C++ (Cpp) qsv_init_child_ctx Examples

Example #1

File: hwcontext_qsv.c Project: ZhaoliangGuo/FFmpeg

static int qsv_init_pool(AVHWFramesContext *ctx, uint32_t fourcc)
{
    QSVFramesContext              *s = ctx->internal->priv;
    AVQSVFramesContext *frames_hwctx = ctx->hwctx;

    int i, ret = 0;

    if (ctx->initial_pool_size <= 0) {
        av_log(ctx, AV_LOG_ERROR, "QSV requires a fixed frame pool size\n");
        return AVERROR(EINVAL);
    }

    s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
                                            sizeof(*s->surfaces_internal));
    if (!s->surfaces_internal)
        return AVERROR(ENOMEM);

    for (i = 0; i < ctx->initial_pool_size; i++) {
        ret = qsv_init_surface(ctx, &s->surfaces_internal[i]);
        if (ret < 0)
            return ret;
    }

    if (!(frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME)) {
        ret = qsv_init_child_ctx(ctx);
        if (ret < 0)
            return ret;
    }

    ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(mfxFrameSurface1),
                                                        ctx, qsv_pool_alloc, NULL);
    if (!ctx->internal->pool_internal)
        return AVERROR(ENOMEM);

    frames_hwctx->surfaces    = s->surfaces_internal;
    frames_hwctx->nb_surfaces = ctx->initial_pool_size;

    return 0;
}

Example #2

File: hwcontext_qsv.c Project: Wonderful2014/libav

static int qsv_init_pool(AVHWFramesContext *ctx, uint32_t fourcc)
{
    QSVFramesContext              *s = ctx->internal->priv;
    AVQSVFramesContext *frames_hwctx = ctx->hwctx;
    const AVPixFmtDescriptor *desc;

    int i, ret = 0;

    desc = av_pix_fmt_desc_get(ctx->sw_format);
    if (!desc)
        return AVERROR_BUG;

    if (ctx->initial_pool_size <= 0) {
        av_log(ctx, AV_LOG_ERROR, "QSV requires a fixed frame pool size\n");
        return AVERROR(EINVAL);
    }

    s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
                                            sizeof(*s->surfaces_internal));
    if (!s->surfaces_internal)
        return AVERROR(ENOMEM);

    for (i = 0; i < ctx->initial_pool_size; i++) {
        mfxFrameSurface1 *surf = &s->surfaces_internal[i];

        surf->Info.BitDepthLuma   = desc->comp[0].depth;
        surf->Info.BitDepthChroma = desc->comp[0].depth;
        surf->Info.Shift          = desc->comp[0].depth > 8;

        if (desc->log2_chroma_w && desc->log2_chroma_h)
            surf->Info.ChromaFormat   = MFX_CHROMAFORMAT_YUV420;
        else if (desc->log2_chroma_w)
            surf->Info.ChromaFormat   = MFX_CHROMAFORMAT_YUV422;
        else
            surf->Info.ChromaFormat   = MFX_CHROMAFORMAT_YUV444;

        surf->Info.FourCC         = fourcc;
        surf->Info.Width          = ctx->width;
        surf->Info.CropW          = ctx->width;
        surf->Info.Height         = ctx->height;
        surf->Info.CropH          = ctx->height;
        surf->Info.FrameRateExtN  = 25;
        surf->Info.FrameRateExtD  = 1;
    }

    if (!(frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME)) {
        ret = qsv_init_child_ctx(ctx);
        if (ret < 0)
            return ret;
    }

    ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(mfxFrameSurface1),
                                                        ctx, qsv_pool_alloc, NULL);
    if (!ctx->internal->pool_internal)
        return AVERROR(ENOMEM);

    frames_hwctx->surfaces    = s->surfaces_internal;
    frames_hwctx->nb_surfaces = ctx->initial_pool_size;

    return 0;
}