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avcodec/mediacodec: add ANativeWindow support 

ANativeWindow can be used without JVM.
This commit is contained in:
Zhao Zhili 2022-10-20 14:35:32 +00:00
parent 2697f23f4e
commit 3a59446967
5 changed files with 72 additions and 24 deletions
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46
libavcodec/mediacodec_surface.c
View File

@ -20,33 +20,59 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <android/native_window.h>
#include <jni.h>
#include "libavutil/mem.h"
#include "ffjni.h"
#include "mediacodec_surface.h"
FFANativeWindow *ff_mediacodec_surface_ref(void *surface, void *log_ctx)
FFANativeWindow *ff_mediacodec_surface_ref(void *surface, void *native_window, void *log_ctx)
{
JNIEnv *env = NULL;
FFANativeWindow *ret;
env = ff_jni_get_env(log_ctx);
if (!env) {
ret = av_mallocz(sizeof(*ret));
if (!ret)
return NULL;
if (surface) {
JNIEnv *env = NULL;
env = ff_jni_get_env(log_ctx);
if (env)
ret->surface = (*env)->NewGlobalRef(env, surface);
}
return (*env)->NewGlobalRef(env, surface);
if (native_window) {
ANativeWindow_acquire(native_window);
ret->native_window = native_window;
}
if (!ret->surface && !ret->native_window) {
av_log(log_ctx, AV_LOG_ERROR, "Both surface and native_window are NULL\n");
av_freep(&ret);
}
return ret;
}
int ff_mediacodec_surface_unref(FFANativeWindow *window, void *log_ctx)
{
JNIEnv *env = NULL;
if (!window)
return 0;
env = ff_jni_get_env(log_ctx);
if (!env) {
return AVERROR_EXTERNAL;
if (window->surface) {
JNIEnv *env = NULL;
env = ff_jni_get_env(log_ctx);
if (env)
(*env)->DeleteGlobalRef(env, window->surface);
}
(*env)->DeleteGlobalRef(env, window);
if (window->native_window)
ANativeWindow_release(window->native_window);
av_free(window);
return 0;
}

8
libavcodec/mediacodec_surface.h
View File

@ -25,10 +25,12 @@
#include "libavcodec/avcodec.h"
struct FFANativeWindow;
typedef struct FFANativeWindow FFANativeWindow;
typedef struct FFANativeWindow {
void *surface;
void *native_window;
} FFANativeWindow;
FFANativeWindow *ff_mediacodec_surface_ref(void *surface, void *log_ctx);
FFANativeWindow *ff_mediacodec_surface_ref(void *surface, void *native_window, void *log_ctx);
int ff_mediacodec_surface_unref(FFANativeWindow *window, void *log_ctx);
#endif /* AVCODEC_MEDIACODEC_SURFACE_H */

