typedef struct vpx_codec_stream_info {
90 unsigned int sz;
91 unsigned int w;
92 unsigned int h;
93 unsigned int is_kf;
94 } vpx_codec_stream_info_t;
95
96 /* REQUIRED FUNCTIONS
97 *
98 * The following functions are required to be implemented for all decoders.
99 * They represent the base case functionality expected of all decoders.
100 */
101
107 typedef struct vpx_codec_dec_cfg {
108 unsigned int threads;
109 unsigned int w;
110 unsigned int h;
111 } vpx_codec_dec_cfg_t;
135 vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t *ctx,
136 vpx_codec_iface_t *iface,
137 const vpx_codec_dec_cfg_t *cfg,
138 vpx_codec_flags_t flags, int ver);
139
144 #define vpx_codec_dec_init(ctx, iface, cfg, flags) \
145 vpx_codec_dec_init_ver(ctx, iface, cfg, flags, VPX_DECODER_ABI_VERSION)
146
164 vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t *iface,
165 const uint8_t *data,
166 unsigned int data_sz,
167 vpx_codec_stream_info_t *si);
168
182 vpx_codec_err_t vpx_codec_get_stream_info(vpx_codec_ctx_t *ctx,
183 vpx_codec_stream_info_t *si);
184
215 vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t *ctx, const uint8_t *data,
216 unsigned int data_sz, void *user_priv,
217 long deadline);
218
235 vpx_image_t *vpx_codec_get_frame(vpx_codec_ctx_t *ctx, vpx_codec_iter_t *iter);
236
252 typedef void (*vpx_codec_put_frame_cb_fn_t)(void *user_priv,
253 const vpx_image_t *img);
254
270 vpx_codec_err_t vpx_codec_register_put_frame_cb(vpx_codec_ctx_t *ctx,
271 vpx_codec_put_frame_cb_fn_t cb,
272 void *user_priv);
273
291 typedef void (*vpx_codec_put_slice_cb_fn_t)(void *user_priv,
292 const vpx_image_t *img,
293 const vpx_image_rect_t *valid,
294 const vpx_image_rect_t *update);
295
311 vpx_codec_err_t vpx_codec_register_put_slice_cb(vpx_codec_ctx_t *ctx,
312 vpx_codec_put_slice_cb_fn_t cb,
313 void *user_priv);
314
355 vpx_codec_err_t vpx_codec_set_frame_buffer_functions(
356 vpx_codec_ctx_t *ctx, vpx_get_frame_buffer_cb_fn_t cb_get,
357 vpx_release_frame_buffer_cb_fn_t cb_release, void *cb_priv);
358
362 #ifdef __cplusplus
363 }
364 #endif
365 #endif // VPX_VPX_VPX_DECODER_H_
vpx_codec_dec_cfg::threads
unsigned int threads
Definition: vpx_decoder.h:108
vpx_codec_ctx
Codec context structure.
Definition: vpx_codec.h:197
vpx_codec_stream_info::sz
unsigned int sz
Definition: vpx_decoder.h:90
vpx_codec_stream_info::h
unsigned int h
Definition: vpx_decoder.h:92
vpx_codec_dec_cfg::h
unsigned int h
Definition: vpx_decoder.h:110
vpx_codec_dec_init_ver
vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t *ctx, vpx_codec_iface_t *iface, const vpx_codec_dec_cfg_t *cfg, vpx_codec_flags_t flags, int ver)
Initialize a decoder instance.
vpx_codec_register_put_slice_cb
vpx_codec_err_t vpx_codec_register_put_slice_cb(vpx_codec_ctx_t *ctx, vpx_codec_put_slice_cb_fn_t cb, void *user_priv)
Register for notification of slice completion.
vpx_release_frame_buffer_cb_fn_t
int(* vpx_release_frame_buffer_cb_fn_t)(void *priv, vpx_codec_frame_buffer_t *fb)
release frame buffer callback prototype
Definition: vpx_frame_buffer.h:76
vpx_codec_dec_cfg::w
unsigned int w
Definition: vpx_decoder.h:109
vpx_codec_register_put_frame_cb
vpx_codec_err_t vpx_codec_register_put_frame_cb(vpx_codec_ctx_t *ctx, vpx_codec_put_frame_cb_fn_t cb, void *user_priv)
Register for notification of frame completion.
vpx_codec_decode
vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t *ctx, const uint8_t *data, unsigned int data_sz, void *user_priv, long deadline)
Decode data.
vpx_codec_put_slice_cb_fn_t
void(* vpx_codec_put_slice_cb_fn_t)(void *user_priv, const vpx_image_t *img, const vpx_image_rect_t *valid, const vpx_image_rect_t *update)
put slice callback prototype
Definition: vpx_decoder.h:291
vpx_codec_get_frame
vpx_image_t * vpx_codec_get_frame(vpx_codec_ctx_t *ctx, vpx_codec_iter_t *iter)
Decoded frames iterator.
vpx_frame_buffer.h
Describes the decoder external frame buffer interface.
vpx_codec_iter_t
const typedef void * vpx_codec_iter_t
Iterator.
Definition: vpx_codec.h:187
vpx_codec_stream_info_t
struct vpx_codec_stream_info vpx_codec_stream_info_t
Stream properties.
vpx_image
Image Descriptor.
Definition: vpx_image.h:71
vpx_codec_stream_info::is_kf
unsigned int is_kf
Definition: vpx_decoder.h:93
vpx_codec_err_t
vpx_codec_err_t
Algorithm return codes.
Definition: vpx_codec.h:90
vpx_codec_flags_t
long vpx_codec_flags_t
Initialization-time Feature Enabling.
Definition: vpx_codec.h:167
vpx_codec_stream_info::w
unsigned int w
Definition: vpx_decoder.h:91
vpx_codec_get_stream_info
vpx_codec_err_t vpx_codec_get_stream_info(vpx_codec_ctx_t *ctx, vpx_codec_stream_info_t *si)
Return information about the current stream.
vpx_codec_stream_info
Stream properties.
Definition: vpx_decoder.h:89
vpx_codec_dec_cfg_t
struct vpx_codec_dec_cfg vpx_codec_dec_cfg_t
Initialization Configurations.
vpx_codec_iface_t
const struct vpx_codec_iface vpx_codec_iface_t
Codec interface structure.
Definition: vpx_codec.h:174
vpx_codec_put_frame_cb_fn_t
void(* vpx_codec_put_frame_cb_fn_t)(void *user_priv, const vpx_image_t *img)
put frame callback prototype
Definition: vpx_decoder.h:252
vpx_image_rect
Representation of a rectangle on a surface.
Definition: vpx_image.h:118
vpx_codec_set_frame_buffer_functions
vpx_codec_err_t vpx_codec_set_frame_buffer_functions(vpx_codec_ctx_t *ctx, vpx_get_frame_buffer_cb_fn_t cb_get, vpx_release_frame_buffer_cb_fn_t cb_release, void *cb_priv)
Pass in external frame buffers for the decoder to use.
vpx_get_frame_buffer_cb_fn_t
int(* vpx_get_frame_buffer_cb_fn_t)(void *priv, size_t min_size, vpx_codec_frame_buffer_t *fb)
get frame buffer callback prototype
Definition: vpx_frame_buffer.h:63
vpx_codec_dec_cfg
Initialization Configurations.
Definition: vpx_decoder.h:107
vpx_codec.h
Describes the codec algorithm interface to applications.
vpx_codec_peek_stream_info
vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t *iface, const uint8_t *data, unsigned int data_sz, vpx_codec_stream_info_t *si)
Parse stream info from a buffer.