Esempi in C++ (Cpp) per motionpixels_tableinit

Esempio n. 1

File: motionpixels.c Progetto: TaoheGit/hmi_sdl_android

static av_cold int mp_decode_init(AVCodecContext *avctx)
{
    MotionPixelsContext *mp = avctx->priv_data;
    int w4 = (avctx->width  + 3) & ~3;
    int h4 = (avctx->height + 3) & ~3;

    if(avctx->extradata_size < 2){
        av_log(avctx, AV_LOG_ERROR, "extradata too small\n");
        return AVERROR_INVALIDDATA;
    }

    motionpixels_tableinit();
    mp->avctx = avctx;
    ff_bswapdsp_init(&mp->bdsp);
    mp->changes_map = av_mallocz_array(avctx->width, h4);
    mp->offset_bits_len = av_log2(avctx->width * avctx->height) + 1;
    mp->vpt = av_mallocz_array(avctx->height, sizeof(YuvPixel));
    mp->hpt = av_mallocz_array(h4 / 4, w4 / 4 * sizeof(YuvPixel));
    if (!mp->changes_map || !mp->vpt || !mp->hpt) {
        av_freep(&mp->changes_map);
        av_freep(&mp->vpt);
        av_freep(&mp->hpt);
        return AVERROR(ENOMEM);
    }
    avctx->pix_fmt = AV_PIX_FMT_RGB555;

    mp->frame = av_frame_alloc();
    if (!mp->frame) {
        mp_decode_end(avctx);
        return AVERROR(ENOMEM);
    }

    return 0;
}

Esempio n. 2

File: motionpixels.c Progetto: GeoffreyPlitt/videoconverter.js

static av_cold int mp_decode_init(AVCodecContext *avctx)
{
    MotionPixelsContext *mp = avctx->priv_data;
    int w4 = (avctx->width  + 3) & ~3;
    int h4 = (avctx->height + 3) & ~3;

    if(avctx->extradata_size < 2){
        av_log(avctx, AV_LOG_ERROR, "extradata too small\n");
        return AVERROR_INVALIDDATA;
    }

    motionpixels_tableinit();
    mp->avctx = avctx;
    ff_dsputil_init(&mp->dsp, avctx);
    mp->changes_map = av_mallocz(avctx->width * h4);
    mp->offset_bits_len = av_log2(avctx->width * avctx->height) + 1;
    mp->vpt = av_mallocz(avctx->height * sizeof(YuvPixel));
    mp->hpt = av_mallocz(h4 * w4 / 16 * sizeof(YuvPixel));
    if (!mp->changes_map || !mp->vpt || !mp->hpt) {
        av_freep(&mp->changes_map);
        av_freep(&mp->vpt);
        av_freep(&mp->hpt);
        return AVERROR(ENOMEM);
    }
    avctx->pix_fmt = AV_PIX_FMT_RGB555;
    avcodec_get_frame_defaults(&mp->frame);
    return 0;
}

Esempio n. 3

File: motionpixels.c Progetto: CodeAsm/ffplay360

static av_cold int mp_decode_init(AVCodecContext *avctx)
{
    MotionPixelsContext *mp = avctx->priv_data;

    motionpixels_tableinit();
    mp->avctx = avctx;
    dsputil_init(&mp->dsp, avctx);
    mp->changes_map = av_mallocz(avctx->width * avctx->height);
    mp->offset_bits_len = av_log2(avctx->width * avctx->height) + 1;
    mp->vpt = av_mallocz(avctx->height * sizeof(YuvPixel));
    mp->hpt = av_mallocz(avctx->height * avctx->width / 16 * sizeof(YuvPixel));
    avctx->pix_fmt = PIX_FMT_RGB555;
    return 0;
}

Esempio n. 4

File: motionpixels.c Progetto: OS2World/LIB-libav

static av_cold int mp_decode_init(AVCodecContext *avctx)
{
    MotionPixelsContext *mp = avctx->priv_data;
    int w4 = (avctx->width  + 3) & ~3;
    int h4 = (avctx->height + 3) & ~3;

    motionpixels_tableinit();
    mp->avctx = avctx;
    ff_bswapdsp_init(&mp->bdsp);
    mp->changes_map = av_mallocz(avctx->width * h4);
    mp->offset_bits_len = av_log2(avctx->width * avctx->height) + 1;
    mp->vpt = av_mallocz(avctx->height * sizeof(YuvPixel));
    mp->hpt = av_mallocz(h4 * w4 / 16 * sizeof(YuvPixel));
    avctx->pix_fmt = AV_PIX_FMT_RGB555;

    mp->frame = av_frame_alloc();
    if (!mp->frame) {
        mp_decode_end(avctx);
        return AVERROR(ENOMEM);
    }

    return 0;
}