/* * Android MediaCodec public API * * Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVCODEC_MEDIACODEC_H #define AVCODEC_MEDIACODEC_H #include "libavcodec/avcodec.h" /** * This structure holds a reference to a android/view/Surface object that will * be used as output by the decoder. * */ AVMediaCodecContext; /** * Allocate and initialize a MediaCodec context. * * When decoding with MediaCodec is finished, the caller must free the * MediaCodec context with av_mediacodec_default_free. * * @return a pointer to a newly allocated AVMediaCodecContext on success, NULL otherwise */ AVMediaCodecContext *av_mediacodec_alloc_context(void); /** * Convenience function that sets up the MediaCodec context. * * @param avctx codec context * @param ctx MediaCodec context to initialize * @param surface reference to an android/view/Surface * @return 0 on success, < 0 otherwise */ int av_mediacodec_default_init(AVCodecContext *avctx, AVMediaCodecContext *ctx, void *surface); /** * This function must be called to free the MediaCodec context initialized with * av_mediacodec_default_init(). * * @param avctx codec context */ void av_mediacodec_default_free(AVCodecContext *avctx); /** * Opaque structure representing a MediaCodec buffer to render. */ AVMediaCodecBuffer; /** * Release a MediaCodec buffer and render it to the surface that is associated * with the decoder. This function should only be called once on a given * buffer, once released the underlying buffer returns to the codec, thus * subsequent calls to this function will have no effect. * * @param buffer the buffer to render * @param render 1 to release and render the buffer to the surface or 0 to * discard the buffer * @return 0 on success, < 0 otherwise */ int av_mediacodec_release_buffer(AVMediaCodecBuffer *buffer, int render); /** * Release a MediaCodec buffer and render it at the given time to the surface * that is associated with the decoder. The timestamp must be within one second * of the current `java/lang/System#nanoTime()` (which is implemented using * `CLOCK_MONOTONIC` on Android). See the Android MediaCodec documentation * of [`android/media/MediaCodec#releaseOutputBuffer(int,long)`][0] for more details. * * @param buffer the buffer to render * @param time timestamp in nanoseconds of when to render the buffer * @return 0 on success, < 0 otherwise * * [0]: https://developer.android.com/reference/android/media/MediaCodec#releaseOutputBuffer(int,%20long) */ int av_mediacodec_render_buffer_at_time(AVMediaCodecBuffer *buffer, int64_t time); #endif /* AVCODEC_MEDIACODEC_H */
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