ijkplayer从ffmpeg指针获取sdl渲染信息并设置异常到流程

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获取abort_request流程：

is->abort_request

VideoState *is = ffp->is;

获取sdl流程：

typedef struct FFPlayer {

    /* extra fields */

    SDL_Aout *aout;

    SDL_Vout *vout;

}

sdl回调的call机制

ANativeWindow_lock

SDL_Android_NativeWindow_display_l

func_display_overlay_l

func_display_overlay

SDL_Vout *SDL_VoutAndroid_CreateForANativeWindow()

{

    SDL_Vout *vout = SDL_Vout_CreateInternal(sizeof(SDL_Vout_Opaque));

    if (!vout)

        return NULL;

    SDL_Vout_Opaque *opaque = vout->opaque;

    opaque->native_window = NULL;

    if (ISDL_Array__init(&opaque->overlay_manager, 32))

        goto fail;

    if (ISDL_Array__init(&opaque->overlay_pool, 32))

        goto fail;

    opaque->egl = IJK_EGL_create();

    if (!opaque->egl)

        goto fail;

    vout->opaque_class    = &g_nativewindow_class;

    vout->create_overlay  = func_create_overlay;

    vout->free_l          = func_free_l;

    vout->display_overlay = func_display_overlay;

    return vout;

fail:

    func_free_l(vout);

    return NULL;

}

SDL_VoutAndroid_CreateForAndroidSurface

IjkMediaPlayer *ijkmp_android_create(int(*msg_loop)(void*))

{

    IjkMediaPlayer *mp = ijkmp_create(msg_loop);

    if (!mp)

        goto fail;

    mp->ffplayer->vout = SDL_VoutAndroid_CreateForAndroidSurface();

    if (!mp->ffplayer->vout)

        goto fail;

    mp->ffplayer->pipeline = ffpipeline_create_from_android(mp->ffplayer);

    if (!mp->ffplayer->pipeline)

        goto fail;

    ffpipeline_set_vout(mp->ffplayer->pipeline, mp->ffplayer->vout);

    return mp;

fail:

    ijkmp_dec_ref_p(&mp);

    return NULL;

}

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