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https://gitee.com/openharmony/third_party_ffmpeg
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f6d48b618a
The existing av_mediacodec_release_buffer allows the user to render or discard the Surface-backed frame. This new method allows the user to control exactly when the frame will be rendered to its SurfaceView. Available since Android API 21. Signed-off-by: Aman Gupta <aman@tmm1.net>
150 lines
3.9 KiB
C
150 lines
3.9 KiB
C
/*
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* Android MediaCodec public API functions
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*
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* Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "libavutil/error.h"
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#include "mediacodec.h"
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#if CONFIG_MEDIACODEC
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#include <jni.h>
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#include "libavcodec/avcodec.h"
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#include "libavutil/mem.h"
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#include "ffjni.h"
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#include "mediacodecdec_common.h"
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#include "version.h"
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AVMediaCodecContext *av_mediacodec_alloc_context(void)
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{
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return av_mallocz(sizeof(AVMediaCodecContext));
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}
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int av_mediacodec_default_init(AVCodecContext *avctx, AVMediaCodecContext *ctx, void *surface)
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{
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int ret = 0;
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JNIEnv *env = NULL;
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env = ff_jni_get_env(avctx);
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if (!env) {
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return AVERROR_EXTERNAL;
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}
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ctx->surface = (*env)->NewGlobalRef(env, surface);
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if (ctx->surface) {
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avctx->hwaccel_context = ctx;
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} else {
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av_log(avctx, AV_LOG_ERROR, "Could not create new global reference\n");
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ret = AVERROR_EXTERNAL;
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}
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return ret;
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}
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void av_mediacodec_default_free(AVCodecContext *avctx)
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{
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JNIEnv *env = NULL;
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AVMediaCodecContext *ctx = avctx->hwaccel_context;
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if (!ctx) {
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return;
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}
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env = ff_jni_get_env(avctx);
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if (!env) {
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return;
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}
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if (ctx->surface) {
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(*env)->DeleteGlobalRef(env, ctx->surface);
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ctx->surface = NULL;
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}
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av_freep(&avctx->hwaccel_context);
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}
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int av_mediacodec_release_buffer(AVMediaCodecBuffer *buffer, int render)
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{
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MediaCodecDecContext *ctx = buffer->ctx;
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int released = atomic_fetch_add(&buffer->released, 1);
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if (!released && (ctx->delay_flush || buffer->serial == atomic_load(&ctx->serial))) {
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atomic_fetch_sub(&ctx->hw_buffer_count, 1);
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av_log(ctx->avctx, AV_LOG_DEBUG,
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"Releasing output buffer %zd (%p) ts=%"PRId64" with render=%d [%d pending]\n",
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buffer->index, buffer, buffer->pts, render, atomic_load(&ctx->hw_buffer_count));
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return ff_AMediaCodec_releaseOutputBuffer(ctx->codec, buffer->index, render);
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}
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return 0;
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}
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int av_mediacodec_render_buffer_at_time(AVMediaCodecBuffer *buffer, int64_t time)
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{
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MediaCodecDecContext *ctx = buffer->ctx;
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int released = atomic_fetch_add(&buffer->released, 1);
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if (!released && (ctx->delay_flush || buffer->serial == atomic_load(&ctx->serial))) {
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atomic_fetch_sub(&ctx->hw_buffer_count, 1);
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av_log(ctx->avctx, AV_LOG_DEBUG,
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"Rendering output buffer %zd (%p) ts=%"PRId64" with time=%"PRId64" [%d pending]\n",
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buffer->index, buffer, buffer->pts, time, atomic_load(&ctx->hw_buffer_count));
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return ff_AMediaCodec_releaseOutputBufferAtTime(ctx->codec, buffer->index, time);
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}
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return 0;
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}
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#else
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#include <stdlib.h>
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AVMediaCodecContext *av_mediacodec_alloc_context(void)
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{
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return NULL;
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}
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int av_mediacodec_default_init(AVCodecContext *avctx, AVMediaCodecContext *ctx, void *surface)
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{
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return AVERROR(ENOSYS);
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}
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void av_mediacodec_default_free(AVCodecContext *avctx)
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{
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}
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int av_mediacodec_release_buffer(AVMediaCodecBuffer *buffer, int render)
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{
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return AVERROR(ENOSYS);
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}
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int av_mediacodec_render_buffer_at_time(AVMediaCodecBuffer *buffer, int64_t time)
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{
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return AVERROR(ENOSYS);
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}
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#endif
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