30
libavcodec/mediacodec_wrapper.c
View File

@ -1371,12 +1371,17 @@ fail:
return ret;
}
static int mediacodec_jni_configure(FFAMediaCodec* ctx, const FFAMediaFormat* format_ctx, void* surface, void *crypto, uint32_t flags)
static int mediacodec_jni_configure(FFAMediaCodec *ctx,
const FFAMediaFormat* format_ctx,
FFANativeWindow* window,
void *crypto,
uint32_t flags)
{
int ret = 0;
JNIEnv *env = NULL;
FFAMediaCodecJni *codec = (FFAMediaCodecJni *)ctx;
const FFAMediaFormatJni *format = (FFAMediaFormatJni *)format_ctx;
jobject *surface = window ? window->surface : NULL;
JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
@ -2151,16 +2156,27 @@ static int mediacodec_ndk_delete(FFAMediaCodec* ctx)
return ret;
}
static int mediacodec_ndk_configure(FFAMediaCodec* ctx, const FFAMediaFormat* format_ctx, void* surface, void *crypto, uint32_t flags)
static int mediacodec_ndk_configure(FFAMediaCodec* ctx,
const FFAMediaFormat* format_ctx,
FFANativeWindow* window,
void *crypto,
uint32_t flags)
{
FFAMediaCodecNdk *codec = (FFAMediaCodecNdk *)ctx;
FFAMediaFormatNdk *format = (FFAMediaFormatNdk *)format_ctx;
media_status_t status;
ANativeWindow *native_window = NULL;
if (surface) {
JNIEnv *env = NULL;
JNI_GET_ENV_OR_RETURN(env, ctx, -1);
codec->window = ANativeWindow_fromSurface(env, surface);
if (window) {
if (window->surface) {
JNIEnv *env = NULL;
JNI_GET_ENV_OR_RETURN(env, ctx, -1);
native_window = ANativeWindow_fromSurface(env, window->surface);
// Save for release
codec->window = native_window;
} else if (window->native_window) {
native_window = window->native_window;
}
}
if (format_ctx->class != &amediaformat_ndk_class) {
@ -2168,7 +2184,7 @@ static int mediacodec_ndk_configure(FFAMediaCodec* ctx, const FFAMediaFormat* fo
return AVERROR(EINVAL);
}
status = codec->configure(codec->impl, format->impl, codec->window, NULL, flags);
status = codec->configure(codec->impl, format->impl, native_window, NULL, flags);
if (status != AMEDIA_OK) {
av_log(codec, AV_LOG_ERROR, "configure failed, %d\n", status);
return AVERROR_EXTERNAL;

8
libavcodec/mediacodec_wrapper.h
View File

@ -27,6 +27,7 @@
#include <sys/types.h>
#include "avcodec.h"
#include "mediacodec_surface.h"
/**
* The following API around MediaCodec and MediaFormat is based on the
@ -163,7 +164,7 @@ struct FFAMediaCodec {
FFAMediaCodec* (*createEncoderByType)(const char *mime_type);
int (*delete)(FFAMediaCodec* codec);
int (*configure)(FFAMediaCodec* codec, const FFAMediaFormat* format, void* surface, void *crypto, uint32_t flags);
int (*configure)(FFAMediaCodec* codec, const FFAMediaFormat* format, FFANativeWindow* surface, void *crypto, uint32_t flags);
int (*start)(FFAMediaCodec* codec);
int (*stop)(FFAMediaCodec* codec);
int (*flush)(FFAMediaCodec* codec);
@ -202,7 +203,10 @@ FFAMediaCodec* ff_AMediaCodec_createCodecByName(const char *name, int ndk);
FFAMediaCodec* ff_AMediaCodec_createDecoderByType(const char *mime_type, int ndk);
FFAMediaCodec* ff_AMediaCodec_createEncoderByType(const char *mime_type, int ndk);
static inline int ff_AMediaCodec_configure(FFAMediaCodec* codec, const FFAMediaFormat* format, void* surface, void *crypto, uint32_t flags)
static inline int ff_AMediaCodec_configure(FFAMediaCodec *codec,
const FFAMediaFormat *format,
FFANativeWindow *surface,
void *crypto, uint32_t flags)
{
return codec->configure(codec, format, surface, crypto, flags);
}

4
libavcodec/mediacodecdec_common.c
View File

@ -589,14 +589,14 @@ int ff_mediacodec_dec_init(AVCodecContext *avctx, MediaCodecDecContext *s,
if (device_ctx->type == AV_HWDEVICE_TYPE_MEDIACODEC) {
if (device_ctx->hwctx) {
AVMediaCodecDeviceContext *mediacodec_ctx = (AVMediaCodecDeviceContext *)device_ctx->hwctx;
s->surface = ff_mediacodec_surface_ref(mediacodec_ctx->surface, avctx);
s->surface = ff_mediacodec_surface_ref(mediacodec_ctx->surface, mediacodec_ctx->native_window, avctx);
av_log(avctx, AV_LOG_INFO, "Using surface %p\n", s->surface);
}
}
}
if (!s->surface && user_ctx && user_ctx->surface) {
s->surface = ff_mediacodec_surface_ref(user_ctx->surface, avctx);
s->surface = ff_mediacodec_surface_ref(user_ctx->surface, NULL, avctx);
av_log(avctx, AV_LOG_INFO, "Using surface %p\n", s->surface);
}
}