c2b336815d
New API is supposed to be used from example code. Current implementation only supports IVF containers (will be extended to Y4M). Change-Id: Ib7da87237690b1a28297bdf03bc41c6836a84b7e
57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/*
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* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef IVFDEC_H_
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#define IVFDEC_H_
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#include "./tools_common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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int file_is_ivf(struct VpxInputContext *input);
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int ivf_read_frame(FILE *infile, uint8_t **buffer,
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size_t *bytes_read, size_t *buffer_size);
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// The following code is work in progress. It is going to be in a separate file
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// and support transparent reading of IVF and Y4M formats. Right now only IVF
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// format is supported for simplicity. The main goal the API is to be
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// simple and easy to use in example code (and probably in vpxenc/vpxdec later).
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// All low-level details like memory buffer management are hidden from API
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// users.
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struct vpx_video;
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typedef struct vpx_video vpx_video_t;
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// Opens the input file and inspects it to determine file type. Returns an
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// opaque vpx_video_t* upon success, or NULL upon failure.
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vpx_video_t *vpx_video_open_file(FILE *file);
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// Frees all resources associated with vpx_video_t returned from
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// vpx_video_open_file() call
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void vpx_video_close(vpx_video_t *video);
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int vpx_video_get_width(vpx_video_t *video);
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int vpx_video_get_height(vpx_video_t *video);
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unsigned int vpx_video_get_fourcc(vpx_video_t *video);
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// Reads video frame bytes from the file and stores them into internal buffer.
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int vpx_video_read_frame(vpx_video_t *video);
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// Returns the pointer to internal memory buffer with frame bytes read from
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// last call to vpx_video_read_frame().
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const unsigned char *vpx_video_get_frame(vpx_video_t *video, size_t *size);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif // IVFDEC_H_
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