1 /*
2 * Android MediaCodec public API
3 *
4 * Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #ifndef AVCODEC_MEDIACODEC_H
24 #define AVCODEC_MEDIACODEC_H
25
27
28 /**
29 * This structure holds a reference to a android/view/Surface object that will
30 * be used as output by the decoder.
31 *
32 */
34
35 /**
36 * android/view/Surface object reference.
37 */
39
41
42 /**
43 * Allocate and initialize a MediaCodec context.
44 *
45 * When decoding with MediaCodec is finished, the caller must free the
46 * MediaCodec context with av_mediacodec_default_free.
47 *
48 * @return a pointer to a newly allocated AVMediaCodecContext on success, NULL otherwise
49 */
51
52 /**
53 * Convenience function that sets up the MediaCodec context.
54 *
55 * @param avctx codec context
56 * @param ctx MediaCodec context to initialize
57 * @param surface reference to an android/view/Surface
58 * @return 0 on success, < 0 otherwise
59 */
61
62 /**
63 * This function must be called to free the MediaCodec context initialized with
64 * av_mediacodec_default_init().
65 *
66 * @param avctx codec context
67 */
69
70 /**
71 * Opaque structure representing a MediaCodec buffer to render.
72 */
74
75 /**
76 * Release a MediaCodec buffer and render it to the surface that is associated
77 * with the decoder. This function should only be called once on a given
78 * buffer, once released the underlying buffer returns to the codec, thus
79 * subsequent calls to this function will have no effect.
80 *
81 * @param buffer the buffer to render
82 * @param render 1 to release and render the buffer to the surface or 0 to
83 * discard the buffer
84 * @return 0 on success, < 0 otherwise
85 */
87
88 /**
89 * Release a MediaCodec buffer and render it at the given time to the surface
90 * that is associated with the decoder. The timestamp must be within one second
91 * of the current `java/lang/System#nanoTime()` (which is implemented using
92 * `CLOCK_MONOTONIC` on Android). See the Android MediaCodec documentation
93 * of [`android/media/MediaCodec#releaseOutputBuffer(int,long)`][0] for more details.
94 *
95 * @param buffer the buffer to render
96 * @param time timestamp in nanoseconds of when to render the buffer
97 * @return 0 on success, < 0 otherwise
98 *
99 * [0]: https://developer.android.com/reference/android/media/MediaCodec#releaseOutputBuffer(int,%20long)
100 */
102
103 #endif /* AVCODEC_MEDIACODEC_H */