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Diffstat (limited to 'thirdparties/wince/include/vpx/vpx_frame_buffer.h')
-rw-r--r-- | thirdparties/wince/include/vpx/vpx_frame_buffer.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/thirdparties/wince/include/vpx/vpx_frame_buffer.h b/thirdparties/wince/include/vpx/vpx_frame_buffer.h new file mode 100644 index 0000000..e69df4b --- /dev/null +++ b/thirdparties/wince/include/vpx/vpx_frame_buffer.h @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2014 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef VPX_VPX_FRAME_BUFFER_H_ +#define VPX_VPX_FRAME_BUFFER_H_ + +/*!\file + * \brief Describes the decoder external frame buffer interface. + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "./vpx_integer.h" + +/*!\brief The maximum number of work buffers used by libvpx. + */ +#define VPX_MAXIMUM_WORK_BUFFERS 1 + +/*!\brief The maximum number of reference buffers that a VP9 encoder may use. + */ +#define VP9_MAXIMUM_REF_BUFFERS 8 + +/*!\brief External frame buffer + * + * This structure holds allocated frame buffers used by the decoder. + */ +typedef struct vpx_codec_frame_buffer { + uint8_t *data; /**< Pointer to the data buffer */ + size_t size; /**< Size of data in bytes */ + void *priv; /**< Frame's private data */ +} vpx_codec_frame_buffer_t; + +/*!\brief get frame buffer callback prototype + * + * This callback is invoked by the decoder to retrieve data for the frame + * buffer in order for the decode call to complete. The callback must + * allocate at least min_size in bytes and assign it to fb->data. Then the + * callback must set fb->size to the allocated size. The application does not + * need to align the allocated data. The callback is triggered when the + * decoder needs a frame buffer to decode a compressed image into. This + * function may be called more than once for every call to vpx_codec_decode. + * The application may set fb->priv to some data which will be passed + * back in the ximage and the release function call. |fb| is guaranteed to + * not be NULL. On success the callback must return 0. Any failure the + * callback must return a value less than 0. + * + * \param[in] priv Callback's private data + * \param[in] new_size Size in bytes needed by the buffer + * \param[in,out] fb Pointer to vpx_codec_frame_buffer_t + */ +typedef int (*vpx_get_frame_buffer_cb_fn_t)( + void *priv, size_t min_size, vpx_codec_frame_buffer_t *fb); + +/*!\brief release frame buffer callback prototype + * + * This callback is invoked by the decoder when the frame buffer is not + * referenced by any other buffers. |fb| is guaranteed to not be NULL. On + * success the callback must return 0. Any failure the callback must return + * a value less than 0. + * + * \param[in] priv Callback's private data + * \param[in] fb Pointer to vpx_codec_frame_buffer_t + */ +typedef int (*vpx_release_frame_buffer_cb_fn_t)( + void *priv, vpx_codec_frame_buffer_t *fb); + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // VPX_VPX_FRAME_BUFFER_H_ |