Esempi in C++ (Cpp) per get_quant_quality

Esempio n. 1

File: nuv_c.cpp Progetto: mcodegeeks/OpenKODE-Framework

static int codec_reinit(AVCodecContext *avctx, int width, int height, int quality) {
    NuvContext *c = (NuvContext *)avctx->priv_data;
    width  = FFALIGN(width,  2);
    height = FFALIGN(height, 2);
    if (quality >= 0)
        get_quant_quality(c, quality);
    if (width != c->width || height != c->height) {
        // also reserve space for a possible additional header
        int buf_size = 24 + height * width * 3 / 2 + AV_LZO_OUTPUT_PADDING;
        if (av_image_check_size(height, width, 0, avctx) < 0 ||
            buf_size > INT_MAX/8)
            return -1;
        avctx->width = c->width = width;
        avctx->height = c->height = height;
        av_fast_malloc(&c->decomp_buf, &c->decomp_size, buf_size);
        if (!c->decomp_buf) {
            av_log(avctx, AV_LOG_ERROR, "Can't allocate decompression buffer.\n");
            return AVERROR(ENOMEM);
        }
        rtjpeg_decode_init(&c->rtj, &c->dsp, c->width, c->height, c->lq, c->cq);
        return 1;
    } else if (quality != c->quality)
        rtjpeg_decode_init(&c->rtj, &c->dsp, c->width, c->height, c->lq, c->cq);
    return 0;
}

Esempio n. 2

File: nuv.c Progetto: felixge/FFmpeg

static int codec_reinit(AVCodecContext *avctx, int width, int height, int quality) {
    NuvContext *c = avctx->priv_data;
    width = (width + 1) & ~1;
    height = (height + 1) & ~1;
    if (quality >= 0)
        get_quant_quality(c, quality);
    if (width != c->width || height != c->height) {
        if (av_image_check_size(height, width, 0, avctx) < 0)
            return 0;
        avctx->width = c->width = width;
        avctx->height = c->height = height;
        av_fast_malloc(&c->decomp_buf, &c->decomp_size, c->height * c->width * 3 / 2);
        if (!c->decomp_buf) {
            av_log(avctx, AV_LOG_ERROR, "Can't allocate decompression buffer.\n");
            return 0;
        }
        rtjpeg_decode_init(&c->rtj, &c->dsp, c->width, c->height, c->lq, c->cq);
    } else if (quality != c->quality)
        rtjpeg_decode_init(&c->rtj, &c->dsp, c->width, c->height, c->lq, c->cq);
    return 1;
}

Esempio n. 3

File: nuv.c Progetto: 119/dropcam_for_iphone

static int codec_reinit(AVCodecContext *avctx, int width, int height, int quality) {
    NuvContext *c = avctx->priv_data;
    width = (width + 1) & ~1;
    height = (height + 1) & ~1;
    if (quality >= 0)
        get_quant_quality(c, quality);
    if (width != c->width || height != c->height) {
        if (avcodec_check_dimensions(avctx, height, width) < 0)
            return 0;
        avctx->width = c->width = width;
        avctx->height = c->height = height;
        c->decomp_size = c->height * c->width * 3 / 2;
        c->decomp_buf = av_realloc(c->decomp_buf, c->decomp_size + AV_LZO_OUTPUT_PADDING);
        if (!c->decomp_buf) {
            av_log(avctx, AV_LOG_ERROR, "Can't allocate decompression buffer.\n");
            return 0;
        }
        rtjpeg_decode_init(&c->rtj, &c->dsp, c->width, c->height, c->lq, c->cq);
    } else if (quality != c->quality)
        rtjpeg_decode_init(&c->rtj, &c->dsp, c->width, c->height, c->lq, c->cq);
    return 1;
}

Esempio n. 4

File: nuv.c Progetto: venkatarajasekhar/Qt

static int codec_reinit(AVCodecContext *avctx, int width, int height,
                        int quality)
{
    NuvContext *c = avctx->priv_data;
    int ret;

    width  = FFALIGN(width,  2);
    height = FFALIGN(height, 2);
    if (quality >= 0)
        get_quant_quality(c, quality);
    if (width != c->width || height != c->height) {
        // also reserve space for a possible additional header
        int buf_size = height * width * 3 / 2
                     + FFMAX(AV_LZO_OUTPUT_PADDING, FF_INPUT_BUFFER_PADDING_SIZE)
                     + RTJPEG_HEADER_SIZE;
        if (buf_size > INT_MAX/8)
            return -1;
        if ((ret = av_image_check_size(height, width, 0, avctx)) < 0)
            return ret;
        avctx->width  = c->width  = width;
        avctx->height = c->height = height;
        av_fast_malloc(&c->decomp_buf, &c->decomp_size,
                       buf_size);
        if (!c->decomp_buf) {
            av_log(avctx, AV_LOG_ERROR,
                   "Can't allocate decompression buffer.\n");
            return AVERROR(ENOMEM);
        }
        ff_rtjpeg_decode_init(&c->rtj, c->width, c->height, c->lq, c->cq);
        av_frame_unref(c->pic);
        return 1;
    } else if (quality != c->quality)
        ff_rtjpeg_decode_init(&c->rtj, c->width, c->height, c->lq, c->cq);

    return 0;
}