Function ff_ffv1_encode_buffer_size

libavcodec/ffv1enc.c:1686–1708

}

size_t ff_ffv1_encode_buffer_size(AVCodecContext *avctx)
{
    FFV1Context *f = avctx->priv_data;

    int w = avctx->width  + f->num_h_slices;
    int h = avctx->height + f->num_v_slices;
    size_t maxsize = w*h * (1 + f->transparency);
    if (f->chroma_planes)
        maxsize += AV_CEIL_RSHIFT(w, f->chroma_h_shift) * AV_CEIL_RSHIFT(h, f->chroma_v_shift) * 2;
    maxsize += f->slice_count * 800; //for slice header
    if (f->version > 3) {
        maxsize *= f->bits_per_raw_sample + 1;
        if (f->remap_mode)
            maxsize += f->slice_count * 70000 * (1 + 2*f->chroma_planes + f->transparency);
    } else {
        maxsize += f->slice_count * 2 * (avctx->width + avctx->height); //for bug with slices that code some pixels more than once
        maxsize *= 8*(2*f->bits_per_raw_sample + 5);
    }
    maxsize >>= 3;
    maxsize += FF_INPUT_BUFFER_MIN_SIZE;

    return maxsize;
}

static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
                        const AVFrame *pict, int *got_packet)