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Side by Side Diff: source/libvpx/vpx/vpx_frame_buffer.h

Issue 592203002: libvpx: Pull from upstream (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/
Patch Set: Created 6 years, 2 months ago
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1 /* 1 /*
2 * Copyright (c) 2014 The WebM project authors. All Rights Reserved. 2 * Copyright (c) 2014 The WebM project authors. All Rights Reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 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 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 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
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36 typedef struct vpx_codec_frame_buffer { 36 typedef struct vpx_codec_frame_buffer {
37 uint8_t *data; /**< Pointer to the data buffer */ 37 uint8_t *data; /**< Pointer to the data buffer */
38 size_t size; /**< Size of data in bytes */ 38 size_t size; /**< Size of data in bytes */
39 void *priv; /**< Frame's private data */ 39 void *priv; /**< Frame's private data */
40 } vpx_codec_frame_buffer_t; 40 } vpx_codec_frame_buffer_t;
41 41
42 /*!\brief get frame buffer callback prototype 42 /*!\brief get frame buffer callback prototype
43 * 43 *
44 * This callback is invoked by the decoder to retrieve data for the frame 44 * This callback is invoked by the decoder to retrieve data for the frame
45 * buffer in order for the decode call to complete. The callback must 45 * buffer in order for the decode call to complete. The callback must
46 * allocate at least min_size in bytes and assign it to fb->data. Then the 46 * allocate at least min_size in bytes and assign it to fb->data. The callback
47 * callback must set fb->size to the allocated size. The application does not 47 * must zero out all the data allocated. Then the callback must set fb->size
48 * need to align the allocated data. The callback is triggered when the 48 * to the allocated size. The application does not need to align the allocated
49 * decoder needs a frame buffer to decode a compressed image into. This 49 * data. The callback is triggered when the decoder needs a frame buffer to
50 * function may be called more than once for every call to vpx_codec_decode. 50 * decode a compressed image into. This function may be called more than once
51 * The application may set fb->priv to some data which will be passed 51 * for every call to vpx_codec_decode. The application may set fb->priv to
52 * back in the ximage and the release function call. |fb| is guaranteed to 52 * some data which will be passed back in the ximage and the release function
53 * not be NULL. On success the callback must return 0. Any failure the 53 * call. |fb| is guaranteed to not be NULL. On success the callback must
54 * callback must return a value less than 0. 54 * return 0. Any failure the callback must return a value less than 0.
55 * 55 *
56 * \param[in] priv Callback's private data 56 * \param[in] priv Callback's private data
57 * \param[in] new_size Size in bytes needed by the buffer 57 * \param[in] new_size Size in bytes needed by the buffer
58 * \param[in,out] fb Pointer to vpx_codec_frame_buffer_t 58 * \param[in,out] fb Pointer to vpx_codec_frame_buffer_t
59 */ 59 */
60 typedef int (*vpx_get_frame_buffer_cb_fn_t)( 60 typedef int (*vpx_get_frame_buffer_cb_fn_t)(
61 void *priv, size_t min_size, vpx_codec_frame_buffer_t *fb); 61 void *priv, size_t min_size, vpx_codec_frame_buffer_t *fb);
62 62
63 /*!\brief release frame buffer callback prototype 63 /*!\brief release frame buffer callback prototype
64 * 64 *
65 * This callback is invoked by the decoder when the frame buffer is not 65 * This callback is invoked by the decoder when the frame buffer is not
66 * referenced by any other buffers. |fb| is guaranteed to not be NULL. On 66 * referenced by any other buffers. |fb| is guaranteed to not be NULL. On
67 * success the callback must return 0. Any failure the callback must return 67 * success the callback must return 0. Any failure the callback must return
68 * a value less than 0. 68 * a value less than 0.
69 * 69 *
70 * \param[in] priv Callback's private data 70 * \param[in] priv Callback's private data
71 * \param[in] fb Pointer to vpx_codec_frame_buffer_t 71 * \param[in] fb Pointer to vpx_codec_frame_buffer_t
72 */ 72 */
73 typedef int (*vpx_release_frame_buffer_cb_fn_t)( 73 typedef int (*vpx_release_frame_buffer_cb_fn_t)(
74 void *priv, vpx_codec_frame_buffer_t *fb); 74 void *priv, vpx_codec_frame_buffer_t *fb);
75 75
76 #ifdef __cplusplus 76 #ifdef __cplusplus
77 } // extern "C" 77 } // extern "C"
78 #endif 78 #endif
79 79
80 #endif // VPX_VPX_FRAME_BUFFER_H_ 80 #endif // VPX_VPX_FRAME_BUFFER_H_
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